diff --git a/src/secp256k1/.cirrus.yml b/src/secp256k1/.cirrus.yml index 4bd15511a4d18..2b2dface1b4e1 100644 --- a/src/secp256k1/.cirrus.yml +++ b/src/secp256k1/.cirrus.yml @@ -22,6 +22,7 @@ env: RECOVERY: no SCHNORRSIG: no ELLSWIFT: no + SILENTPAYMENTS: no ### test options SECP256K1_TEST_ITERS: BENCH: yes @@ -68,6 +69,7 @@ task: RECOVERY: yes SCHNORRSIG: yes ELLSWIFT: yes + SILENTPAYMENTS: yes matrix: # Currently only gcc-snapshot, the other compilers are tested on GHA with QEMU - env: { CC: 'gcc-snapshot' } @@ -84,6 +86,7 @@ task: RECOVERY: yes SCHNORRSIG: yes ELLSWIFT: yes + SILENTPAYMENTS: yes WRAPPER_CMD: 'valgrind --error-exitcode=42' SECP256K1_TEST_ITERS: 2 matrix: diff --git a/src/secp256k1/.github/workflows/ci.yml b/src/secp256k1/.github/workflows/ci.yml index ade94e1eec792..1331016a5e7f7 100644 --- a/src/secp256k1/.github/workflows/ci.yml +++ b/src/secp256k1/.github/workflows/ci.yml @@ -33,6 +33,7 @@ env: RECOVERY: 'no' SCHNORRSIG: 'no' ELLSWIFT: 'no' + SILENTPAYMENTS: 'no' ### test options SECP256K1_TEST_ITERS: BENCH: 'yes' @@ -71,18 +72,18 @@ jobs: matrix: configuration: - env_vars: { WIDEMUL: 'int64', RECOVERY: 'yes' } - - env_vars: { WIDEMUL: 'int64', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - env_vars: { WIDEMUL: 'int64', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', SILENTPAYMENTS: 'yes' } - env_vars: { WIDEMUL: 'int128' } - env_vars: { WIDEMUL: 'int128_struct', ELLSWIFT: 'yes' } - env_vars: { WIDEMUL: 'int128', RECOVERY: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } - - env_vars: { WIDEMUL: 'int128', ECDH: 'yes', SCHNORRSIG: 'yes' } + - env_vars: { WIDEMUL: 'int128', ECDH: 'yes', SCHNORRSIG: 'yes', SILENTPAYMENTS: 'yes' } - env_vars: { WIDEMUL: 'int128', ASM: 'x86_64', ELLSWIFT: 'yes' } - env_vars: { RECOVERY: 'yes', SCHNORRSIG: 'yes' } - - env_vars: { CTIMETESTS: 'no', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', CPPFLAGS: '-DVERIFY' } + - env_vars: { CTIMETESTS: 'no', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', SILENTPAYMENTS: 'yes', CPPFLAGS: '-DVERIFY' } - env_vars: { BUILD: 'distcheck', WITH_VALGRIND: 'no', CTIMETESTS: 'no', BENCH: 'no' } - env_vars: { CPPFLAGS: '-DDETERMINISTIC' } - env_vars: { CFLAGS: '-O0', CTIMETESTS: 'no' } - - env_vars: { CFLAGS: '-O1', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - env_vars: { CFLAGS: '-O1', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', SILENTPAYMENTS: 'yes' } - env_vars: { ECMULTGENKB: 2, ECMULTWINDOW: 2 } - env_vars: { ECMULTGENKB: 86, ECMULTWINDOW: 4 } cc: @@ -141,6 +142,7 @@ jobs: RECOVERY: 'yes' SCHNORRSIG: 'yes' ELLSWIFT: 'yes' + SILENTPAYMENTS: 'yes' CC: ${{ matrix.cc }} steps: @@ -185,6 +187,7 @@ jobs: RECOVERY: 'yes' SCHNORRSIG: 'yes' ELLSWIFT: 'yes' + SILENTPAYMENTS: 'yes' CTIMETESTS: 'no' steps: @@ -236,6 +239,7 @@ jobs: RECOVERY: 'yes' SCHNORRSIG: 'yes' ELLSWIFT: 'yes' + SILENTPAYMENTS: 'yes' CTIMETESTS: 'no' steps: @@ -281,6 +285,7 @@ jobs: RECOVERY: 'yes' SCHNORRSIG: 'yes' ELLSWIFT: 'yes' + SILENTPAYMENTS: 'yes' CTIMETESTS: 'no' strategy: @@ -336,6 +341,7 @@ jobs: RECOVERY: 'yes' SCHNORRSIG: 'yes' ELLSWIFT: 'yes' + SILENTPAYMENTS: 'yes' CTIMETESTS: 'no' steps: @@ -388,6 +394,7 @@ jobs: RECOVERY: 'yes' SCHNORRSIG: 'yes' ELLSWIFT: 'yes' + SILENTPAYMENTS: 'yes' CTIMETESTS: 'no' SECP256K1_TEST_ITERS: 2 @@ -439,6 +446,7 @@ jobs: RECOVERY: 'yes' SCHNORRSIG: 'yes' ELLSWIFT: 'yes' + SILENTPAYMENTS: 'yes' CTIMETESTS: 'no' CFLAGS: '-fsanitize=undefined,address -g' UBSAN_OPTIONS: 'print_stacktrace=1:halt_on_error=1' @@ -503,6 +511,7 @@ jobs: RECOVERY: 'yes' SCHNORRSIG: 'yes' ELLSWIFT: 'yes' + SILENTPAYMENTS: 'yes' CC: 'clang' SECP256K1_TEST_ITERS: 32 ASM: 'no' @@ -549,6 +558,7 @@ jobs: RECOVERY: 'yes' SCHNORRSIG: 'yes' ELLSWIFT: 'yes' + SILENTPAYMENTS: 'yes' CTIMETESTS: 'no' strategy: @@ -605,14 +615,14 @@ jobs: fail-fast: false matrix: env_vars: - - { WIDEMUL: 'int64', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - { WIDEMUL: 'int64', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', SILENTPAYMENTS: 'yes' } - { WIDEMUL: 'int128_struct', ECMULTGENKB: 2, ECMULTWINDOW: 4 } - - { WIDEMUL: 'int128', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } + - { WIDEMUL: 'int128', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', SILENTPAYMENTS: 'yes' } - { WIDEMUL: 'int128', RECOVERY: 'yes' } - - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes' } - - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CC: 'gcc' } - - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', WRAPPER_CMD: 'valgrind --error-exitcode=42', SECP256K1_TEST_ITERS: 2 } - - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CC: 'gcc', WRAPPER_CMD: 'valgrind --error-exitcode=42', SECP256K1_TEST_ITERS: 2 } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', SILENTPAYMENTS: 'yes' } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', SILENTPAYMENTS: 'yes', CC: 'gcc' } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', SILENTPAYMENTS: 'yes', WRAPPER_CMD: 'valgrind --error-exitcode=42', SECP256K1_TEST_ITERS: 2 } + - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', SILENTPAYMENTS: 'yes', CC: 'gcc', WRAPPER_CMD: 'valgrind --error-exitcode=42', SECP256K1_TEST_ITERS: 2 } - { WIDEMUL: 'int128', RECOVERY: 'yes', ECDH: 'yes', SCHNORRSIG: 'yes', ELLSWIFT: 'yes', CPPFLAGS: '-DVERIFY', CTIMETESTS: 'no' } - BUILD: 'distcheck' @@ -780,6 +790,7 @@ jobs: RECOVERY: 'yes' SCHNORRSIG: 'yes' ELLSWIFT: 'yes' + SILENTPAYMENTS: 'yes' steps: - name: Checkout diff --git a/src/secp256k1/.gitignore b/src/secp256k1/.gitignore index 574902b8b5e45..9a5be287dbfec 100644 --- a/src/secp256k1/.gitignore +++ b/src/secp256k1/.gitignore @@ -10,6 +10,7 @@ ctime_tests ecdh_example ecdsa_example schnorr_example +silentpayments_example *.exe *.so *.a diff --git a/src/secp256k1/CMakeLists.txt b/src/secp256k1/CMakeLists.txt index 7e3465a75b2ec..f183628eb7df9 100644 --- a/src/secp256k1/CMakeLists.txt +++ b/src/secp256k1/CMakeLists.txt @@ -59,9 +59,14 @@ option(SECP256K1_ENABLE_MODULE_RECOVERY "Enable ECDSA pubkey recovery module." O option(SECP256K1_ENABLE_MODULE_EXTRAKEYS "Enable extrakeys module." ON) option(SECP256K1_ENABLE_MODULE_SCHNORRSIG "Enable schnorrsig module." ON) option(SECP256K1_ENABLE_MODULE_ELLSWIFT "Enable ElligatorSwift module." ON) +option(SECP256K1_ENABLE_MODULE_SILENTPAYMENTS "Enable Silent Payments module." OFF) # Processing must be done in a topological sorting of the dependency graph # (dependent module first). +if(SECP256K1_ENABLE_MODULE_SILENTPAYMENTS) + add_compile_definitions(ENABLE_MODULE_SILENTPAYMENTS=1) +endif() + if(SECP256K1_ENABLE_MODULE_ELLSWIFT) add_compile_definitions(ENABLE_MODULE_ELLSWIFT=1) endif() @@ -185,7 +190,7 @@ else() string(REGEX REPLACE "-DNDEBUG[ \t\r\n]*" "" CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE}") string(REGEX REPLACE "-DNDEBUG[ \t\r\n]*" "" CMAKE_C_FLAGS_MINSIZEREL "${CMAKE_C_FLAGS_MINSIZEREL}") # Prefer -O2 optimization level. (-O3 is CMake's default for Release for many compilers.) - string(REGEX REPLACE "-O3[ \t\r\n]*" "-O2" CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE}") + string(REGEX REPLACE "-O3( |$)" "-O2\\1" CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE}") endif() # Define custom "Coverage" build type. @@ -305,6 +310,7 @@ message(" ECDSA pubkey recovery ............... ${SECP256K1_ENABLE_MODULE_RECOV message(" extrakeys ........................... ${SECP256K1_ENABLE_MODULE_EXTRAKEYS}") message(" schnorrsig .......................... ${SECP256K1_ENABLE_MODULE_SCHNORRSIG}") message(" ElligatorSwift ...................... ${SECP256K1_ENABLE_MODULE_ELLSWIFT}") +message(" Silent Payments ..................... ${SECP256K1_ENABLE_MODULE_SILENTPAYMENTS}") message("Parameters:") message(" ecmult window size .................. ${SECP256K1_ECMULT_WINDOW_SIZE}") message(" ecmult gen table size ............... ${SECP256K1_ECMULT_GEN_KB} KiB") diff --git a/src/secp256k1/Makefile.am b/src/secp256k1/Makefile.am index 322e44eaab93d..cd5535643c996 100644 --- a/src/secp256k1/Makefile.am +++ b/src/secp256k1/Makefile.am @@ -184,6 +184,17 @@ schnorr_example_LDFLAGS += -lbcrypt endif TESTS += schnorr_example endif +if ENABLE_MODULE_SILENTPAYMENTS +noinst_PROGRAMS += silentpayments_example +silentpayments_example_SOURCES = examples/silentpayments.c +silentpayments_example_CPPFLAGS = -I$(top_srcdir)/include -DSECP256K1_STATIC +silentpayments_example_LDADD = libsecp256k1.la +silentpayments_example_LDFLAGS = -static +if BUILD_WINDOWS +silentpayments_example_LDFLAGS += -lbcrypt +endif +TESTS += silentpayments_example +endif endif ### Precomputed tables @@ -273,3 +284,7 @@ endif if ENABLE_MODULE_ELLSWIFT include src/modules/ellswift/Makefile.am.include endif + +if ENABLE_MODULE_SILENTPAYMENTS +include src/modules/silentpayments/Makefile.am.include +endif diff --git a/src/secp256k1/ci/ci.sh b/src/secp256k1/ci/ci.sh index c7d2e9e4ea4ea..0d0b1dbbb8858 100755 --- a/src/secp256k1/ci/ci.sh +++ b/src/secp256k1/ci/ci.sh @@ -13,7 +13,7 @@ print_environment() { # does not rely on bash. for var in WERROR_CFLAGS MAKEFLAGS BUILD \ ECMULTWINDOW ECMULTGENKB ASM WIDEMUL WITH_VALGRIND EXTRAFLAGS \ - EXPERIMENTAL ECDH RECOVERY SCHNORRSIG ELLSWIFT \ + EXPERIMENTAL ECDH RECOVERY SCHNORRSIG ELLSWIFT SILENTPAYMENTS \ SECP256K1_TEST_ITERS BENCH SECP256K1_BENCH_ITERS CTIMETESTS\ EXAMPLES \ HOST WRAPPER_CMD \ @@ -77,6 +77,7 @@ esac --with-ecmult-gen-kb="$ECMULTGENKB" \ --enable-module-ecdh="$ECDH" --enable-module-recovery="$RECOVERY" \ --enable-module-ellswift="$ELLSWIFT" \ + --enable-module-silentpayments="$SILENTPAYMENTS" \ --enable-module-schnorrsig="$SCHNORRSIG" \ --enable-examples="$EXAMPLES" \ --enable-ctime-tests="$CTIMETESTS" \ diff --git a/src/secp256k1/configure.ac b/src/secp256k1/configure.ac index adae1897872d7..dd10cc3f27519 100644 --- a/src/secp256k1/configure.ac +++ b/src/secp256k1/configure.ac @@ -188,6 +188,10 @@ AC_ARG_ENABLE(module_ellswift, AS_HELP_STRING([--enable-module-ellswift],[enable ElligatorSwift module [default=yes]]), [], [SECP_SET_DEFAULT([enable_module_ellswift], [yes], [yes])]) +AC_ARG_ENABLE(module_silentpayments, + AS_HELP_STRING([--enable-module-silentpayments],[enable Silent Payments module [default=no]]), [], + [SECP_SET_DEFAULT([enable_module_silentpayments], [no], [yes])]) + AC_ARG_ENABLE(external_default_callbacks, AS_HELP_STRING([--enable-external-default-callbacks],[enable external default callback functions [default=no]]), [], [SECP_SET_DEFAULT([enable_external_default_callbacks], [no], [no])]) @@ -394,6 +398,10 @@ SECP_CFLAGS="$SECP_CFLAGS $WERROR_CFLAGS" # Processing must be done in a reverse topological sorting of the dependency graph # (dependent module first). +if test x"$enable_module_silentpayments" = x"yes"; then + SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DENABLE_MODULE_SILENTPAYMENTS=1" +fi + if test x"$enable_module_ellswift" = x"yes"; then SECP_CONFIG_DEFINES="$SECP_CONFIG_DEFINES -DENABLE_MODULE_ELLSWIFT=1" fi @@ -450,6 +458,7 @@ AM_CONDITIONAL([ENABLE_MODULE_RECOVERY], [test x"$enable_module_recovery" = x"ye AM_CONDITIONAL([ENABLE_MODULE_EXTRAKEYS], [test x"$enable_module_extrakeys" = x"yes"]) AM_CONDITIONAL([ENABLE_MODULE_SCHNORRSIG], [test x"$enable_module_schnorrsig" = x"yes"]) AM_CONDITIONAL([ENABLE_MODULE_ELLSWIFT], [test x"$enable_module_ellswift" = x"yes"]) +AM_CONDITIONAL([ENABLE_MODULE_SILENTPAYMENTS], [test x"$enable_module_silentpayments" = x"yes"]) AM_CONDITIONAL([USE_EXTERNAL_ASM], [test x"$enable_external_asm" = x"yes"]) AM_CONDITIONAL([USE_ASM_ARM], [test x"$set_asm" = x"arm32"]) AM_CONDITIONAL([BUILD_WINDOWS], [test "$build_windows" = "yes"]) @@ -472,6 +481,7 @@ echo " module recovery = $enable_module_recovery" echo " module extrakeys = $enable_module_extrakeys" echo " module schnorrsig = $enable_module_schnorrsig" echo " module ellswift = $enable_module_ellswift" +echo " module silentpayments = $enable_module_silentpayments" echo echo " asm = $set_asm" echo " ecmult window size = $set_ecmult_window" diff --git a/src/secp256k1/examples/silentpayments.c b/src/secp256k1/examples/silentpayments.c new file mode 100644 index 0000000000000..f866faff87718 --- /dev/null +++ b/src/secp256k1/examples/silentpayments.c @@ -0,0 +1,417 @@ +/************************************************************************* + * Written in 2024 by josibake * + * To the extent possible under law, the author(s) have dedicated all * + * copyright and related and neighboring rights to the software in this * + * file to the public domain worldwide. This software is distributed * + * without any warranty. For the CC0 Public Domain Dedication, see * + * EXAMPLES_COPYING or https://creativecommons.org/publicdomain/zero/1.0 * + *************************************************************************/ + +#include +#include +#include + +#include +#include +#include + +#include "examples_util.h" + +/* Static data for Bob and Carol's silent payment addresses. + * This consists of a scan key for each and the addresse data for each + */ +static unsigned char smallest_outpoint[36] = { + 0x16,0x9e,0x1e,0x83,0xe9,0x30,0x85,0x33,0x91, + 0xbc,0x6f,0x35,0xf6,0x05,0xc6,0x75,0x4c,0xfe, + 0xad,0x57,0xcf,0x83,0x87,0x63,0x9d,0x3b,0x40, + 0x96,0xc5,0x4f,0x18,0xf4,0x00,0x00,0x00,0x00 +}; +static unsigned char bob_scan_key[32] = { + 0xa8,0x90,0x54,0xc9,0x5b,0xe3,0xc3,0x01, + 0x56,0x65,0x74,0xf2,0xaa,0x93,0xad,0xe0, + 0x51,0x85,0x09,0x03,0xa6,0x9c,0xbd,0xd1, + 0xd4,0x7e,0xae,0x26,0x3d,0x7b,0xc0,0x31 +}; +static unsigned char bob_spend_pubkey[33] = { + 0x02,0xee,0x97,0xdf,0x83,0xb2,0x54,0x6a, + 0xf5,0xa7,0xd0,0x62,0x15,0xd9,0x8b,0xcb, + 0x63,0x7f,0xe0,0x5d,0xd0,0xfa,0x37,0x3b, + 0xd8,0x20,0xe6,0x64,0xd3,0x72,0xde,0x9a,0x01 +}; +static unsigned char bob_address[2][33] = { + { + 0x02,0x15,0x40,0xae,0xa8,0x97,0x54,0x7a, + 0xd4,0x39,0xb4,0xe0,0xf6,0x09,0xe5,0xf0, + 0xfa,0x63,0xde,0x89,0xab,0x11,0xed,0xe3, + 0x1e,0x8c,0xde,0x4b,0xe2,0x19,0x42,0x5f,0x23 + }, + { + 0x02,0x3e,0xff,0xf8,0x18,0x51,0x65,0xea, + 0x63,0xa9,0x92,0xb3,0x9f,0x31,0xd8,0xfd, + 0x8e,0x0e,0x64,0xae,0xf9,0xd3,0x88,0x07, + 0x34,0x97,0x37,0x14,0xa5,0x3d,0x83,0x11,0x8d + } +}; +static unsigned char carol_scan_key[32] = { + 0x04,0xb2,0xa4,0x11,0x63,0x5c,0x09,0x77, + 0x59,0xaa,0xcd,0x0f,0x00,0x5a,0x4c,0x82, + 0xc8,0xc9,0x28,0x62,0xc6,0xfc,0x28,0x4b, + 0x80,0xb8,0xef,0xeb,0xc2,0x0c,0x3d,0x17 +}; +static unsigned char carol_address[2][33] = { + { + 0x03,0xbb,0xc6,0x3f,0x12,0x74,0x5d,0x3b, + 0x9e,0x9d,0x24,0xc6,0xcd,0x7a,0x1e,0xfe, + 0xba,0xd0,0xa7,0xf4,0x69,0x23,0x2f,0xbe, + 0xcf,0x31,0xfb,0xa7,0xb4,0xf7,0xdd,0xed,0xa8 + }, + { + 0x03,0x81,0xeb,0x9a,0x9a,0x9e,0xc7,0x39, + 0xd5,0x27,0xc1,0x63,0x1b,0x31,0xb4,0x21, + 0x56,0x6f,0x5c,0x2a,0x47,0xb4,0xab,0x5b, + 0x1f,0x6a,0x68,0x6d,0xfb,0x68,0xea,0xb7,0x16 + } +}; + +/* Labels + * The structs and call back function are for demonstration only and not optimized. + * In a production usecase, it is expected that the caller will be using a much more performant + * method for storing and querying labels. + */ + +struct label_cache_entry { + secp256k1_pubkey label; + unsigned char label_tweak[32]; +}; + +struct labels_cache { + const secp256k1_context *ctx; + size_t entries_used; + struct label_cache_entry entries[5]; +}; + +const unsigned char* label_lookup(const secp256k1_pubkey* key, const void* cache_ptr) { + const struct labels_cache* cache = (const struct labels_cache*)cache_ptr; + size_t i; + for (i = 0; i < cache->entries_used; i++) { + if (secp256k1_ec_pubkey_cmp(cache->ctx, &cache->entries[i].label, key) == 0) { + return cache->entries[i].label_tweak; + } + } + return NULL; +} + +int main(void) { + enum { N_TX_INPUTS = 2, N_TX_OUTPUTS = 3 }; + unsigned char randomize[32]; + unsigned char xonly_print[32]; + secp256k1_xonly_pubkey tx_inputs[N_TX_INPUTS]; + secp256k1_xonly_pubkey tx_outputs[N_TX_OUTPUTS]; + int ret; + size_t i; + /* Before we can call actual API functions, we need to create a "context". */ + secp256k1_context* ctx = secp256k1_context_create(SECP256K1_CONTEXT_NONE); + if (!fill_random(randomize, sizeof(randomize))) { + printf("Failed to generate randomness\n"); + return 1; + } + /* Randomizing the context is recommended to protect against side-channel + * leakage See `secp256k1_context_randomize` in secp256k1.h for more + * information about it. This should never fail. */ + ret = secp256k1_context_randomize(ctx, randomize); + assert(ret); + + /*** Sending ***/ + { + secp256k1_keypair sender_seckeys[N_TX_INPUTS]; + const secp256k1_keypair *sender_seckey_ptrs[N_TX_INPUTS]; + secp256k1_silentpayments_recipient recipients[N_TX_OUTPUTS]; + const secp256k1_silentpayments_recipient *recipient_ptrs[N_TX_OUTPUTS]; + secp256k1_xonly_pubkey *generated_output_ptrs[N_TX_OUTPUTS]; + char* address_amounts[N_TX_OUTPUTS] = {"1.0 BTC", "2.0 BTC", "3.0 BTC"}; + unsigned char (*sp_addresses[N_TX_OUTPUTS])[2][33]; + + /*** Generate private keys for the sender *** + * + * In this example, only taproot inputs are used but the function can be called with + * a mix of taproot seckeys and plain seckeys. Taproot seckeys are passed as keypairs + * to allow the sending function to check if the private keys need to be negated without needing + * to do an expensive pubkey generation. This is not needed for plain seckeys since there is no need + * for negation. + * + * The public key from each input keypair is saved in the `tx_inputs` array. This array will be used + * later in the example to represent the public keys the recipient will extracte from the + * transaction inputs. + */ + + for (i = 0; i < 2; i++) { + /* If the secret key is zero or out of range (bigger than secp256k1's + * order), we try to sample a new key. Note that the probability of this + * happening is negligible. */ + while (1) { + unsigned char seckey[32]; + if (!fill_random(seckey, sizeof(seckey))) { + printf("Failed to generate randomness\n"); + return 1; + } + /* Try to create a keypair with a valid context, it should only fail if + * the secret key is zero or out of range. */ + if (secp256k1_keypair_create(ctx, &sender_seckeys[i], seckey)) { + sender_seckey_ptrs[i] = &sender_seckeys[i]; + ret = secp256k1_keypair_xonly_pub(ctx, &tx_inputs[i], NULL, &sender_seckeys[i]); + assert(ret); + break; + } else { + printf("Failed to create keypair\n"); + return 1; + } + } + } + /*** Create the recipient objects ***/ + + /* Alice is sending to Bob and Carol in this transaction: + * + * 1. One output to Bob's labelled address + * 2. Two outputs for Carol (1.0 and 3.0 bitcoin) + * + * Alice creates the recipient objects and adds the index of the original ordering (i.e. the ordering + * of the `sp_addresses` array) to each object. This index is used to return the generated outputs in + * the original ordering so that Alice can match up the generated outputs with the correct amounts. + * + * Note: to create multiple outputs for Carol, Alice simply passes her silent payment + * address mutltiple times. + */ + sp_addresses[0] = &carol_address; /* : 1.0 BTC */ + sp_addresses[1] = &bob_address; /* : 2.0 BTC */ + sp_addresses[2] = &carol_address; /* : 3.0 BTC */ + for (i = 0; i < N_TX_OUTPUTS; i++) { + ret = secp256k1_ec_pubkey_parse(ctx, &recipients[i].scan_pubkey, (*(sp_addresses[i]))[0], 33); + assert(ret); + ret = secp256k1_ec_pubkey_parse(ctx, &recipients[i].spend_pubkey, (*(sp_addresses[i]))[1], 33); + assert(ret); + recipients[i].index = i; + recipient_ptrs[i] = &recipients[i]; + } + for (i = 0; i < N_TX_OUTPUTS; i++) { + generated_output_ptrs[i] = &tx_outputs[i]; + } + ret = secp256k1_silentpayments_sender_create_outputs(ctx, + generated_output_ptrs, + recipient_ptrs, N_TX_OUTPUTS, + smallest_outpoint, + sender_seckey_ptrs, N_TX_INPUTS, + NULL, 0 + ); + assert(ret); + printf("Alice created the following outputs for Bob and Carol: \n"); + for (i = 0; i < N_TX_OUTPUTS; i++) { + printf(" "); + printf("%s : ", address_amounts[i]); + secp256k1_xonly_pubkey_serialize(ctx, xonly_print, &tx_outputs[i]); + print_hex(xonly_print, sizeof(xonly_print)); + } + /* It's best practice to try to clear secrets from memory after using them. + * This is done because some bugs can allow an attacker to leak memory, for + * example through "out of bounds" array access (see Heartbleed), Or the OS + * swapping them to disk. Hence, we overwrite the secret key buffer with zeros. + * + * Here we are preventing these writes from being optimized out, as any good compiler + * will remove any writes that aren't used. */ + for (i = 0; i < N_TX_INPUTS; i++) { + secure_erase(&sender_seckeys[i], sizeof(sender_seckeys[i])); + } + } + + /*** Receiving ***/ + { + /*** Transaction data *** + * + * Here we create a few global variables to represent the transaction data: + * + * 1. The transaction inputs, `tx_input_ptrs` + * 2. The transaction outputs, `tx_output_ptrs` + * + * These will be used to demonstrate scanning as a full node and scanning as a light client. + */ + const secp256k1_xonly_pubkey *tx_input_ptrs[N_TX_INPUTS]; + const secp256k1_xonly_pubkey *tx_output_ptrs[N_TX_OUTPUTS]; + unsigned char light_client_data33[33]; + + for (i = 0; i < N_TX_INPUTS; i++) { + tx_input_ptrs[i] = &tx_inputs[i]; + } + for (i = 0; i < N_TX_OUTPUTS; i++) { + tx_output_ptrs[i] = &tx_outputs[i]; + } + + /*** Scanning with labels as a full node (Bob) *** + * + * Since Bob has access to the full transaction, scanning is simple: + * + * 1. Collect the relevant data from the transaction inputs and call + * `secp256k1_silentpayments_recipient_public_data_create` + * 2. Call `secp256k1_silentpayments_recipient_scan_outputs` + * + * Additionally, since Bob has access to the full transaction outputs when scanning its easy for him + * to scan with labels, as demonstrated below. For efficient scanning, Bob keeps a cache of + * every label he has previously used and uses a callback to check if a potential label exists + * in his cache. Since the labels are created using an incremental integer `m`, if Bob ever + * forgets how many labels he has previously used, he can pregenerate a large number of + * labels (e.g. 0..100_000) and use that while scanning. + */ + { + secp256k1_silentpayments_found_output found_outputs[N_TX_OUTPUTS]; + secp256k1_silentpayments_found_output *found_output_ptrs[N_TX_OUTPUTS]; + secp256k1_silentpayments_public_data public_data; + secp256k1_pubkey spend_pubkey; + size_t n_found_outputs; + unsigned int m = 1; + struct labels_cache labels_cache; + + for (i = 0; i < N_TX_OUTPUTS; i++) { + found_output_ptrs[i] = &found_outputs[i]; + } + + /* In this contrived example, our label context needs the secp256k1 context because our lookup function + * is calling `secp256k1_ec_pubkey_cmp`. In practice, this context can be anything the lookup function needs. + */ + labels_cache.ctx = ctx; + + /* Load Bob's spend public key */ + ret = secp256k1_ec_pubkey_parse(ctx, &spend_pubkey, bob_spend_pubkey, 33); + + /* Add an entry to the cache. This implies Bob has previously called `secp256k1_silentpayments_recipient_create_labelled_spend_pubkey` + * and used the labelled spend pubkey to encode a labelled silent payments address. + */ + ret = secp256k1_silentpayments_recipient_create_label_tweak(ctx, + &labels_cache.entries[0].label, + labels_cache.entries[0].label_tweak, + bob_scan_key, + m + ); + assert(ret); + labels_cache.entries_used = 1; + + /* Bob collects the data from the transaction inputs and creates a `secp256k1_silentpayments_public_data` object. + * He uses this for his own scanning and also serializes the `public_data` object to send to light clients. We will + * use this later for Carol, who is scanning as a light client. Note, anyone can create and vend these `public_data` + * objecs, i.e. you don't need to be a silent payments wallet, just someone interested in vending this data to light + * clients, e.g. a wallet service provider. In our example, Bob is scanning for himself but also sharing this data + * with light clients. + */ + ret = secp256k1_silentpayments_recipient_public_data_create(ctx, + &public_data, + smallest_outpoint, + tx_input_ptrs, N_TX_INPUTS, + NULL, 0 /* null because no eligible plain pubkey inputs were found in the tx */ + ); + assert(ret); + /* Save the `public_data` output. This combines the `input_hash` scalar and public key sum by multiplying `input_hash * A_sum`. + * The output is then saved as a 33 byte compressed key. Storing it this way saves 32 bytes for the light client because + * now it can be send as a 33 byte compressed public key instead of 33 bytes for A_sum and 32 bytes for input_hash. + */ + ret = secp256k1_silentpayments_recipient_public_data_serialize(ctx, light_client_data33, &public_data); + assert(ret); + + /* Scan the transaction */ + n_found_outputs = 0; + ret = secp256k1_silentpayments_recipient_scan_outputs(ctx, + found_output_ptrs, &n_found_outputs, + tx_output_ptrs, N_TX_OUTPUTS, + bob_scan_key, + &public_data, + &spend_pubkey, + label_lookup, &labels_cache /* NULL, NULL if scanning without labels */ + ); + assert(n_found_outputs == 1); + printf("\n"); + printf("Bob found the following outputs: \n"); + for (i = 0; i < n_found_outputs; i++) { + printf(" "); + secp256k1_xonly_pubkey_serialize(ctx, xonly_print, &found_outputs[i].output); + print_hex(xonly_print, sizeof(xonly_print)); + } + } + + /*** Scanning as a light client (Carol) *** + * + * Being a light client, Carol likely does not have access to the transaction outputs. This + * means she will need to first generate an output, check if it exists in the UTXO set (e.g. + * BIP158 or some other means of querying) and only proceed to check the next output (by + * incrementing `k`) if the first output exists. + * + * For the transaction inputs, she needs the 33 byte compressed public key which is `input_hash * A_sum`. + */ + { + /* In practice, Carol wouldn't know the number of outputs ahead of time but we are cheating here + * to keep the example simple. + */ + unsigned char ser_found_outputs[2][32]; + unsigned char shared_secret[33]; + secp256k1_pubkey spend_pubkey; + secp256k1_silentpayments_public_data public_data; + size_t n_found_outputs; + + /* Load Carol's spend public key */ + ret = secp256k1_ec_pubkey_parse(ctx, &spend_pubkey, carol_address[1], 33); + assert(ret); + + /* Scan, one output at a time, using the light client data from earlier */ + ret = secp256k1_silentpayments_recipient_public_data_parse(ctx, &public_data, light_client_data33); + assert(ret); + ret = secp256k1_silentpayments_recipient_create_shared_secret(ctx, + shared_secret, + carol_scan_key, + &public_data + ); + assert(ret); + n_found_outputs = 0; + { + int found = 0; + size_t k = 0; + secp256k1_xonly_pubkey potential_output; + + while(1) { + + ret = secp256k1_silentpayments_recipient_create_output_pubkey(ctx, + &potential_output, + shared_secret, + &spend_pubkey, + k + ); + assert(ret); + /* At this point, we check that the utxo exists with a light client protocol. + * For this example, we'll just iterate through the list of transaction outputs + */ + found = 0; + for (i = 0; i < N_TX_OUTPUTS; i++) { + if (secp256k1_xonly_pubkey_cmp(ctx, &potential_output, &tx_outputs[i]) == 0) { + secp256k1_xonly_pubkey_serialize(ctx, ser_found_outputs[n_found_outputs], &potential_output); + /* If found, create a new output with k++ and check again */ + found = 1; + n_found_outputs++; + k++; + break; + } + } + /* If we generate an output and it does not exist in the UTXO set, + * we are done scanning this transaction */ + if (!found) { + break; + } + } + } + + printf("\n"); + printf("Carol found the following outputs: \n"); + for (i = 0; i < n_found_outputs; i++) { + printf(" "); + print_hex(ser_found_outputs[i], 32); + } + } + } + + /* This will clear everything from the context and free the memory */ + secp256k1_context_destroy(ctx); + return 0; +} diff --git a/src/secp256k1/include/secp256k1_silentpayments.h b/src/secp256k1/include/secp256k1_silentpayments.h new file mode 100644 index 0000000000000..e01fec75b9412 --- /dev/null +++ b/src/secp256k1/include/secp256k1_silentpayments.h @@ -0,0 +1,331 @@ +#ifndef SECP256K1_SILENTPAYMENTS_H +#define SECP256K1_SILENTPAYMENTS_H + +#include "secp256k1.h" +#include "secp256k1_extrakeys.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* This module provides an implementation for Silent Payments, as specified in BIP352. + * This particularly involves the creation of input tweak data by summing up private + * or public keys and the derivation of a shared secret using Elliptic Curve Diffie-Hellman. + * Combined are either: + * - spender's private keys and recipient's public key (a * B, sender side) + * - spender's public keys and recipient's private key (A * b, recipient side) + * With this result, the necessary key material for ultimately creating/scanning + * or spending Silent Payment outputs can be determined. + * + * Note that this module is _not_ a full implementation of BIP352, as it + * inherently doesn't deal with higher-level concepts like addresses, output + * script types or transactions. The intent is to provide a module for abstracting away + * the elliptic-curve operations required for the protocol. For any wallet software already + * using libsecp256k1, this API should provide all the functions needed for a Silent Payments + * implementation without requiring any further elliptic-curve operations from the wallet. + */ + +/* This struct serves as an In param for passing the silent payment address data. + * The index field is for when more than one address is being sent to in a transaction. Index is + * set based on the original ordering of the addresses and used to return the generated outputs + * matching the original ordering. When more than one recipient is used the recipient array + * will be sorted in place as part of generating the outputs, but the generated outputs will be + * returned in the original ordering specified by the index to ensure the caller is able + * to match up the generated outputs to the correct silent payment address (e.g. to be able to + * assign the correct amounts to the correct generated outputs in the final transaction). + */ +typedef struct { + secp256k1_pubkey scan_pubkey; + secp256k1_pubkey spend_pubkey; + size_t index; +} secp256k1_silentpayments_recipient; + +/** Create Silent Payment outputs for recipient(s). + * + * Given a list of n private keys a_1...a_n (one for each silent payment + * eligible input to spend), a serialized outpoint, and a list of recipients, + * create the taproot outputs: + * + * a_sum = a_1 + a_2 + ... + a_n + * input_hash = hash(outpoint_smallest || (a_sum * G)) + * taproot_output = B_spend + hash(a_sum * input_hash * B_scan || k) * G + * + * If necessary, the private keys are negated to enforce the right y-parity. + * For that reason, the private keys have to be passed in via two different parameter + * pairs, depending on whether the seckeys correspond to x-only outputs or not. + * + * Returns: 1 if creation of outputs was successful. 0 if an error occured. + * Args: ctx: pointer to a context object + * Out: generated_outputs: pointer to an array of pointers to xonly pubkeys, one per recipient. + * The order of outputs here matches the original ordering of the + * recipients array. + * In: recipients: pointer to an array of pointers to silent payment recipients, + * where each recipient is a scan public key, a spend public key, and + * an index indicating its position in the original ordering. + * The recipient array will be sorted in place, but generated outputs + * are saved in the `generated_outputs` array to match the ordering + * from the index field. This ensures the caller is able to match the + * generated outputs to the correct silent payment addresses. The same + * recipient can be passed multiple times to create multiple + * outputs for the same recipient. + * n_recipients: the number of recipients. This is equal to the total + * number of outputs to be generated as each recipient may passed + * multiple times to generate multiple outputs for the same recipient + * outpoint_smallest36: serialized smallest outpoint + * taproot_seckeys: pointer to an array of pointers to 32-byte private keys + * of taproot inputs (can be NULL if no private keys of + * taproot inputs are used) + * n_taproot_seckeys: the number of sender's taproot input private keys + * plain_seckeys: pointer to an array of pointers to 32-byte private keys + * of non-taproot inputs (can be NULL if no private keys of + * non-taproot inputs are used) + * n_plain_seckeys: the number of sender's non-taproot input private keys + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_silentpayments_sender_create_outputs( + const secp256k1_context *ctx, + secp256k1_xonly_pubkey **generated_outputs, + const secp256k1_silentpayments_recipient **recipients, + size_t n_recipients, + const unsigned char *outpoint_smallest36, + const secp256k1_keypair * const *taproot_seckeys, + size_t n_taproot_seckeys, + const unsigned char * const *plain_seckeys, + size_t n_plain_seckeys +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(5); + +/** Create Silent Payment label tweak and label. + * + * Given a recipient's scan key b_scan and a label integer m, calculate + * the corresponding label tweak and label: + * + * label_tweak = hash(b_scan || m) + * label = label_tweak * G + * + * Returns: 1 if label tweak and label creation was successful. 0 if an error occured. + * Args: ctx: pointer to a context object + * Out: label: pointer to the resulting label public key + * label_tweak32: pointer to the 32 byte label tweak + * In: recipient_scan_key: pointer to the recipient's scan key + * m: label integer (0 is used for change outputs) + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_silentpayments_recipient_create_label_tweak( + const secp256k1_context *ctx, + secp256k1_pubkey *label, + unsigned char *label_tweak32, + const unsigned char *recipient_scan_key, + unsigned int m +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4); + +/** Create Silent Payment labelled spend public key. + * + * Given a recipient's spend public key B_spend and a label, calculate + * the corresponding serialized labelled spend public key: + * + * B_m = B_spend + label + * + * The result is used by the recipient to create a Silent Payment address, consisting + * of the serialized and concatenated scan public key and (labelled) spend public key each. + * + * Returns: 1 if labelled spend public key creation was successful. 0 if an error occured. + * Args: ctx: pointer to a context object + * Out: labelled_spend_pubkey: pointer to the resulting labelled spend public key + * In: recipient_spend_pubkey: pointer to the recipient's spend pubkey + * label: pointer to the the recipient's label public key + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_silentpayments_recipient_create_labelled_spend_pubkey( + const secp256k1_context *ctx, + secp256k1_pubkey *labelled_spend_pubkey, + const secp256k1_pubkey *recipient_spend_pubkey, + const secp256k1_pubkey *label +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4); + +/** Opaque data structure that holds silent payments public input data. + * + * This structure does not contain secret data. Guaranteed to be 98 bytes in size. It can be safely + * copied/moved. Created with `secp256k1_silentpayments_public_data_create`. Can be serialized as + * a compressed public key using `secp256k1_silentpayments_public_data_serialize`. The serialization + * is intended for sending the public input data to light clients. Light clients can use this + * serialization with `secp256k1_silentpayments_public_data_parse`. + */ +typedef struct { + unsigned char data[98]; +} secp256k1_silentpayments_public_data; + +/** Compute Silent Payment public data from input public keys and transaction inputs. + * + * Given a list of n public keys A_1...A_n (one for each silent payment + * eligible input to spend) and a serialized outpoint_smallest, compute + * the corresponding input public tweak data: + * + * A_sum = A_1 + A_2 + ... + A_n + * input_hash = hash(outpoint_lowest || A_sum) + * + * The public keys have to be passed in via two different parameter pairs, + * one for regular and one for x-only public keys, in order to avoid the need + * of users converting to a common pubkey format before calling this function. + * The resulting data is can be used for scanning on the recipient side, or stored + * in an index for late use (e.g. wallet rescanning, vending data to light clients). + * + * If calling this function for scanning, the reciever must provide an output param + * for the `input_hash`. If calling this function for simply aggregating the inputs + * for later use, the caller can save the result with `silentpayments_public_data_serialize`. + * + * Returns: 1 if tweak data creation was successful. 0 if an error occured. + * Args: ctx: pointer to a context object + * Out: public_data: pointer to public_data object containing the summed public key and + * input_hash. + * In: outpoint_smallest36: serialized smallest outpoint + * xonly_pubkeys: pointer to an array of pointers to taproot x-only + * public keys (can be NULL if no taproot inputs are used) + * n_xonly_pubkeys: the number of taproot input public keys + * plain_pubkeys: pointer to an array of pointers to non-taproot + * public keys (can be NULL if no non-taproot inputs are used) + * n_plain_pubkeys: the number of non-taproot input public keys + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_silentpayments_recipient_public_data_create( + const secp256k1_context *ctx, + secp256k1_silentpayments_public_data *public_data, + const unsigned char *outpoint_smallest36, + const secp256k1_xonly_pubkey * const *xonly_pubkeys, + size_t n_xonly_pubkeys, + const secp256k1_pubkey * const *plain_pubkeys, + size_t n_plain_pubkeys +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + +/** Serialize a silentpayments_public_data object into a 33-byte sequence. + * + * Returns: 1 always. + * + * Args: ctx: pointer to a context object. + * Out: output33: pointer to a 33-byte array to place the serialized `silentpayments_public_data` in. + * In: public_data: pointer to an initialized silentpayments_public_data object. + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_silentpayments_recipient_public_data_serialize( + const secp256k1_context *ctx, + unsigned char *output33, + const secp256k1_silentpayments_public_data *public_data +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + +/** Parse a 33-byte sequence into a silent_payments_public_data object. + * + * Returns: 1 if the data was able to be parsed. + * 0 if the sequence is invalid (e.g. does not represent a valid public key). + * + * Args: ctx: pointer to a context object. + * Out: public_data: pointer to a silentpayments_public_data object. If 1 is returned, it is set to a + * parsed version of input33. + * In: input33: pointer to a serialized silentpayments_public_data. + */ + +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_silentpayments_recipient_public_data_parse( + const secp256k1_context *ctx, + secp256k1_silentpayments_public_data *public_data, + const unsigned char *input33 +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3); + +/** Scan for Silent Payment transaction outputs. + * + * Given a input public sum, an input_hash, a recipient's spend public key B_spend, and the relevant transaction + * outputs, scan for outputs belong to the recipient and return the tweak(s) needed for spending + * the output(s). An optional label_lookup callback function and label_context can be passed if the + * recipient uses labels. This allows for checking if a label exists in the recipients label cache + * and retrieving the label tweak during scanning. + * + * Returns: 1 if output scanning was successful. 0 if an error occured. + * Args: ctx: pointer to a context object + * Out: found_outputs: pointer to an array of pointers to found output objects. The found outputs + * array MUST be initialized to be the same length as the tx_outputs array + * n_found_outputs: pointer to an integer indicating the final size of the found outputs array. + * This number represents the number of outputs found while scanning (0 if + * none are found) + * In: tx_outputs: pointer to the tx's x-only public key outputs + * n_tx_outputs: the number of tx_outputs being scanned + * recipient_scan_key: pointer to the recipient's scan key + * public_data: pointer to the input public key sum (optionaly, with the `input_hash` + * multiplied in, see `_recipient_public_data_create`). + * recipient_spend_pubkey: pointer to the recipient's spend pubkey + * label_lookup: pointer to a callback function for looking up a label value. This fucntion + * takes a label pubkey as an argument and returns a pointer to the label tweak + * if the label exists, otherwise returns a nullptr (NULL if labels are not used) + * label_context: pointer to a label context object (NULL if labels are not used) + */ + +typedef const unsigned char* (*secp256k1_silentpayments_label_lookup)(const secp256k1_pubkey*, const void*); +typedef struct { + secp256k1_xonly_pubkey output; + unsigned char tweak[32]; + int found_with_label; + secp256k1_pubkey label; +} secp256k1_silentpayments_found_output; + +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_silentpayments_recipient_scan_outputs( + const secp256k1_context *ctx, + secp256k1_silentpayments_found_output **found_outputs, + size_t *n_found_outputs, + const secp256k1_xonly_pubkey * const *tx_outputs, + size_t n_tx_outputs, + const unsigned char *recipient_scan_key, + const secp256k1_silentpayments_public_data *public_data, + const secp256k1_pubkey *recipient_spend_pubkey, + const secp256k1_silentpayments_label_lookup label_lookup, + const void *label_context +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4) + SECP256K1_ARG_NONNULL(6) SECP256K1_ARG_NONNULL(7) SECP256K1_ARG_NONNULL(8); + +/** Create Silent Payment shared secret. + * + * Given the public input data (A_tweaked = input_hash * A_sum), calculate the shared secret using ECDH: + * + * shared_secret = b_scan * A_tweaked [Recipient, Light client scenario] + * + * The resulting shared secret is needed as input for creating silent payments + * outputs belonging to the same recipient scan public key. + * + * Returns: 1 if shared secret creation was successful. 0 if an error occured. + * Args: ctx: pointer to a context object + * Out: shared_secret33: pointer to the resulting 33-byte shared secret + * In: recipient_scan_key: pointer to the recipient's scan key + * public_data: pointer to the input public key sum, tweaked with the input_hash + * (see `_recipient_public_data_create`) + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_silentpayments_recipient_create_shared_secret( + const secp256k1_context *ctx, + unsigned char *shared_secret33, + const unsigned char *recipient_scan_key, + const secp256k1_silentpayments_public_data *public_data +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4); + +/** Create Silent Payment output public key. + * + * Given a shared_secret, a public key B_spend, and an output counter k, + * calculate the corresponding output public key: + * + * P_output_xonly = B_spend + hash(shared_secret || ser_32(k)) * G + * + * This function is used by the recipient when scanning for outputs without access to the + * transaction outputs (e.g. using BIP158 block filters). + * When scanning with this function, it is the scanners responsibility to determine if the generated + * output exists in a block before proceeding to the next value of `k`. + * + * Returns: 1 if output creation was successful. 0 if an error occured. + * Args: ctx: pointer to a context object + * Out: P_output_xonly: pointer to the resulting output x-only pubkey + * In: shared_secret33: shared secret, derived from either sender's + * or recipient's perspective with routines from above + * recipient_spend_pubkey: pointer to the recipient's spend pubkey (labelled or unlabelled) + * k: output counter (initially set to 0, must be incremented for each + * additional output created or after each output found when scanning) + */ +SECP256K1_API SECP256K1_WARN_UNUSED_RESULT int secp256k1_silentpayments_recipient_create_output_pubkey( + const secp256k1_context *ctx, + secp256k1_xonly_pubkey *P_output_xonly, + const unsigned char *shared_secret33, + const secp256k1_pubkey *recipient_spend_pubkey, + unsigned int k +) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4); + +#ifdef __cplusplus +} +#endif + +#endif /* SECP256K1_SILENTPAYMENTS_H */ diff --git a/src/secp256k1/src/bench.c b/src/secp256k1/src/bench.c index 1127df67ae0ee..db11e18f76175 100644 --- a/src/secp256k1/src/bench.c +++ b/src/secp256k1/src/bench.c @@ -63,6 +63,10 @@ static void help(int default_iters) { printf(" ellswift_ecdh : ECDH on ElligatorSwift keys\n"); #endif +#ifdef ENABLE_MODULE_SILENTPAYMENTS + printf(" silentpayments : Silent payments recipient scanning\n"); +#endif + printf("\n"); } @@ -165,6 +169,10 @@ static void bench_keygen_run(void *arg, int iters) { # include "modules/ellswift/bench_impl.h" #endif +#ifdef ENABLE_MODULE_SILENTPAYMENTS +# include "modules/silentpayments/bench_impl.h" +#endif + int main(int argc, char** argv) { int i; secp256k1_pubkey pubkey; @@ -179,7 +187,7 @@ int main(int argc, char** argv) { char* valid_args[] = {"ecdsa", "verify", "ecdsa_verify", "sign", "ecdsa_sign", "ecdh", "recover", "ecdsa_recover", "schnorrsig", "schnorrsig_verify", "schnorrsig_sign", "ec", "keygen", "ec_keygen", "ellswift", "encode", "ellswift_encode", "decode", - "ellswift_decode", "ellswift_keygen", "ellswift_ecdh"}; + "ellswift_decode", "ellswift_keygen", "ellswift_ecdh", "silentpayments"}; size_t valid_args_size = sizeof(valid_args)/sizeof(valid_args[0]); int invalid_args = have_invalid_args(argc, argv, valid_args, valid_args_size); @@ -231,6 +239,14 @@ int main(int argc, char** argv) { } #endif +#ifndef ENABLE_MODULE_SILENTPAYMENTS + if (have_flag(argc, argv, "silentpayments")) { + fprintf(stderr, "./bench: silentpayments module not enabled.\n"); + fprintf(stderr, "Use ./configure --enable-module-silentpayments.\n\n"); + return 1; + } +#endif + /* ECDSA benchmark */ data.ctx = secp256k1_context_create(SECP256K1_CONTEXT_NONE); @@ -275,5 +291,11 @@ int main(int argc, char** argv) { run_ellswift_bench(iters, argc, argv); #endif +#ifdef ENABLE_MODULE_SILENTPAYMENTS + /* SilentPayments benchmarks */ + run_silentpayments_bench(iters, argc, argv); +#endif + + return 0; } diff --git a/src/secp256k1/src/modules/silentpayments/Makefile.am.include b/src/secp256k1/src/modules/silentpayments/Makefile.am.include new file mode 100644 index 0000000000000..d0c51dc337311 --- /dev/null +++ b/src/secp256k1/src/modules/silentpayments/Makefile.am.include @@ -0,0 +1,5 @@ +include_HEADERS += include/secp256k1_silentpayments.h +noinst_HEADERS += src/modules/silentpayments/main_impl.h +noinst_HEADERS += src/modules/silentpayments/bench_impl.h +noinst_HEADERS += src/modules/silentpayments/tests_impl.h +noinst_HEADERS += src/modules/silentpayments/vectors.h diff --git a/src/secp256k1/src/modules/silentpayments/bench_impl.h b/src/secp256k1/src/modules/silentpayments/bench_impl.h new file mode 100644 index 0000000000000..818cce140b812 --- /dev/null +++ b/src/secp256k1/src/modules/silentpayments/bench_impl.h @@ -0,0 +1,106 @@ +/*********************************************************************** + * Copyright (c) 2024 josibake * + * Distributed under the MIT software license, see the accompanying * + * file COPYING or https://www.opensource.org/licenses/mit-license.php.* + ***********************************************************************/ + +#ifndef SECP256K1_MODULE_SILENTPAYMENTS_BENCH_H +#define SECP256K1_MODULE_SILENTPAYMENTS_BENCH_H + +#include "../../../include/secp256k1_silentpayments.h" + +typedef struct { + secp256k1_context *ctx; + secp256k1_pubkey spend_pubkey; + unsigned char scan_key[32]; + secp256k1_silentpayments_public_data public_data; + secp256k1_xonly_pubkey tx_outputs[4]; + secp256k1_silentpayments_found_output found_outputs[4]; + unsigned char scalar[32]; +} bench_silentpayments_data; + +/* we need a non-null pointer for the cache */ +static int noop; +void* label_cache = &noop; +const unsigned char* label_lookup(const secp256k1_pubkey* key, const void* cache_ptr) { + (void)key; + (void)cache_ptr; + return NULL; +} + +static void bench_silentpayments_scan_setup(void* arg) { + int i; + bench_silentpayments_data *data = (bench_silentpayments_data*)arg; + const unsigned char tx_outputs[4][32] = { + {0x84,0x17,0x92,0xc3,0x3c,0x9d,0xc6,0x19,0x3e,0x76,0x74,0x41,0x34,0x12,0x5d,0x40,0xad,0xd8,0xf2,0xf4,0xa9,0x64,0x75,0xf2,0x8b,0xa1,0x50,0xbe,0x03,0x2d,0x64,0xe8}, + {0x2e,0x84,0x7b,0xb0,0x1d,0x1b,0x49,0x1d,0xa5,0x12,0xdd,0xd7,0x60,0xb8,0x50,0x96,0x17,0xee,0x38,0x05,0x70,0x03,0xd6,0x11,0x5d,0x00,0xba,0x56,0x24,0x51,0x32,0x3a}, + {0xf2,0x07,0x16,0x2b,0x1a,0x7a,0xbc,0x51,0xc4,0x20,0x17,0xbe,0xf0,0x55,0xe9,0xec,0x1e,0xfc,0x3d,0x35,0x67,0xcb,0x72,0x03,0x57,0xe2,0xb8,0x43,0x25,0xdb,0x33,0xac}, + {0xe9,0x76,0xa5,0x8f,0xbd,0x38,0xae,0xb4,0xe6,0x09,0x3d,0x4d,0xf0,0x2e,0x9c,0x1d,0xe0,0xc4,0x51,0x3a,0xe0,0xc5,0x88,0xce,0xf6,0x8c,0xda,0x5b,0x2f,0x88,0x34,0xca} + }; + const unsigned char spend_pubkey[33] = { + 0x02,0xee,0x97,0xdf,0x83,0xb2,0x54,0x6a, + 0xf5,0xa7,0xd0,0x62,0x15,0xd9,0x8b,0xcb, + 0x63,0x7f,0xe0,0x5d,0xd0,0xfa,0x37,0x3b, + 0xd8,0x20,0xe6,0x64,0xd3,0x72,0xde,0x9a,0x01 + }; + const unsigned char scan_key[32] = { + 0xa8,0x90,0x54,0xc9,0x5b,0xe3,0xc3,0x01, + 0x56,0x65,0x74,0xf2,0xaa,0x93,0xad,0xe0, + 0x51,0x85,0x09,0x03,0xa6,0x9c,0xbd,0xd1, + 0xd4,0x7e,0xae,0x26,0x3d,0x7b,0xc0,0x31 + }; + secp256k1_keypair input_keypair; + secp256k1_pubkey input_pubkey; + unsigned char input_pubkey33[33]; + size_t pubkeylen = 33; + + for (i = 0; i < 32; i++) { + data->scalar[i] = i + 1; + } + for (i = 0; i < 4; i++) { + CHECK(secp256k1_xonly_pubkey_parse(data->ctx, &data->tx_outputs[i], tx_outputs[i])); + } + CHECK(secp256k1_keypair_create(data->ctx, &input_keypair, data->scalar)); + CHECK(secp256k1_keypair_pub(data->ctx, &input_pubkey, &input_keypair)); + CHECK(secp256k1_ec_pubkey_serialize(data->ctx, input_pubkey33, &pubkeylen, &input_pubkey, SECP256K1_EC_COMPRESSED)); + CHECK(secp256k1_silentpayments_recipient_public_data_parse(data->ctx, &data->public_data, input_pubkey33)); + CHECK(secp256k1_ec_pubkey_parse(data->ctx, &data->spend_pubkey, spend_pubkey, pubkeylen)); + memcpy(data->scan_key, scan_key, 32); +} + +static void bench_silentpayments_scan(void* arg, int iters) { + int i; + size_t n_found = 0; + secp256k1_silentpayments_found_output *found_output_ptrs[4]; + const secp256k1_xonly_pubkey *tx_output_ptrs[4]; + bench_silentpayments_data *data = (bench_silentpayments_data*)arg; + + for (i = 0; i < 4; i++) { + found_output_ptrs[i] = &data->found_outputs[i]; + tx_output_ptrs[i] = &data->tx_outputs[i]; + } + for (i = 0; i < iters; i++) { + CHECK(secp256k1_silentpayments_recipient_scan_outputs(data->ctx, + found_output_ptrs, &n_found, + tx_output_ptrs, 4, + data->scan_key, + &data->public_data, + &data->spend_pubkey, + label_lookup, label_cache) + ); + } +} + +static void run_silentpayments_bench(int iters, int argc, char** argv) { + bench_silentpayments_data data; + int d = argc == 1; + + /* create a context with no capabilities */ + data.ctx = secp256k1_context_create(SECP256K1_FLAGS_TYPE_CONTEXT); + + if (d || have_flag(argc, argv, "silentpayments")) run_benchmark("silentpayments", bench_silentpayments_scan, bench_silentpayments_scan_setup, NULL, &data, 10, iters); + + secp256k1_context_destroy(data.ctx); +} + +#endif /* SECP256K1_MODULE_SILENTPAYMENTS_BENCH_H */ diff --git a/src/secp256k1/src/modules/silentpayments/main_impl.h b/src/secp256k1/src/modules/silentpayments/main_impl.h new file mode 100644 index 0000000000000..e2d2abfceb1a8 --- /dev/null +++ b/src/secp256k1/src/modules/silentpayments/main_impl.h @@ -0,0 +1,595 @@ +/*********************************************************************** + * Distributed under the MIT software license, see the accompanying * + * file COPYING or https://www.opensource.org/licenses/mit-license.php.* + ***********************************************************************/ + +#ifndef SECP256K1_MODULE_SILENTPAYMENTS_MAIN_H +#define SECP256K1_MODULE_SILENTPAYMENTS_MAIN_H + +#include "../../../include/secp256k1.h" +#include "../../../include/secp256k1_extrakeys.h" +#include "../../../include/secp256k1_silentpayments.h" + +/** Sort an array of silent payment recipients. This is used to group recipients by scan pubkey to + * ensure the correct values of k are used when creating multiple outputs for a recipient. */ +static int secp256k1_silentpayments_recipient_sort_cmp(const void* pk1, const void* pk2, void *ctx) { + return secp256k1_ec_pubkey_cmp((secp256k1_context *)ctx, + &(*(const secp256k1_silentpayments_recipient **)pk1)->scan_pubkey, + &(*(const secp256k1_silentpayments_recipient **)pk2)->scan_pubkey + ); +} + +static int secp256k1_silentpayments_recipient_sort(const secp256k1_context* ctx, const secp256k1_silentpayments_recipient **recipients, size_t n_recipients) { + + /* Suppress wrong warning (fixed in MSVC 19.33) */ + #if defined(_MSC_VER) && (_MSC_VER < 1933) + #pragma warning(push) + #pragma warning(disable: 4090) + #endif + + secp256k1_hsort(recipients, n_recipients, sizeof(*recipients), secp256k1_silentpayments_recipient_sort_cmp, (void *)ctx); + + #if defined(_MSC_VER) && (_MSC_VER < 1933) + #pragma warning(pop) + #endif + + return 1; +} + +/** Set hash state to the BIP340 tagged hash midstate for "BIP0352/Inputs". */ +static void secp256k1_silentpayments_sha256_init_inputs(secp256k1_sha256* hash) { + secp256k1_sha256_initialize(hash); + hash->s[0] = 0xd4143ffcul; + hash->s[1] = 0x012ea4b5ul; + hash->s[2] = 0x36e21c8ful; + hash->s[3] = 0xf7ec7b54ul; + hash->s[4] = 0x4dd4e2acul; + hash->s[5] = 0x9bcaa0a4ul; + hash->s[6] = 0xe244899bul; + hash->s[7] = 0xcd06903eul; + + hash->bytes = 64; +} + +static void secp256k1_silentpayments_calculate_input_hash(unsigned char *input_hash, const unsigned char *outpoint_smallest36, secp256k1_ge *pubkey_sum) { + secp256k1_sha256 hash; + unsigned char pubkey_sum_ser[33]; + size_t ser_size; + int ser_ret; + + secp256k1_silentpayments_sha256_init_inputs(&hash); + secp256k1_sha256_write(&hash, outpoint_smallest36, 36); + ser_ret = secp256k1_eckey_pubkey_serialize(pubkey_sum, pubkey_sum_ser, &ser_size, 1); + VERIFY_CHECK(ser_ret && ser_size == sizeof(pubkey_sum_ser)); + (void)ser_ret; + secp256k1_sha256_write(&hash, pubkey_sum_ser, sizeof(pubkey_sum_ser)); + secp256k1_sha256_finalize(&hash, input_hash); +} + +static int secp256k1_silentpayments_create_shared_secret(const secp256k1_context *ctx, unsigned char *shared_secret33, const secp256k1_scalar *secret_component, const secp256k1_pubkey *public_component) { + secp256k1_gej ss_j; + secp256k1_ge ss, pk; + size_t len = 33; + int ret = 1; + memset(shared_secret33, 0, 33); + secp256k1_pubkey_load(ctx, &pk, public_component); + + /* Compute shared_secret = tweaked_secret_component * Public_component */ + secp256k1_ecmult_const(&ss_j, &pk, secret_component); + secp256k1_ge_set_gej(&ss, &ss_j); + ret &= secp256k1_eckey_pubkey_serialize(&ss, shared_secret33, &len, 1); + return ret; +} + +/** Set hash state to the BIP340 tagged hash midstate for "BIP0352/SharedSecret". */ +static void secp256k1_silentpayments_sha256_init_sharedsecret(secp256k1_sha256* hash) { + secp256k1_sha256_initialize(hash); + hash->s[0] = 0x88831537ul; + hash->s[1] = 0x5127079bul; + hash->s[2] = 0x69c2137bul; + hash->s[3] = 0xab0303e6ul; + hash->s[4] = 0x98fa21faul; + hash->s[5] = 0x4a888523ul; + hash->s[6] = 0xbd99daabul; + hash->s[7] = 0xf25e5e0aul; + + hash->bytes = 64; +} + +static void secp256k1_silentpayments_create_t_k(secp256k1_scalar *t_k_scalar, const unsigned char *shared_secret33, unsigned int k) { + secp256k1_sha256 hash; + unsigned char hash_ser[32]; + unsigned char k_serialized[4]; + + /* Compute t_k = hash(shared_secret || ser_32(k)) [sha256 with tag "BIP0352/SharedSecret"] */ + secp256k1_silentpayments_sha256_init_sharedsecret(&hash); + secp256k1_sha256_write(&hash, shared_secret33, 33); + secp256k1_write_be32(k_serialized, k); + secp256k1_sha256_write(&hash, k_serialized, sizeof(k_serialized)); + secp256k1_sha256_finalize(&hash, hash_ser); + secp256k1_scalar_set_b32(t_k_scalar, hash_ser, NULL); +} + +static int secp256k1_silentpayments_create_output_pubkey(const secp256k1_context *ctx, secp256k1_xonly_pubkey *P_output_xonly, const unsigned char *shared_secret33, const secp256k1_pubkey *recipient_spend_pubkey, unsigned int k) { + secp256k1_ge P_output_ge; + secp256k1_scalar t_k_scalar; + int ret; + + /* Calculate and return P_output_xonly = B_spend + t_k * G */ + secp256k1_silentpayments_create_t_k(&t_k_scalar, shared_secret33, k); + secp256k1_pubkey_load(ctx, &P_output_ge, recipient_spend_pubkey); + + /* This will fail if B_spend + t_k*G is the point at infinity */ + ret = secp256k1_eckey_pubkey_tweak_add(&P_output_ge, &t_k_scalar); + secp256k1_xonly_pubkey_save(P_output_xonly, &P_output_ge); + + /* While not technically "secret" data, explicitly clear t_k since leaking this would allow an attacker + * to identify the resulting transaction as a silent payments transaction and potentially link the transaction + * back to the silent payment address + */ + secp256k1_scalar_clear(&t_k_scalar); + return ret; +} + +int secp256k1_silentpayments_sender_create_outputs( + const secp256k1_context *ctx, + secp256k1_xonly_pubkey **generated_outputs, + const secp256k1_silentpayments_recipient **recipients, + size_t n_recipients, + const unsigned char *outpoint_smallest36, + const secp256k1_keypair * const *taproot_seckeys, + size_t n_taproot_seckeys, + const unsigned char * const *plain_seckeys, + size_t n_plain_seckeys +) { + size_t i, k; + secp256k1_scalar a_sum_scalar, addend, input_hash_scalar; + secp256k1_ge A_sum_ge; + secp256k1_gej A_sum_gej; + unsigned char input_hash[32]; + unsigned char shared_secret[33]; + secp256k1_silentpayments_recipient last_recipient; + int overflow = 0; + int ret = 1; + + /* Sanity check inputs. */ + VERIFY_CHECK(ctx != NULL); + ARG_CHECK(secp256k1_ecmult_gen_context_is_built(&ctx->ecmult_gen_ctx)); + ARG_CHECK(generated_outputs != NULL); + ARG_CHECK(recipients != NULL); + ARG_CHECK(n_recipients > 0); + ARG_CHECK((plain_seckeys != NULL) || (taproot_seckeys != NULL)); + if (taproot_seckeys != NULL) { + ARG_CHECK(n_taproot_seckeys > 0); + } else { + ARG_CHECK(n_taproot_seckeys == 0); + } + if (plain_seckeys != NULL) { + ARG_CHECK(n_plain_seckeys > 0); + } else { + ARG_CHECK(n_plain_seckeys == 0); + } + ARG_CHECK(outpoint_smallest36 != NULL); + /* ensure the index field is set correctly */ + for (i = 0; i < n_recipients; i++) { + ARG_CHECK(recipients[i]->index == i); + } + + /* Compute input private keys sum: a_sum = a_1 + a_2 + ... + a_n */ + a_sum_scalar = secp256k1_scalar_zero; + for (i = 0; i < n_plain_seckeys; i++) { + /* TODO: in other places where _set_b32_seckey is called, its normally followed by a _cmov call + * Do we need that here and if so, is it better to call it after the loop is finished? + */ + ret &= secp256k1_scalar_set_b32_seckey(&addend, plain_seckeys[i]); + secp256k1_scalar_add(&a_sum_scalar, &a_sum_scalar, &addend); + } + /* private keys used for taproot outputs have to be negated if they resulted in an odd point */ + for (i = 0; i < n_taproot_seckeys; i++) { + secp256k1_ge addend_point; + /* TODO: why don't we need _cmov here after calling keypair_load? Because the ret is declassified? */ + ret &= secp256k1_keypair_load(ctx, &addend, &addend_point, taproot_seckeys[i]); + if (secp256k1_fe_is_odd(&addend_point.y)) { + secp256k1_scalar_negate(&addend, &addend); + } + secp256k1_scalar_add(&a_sum_scalar, &a_sum_scalar, &addend); + } + /* If there are any failures in loading/summing up the secret keys, fail early */ + if (!ret || secp256k1_scalar_is_zero(&a_sum_scalar)) { + return 0; + } + /* Compute input_hash = hash(outpoint_L || (a_sum * G)) */ + secp256k1_ecmult_gen(&ctx->ecmult_gen_ctx, &A_sum_gej, &a_sum_scalar); + secp256k1_ge_set_gej(&A_sum_ge, &A_sum_gej); + + /* Calculate the input hash and tweak a_sum, i.e., a_sum_tweaked = a_sum * input_hash */ + secp256k1_silentpayments_calculate_input_hash(input_hash, outpoint_smallest36, &A_sum_ge); + secp256k1_scalar_set_b32(&input_hash_scalar, input_hash, &overflow); + ret &= !overflow; + /* TODO: any concerns here with multiplying a "secret" by a scalar here, i.e., input_hash * a_sum + * Mostly concerned about cases where a_sum is a single key and leaking information about a_sum + * since input_hash can be calculated by anyone + */ + secp256k1_scalar_mul(&a_sum_scalar, &a_sum_scalar, &input_hash_scalar); + secp256k1_silentpayments_recipient_sort(ctx, recipients, n_recipients); + last_recipient = *recipients[0]; + k = 0; + for (i = 0; i < n_recipients; i++) { + if ((secp256k1_ec_pubkey_cmp(ctx, &last_recipient.scan_pubkey, &recipients[i]->scan_pubkey) != 0) || (i == 0)) { + /* if we are on a different scan pubkey, its time to recreate the the shared secret and reset k to 0 */ + ret &= secp256k1_silentpayments_create_shared_secret(ctx, shared_secret, &a_sum_scalar, &recipients[i]->scan_pubkey); + k = 0; + } + ret &= secp256k1_silentpayments_create_output_pubkey(ctx, generated_outputs[recipients[i]->index], shared_secret, &recipients[i]->spend_pubkey, k); + k++; + last_recipient = *recipients[i]; + } + /* Explicitly clear variables containing secret data */ + secp256k1_scalar_clear(&addend); + secp256k1_scalar_clear(&a_sum_scalar); + + /* While technically not "secret data," explicitly clear the shared secret since leaking this + * could result in a third party being able to identify the transaction as a silent payments transaction + * and potentially link the transaction back to a silent payment address + */ + memset(&shared_secret, 0, sizeof(shared_secret)); + return ret; +} + +/** Set hash state to the BIP340 tagged hash midstate for "BIP0352/Label". */ +static void secp256k1_silentpayments_sha256_init_label(secp256k1_sha256* hash) { + secp256k1_sha256_initialize(hash); + hash->s[0] = 0x26b95d63ul; + hash->s[1] = 0x8bf1b740ul; + hash->s[2] = 0x10a5986ful; + hash->s[3] = 0x06a387a5ul; + hash->s[4] = 0x2d1c1c30ul; + hash->s[5] = 0xd035951aul; + hash->s[6] = 0x2d7f0f96ul; + hash->s[7] = 0x29e3e0dbul; + + hash->bytes = 64; +} + +int secp256k1_silentpayments_recipient_create_label_tweak(const secp256k1_context *ctx, secp256k1_pubkey *label, unsigned char *label_tweak32, const unsigned char *recipient_scan_key, unsigned int m) { + secp256k1_sha256 hash; + unsigned char m_serialized[4]; + + /* Sanity check inputs. */ + VERIFY_CHECK(ctx != NULL); + ARG_CHECK(label != NULL); + ARG_CHECK(label_tweak32 != NULL); + ARG_CHECK(recipient_scan_key != NULL); + + /* Compute label_tweak = hash(ser_256(b_scan) || ser_32(m)) [sha256 with tag "BIP0352/Label"] */ + secp256k1_silentpayments_sha256_init_label(&hash); + secp256k1_sha256_write(&hash, recipient_scan_key, 32); + secp256k1_write_be32(m_serialized, m); + secp256k1_sha256_write(&hash, m_serialized, sizeof(m_serialized)); + secp256k1_sha256_finalize(&hash, label_tweak32); + + /* Compute label = label_tweak * G */ + return secp256k1_ec_pubkey_create(ctx, label, label_tweak32); +} + +int secp256k1_silentpayments_recipient_create_labelled_spend_pubkey(const secp256k1_context *ctx, secp256k1_pubkey *labelled_spend_pubkey, const secp256k1_pubkey *recipient_spend_pubkey, const secp256k1_pubkey *label) { + secp256k1_ge B_m, label_addend; + secp256k1_gej result_gej; + secp256k1_ge result_ge; + + /* Sanity check inputs. */ + VERIFY_CHECK(ctx != NULL); + ARG_CHECK(labelled_spend_pubkey != NULL); + ARG_CHECK(recipient_spend_pubkey != NULL); + ARG_CHECK(label != NULL); + + /* Calculate B_m = B_spend + label */ + secp256k1_pubkey_load(ctx, &B_m, recipient_spend_pubkey); + secp256k1_pubkey_load(ctx, &label_addend, label); + secp256k1_gej_set_ge(&result_gej, &B_m); + secp256k1_gej_add_ge_var(&result_gej, &result_gej, &label_addend, NULL); + + /* Serialize B_m */ + secp256k1_ge_set_gej(&result_ge, &result_gej); + secp256k1_pubkey_save(labelled_spend_pubkey, &result_ge); + + return 1; +} + +int secp256k1_silentpayments_recipient_public_data_create( + const secp256k1_context *ctx, + secp256k1_silentpayments_public_data *public_data, + const unsigned char *outpoint_smallest36, + const secp256k1_xonly_pubkey * const *xonly_pubkeys, + size_t n_xonly_pubkeys, + const secp256k1_pubkey * const *plain_pubkeys, + size_t n_plain_pubkeys +) { + size_t i; + size_t pubkeylen = 65; + secp256k1_pubkey A_sum; + secp256k1_ge A_sum_ge, addend; + secp256k1_gej A_sum_gej; + unsigned char input_hash_local[32]; + int ret = 1; + + /* Sanity check inputs */ + VERIFY_CHECK(ctx != NULL); + ARG_CHECK(public_data != NULL); + ARG_CHECK(outpoint_smallest36 != NULL); + ARG_CHECK((plain_pubkeys != NULL) || (xonly_pubkeys != NULL)); + if (xonly_pubkeys != NULL) { + ARG_CHECK(n_xonly_pubkeys > 0); + } else { + ARG_CHECK(n_xonly_pubkeys == 0); + } + if (plain_pubkeys != NULL) { + ARG_CHECK(n_plain_pubkeys > 0); + } else { + ARG_CHECK(n_plain_pubkeys == 0); + } + memset(input_hash_local, 0, 32); + + /* Compute input public keys sum: A_sum = A_1 + A_2 + ... + A_n */ + secp256k1_gej_set_infinity(&A_sum_gej); + for (i = 0; i < n_plain_pubkeys; i++) { + ret &= secp256k1_pubkey_load(ctx, &addend, plain_pubkeys[i]); + secp256k1_gej_add_ge_var(&A_sum_gej, &A_sum_gej, &addend, NULL); + } + for (i = 0; i < n_xonly_pubkeys; i++) { + ret &= secp256k1_xonly_pubkey_load(ctx, &addend, xonly_pubkeys[i]); + secp256k1_gej_add_ge_var(&A_sum_gej, &A_sum_gej, &addend, NULL); + } + /* Since an attacker can maliciously craft transactions where the public keys sum to zero, fail early here + * to avoid making the caller do extra work, e.g., when building an index or scanning many malicious transactions + */ + if (secp256k1_gej_is_infinity(&A_sum_gej)) { + return 0; + } + /* Compute input_hash = hash(outpoint_L || A_sum) */ + secp256k1_ge_set_gej(&A_sum_ge, &A_sum_gej); + secp256k1_silentpayments_calculate_input_hash(input_hash_local, outpoint_smallest36, &A_sum_ge); + secp256k1_pubkey_save(&A_sum, &A_sum_ge); + /* serialize the public_data struct */ + public_data->data[0] = 0; + secp256k1_ec_pubkey_serialize(ctx, &public_data->data[1], &pubkeylen, &A_sum, SECP256K1_EC_UNCOMPRESSED); + memcpy(&public_data->data[1 + pubkeylen], input_hash_local, 32); + return ret; +} + +static int secp256k1_silentpayments_recipient_public_data_load_pubkey(const secp256k1_context *ctx, secp256k1_pubkey *pubkey, const secp256k1_silentpayments_public_data *public_data) { + size_t pubkeylen = 65; + return secp256k1_ec_pubkey_parse(ctx, pubkey, &public_data->data[1], pubkeylen); +} + +static void secp256k1_silentpayments_recipient_public_data_load_input_hash(unsigned char *input_hash, const secp256k1_silentpayments_public_data *public_data) { + size_t pubkeylen = 65; + memcpy(input_hash, &public_data->data[1 + pubkeylen], 32); +} + +int secp256k1_silentpayments_recipient_public_data_serialize(const secp256k1_context *ctx, unsigned char *output33, const secp256k1_silentpayments_public_data *public_data) { + secp256k1_pubkey pubkey; + unsigned char input_hash[32]; + size_t pubkeylen = 33; + int ret = 1; + + VERIFY_CHECK(ctx != NULL); + ARG_CHECK(output33 != NULL); + ARG_CHECK(public_data != NULL); + /* Only allow public_data to be serialized if it has the hash and the summed public key + * This helps protect against accidentally serialiazing just a the summed public key A + */ + ARG_CHECK(public_data->data[0] == 0); + ret &= secp256k1_silentpayments_recipient_public_data_load_pubkey(ctx, &pubkey, public_data); + secp256k1_silentpayments_recipient_public_data_load_input_hash(input_hash, public_data); + ret &= secp256k1_ec_pubkey_tweak_mul(ctx, &pubkey, input_hash); + secp256k1_ec_pubkey_serialize(ctx, output33, &pubkeylen, &pubkey, SECP256K1_EC_COMPRESSED); + return ret; +} + +int secp256k1_silentpayments_recipient_public_data_parse(const secp256k1_context *ctx, secp256k1_silentpayments_public_data *public_data, const unsigned char *input33) { + size_t inputlen = 33; + size_t pubkeylen = 65; + secp256k1_pubkey pubkey; + + VERIFY_CHECK(ctx != NULL); + ARG_CHECK(public_data != NULL); + ARG_CHECK(input33 != NULL); + /* Since an attacker can send us malicious data that looks like a serialized public key but is not, fail early */ + if (!secp256k1_ec_pubkey_parse(ctx, &pubkey, input33, inputlen)) { + return 0; + } + public_data->data[0] = 1; + secp256k1_ec_pubkey_serialize(ctx, &public_data->data[1], &pubkeylen, &pubkey, SECP256K1_EC_UNCOMPRESSED); + memset(&public_data->data[1 + pubkeylen], 0, 32); + return 1; +} + +int secp256k1_silentpayments_recipient_scan_outputs( + const secp256k1_context *ctx, + secp256k1_silentpayments_found_output **found_outputs, size_t *n_found_outputs, + const secp256k1_xonly_pubkey * const *tx_outputs, size_t n_tx_outputs, + const unsigned char *recipient_scan_key, + const secp256k1_silentpayments_public_data *public_data, + const secp256k1_pubkey *recipient_spend_pubkey, + const secp256k1_silentpayments_label_lookup label_lookup, + const void *label_context +) { + secp256k1_scalar t_k_scalar, rsk_scalar; + secp256k1_ge label_ge, recipient_spend_pubkey_ge; + secp256k1_pubkey A_sum; + secp256k1_xonly_pubkey P_output_xonly; + unsigned char shared_secret[33]; + const unsigned char *label_tweak = NULL; + size_t i, k, n_found, found_idx; + int found, combined; + int ret = 1; + + /* Sanity check inputs */ + VERIFY_CHECK(ctx != NULL); + ARG_CHECK(found_outputs != NULL); + ARG_CHECK(n_found_outputs != NULL); + ARG_CHECK(tx_outputs != NULL); + ARG_CHECK(n_tx_outputs > 0); + ARG_CHECK(recipient_scan_key != NULL); + ARG_CHECK(public_data != NULL); + ARG_CHECK(recipient_spend_pubkey != NULL); + if (label_lookup != NULL) { + ARG_CHECK(label_context != NULL); + } else { + ARG_CHECK(label_context == NULL); + } + /* TODO: do we need a _cmov call here to avoid leaking information about the scan key? + * Recall: a scan key isnt really "secret" data in that leaking the scan key will only leak privacy + * In this respect, a scan key is functionally equivalent to an xpub + */ + ret &= secp256k1_scalar_set_b32_seckey(&rsk_scalar, recipient_scan_key); + ret &= secp256k1_silentpayments_recipient_public_data_load_pubkey(ctx, &A_sum, public_data); + combined = (int)public_data->data[0]; + if (!combined) { + unsigned char input_hash[32]; + secp256k1_scalar input_hash_scalar; + int overflow = 0; + + secp256k1_silentpayments_recipient_public_data_load_input_hash(input_hash, public_data); + secp256k1_scalar_set_b32(&input_hash_scalar, input_hash, &overflow); + /* TODO: any concerns with leaking the scan key when multiplying by a publicly known scalar? */ + secp256k1_scalar_mul(&rsk_scalar, &rsk_scalar, &input_hash_scalar); + ret &= !overflow; + } + /* These functions will only fail if there is something malformed about the public keys or public_data, but it + * is very unlikely we would ever reach this point with malformed data since the caller would have encountered + * an error when constructing the public key objects and public data object. Given that, we prefer to accumulate + * the errors instead of trying to fail early to save the caller from doing extra work. + */ + secp256k1_pubkey_load(ctx, &recipient_spend_pubkey_ge, recipient_spend_pubkey); + ret &= secp256k1_silentpayments_create_shared_secret(ctx, shared_secret, &rsk_scalar, &A_sum); + + found_idx = 0; + n_found = 0; + k = 0; + while (1) { + secp256k1_ge P_output_ge = recipient_spend_pubkey_ge; + /* Calculate t_k = hash(shared_secret || ser_32(k)) */ + secp256k1_silentpayments_create_t_k(&t_k_scalar, shared_secret, k); + + /* Calculate P_output = B_spend + t_k * G + * This can fail if t_k overflows the curver order, but this is statistically improbable + */ + ret &= secp256k1_eckey_pubkey_tweak_add(&P_output_ge, &t_k_scalar); + found = 0; + secp256k1_xonly_pubkey_save(&P_output_xonly, &P_output_ge); + for (i = 0; i < n_tx_outputs; i++) { + if (secp256k1_xonly_pubkey_cmp(ctx, &P_output_xonly, tx_outputs[i]) == 0) { + label_tweak = NULL; + found = 1; + found_idx = i; + break; + } + + /* If not found, proceed to check for labels (if the labels cache is present) */ + if (label_lookup != NULL) { + secp256k1_pubkey label_pubkey; + secp256k1_ge P_output_negated_ge, tx_output_ge; + secp256k1_gej tx_output_gej, label_gej; + + secp256k1_xonly_pubkey_load(ctx, &tx_output_ge, tx_outputs[i]); + secp256k1_gej_set_ge(&tx_output_gej, &tx_output_ge); + secp256k1_ge_neg(&P_output_negated_ge, &P_output_ge); + /* Negate the generated output and calculate first scan label candidate: + * label1 = tx_output - P_output */ + secp256k1_gej_add_ge_var(&label_gej, &tx_output_gej, &P_output_negated_ge, NULL); + secp256k1_ge_set_gej(&label_ge, &label_gej); + secp256k1_pubkey_save(&label_pubkey, &label_ge); + label_tweak = label_lookup(&label_pubkey, label_context); + if (label_tweak != NULL) { + found = 1; + found_idx = i; + break; + } + + secp256k1_gej_neg(&label_gej, &tx_output_gej); + /* If not found, negate the tx_output and calculate second scan label candidate: + * label2 = -tx_output - P_output */ + secp256k1_gej_add_ge_var(&label_gej, &label_gej, &P_output_negated_ge, NULL); + secp256k1_ge_set_gej(&label_ge, &label_gej); + secp256k1_pubkey_save(&label_pubkey, &label_ge); + label_tweak = label_lookup(&label_pubkey, label_context); + if (label_tweak != NULL) { + found = 1; + found_idx = i; + break; + } + } + } + if (found) { + found_outputs[n_found]->output = *tx_outputs[found_idx]; + secp256k1_scalar_get_b32(found_outputs[n_found]->tweak, &t_k_scalar); + if (label_tweak != NULL) { + found_outputs[n_found]->found_with_label = 1; + /* This is extremely unlikely to fail in that it can only really fail if label_tweak + * is the negation of the shared secret tweak. But since both tweak and label_tweak are + * created by hashing data, practically speaking this would only happen if an attacker + * tricked us into using a particular label_tweak (deviating from the protocol). + */ + ret &= secp256k1_ec_seckey_tweak_add(ctx, found_outputs[n_found]->tweak, label_tweak); + secp256k1_pubkey_save(&found_outputs[n_found]->label, &label_ge); + } else { + found_outputs[n_found]->found_with_label = 0; + /* Set the label public key with an invalid public key value */ + memset(&found_outputs[n_found]->label, 0, sizeof(secp256k1_pubkey)); + } + /* Set everything for the next round of scanning */ + label_tweak = NULL; + n_found++; + k++; + } else { + break; + } + } + *n_found_outputs = n_found; + /* Explicitly clear secrets. Recall that the scan key is not quite "secret" in that leaking the scan key + * results in a loss of privacy, not a loss of funds + */ + secp256k1_scalar_clear(&rsk_scalar); + /* Explicitly clear the shared secret. While this isn't technically "secret data," any third party + * with access to the shared secret could potentially identify and link the transaction back to the + * recipient address + */ + secp256k1_scalar_clear(&t_k_scalar); + memset(&shared_secret, 0, sizeof(shared_secret)); + return ret; +} + +int secp256k1_silentpayments_recipient_create_shared_secret(const secp256k1_context *ctx, unsigned char *shared_secret33, const unsigned char *recipient_scan_key, const secp256k1_silentpayments_public_data *public_data) { + secp256k1_pubkey A_tweaked; + secp256k1_scalar rsk; + int ret = 1; + /* Sanity check inputs */ + ARG_CHECK(shared_secret33 != NULL); + ARG_CHECK(recipient_scan_key != NULL); + ARG_CHECK(public_data != NULL); + ARG_CHECK(public_data->data[0] == 1); + /* TODO: do we need a _cmov operation here to avoid leaking information about the scan key? + * Recall: a scan key is not really "secret" data, its functionally the same as an xpub + */ + secp256k1_scalar_set_b32_seckey(&rsk, recipient_scan_key); + ret &= secp256k1_silentpayments_recipient_public_data_load_pubkey(ctx, &A_tweaked, public_data); + ret &= secp256k1_silentpayments_create_shared_secret(ctx, shared_secret33, &rsk, &A_tweaked); + + /* Explicitly clear secrets */ + secp256k1_scalar_clear(&rsk); + return ret; +} + +int secp256k1_silentpayments_recipient_create_output_pubkey(const secp256k1_context *ctx, secp256k1_xonly_pubkey *P_output_xonly, const unsigned char *shared_secret33, const secp256k1_pubkey *recipient_spend_pubkey, unsigned int k) +{ + VERIFY_CHECK(ctx != NULL); + ARG_CHECK(P_output_xonly != NULL); + ARG_CHECK(shared_secret33 != NULL); + ARG_CHECK(recipient_spend_pubkey != NULL); + return secp256k1_silentpayments_create_output_pubkey(ctx, P_output_xonly, shared_secret33, recipient_spend_pubkey, k); +} + + +#endif diff --git a/src/secp256k1/src/modules/silentpayments/tests_impl.h b/src/secp256k1/src/modules/silentpayments/tests_impl.h new file mode 100644 index 0000000000000..38390cfc28b2d --- /dev/null +++ b/src/secp256k1/src/modules/silentpayments/tests_impl.h @@ -0,0 +1,591 @@ +/*********************************************************************** + * Distributed under the MIT software license, see the accompanying * + * file COPYING or https://www.opensource.org/licenses/mit-license.php.* + ***********************************************************************/ + +#ifndef SECP256K1_MODULE_SILENTPAYMENTS_TESTS_H +#define SECP256K1_MODULE_SILENTPAYMENTS_TESTS_H + +#include "../../../include/secp256k1_silentpayments.h" +#include "../../../src/modules/silentpayments/vectors.h" +#include "include/secp256k1.h" + +/** Constants + * + * Addresses: scan and spend public keys for Bob and Carol + * Seckey: secret key for Alice + * Outputs: generated outputs from Alice's secret key and Bob/Carol's + * scan public keys + * orderc: a scalar which overflows the secp256k1 group order + * + * Constants for smallest outpoint, msg, and auxiliary data are also provided + * for convenience. These constants (with the exception of msg and aux) are used + * for testing behavior not covered by the BIP352 test vectors, e.g., API argument parsing. + * + * The values themselves are not important. + */ +static unsigned char ORDERC[32] = { + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe, + 0xba, 0xae, 0xdc, 0xe6, 0xaf, 0x48, 0xa0, 0x3b, + 0xbf, 0xd2, 0x5e, 0x8c, 0xd0, 0x36, 0x41, 0x41 +}; +static unsigned char BOB_ADDRESS[2][33] = { + { + 0x02,0x15,0x40,0xae,0xa8,0x97,0x54,0x7a, + 0xd4,0x39,0xb4,0xe0,0xf6,0x09,0xe5,0xf0, + 0xfa,0x63,0xde,0x89,0xab,0x11,0xed,0xe3, + 0x1e,0x8c,0xde,0x4b,0xe2,0x19,0x42,0x5f,0x23 + }, + { + 0x02,0x3e,0xff,0xf8,0x18,0x51,0x65,0xea, + 0x63,0xa9,0x92,0xb3,0x9f,0x31,0xd8,0xfd, + 0x8e,0x0e,0x64,0xae,0xf9,0xd3,0x88,0x07, + 0x34,0x97,0x37,0x14,0xa5,0x3d,0x83,0x11,0x8d + } +}; +static unsigned char CAROL_ADDRESS[2][33] = { + { + 0x03,0xbb,0xc6,0x3f,0x12,0x74,0x5d,0x3b, + 0x9e,0x9d,0x24,0xc6,0xcd,0x7a,0x1e,0xfe, + 0xba,0xd0,0xa7,0xf4,0x69,0x23,0x2f,0xbe, + 0xcf,0x31,0xfb,0xa7,0xb4,0xf7,0xdd,0xed,0xa8 + }, + { + 0x03,0x81,0xeb,0x9a,0x9a,0x9e,0xc7,0x39, + 0xd5,0x27,0xc1,0x63,0x1b,0x31,0xb4,0x21, + 0x56,0x6f,0x5c,0x2a,0x47,0xb4,0xab,0x5b, + 0x1f,0x6a,0x68,0x6d,0xfb,0x68,0xea,0xb7,0x16 + } +}; +static unsigned char BOB_OUTPUT[32] = { + 0x46,0x0d,0x68,0x08,0x65,0x64,0x45,0xee, + 0x4d,0x4e,0xc0,0x8e,0xba,0x8a,0x66,0xea, + 0x66,0x8e,0x4e,0x12,0x98,0x9a,0x0e,0x60, + 0x4b,0x5c,0x36,0x0e,0x43,0xf5,0x5a,0xfa +}; +static unsigned char CAROL_OUTPUT_ONE[32] = { + 0xb7,0xf3,0xc6,0x79,0x30,0x4a,0xef,0x8c, + 0xc0,0xc7,0x61,0xf1,0x00,0x99,0xdd,0x7b, + 0x20,0x65,0x20,0xd7,0x11,0x6f,0xb7,0x91, + 0xee,0x74,0x54,0xa2,0xfc,0x22,0x79,0xf4 +}; +static unsigned char CAROL_OUTPUT_TWO[32] = { + 0x4b,0x81,0x34,0x5d,0x53,0x89,0xba,0xa3, + 0xd8,0x93,0xe2,0xfb,0xe7,0x08,0xdd,0x6d, + 0x82,0xdc,0xd8,0x49,0xab,0x03,0xc1,0xdb, + 0x68,0xbe,0xc7,0xe9,0x2a,0x45,0xfa,0xc5 +}; +static unsigned char SMALLEST_OUTPOINT[36] = { + 0x16,0x9e,0x1e,0x83,0xe9,0x30,0x85,0x33,0x91, + 0xbc,0x6f,0x35,0xf6,0x05,0xc6,0x75,0x4c,0xfe, + 0xad,0x57,0xcf,0x83,0x87,0x63,0x9d,0x3b,0x40, + 0x96,0xc5,0x4f,0x18,0xf4,0x00,0x00,0x00,0x00 +}; +static unsigned char ALICE_SECKEY[32] = { + 0xea,0xdc,0x78,0x16,0x5f,0xf1,0xf8,0xea, + 0x94,0xad,0x7c,0xfd,0xc5,0x49,0x90,0x73, + 0x8a,0x4c,0x53,0xf6,0xe0,0x50,0x7b,0x42, + 0x15,0x42,0x01,0xb8,0xe5,0xdf,0xf3,0xb1 +}; +/* sha256("message") */ +static unsigned char MSG32[32] = { + 0xab,0x53,0x0a,0x13,0xe4,0x59,0x14,0x98, + 0x2b,0x79,0xf9,0xb7,0xe3,0xfb,0xa9,0x94, + 0xcf,0xd1,0xf3,0xfb,0x22,0xf7,0x1c,0xea, + 0x1a,0xfb,0xf0,0x2b,0x46,0x0c,0x6d,0x1d +}; +/* sha256("random auxiliary data") */ +static unsigned char AUX32[32] = { + 0x0b,0x3f,0xdd,0xfd,0x67,0xbf,0x76,0xae, + 0x76,0x39,0xee,0x73,0x5b,0x70,0xff,0x15, + 0x83,0xfd,0x92,0x48,0xc0,0x57,0xd2,0x86, + 0x07,0xa2,0x15,0xf4,0x0b,0x0a,0x3e,0xcc +}; + +struct label_cache_entry { + secp256k1_pubkey label; + unsigned char label_tweak[32]; +}; +struct labels_cache { + const secp256k1_context *ctx; + size_t entries_used; + struct label_cache_entry entries[10]; +}; +struct labels_cache labels_cache; +const unsigned char* label_lookup(const secp256k1_pubkey* key, const void* cache_ptr) { + const struct labels_cache* cache = (const struct labels_cache*)cache_ptr; + size_t i; + for (i = 0; i < cache->entries_used; i++) { + if (secp256k1_ec_pubkey_cmp(cache->ctx, &cache->entries[i].label, key) == 0) { + return cache->entries[i].label_tweak; + } + } + return NULL; +} + +static void test_recipient_sort_helper(unsigned char (*sp_addresses[3])[2][33], unsigned char (*sp_outputs[3])[32]) { + unsigned char const *seckey_ptrs[1]; + secp256k1_silentpayments_recipient recipients[3]; + const secp256k1_silentpayments_recipient *recipient_ptrs[3]; + secp256k1_xonly_pubkey generated_outputs[3]; + secp256k1_xonly_pubkey *generated_output_ptrs[3]; + unsigned char xonly_ser[32]; + size_t i; + int ret; + + seckey_ptrs[0] = ALICE_SECKEY; + for (i = 0; i < 3; i++) { + CHECK(secp256k1_ec_pubkey_parse(CTX, &recipients[i].scan_pubkey, (*sp_addresses[i])[0], 33)); + CHECK(secp256k1_ec_pubkey_parse(CTX, &recipients[i].spend_pubkey,(*sp_addresses[i])[1], 33)); + recipients[i].index = i; + recipient_ptrs[i] = &recipients[i]; + generated_output_ptrs[i] = &generated_outputs[i]; + } + ret = secp256k1_silentpayments_sender_create_outputs(CTX, + generated_output_ptrs, + recipient_ptrs, 3, + SMALLEST_OUTPOINT, + NULL, 0, + seckey_ptrs, 1 + ); + CHECK(ret); + for (i = 0; i < 3; i++) { + secp256k1_xonly_pubkey_serialize(CTX, xonly_ser, &generated_outputs[i]); + CHECK(secp256k1_memcmp_var(xonly_ser, (*sp_outputs[i]), 32) == 0); + } +} + +static void test_recipient_sort(void) { + unsigned char (*sp_addresses[3])[2][33]; + unsigned char (*sp_outputs[3])[32]; + + /* With a fixed set of addresses and a fixed set of inputs, + * test that we always get the same outputs, regardless of the ordering + * of the recipients + */ + sp_addresses[0] = &CAROL_ADDRESS; + sp_addresses[1] = &BOB_ADDRESS; + sp_addresses[2] = &CAROL_ADDRESS; + + sp_outputs[0] = &CAROL_OUTPUT_ONE; + sp_outputs[1] = &BOB_OUTPUT; + sp_outputs[2] = &CAROL_OUTPUT_TWO; + test_recipient_sort_helper(sp_addresses, sp_outputs); + + sp_addresses[0] = &CAROL_ADDRESS; + sp_addresses[1] = &CAROL_ADDRESS; + sp_addresses[2] = &BOB_ADDRESS; + + sp_outputs[0] = &CAROL_OUTPUT_ONE; + sp_outputs[1] = &CAROL_OUTPUT_TWO; + sp_outputs[2] = &BOB_OUTPUT; + test_recipient_sort_helper(sp_addresses, sp_outputs); + + sp_addresses[0] = &BOB_ADDRESS; + sp_addresses[1] = &CAROL_ADDRESS; + sp_addresses[2] = &CAROL_ADDRESS; + + /* Note: in this case, the second output for Carol comes before the first. + * This is because heapsort is an unstable sorting algorithm, i.e., the ordering + * of identical elements is not guaranteed to be preserved + */ + sp_outputs[0] = &BOB_OUTPUT; + sp_outputs[1] = &CAROL_OUTPUT_TWO; + sp_outputs[2] = &CAROL_OUTPUT_ONE; + test_recipient_sort_helper(sp_addresses, sp_outputs); +} + +static void test_send_api(void) { + unsigned char (*sp_addresses[2])[2][33]; + unsigned char const *p[1]; + secp256k1_keypair const *t[1]; + secp256k1_silentpayments_recipient r[2]; + const secp256k1_silentpayments_recipient *rp[2]; + secp256k1_xonly_pubkey o[2]; + secp256k1_xonly_pubkey *op[2]; + secp256k1_keypair taproot; + size_t i; + + /* Set up Bob and Carol as the recipients */ + sp_addresses[0] = &BOB_ADDRESS; + sp_addresses[1] = &CAROL_ADDRESS; + for (i = 0; i < 2; i++) { + CHECK(secp256k1_ec_pubkey_parse(CTX, &r[i].scan_pubkey, (*sp_addresses[i])[0], 33)); + CHECK(secp256k1_ec_pubkey_parse(CTX, &r[i].spend_pubkey,(*sp_addresses[i])[1], 33)); + /* Set the index value incorrectly */ + r[i].index = 0; + rp[i] = &r[i]; + op[i] = &o[i]; + } + /* Set up a taproot key and a plain key for Alice */ + CHECK(secp256k1_keypair_create(CTX, &taproot, ALICE_SECKEY)); + t[0] = &taproot; + p[0] = ALICE_SECKEY; + + /* Fails if the index is set incorrectly */ + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_sender_create_outputs(CTX, op, rp, 2, SMALLEST_OUTPOINT, NULL, 0, p, 1)); + + /* Set the index correctly for the next tests */ + for (i = 0; i < 2; i++) { + r[i].index = i; + } + CHECK(secp256k1_silentpayments_sender_create_outputs(CTX, op, rp, 2, SMALLEST_OUTPOINT, NULL, 0, p, 1)); + + /* Check that null arguments are handled */ + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_sender_create_outputs(CTX, NULL, rp, 2, SMALLEST_OUTPOINT, t, 1, p, 1)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_sender_create_outputs(CTX, op, NULL, 2, SMALLEST_OUTPOINT, t, 1, p, 1)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_sender_create_outputs(CTX, op, rp, 2, NULL, t, 1, p, 1)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_sender_create_outputs(CTX, op, rp, 2, SMALLEST_OUTPOINT, NULL, 1, p, 1)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_sender_create_outputs(CTX, op, rp, 2, SMALLEST_OUTPOINT, t, 1, NULL, 1)); + + /* Check that array arguments are verified */ + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_sender_create_outputs(CTX, op, rp, 2, SMALLEST_OUTPOINT, NULL, 0, NULL, 0)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_sender_create_outputs(CTX, op, rp, 0, SMALLEST_OUTPOINT, NULL, 0, p, 1)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_sender_create_outputs(CTX, op, rp, 2, SMALLEST_OUTPOINT, t, 0, p, 1)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_sender_create_outputs(CTX, op, rp, 2, SMALLEST_OUTPOINT, t, 1, p, 0)); + + /* Create malformed keys for Alice by using a key that will overflow */ + p[0] = ORDERC; + CHECK(secp256k1_silentpayments_sender_create_outputs(CTX, op, rp, 2, SMALLEST_OUTPOINT, NULL, 0, p, 1) == 0); +} + +static void test_label_api(void) { + secp256k1_pubkey l, s, ls, e; /* label pk, spend pk, labelled spend pk, expected labelled spend pk */ + unsigned char lt[32]; /* label tweak */ + const unsigned char expected[33] = { + 0x03,0xdc,0x7f,0x09,0x9a,0xbe,0x95,0x7a, + 0x58,0x43,0xd2,0xb6,0xbb,0x35,0x79,0x61, + 0x5c,0x60,0x36,0xa4,0x9b,0x86,0xf4,0xbe, + 0x46,0x38,0x60,0x28,0xa8,0x1a,0x77,0xd4,0x91 + }; + + /* Create a label and labelled spend public key, verify we get the expected result */ + CHECK(secp256k1_ec_pubkey_parse(CTX, &s, BOB_ADDRESS[1], 33)); + CHECK(secp256k1_silentpayments_recipient_create_label_tweak(CTX, &l, lt, ALICE_SECKEY, 1)); + CHECK(secp256k1_silentpayments_recipient_create_labelled_spend_pubkey(CTX, &ls, &s, &l)); + CHECK(secp256k1_ec_pubkey_parse(CTX, &e, expected, 33)); + CHECK(secp256k1_ec_pubkey_cmp(CTX, &ls, &e) == 0); + + /* Check null values are handled */ + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_create_label_tweak(CTX, NULL, lt, ALICE_SECKEY, 1)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_create_label_tweak(CTX, &l, NULL, ALICE_SECKEY, 1)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_create_label_tweak(CTX, &l, lt, NULL, 1)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_create_labelled_spend_pubkey(CTX, NULL, &s, &l)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_create_labelled_spend_pubkey(CTX, &ls, NULL, &l)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_create_labelled_spend_pubkey(CTX, &ls, &s, NULL)); +} + +static void test_recipient_api(void) { + secp256k1_silentpayments_public_data pd; /* public data */ + secp256k1_silentpayments_found_output f; /* a silent payment found output */ + secp256k1_silentpayments_found_output *fp[1]; /* array of pointers to found outputs */ + secp256k1_xonly_pubkey t; /* taproot x-only public key */ + secp256k1_xonly_pubkey const *tp[1]; /* array of pointers to xonly pks */ + secp256k1_pubkey p; /* plain public key */ + secp256k1_pubkey const *pp[1]; /* array of pointers to plain pks */ + unsigned char o[33]; /* serialized public data, serialized shared secret */ + unsigned char malformed[33] = { 0x01 }; /* malformed public key serialization */ + size_t n_f; /* number of found outputs */ + + CHECK(secp256k1_ec_pubkey_parse(CTX, &p, BOB_ADDRESS[0], 33)); + CHECK(secp256k1_xonly_pubkey_parse(CTX, &t, &BOB_ADDRESS[0][1])); + tp[0] = &t; + pp[0] = &p; + fp[0] = &f; + CHECK(secp256k1_silentpayments_recipient_public_data_create(CTX, &pd, SMALLEST_OUTPOINT, tp, 1, pp, 1)); + + /* Check null values are handled */ + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_public_data_create(CTX, NULL, SMALLEST_OUTPOINT, tp, 1, pp, 1)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_public_data_create(CTX, &pd, NULL, tp, 1, pp, 1)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_public_data_create(CTX, &pd, SMALLEST_OUTPOINT, NULL, 1, pp, 1)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_public_data_create(CTX, &pd, SMALLEST_OUTPOINT, tp, 1, NULL, 1)); + + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_public_data_serialize(CTX, NULL, &pd)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_public_data_serialize(CTX, o, NULL)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_public_data_parse(CTX, NULL, o)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_public_data_parse(CTX, &pd, NULL)); + + /* Check that malformed serializations are rejected */ + CHECK(secp256k1_silentpayments_recipient_public_data_parse(CTX, &pd, malformed) == 0); + + /* This public_data object was created with combined = 0, i.e., it has both the input hash and summed public keypair. + * In instances where the caller has access the the full transaction, they should use `_scan_outputs` instead, so + * verify trying to use `_recipient_create_shared_secret` will fail */ + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_create_shared_secret(CTX, o, ALICE_SECKEY, &pd)); + + /* Parse a public_data object from a 33 byte serialization and check that trying to serialize this public_data object will fail */ + CHECK(secp256k1_silentpayments_recipient_public_data_parse(CTX, &pd, BOB_ADDRESS[0])); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_public_data_serialize(CTX, o, &pd)); + + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_public_data_create(CTX, &pd, SMALLEST_OUTPOINT, tp, 0, pp, 1)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_public_data_create(CTX, &pd, SMALLEST_OUTPOINT, tp, 1, pp, 0)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_public_data_create(CTX, &pd, SMALLEST_OUTPOINT, NULL, 0, pp, 0)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_public_data_create(CTX, &pd, SMALLEST_OUTPOINT, NULL, 0, NULL, 0)); + + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_create_shared_secret(CTX, NULL, ALICE_SECKEY, &pd)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_create_shared_secret(CTX, o, NULL, &pd)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_create_shared_secret(CTX, o, ALICE_SECKEY, NULL)); + + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_create_output_pubkey(CTX, NULL, o, &p, 0)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_create_output_pubkey(CTX, &t, NULL, &p, 0)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_create_output_pubkey(CTX, &t, o, NULL, 0)); + + n_f = 0; + labels_cache.ctx = CTX; + labels_cache.entries_used = 0; + CHECK(secp256k1_silentpayments_recipient_scan_outputs(CTX, fp, &n_f, tp, 1, ALICE_SECKEY, &pd, &p, &label_lookup, &labels_cache)); + CHECK(secp256k1_silentpayments_recipient_scan_outputs(CTX, fp, &n_f, tp, 1, ALICE_SECKEY, &pd, &p, NULL, NULL)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_scan_outputs(CTX, NULL, &n_f, tp, 1, ALICE_SECKEY, &pd, &p, &label_lookup, &labels_cache)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_scan_outputs(CTX, fp, NULL, tp, 1, ALICE_SECKEY, &pd, &p, &label_lookup, &labels_cache)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_scan_outputs(CTX, fp, &n_f, NULL, 1, ALICE_SECKEY, &pd, &p, &label_lookup, &labels_cache)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_scan_outputs(CTX, fp, &n_f, tp, 1, NULL, &pd, &p, &label_lookup, &labels_cache)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_scan_outputs(CTX, fp, &n_f, tp, 1, ALICE_SECKEY, NULL, &p, &label_lookup, &labels_cache)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_scan_outputs(CTX, fp, &n_f, tp, 1, ALICE_SECKEY, &pd, NULL, &label_lookup, &labels_cache)); + + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_scan_outputs(CTX, fp, &n_f, tp, 0, ALICE_SECKEY, &pd, &p, &label_lookup, &labels_cache)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_scan_outputs(CTX, fp, &n_f, tp, 1, ALICE_SECKEY, &pd, &p, NULL, &labels_cache)); + CHECK_ILLEGAL(CTX, secp256k1_silentpayments_recipient_scan_outputs(CTX, fp, &n_f, tp, 1, ALICE_SECKEY, &pd, &p, &label_lookup, NULL)); +} + +void run_silentpayments_test_vector_send(const struct bip352_test_vector *test) { + secp256k1_silentpayments_recipient recipients[MAX_OUTPUTS_PER_TEST_CASE]; + const secp256k1_silentpayments_recipient *recipient_ptrs[MAX_OUTPUTS_PER_TEST_CASE]; + secp256k1_xonly_pubkey generated_outputs[MAX_OUTPUTS_PER_TEST_CASE]; + secp256k1_xonly_pubkey *generated_output_ptrs[MAX_OUTPUTS_PER_TEST_CASE]; + secp256k1_keypair taproot_keypairs[MAX_INPUTS_PER_TEST_CASE]; + secp256k1_keypair const *taproot_keypair_ptrs[MAX_INPUTS_PER_TEST_CASE]; + unsigned char const *plain_seckeys[MAX_INPUTS_PER_TEST_CASE]; + unsigned char created_output[32]; + size_t i, j, k; + int match, ret; + + /* Check that sender creates expected outputs */ + for (i = 0; i < test->num_outputs; i++) { + CHECK(secp256k1_ec_pubkey_parse(CTX, &recipients[i].scan_pubkey, test->recipient_pubkeys[i].scan_pubkey, 33)); + CHECK(secp256k1_ec_pubkey_parse(CTX, &recipients[i].spend_pubkey, test->recipient_pubkeys[i].spend_pubkey, 33)); + recipients[i].index = i; + recipient_ptrs[i] = &recipients[i]; + generated_output_ptrs[i] = &generated_outputs[i]; + } + for (i = 0; i < test->num_plain_inputs; i++) { + plain_seckeys[i] = test->plain_seckeys[i]; + } + for (i = 0; i < test->num_taproot_inputs; i++) { + CHECK(secp256k1_keypair_create(CTX, &taproot_keypairs[i], test->taproot_seckeys[i])); + taproot_keypair_ptrs[i] = &taproot_keypairs[i]; + } + ret = secp256k1_silentpayments_sender_create_outputs(CTX, + generated_output_ptrs, + recipient_ptrs, + test->num_outputs, + test->outpoint_smallest, + test->num_taproot_inputs > 0 ? taproot_keypair_ptrs : NULL, test->num_taproot_inputs, + test->num_plain_inputs > 0 ? plain_seckeys : NULL, test->num_plain_inputs + ); + /* If we are unable to create outputs, e.g., the input keys sum to zero, check that the + * expected number of recipient outputs for this test case is zero + */ + if (!ret) { + CHECK(test->num_recipient_outputs == 0); + return; + } + + match = 0; + for (i = 0; i < test->num_output_sets; i++) { + size_t n_matches = 0; + for (j = 0; j < test->num_outputs; j++) { + CHECK(secp256k1_xonly_pubkey_serialize(CTX, created_output, &generated_outputs[j])); + /* Loop over both lists to ensure tests don't fail due to different orderings of outputs */ + for (k = 0; k < test->num_recipient_outputs; k++) { + if (secp256k1_memcmp_var(created_output, test->recipient_outputs[i][k], 32) == 0) { + n_matches++; + break; + } + } + } + if (n_matches == test->num_recipient_outputs) { + match = 1; + break; + } + } + CHECK(match); +} + +void run_silentpayments_test_vector_receive(const struct bip352_test_vector *test) { + secp256k1_pubkey plain_pubkeys_objs[MAX_INPUTS_PER_TEST_CASE]; + secp256k1_xonly_pubkey xonly_pubkeys_objs[MAX_INPUTS_PER_TEST_CASE]; + secp256k1_xonly_pubkey tx_output_objs[MAX_OUTPUTS_PER_TEST_CASE]; + secp256k1_silentpayments_found_output found_output_objs[MAX_OUTPUTS_PER_TEST_CASE]; + secp256k1_pubkey const *plain_pubkeys[MAX_INPUTS_PER_TEST_CASE]; + secp256k1_xonly_pubkey const *xonly_pubkeys[MAX_INPUTS_PER_TEST_CASE]; + secp256k1_xonly_pubkey const *tx_outputs[MAX_OUTPUTS_PER_TEST_CASE]; + secp256k1_silentpayments_found_output *found_outputs[MAX_OUTPUTS_PER_TEST_CASE]; + unsigned char found_outputs_light_client[MAX_OUTPUTS_PER_TEST_CASE][32]; + secp256k1_pubkey recipient_scan_pubkey; + secp256k1_pubkey recipient_spend_pubkey; + size_t i,j; + int match, ret; + size_t n_found = 0; + unsigned char found_output[32]; + unsigned char found_signatures[10][64]; + secp256k1_silentpayments_public_data public_data, public_data_index; + unsigned char shared_secret_lightclient[33]; + unsigned char light_client_data[33]; + + + /* prepare the inputs */ + { + for (i = 0; i < test->num_plain_inputs; i++) { + CHECK(secp256k1_ec_pubkey_parse(CTX, &plain_pubkeys_objs[i], test->plain_pubkeys[i], 33)); + plain_pubkeys[i] = &plain_pubkeys_objs[i]; + } + for (i = 0; i < test->num_taproot_inputs; i++) { + CHECK(secp256k1_xonly_pubkey_parse(CTX, &xonly_pubkeys_objs[i], test->xonly_pubkeys[i])); + xonly_pubkeys[i] = &xonly_pubkeys_objs[i]; + } + ret = secp256k1_silentpayments_recipient_public_data_create(CTX, &public_data, + test->outpoint_smallest, + test->num_taproot_inputs > 0 ? xonly_pubkeys : NULL, test->num_taproot_inputs, + test->num_plain_inputs > 0 ? plain_pubkeys : NULL, test->num_plain_inputs + ); + /* If we are unable to create the public_data object, e.g., the input public keys sum to + * zero, check that the expected number of recipient outputs for this test case is zero + */ + if (!ret) { + CHECK(test->num_found_output_pubkeys == 0); + return; + } + } + /* prepare the outputs */ + { + for (i = 0; i < test->num_to_scan_outputs; i++) { + CHECK(secp256k1_xonly_pubkey_parse(CTX, &tx_output_objs[i], test->to_scan_outputs[i])); + tx_outputs[i] = &tx_output_objs[i]; + } + for (i = 0; i < test->num_found_output_pubkeys; i++) { + found_outputs[i] = &found_output_objs[i]; + } + } + + /* scan / spend pubkeys are not in the given data of the recipient part, so let's compute them */ + CHECK(secp256k1_ec_pubkey_create(CTX, &recipient_scan_pubkey, test->scan_seckey)); + CHECK(secp256k1_ec_pubkey_create(CTX, &recipient_spend_pubkey, test->spend_seckey)); + + /* create labels cache */ + labels_cache.ctx = CTX; + labels_cache.entries_used = 0; + for (i = 0; i < test->num_labels; i++) { + unsigned int m = test->label_integers[i]; + struct label_cache_entry *cache_entry = &labels_cache.entries[labels_cache.entries_used]; + CHECK(secp256k1_silentpayments_recipient_create_label_tweak(CTX, &cache_entry->label, cache_entry->label_tweak, test->scan_seckey, m)); + labels_cache.entries_used++; + } + CHECK(secp256k1_silentpayments_recipient_scan_outputs(CTX, + found_outputs, &n_found, + tx_outputs, test->num_to_scan_outputs, + test->scan_seckey, + &public_data, + &recipient_spend_pubkey, + label_lookup, &labels_cache) + ); + for (i = 0; i < n_found; i++) { + unsigned char full_seckey[32]; + secp256k1_keypair keypair; + unsigned char signature[64]; + memcpy(&full_seckey, test->spend_seckey, 32); + CHECK(secp256k1_ec_seckey_tweak_add(CTX, full_seckey, found_outputs[i]->tweak)); + CHECK(secp256k1_keypair_create(CTX, &keypair, full_seckey)); + CHECK(secp256k1_schnorrsig_sign32(CTX, signature, MSG32, &keypair, AUX32)); + memcpy(found_signatures[i], signature, 64); + } + + /* compare expected and scanned outputs (including calculated seckey tweaks and signatures) */ + match = 0; + for (i = 0; i < n_found; i++) { + CHECK(secp256k1_xonly_pubkey_serialize(CTX, found_output, &found_outputs[i]->output)); + for (j = 0; j < test->num_found_output_pubkeys; j++) { + if (secp256k1_memcmp_var(&found_output, test->found_output_pubkeys[j], 32) == 0) { + CHECK(secp256k1_memcmp_var(found_outputs[i]->tweak, test->found_seckey_tweaks[j], 32) == 0); + CHECK(secp256k1_memcmp_var(found_signatures[i], test->found_signatures[j], 64) == 0); + match = 1; + break; + } + } + CHECK(match); + } + CHECK(n_found == test->num_found_output_pubkeys); + /* Scan as a light client + * it is not recommended to use labels as a light client so here we are only + * running this on tests that do not involve labels. Primarily, this test is to + * ensure that _recipient_created_shared_secret and _create_shared_secret are the same + */ + if (test->num_labels == 0) { + CHECK(secp256k1_silentpayments_recipient_public_data_serialize(CTX, light_client_data, &public_data)); + CHECK(secp256k1_silentpayments_recipient_public_data_parse(CTX, &public_data_index, light_client_data)); + CHECK(secp256k1_silentpayments_recipient_create_shared_secret(CTX, shared_secret_lightclient, test->scan_seckey, &public_data_index)); + n_found = 0; + { + int found = 0; + size_t k = 0; + secp256k1_xonly_pubkey potential_output; + + while(1) { + + CHECK(secp256k1_silentpayments_recipient_create_output_pubkey(CTX, + &potential_output, + shared_secret_lightclient, + &recipient_spend_pubkey, + k + )); + /* At this point, we check that the utxo exists with a light client protocol. + * For this example, we'll just iterate through the list of pubkeys */ + found = 0; + for (i = 0; i < test->num_to_scan_outputs; i++) { + if (secp256k1_xonly_pubkey_cmp(CTX, &potential_output, tx_outputs[i]) == 0) { + secp256k1_xonly_pubkey_serialize(CTX, found_outputs_light_client[n_found], &potential_output); + found = 1; + n_found++; + k++; + break; + } + } + if (!found) { + break; + } + } + } + CHECK(n_found == test->num_found_output_pubkeys); + for (i = 0; i < n_found; i++) { + match = 0; + for (j = 0; j < test->num_found_output_pubkeys; j++) { + if (secp256k1_memcmp_var(&found_outputs_light_client[i], test->found_output_pubkeys[j], 32) == 0) { + match = 1; + break; + } + } + CHECK(match); + } + } +} + +void run_silentpayments_test_vectors(void) { + size_t i; + + + for (i = 0; i < sizeof(bip352_test_vectors) / sizeof(bip352_test_vectors[0]); i++) { + const struct bip352_test_vector *test = &bip352_test_vectors[i]; + run_silentpayments_test_vector_send(test); + run_silentpayments_test_vector_receive(test); + } +} + +void run_silentpayments_tests(void) { + test_recipient_sort(); + test_send_api(); + test_label_api(); + test_recipient_api(); + run_silentpayments_test_vectors(); +} + +#endif diff --git a/src/secp256k1/src/modules/silentpayments/vectors.h b/src/secp256k1/src/modules/silentpayments/vectors.h new file mode 100644 index 0000000000000..d0bf4dbc03e53 --- /dev/null +++ b/src/secp256k1/src/modules/silentpayments/vectors.h @@ -0,0 +1,3900 @@ +/* Note: this file was autogenerated using tests_silentpayments_generate.py. Do not edit. */ +#define SECP256K1_SILENTPAYMENTS_NUMBER_TESTVECTORS (25) + +#define MAX_INPUTS_PER_TEST_CASE 3 +#define MAX_OUTPUTS_PER_TEST_CASE 4 +#define MAX_PERMUTATIONS_PER_SENDING_TEST_CASE 12 + +struct bip352_recipient_addressdata { + unsigned char scan_pubkey[33]; + unsigned char spend_pubkey[33]; +}; + +struct bip352_test_vector { + /* Inputs (private keys / public keys + smallest outpoint) */ + size_t num_plain_inputs; + unsigned char plain_seckeys[MAX_INPUTS_PER_TEST_CASE][32]; + unsigned char plain_pubkeys[MAX_INPUTS_PER_TEST_CASE][33]; + + size_t num_taproot_inputs; + unsigned char taproot_seckeys[MAX_INPUTS_PER_TEST_CASE][32]; + unsigned char xonly_pubkeys[MAX_INPUTS_PER_TEST_CASE][32]; + + unsigned char outpoint_smallest[36]; + + /* Given sender data (pubkeys encoded per output address to send to) */ + size_t num_outputs; + struct bip352_recipient_addressdata recipient_pubkeys[MAX_OUTPUTS_PER_TEST_CASE]; + + /* Expected sender data */ + size_t num_output_sets; + size_t num_recipient_outputs; + unsigned char recipient_outputs[MAX_PERMUTATIONS_PER_SENDING_TEST_CASE][MAX_OUTPUTS_PER_TEST_CASE][32]; + + /* Given recipient data */ + unsigned char scan_seckey[32]; + unsigned char spend_seckey[32]; + size_t num_to_scan_outputs; + unsigned char to_scan_outputs[MAX_OUTPUTS_PER_TEST_CASE][32]; + size_t num_labels; + unsigned int label_integers[MAX_OUTPUTS_PER_TEST_CASE]; + + /* Expected recipient data */ + size_t num_found_output_pubkeys; + unsigned char found_output_pubkeys[MAX_OUTPUTS_PER_TEST_CASE][32]; + unsigned char found_seckey_tweaks[MAX_OUTPUTS_PER_TEST_CASE][32]; + unsigned char found_signatures[MAX_OUTPUTS_PER_TEST_CASE][64]; +}; + +static const struct bip352_test_vector bip352_test_vectors[SECP256K1_SILENTPAYMENTS_NUMBER_TESTVECTORS] = { + /* ----- Simple send: two inputs (1) ----- */ + { + 2, + { /* input plain seckeys */ + {0xea,0xdc,0x78,0x16,0x5f,0xf1,0xf8,0xea,0x94,0xad,0x7c,0xfd,0xc5,0x49,0x90,0x73,0x8a,0x4c,0x53,0xf6,0xe0,0x50,0x7b,0x42,0x15,0x42,0x01,0xb8,0xe5,0xdf,0xf3,0xb1}, + {0x93,0xf5,0xed,0x90,0x7a,0xd5,0xb2,0xbd,0xbb,0xdc,0xb5,0xd9,0x11,0x6e,0xbc,0x0a,0x4e,0x1f,0x92,0xf9,0x10,0xd5,0x26,0x02,0x37,0xfa,0x45,0xa9,0x40,0x8a,0xad,0x16}, + "" + }, + { /* input plain pubkeys */ + {0x02,0x5a,0x1e,0x61,0xf8,0x98,0x17,0x30,0x40,0xe2,0x06,0x16,0xd4,0x3e,0x9f,0x49,0x6f,0xba,0x90,0x33,0x8a,0x39,0xfa,0xa1,0xed,0x98,0xfc,0xba,0xee,0xe4,0xdd,0x9b,0xe5}, + {0x03,0xbd,0x85,0x68,0x5d,0x03,0xd1,0x11,0x69,0x9b,0x15,0xd0,0x46,0x31,0x9f,0xeb,0xe7,0x7f,0x8d,0xe5,0x28,0x6e,0x9e,0x51,0x27,0x03,0xcd,0xee,0x1b,0xf3,0xbe,0x37,0x92}, + "" + }, + 0, + { /* input taproot seckeys */ + "", + "", + "" + }, + { /* input x-only pubkeys */ + "", + "", + "" + }, + /* smallest outpoint */ + {0x16,0x9e,0x1e,0x83,0xe9,0x30,0x85,0x33,0x91,0xbc,0x6f,0x35,0xf6,0x05,0xc6,0x75,0x4c,0xfe,0xad,0x57,0xcf,0x83,0x87,0x63,0x9d,0x3b,0x40,0x96,0xc5,0x4f,0x18,0xf4,0x00,0x00,0x00,0x00}, + 1, + { /* recipient pubkeys (address data) */ + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x02,0x5c,0xc9,0x85,0x6d,0x6f,0x83,0x75,0x35,0x0e,0x12,0x39,0x78,0xda,0xac,0x20,0x0c,0x26,0x0c,0xb5,0xb5,0xae,0x83,0x10,0x6c,0xab,0x90,0x48,0x4d,0xcd,0x8f,0xcf,0x36}, + }, + { + "", + "", + }, + { + "", + "", + }, + { + "", + "", + } + }, + 1, + 1, + { /* recipient outputs */ + { + {0x3e,0x9f,0xce,0x73,0xd4,0xe7,0x7a,0x48,0x09,0x90,0x8e,0x3c,0x3a,0x2e,0x54,0xee,0x14,0x7b,0x93,0x12,0xdc,0x50,0x44,0xa1,0x93,0xd1,0xfc,0x85,0xde,0x46,0xe3,0xc1}, + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + }, + /* recipient data (scan and spend seckeys) */ + {0x0f,0x69,0x4e,0x06,0x80,0x28,0xa7,0x17,0xf8,0xaf,0x6b,0x94,0x11,0xf9,0xa1,0x33,0xdd,0x35,0x65,0x25,0x87,0x14,0xcc,0x22,0x65,0x94,0xb3,0x4d,0xb9,0x0c,0x1f,0x2c}, + {0x9d,0x6a,0xd8,0x55,0xce,0x34,0x17,0xef,0x84,0xe8,0x36,0x89,0x2e,0x5a,0x56,0x39,0x2b,0xfb,0xa0,0x5f,0xa5,0xd9,0x7c,0xce,0xa3,0x0e,0x26,0x6f,0x54,0x0e,0x08,0xb3}, + 1, + { /* outputs to scan */ + {0x3e,0x9f,0xce,0x73,0xd4,0xe7,0x7a,0x48,0x09,0x90,0x8e,0x3c,0x3a,0x2e,0x54,0xee,0x14,0x7b,0x93,0x12,0xdc,0x50,0x44,0xa1,0x93,0xd1,0xfc,0x85,0xde,0x46,0xe3,0xc1}, + "", + "", + "" + }, + 0, {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, /* labels */ + /* expected output data (pubkeys and seckey tweaks) */ + 1, + { + {0x3e,0x9f,0xce,0x73,0xd4,0xe7,0x7a,0x48,0x09,0x90,0x8e,0x3c,0x3a,0x2e,0x54,0xee,0x14,0x7b,0x93,0x12,0xdc,0x50,0x44,0xa1,0x93,0xd1,0xfc,0x85,0xde,0x46,0xe3,0xc1}, + "", + "", + "" + }, + { + {0xf4,0x38,0xb4,0x01,0x79,0xa3,0xc4,0x26,0x2d,0xe1,0x29,0x86,0xc0,0xe6,0xcc,0xe0,0x63,0x40,0x07,0xcd,0xc7,0x9c,0x1d,0xcd,0x3e,0x20,0xb9,0xeb,0xc2,0xe7,0xee,0xf6}, + "", + "", + "" + }, + { + {0x74,0xf8,0x5b,0x85,0x63,0x37,0xfb,0xe8,0x37,0x64,0x3b,0x86,0xf4,0x62,0x11,0x81,0x59,0xf9,0x3a,0xc4,0xac,0xc2,0x67,0x15,0x22,0xf2,0x7e,0x8f,0x67,0xb0,0x79,0x95,0x91,0x95,0xcc,0xc7,0xa5,0xdb,0xee,0x39,0x6d,0x29,0x09,0xf5,0xd6,0x80,0xd6,0xe3,0x0c,0xda,0x73,0x59,0xaa,0x27,0x55,0x82,0x25,0x09,0xb7,0x0d,0x6b,0x06,0x87,0xa1}, + "", + "", + "" + } + }, + + /* ----- Simple send: two inputs, order reversed (2) ----- */ + { + 2, + { /* input plain seckeys */ + {0xea,0xdc,0x78,0x16,0x5f,0xf1,0xf8,0xea,0x94,0xad,0x7c,0xfd,0xc5,0x49,0x90,0x73,0x8a,0x4c,0x53,0xf6,0xe0,0x50,0x7b,0x42,0x15,0x42,0x01,0xb8,0xe5,0xdf,0xf3,0xb1}, + {0x93,0xf5,0xed,0x90,0x7a,0xd5,0xb2,0xbd,0xbb,0xdc,0xb5,0xd9,0x11,0x6e,0xbc,0x0a,0x4e,0x1f,0x92,0xf9,0x10,0xd5,0x26,0x02,0x37,0xfa,0x45,0xa9,0x40,0x8a,0xad,0x16}, + "" + }, + { /* input plain pubkeys */ + {0x02,0x5a,0x1e,0x61,0xf8,0x98,0x17,0x30,0x40,0xe2,0x06,0x16,0xd4,0x3e,0x9f,0x49,0x6f,0xba,0x90,0x33,0x8a,0x39,0xfa,0xa1,0xed,0x98,0xfc,0xba,0xee,0xe4,0xdd,0x9b,0xe5}, + {0x03,0xbd,0x85,0x68,0x5d,0x03,0xd1,0x11,0x69,0x9b,0x15,0xd0,0x46,0x31,0x9f,0xeb,0xe7,0x7f,0x8d,0xe5,0x28,0x6e,0x9e,0x51,0x27,0x03,0xcd,0xee,0x1b,0xf3,0xbe,0x37,0x92}, + "" + }, + 0, + { /* input taproot seckeys */ + "", + "", + "" + }, + { /* input x-only pubkeys */ + "", + "", + "" + }, + /* smallest outpoint */ + {0x16,0x9e,0x1e,0x83,0xe9,0x30,0x85,0x33,0x91,0xbc,0x6f,0x35,0xf6,0x05,0xc6,0x75,0x4c,0xfe,0xad,0x57,0xcf,0x83,0x87,0x63,0x9d,0x3b,0x40,0x96,0xc5,0x4f,0x18,0xf4,0x00,0x00,0x00,0x00}, + 1, + { /* recipient pubkeys (address data) */ + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x02,0x5c,0xc9,0x85,0x6d,0x6f,0x83,0x75,0x35,0x0e,0x12,0x39,0x78,0xda,0xac,0x20,0x0c,0x26,0x0c,0xb5,0xb5,0xae,0x83,0x10,0x6c,0xab,0x90,0x48,0x4d,0xcd,0x8f,0xcf,0x36}, + }, + { + "", + "", + }, + { + "", + "", + }, + { + "", + "", + } + }, + 1, + 1, + { /* recipient outputs */ + { + {0x3e,0x9f,0xce,0x73,0xd4,0xe7,0x7a,0x48,0x09,0x90,0x8e,0x3c,0x3a,0x2e,0x54,0xee,0x14,0x7b,0x93,0x12,0xdc,0x50,0x44,0xa1,0x93,0xd1,0xfc,0x85,0xde,0x46,0xe3,0xc1}, + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + }, + /* recipient data (scan and spend seckeys) */ + {0x0f,0x69,0x4e,0x06,0x80,0x28,0xa7,0x17,0xf8,0xaf,0x6b,0x94,0x11,0xf9,0xa1,0x33,0xdd,0x35,0x65,0x25,0x87,0x14,0xcc,0x22,0x65,0x94,0xb3,0x4d,0xb9,0x0c,0x1f,0x2c}, + {0x9d,0x6a,0xd8,0x55,0xce,0x34,0x17,0xef,0x84,0xe8,0x36,0x89,0x2e,0x5a,0x56,0x39,0x2b,0xfb,0xa0,0x5f,0xa5,0xd9,0x7c,0xce,0xa3,0x0e,0x26,0x6f,0x54,0x0e,0x08,0xb3}, + 1, + { /* outputs to scan */ + {0x3e,0x9f,0xce,0x73,0xd4,0xe7,0x7a,0x48,0x09,0x90,0x8e,0x3c,0x3a,0x2e,0x54,0xee,0x14,0x7b,0x93,0x12,0xdc,0x50,0x44,0xa1,0x93,0xd1,0xfc,0x85,0xde,0x46,0xe3,0xc1}, + "", + "", + "" + }, + 0, {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, /* labels */ + /* expected output data (pubkeys and seckey tweaks) */ + 1, + { + {0x3e,0x9f,0xce,0x73,0xd4,0xe7,0x7a,0x48,0x09,0x90,0x8e,0x3c,0x3a,0x2e,0x54,0xee,0x14,0x7b,0x93,0x12,0xdc,0x50,0x44,0xa1,0x93,0xd1,0xfc,0x85,0xde,0x46,0xe3,0xc1}, + "", + "", + "" + }, + { + {0xf4,0x38,0xb4,0x01,0x79,0xa3,0xc4,0x26,0x2d,0xe1,0x29,0x86,0xc0,0xe6,0xcc,0xe0,0x63,0x40,0x07,0xcd,0xc7,0x9c,0x1d,0xcd,0x3e,0x20,0xb9,0xeb,0xc2,0xe7,0xee,0xf6}, + "", + "", + "" + }, + { + {0x74,0xf8,0x5b,0x85,0x63,0x37,0xfb,0xe8,0x37,0x64,0x3b,0x86,0xf4,0x62,0x11,0x81,0x59,0xf9,0x3a,0xc4,0xac,0xc2,0x67,0x15,0x22,0xf2,0x7e,0x8f,0x67,0xb0,0x79,0x95,0x91,0x95,0xcc,0xc7,0xa5,0xdb,0xee,0x39,0x6d,0x29,0x09,0xf5,0xd6,0x80,0xd6,0xe3,0x0c,0xda,0x73,0x59,0xaa,0x27,0x55,0x82,0x25,0x09,0xb7,0x0d,0x6b,0x06,0x87,0xa1}, + "", + "", + "" + } + }, + + /* ----- Simple send: two inputs from the same transaction (3) ----- */ + { + 2, + { /* input plain seckeys */ + {0xea,0xdc,0x78,0x16,0x5f,0xf1,0xf8,0xea,0x94,0xad,0x7c,0xfd,0xc5,0x49,0x90,0x73,0x8a,0x4c,0x53,0xf6,0xe0,0x50,0x7b,0x42,0x15,0x42,0x01,0xb8,0xe5,0xdf,0xf3,0xb1}, + {0x93,0xf5,0xed,0x90,0x7a,0xd5,0xb2,0xbd,0xbb,0xdc,0xb5,0xd9,0x11,0x6e,0xbc,0x0a,0x4e,0x1f,0x92,0xf9,0x10,0xd5,0x26,0x02,0x37,0xfa,0x45,0xa9,0x40,0x8a,0xad,0x16}, + "" + }, + { /* input plain pubkeys */ + {0x02,0x5a,0x1e,0x61,0xf8,0x98,0x17,0x30,0x40,0xe2,0x06,0x16,0xd4,0x3e,0x9f,0x49,0x6f,0xba,0x90,0x33,0x8a,0x39,0xfa,0xa1,0xed,0x98,0xfc,0xba,0xee,0xe4,0xdd,0x9b,0xe5}, + {0x03,0xbd,0x85,0x68,0x5d,0x03,0xd1,0x11,0x69,0x9b,0x15,0xd0,0x46,0x31,0x9f,0xeb,0xe7,0x7f,0x8d,0xe5,0x28,0x6e,0x9e,0x51,0x27,0x03,0xcd,0xee,0x1b,0xf3,0xbe,0x37,0x92}, + "" + }, + 0, + { /* input taproot seckeys */ + "", + "", + "" + }, + { /* input x-only pubkeys */ + "", + "", + "" + }, + /* smallest outpoint */ + {0x16,0x9e,0x1e,0x83,0xe9,0x30,0x85,0x33,0x91,0xbc,0x6f,0x35,0xf6,0x05,0xc6,0x75,0x4c,0xfe,0xad,0x57,0xcf,0x83,0x87,0x63,0x9d,0x3b,0x40,0x96,0xc5,0x4f,0x18,0xf4,0x03,0x00,0x00,0x00}, + 1, + { /* recipient pubkeys (address data) */ + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x02,0x5c,0xc9,0x85,0x6d,0x6f,0x83,0x75,0x35,0x0e,0x12,0x39,0x78,0xda,0xac,0x20,0x0c,0x26,0x0c,0xb5,0xb5,0xae,0x83,0x10,0x6c,0xab,0x90,0x48,0x4d,0xcd,0x8f,0xcf,0x36}, + }, + { + "", + "", + }, + { + "", + "", + }, + { + "", + "", + } + }, + 1, + 1, + { /* recipient outputs */ + { + {0x79,0xe7,0x1b,0xaa,0x2b,0xa3,0xfc,0x66,0x39,0x6d,0xe3,0xa0,0x4f,0x16,0x8c,0x7b,0xf2,0x4d,0x68,0x70,0xec,0x88,0xca,0x87,0x77,0x54,0x79,0x0c,0x1d,0xb3,0x57,0xb6}, + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + }, + /* recipient data (scan and spend seckeys) */ + {0x0f,0x69,0x4e,0x06,0x80,0x28,0xa7,0x17,0xf8,0xaf,0x6b,0x94,0x11,0xf9,0xa1,0x33,0xdd,0x35,0x65,0x25,0x87,0x14,0xcc,0x22,0x65,0x94,0xb3,0x4d,0xb9,0x0c,0x1f,0x2c}, + {0x9d,0x6a,0xd8,0x55,0xce,0x34,0x17,0xef,0x84,0xe8,0x36,0x89,0x2e,0x5a,0x56,0x39,0x2b,0xfb,0xa0,0x5f,0xa5,0xd9,0x7c,0xce,0xa3,0x0e,0x26,0x6f,0x54,0x0e,0x08,0xb3}, + 1, + { /* outputs to scan */ + {0x79,0xe7,0x1b,0xaa,0x2b,0xa3,0xfc,0x66,0x39,0x6d,0xe3,0xa0,0x4f,0x16,0x8c,0x7b,0xf2,0x4d,0x68,0x70,0xec,0x88,0xca,0x87,0x77,0x54,0x79,0x0c,0x1d,0xb3,0x57,0xb6}, + "", + "", + "" + }, + 0, {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, /* labels */ + /* expected output data (pubkeys and seckey tweaks) */ + 1, + { + {0x79,0xe7,0x1b,0xaa,0x2b,0xa3,0xfc,0x66,0x39,0x6d,0xe3,0xa0,0x4f,0x16,0x8c,0x7b,0xf2,0x4d,0x68,0x70,0xec,0x88,0xca,0x87,0x77,0x54,0x79,0x0c,0x1d,0xb3,0x57,0xb6}, + "", + "", + "" + }, + { + {0x48,0x51,0x45,0x5b,0xfb,0xe1,0xab,0x4f,0x80,0x15,0x65,0x70,0xaa,0x45,0x06,0x32,0x01,0xaa,0x5c,0x9e,0x1b,0x1d,0xcd,0x29,0xf0,0xf8,0xc3,0x3d,0x10,0xbf,0x77,0xae}, + "", + "", + "" + }, + { + {0x10,0x33,0x2e,0xea,0x80,0x8b,0x6a,0x13,0xf7,0x00,0x59,0xa8,0xa7,0x31,0x95,0x80,0x8d,0xb7,0x82,0x01,0x29,0x07,0xf5,0xba,0x32,0xb6,0xea,0xe6,0x6a,0x2f,0x66,0xb4,0xf6,0x51,0x47,0xe2,0xb9,0x68,0xa1,0x67,0x8c,0x5f,0x73,0xd5,0x7d,0x5d,0x19,0x5d,0xba,0xf6,0x67,0xb6,0x06,0xff,0x80,0xc8,0x49,0x0e,0xac,0x1f,0x3b,0x71,0x06,0x57}, + "", + "", + "" + } + }, + + /* ----- Simple send: two inputs from the same transaction, order reversed (4) ----- */ + { + 2, + { /* input plain seckeys */ + {0xea,0xdc,0x78,0x16,0x5f,0xf1,0xf8,0xea,0x94,0xad,0x7c,0xfd,0xc5,0x49,0x90,0x73,0x8a,0x4c,0x53,0xf6,0xe0,0x50,0x7b,0x42,0x15,0x42,0x01,0xb8,0xe5,0xdf,0xf3,0xb1}, + {0x93,0xf5,0xed,0x90,0x7a,0xd5,0xb2,0xbd,0xbb,0xdc,0xb5,0xd9,0x11,0x6e,0xbc,0x0a,0x4e,0x1f,0x92,0xf9,0x10,0xd5,0x26,0x02,0x37,0xfa,0x45,0xa9,0x40,0x8a,0xad,0x16}, + "" + }, + { /* input plain pubkeys */ + {0x02,0x5a,0x1e,0x61,0xf8,0x98,0x17,0x30,0x40,0xe2,0x06,0x16,0xd4,0x3e,0x9f,0x49,0x6f,0xba,0x90,0x33,0x8a,0x39,0xfa,0xa1,0xed,0x98,0xfc,0xba,0xee,0xe4,0xdd,0x9b,0xe5}, + {0x03,0xbd,0x85,0x68,0x5d,0x03,0xd1,0x11,0x69,0x9b,0x15,0xd0,0x46,0x31,0x9f,0xeb,0xe7,0x7f,0x8d,0xe5,0x28,0x6e,0x9e,0x51,0x27,0x03,0xcd,0xee,0x1b,0xf3,0xbe,0x37,0x92}, + "" + }, + 0, + { /* input taproot seckeys */ + "", + "", + "" + }, + { /* input x-only pubkeys */ + "", + "", + "" + }, + /* smallest outpoint */ + {0x8d,0xd4,0xf5,0xfb,0xd5,0xe9,0x80,0xfc,0x02,0xf3,0x5c,0x6c,0xe1,0x45,0x93,0x5b,0x11,0xe2,0x84,0x60,0x5b,0xf5,0x99,0xa1,0x3c,0x6d,0x41,0x5d,0xb5,0x5d,0x07,0xa1,0x03,0x00,0x00,0x00}, + 1, + { /* recipient pubkeys (address data) */ + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x02,0x5c,0xc9,0x85,0x6d,0x6f,0x83,0x75,0x35,0x0e,0x12,0x39,0x78,0xda,0xac,0x20,0x0c,0x26,0x0c,0xb5,0xb5,0xae,0x83,0x10,0x6c,0xab,0x90,0x48,0x4d,0xcd,0x8f,0xcf,0x36}, + }, + { + "", + "", + }, + { + "", + "", + }, + { + "", + "", + } + }, + 1, + 1, + { /* recipient outputs */ + { + {0xf4,0xc2,0xda,0x80,0x7f,0x89,0xcb,0x15,0x01,0xf1,0xa7,0x73,0x22,0xa8,0x95,0xac,0xfb,0x93,0xc2,0x8e,0x08,0xed,0x27,0x24,0xd2,0xbe,0xb8,0xe4,0x45,0x39,0xba,0x38}, + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + }, + /* recipient data (scan and spend seckeys) */ + {0x0f,0x69,0x4e,0x06,0x80,0x28,0xa7,0x17,0xf8,0xaf,0x6b,0x94,0x11,0xf9,0xa1,0x33,0xdd,0x35,0x65,0x25,0x87,0x14,0xcc,0x22,0x65,0x94,0xb3,0x4d,0xb9,0x0c,0x1f,0x2c}, + {0x9d,0x6a,0xd8,0x55,0xce,0x34,0x17,0xef,0x84,0xe8,0x36,0x89,0x2e,0x5a,0x56,0x39,0x2b,0xfb,0xa0,0x5f,0xa5,0xd9,0x7c,0xce,0xa3,0x0e,0x26,0x6f,0x54,0x0e,0x08,0xb3}, + 1, + { /* outputs to scan */ + {0xf4,0xc2,0xda,0x80,0x7f,0x89,0xcb,0x15,0x01,0xf1,0xa7,0x73,0x22,0xa8,0x95,0xac,0xfb,0x93,0xc2,0x8e,0x08,0xed,0x27,0x24,0xd2,0xbe,0xb8,0xe4,0x45,0x39,0xba,0x38}, + "", + "", + "" + }, + 0, {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, /* labels */ + /* expected output data (pubkeys and seckey tweaks) */ + 1, + { + {0xf4,0xc2,0xda,0x80,0x7f,0x89,0xcb,0x15,0x01,0xf1,0xa7,0x73,0x22,0xa8,0x95,0xac,0xfb,0x93,0xc2,0x8e,0x08,0xed,0x27,0x24,0xd2,0xbe,0xb8,0xe4,0x45,0x39,0xba,0x38}, + "", + "", + "" + }, + { + {0xab,0x0c,0x9b,0x87,0x18,0x1b,0xf5,0x27,0x87,0x9f,0x48,0xdb,0x9f,0x14,0xa0,0x22,0x33,0x61,0x9b,0x98,0x6f,0x8e,0x8f,0x2d,0x5d,0x40,0x8c,0xe6,0x8a,0x70,0x9f,0x51}, + "", + "", + "" + }, + { + {0x39,0x8a,0x97,0x90,0x86,0x57,0x91,0xa9,0xdb,0x41,0xa8,0x01,0x5a,0xfa,0xd3,0xa4,0x7d,0x60,0xfe,0xc5,0x08,0x6c,0x50,0x55,0x78,0x06,0xa4,0x9a,0x1b,0xc0,0x38,0x80,0x86,0x32,0xb8,0xfe,0x67,0x9a,0x7b,0xb6,0x5f,0xc6,0xb4,0x55,0xbe,0x99,0x45,0x02,0xee,0xd8,0x49,0xf1,0xda,0x37,0x29,0xcd,0x94,0x8f,0xc7,0xbe,0x73,0xd6,0x72,0x95}, + "", + "", + "" + } + }, + + /* ----- Outpoint ordering byte-lexicographically vs. vout-integer (5) ----- */ + { + 2, + { /* input plain seckeys */ + {0xea,0xdc,0x78,0x16,0x5f,0xf1,0xf8,0xea,0x94,0xad,0x7c,0xfd,0xc5,0x49,0x90,0x73,0x8a,0x4c,0x53,0xf6,0xe0,0x50,0x7b,0x42,0x15,0x42,0x01,0xb8,0xe5,0xdf,0xf3,0xb1}, + {0x93,0xf5,0xed,0x90,0x7a,0xd5,0xb2,0xbd,0xbb,0xdc,0xb5,0xd9,0x11,0x6e,0xbc,0x0a,0x4e,0x1f,0x92,0xf9,0x10,0xd5,0x26,0x02,0x37,0xfa,0x45,0xa9,0x40,0x8a,0xad,0x16}, + "" + }, + { /* input plain pubkeys */ + {0x02,0x5a,0x1e,0x61,0xf8,0x98,0x17,0x30,0x40,0xe2,0x06,0x16,0xd4,0x3e,0x9f,0x49,0x6f,0xba,0x90,0x33,0x8a,0x39,0xfa,0xa1,0xed,0x98,0xfc,0xba,0xee,0xe4,0xdd,0x9b,0xe5}, + {0x03,0xbd,0x85,0x68,0x5d,0x03,0xd1,0x11,0x69,0x9b,0x15,0xd0,0x46,0x31,0x9f,0xeb,0xe7,0x7f,0x8d,0xe5,0x28,0x6e,0x9e,0x51,0x27,0x03,0xcd,0xee,0x1b,0xf3,0xbe,0x37,0x92}, + "" + }, + 0, + { /* input taproot seckeys */ + "", + "", + "" + }, + { /* input x-only pubkeys */ + "", + "", + "" + }, + /* smallest outpoint */ + {0x16,0x9e,0x1e,0x83,0xe9,0x30,0x85,0x33,0x91,0xbc,0x6f,0x35,0xf6,0x05,0xc6,0x75,0x4c,0xfe,0xad,0x57,0xcf,0x83,0x87,0x63,0x9d,0x3b,0x40,0x96,0xc5,0x4f,0x18,0xf4,0x00,0x01,0x00,0x00}, + 1, + { /* recipient pubkeys (address data) */ + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x02,0x5c,0xc9,0x85,0x6d,0x6f,0x83,0x75,0x35,0x0e,0x12,0x39,0x78,0xda,0xac,0x20,0x0c,0x26,0x0c,0xb5,0xb5,0xae,0x83,0x10,0x6c,0xab,0x90,0x48,0x4d,0xcd,0x8f,0xcf,0x36}, + }, + { + "", + "", + }, + { + "", + "", + }, + { + "", + "", + } + }, + 1, + 1, + { /* recipient outputs */ + { + {0xa8,0x5e,0xf8,0x70,0x13,0x94,0xb5,0x17,0xa4,0xb3,0x52,0x17,0xc4,0xbd,0x37,0xac,0x01,0xeb,0xee,0xd4,0xb0,0x08,0xf8,0xd0,0x87,0x9f,0x9e,0x09,0xba,0x95,0x31,0x9c}, + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + }, + /* recipient data (scan and spend seckeys) */ + {0x0f,0x69,0x4e,0x06,0x80,0x28,0xa7,0x17,0xf8,0xaf,0x6b,0x94,0x11,0xf9,0xa1,0x33,0xdd,0x35,0x65,0x25,0x87,0x14,0xcc,0x22,0x65,0x94,0xb3,0x4d,0xb9,0x0c,0x1f,0x2c}, + {0x9d,0x6a,0xd8,0x55,0xce,0x34,0x17,0xef,0x84,0xe8,0x36,0x89,0x2e,0x5a,0x56,0x39,0x2b,0xfb,0xa0,0x5f,0xa5,0xd9,0x7c,0xce,0xa3,0x0e,0x26,0x6f,0x54,0x0e,0x08,0xb3}, + 1, + { /* outputs to scan */ + {0xa8,0x5e,0xf8,0x70,0x13,0x94,0xb5,0x17,0xa4,0xb3,0x52,0x17,0xc4,0xbd,0x37,0xac,0x01,0xeb,0xee,0xd4,0xb0,0x08,0xf8,0xd0,0x87,0x9f,0x9e,0x09,0xba,0x95,0x31,0x9c}, + "", + "", + "" + }, + 0, {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, /* labels */ + /* expected output data (pubkeys and seckey tweaks) */ + 1, + { + {0xa8,0x5e,0xf8,0x70,0x13,0x94,0xb5,0x17,0xa4,0xb3,0x52,0x17,0xc4,0xbd,0x37,0xac,0x01,0xeb,0xee,0xd4,0xb0,0x08,0xf8,0xd0,0x87,0x9f,0x9e,0x09,0xba,0x95,0x31,0x9c}, + "", + "", + "" + }, + { + {0xc8,0xac,0x02,0x92,0x99,0x7b,0x5b,0xca,0x98,0xb3,0xeb,0xd9,0x9a,0x57,0xe2,0x53,0x07,0x11,0x37,0x55,0x0f,0x27,0x04,0x52,0xcd,0x3d,0xf8,0xa3,0xe2,0x26,0x6d,0x36}, + "", + "", + "" + }, + { + {0xc0,0x36,0xee,0x38,0xbf,0xe4,0x6a,0xba,0x03,0x23,0x43,0x39,0xae,0x72,0x19,0xb3,0x1b,0x82,0x4b,0x52,0xef,0x9d,0x5c,0xe0,0x58,0x10,0xa0,0xd6,0xf6,0x23,0x30,0xde,0xdc,0x2b,0x55,0x65,0x25,0x78,0xaa,0x5b,0xda,0xbf,0x93,0x0f,0xae,0x94,0x1a,0xcd,0x83,0x9d,0x5a,0x66,0xf8,0xfc,0xe7,0xca,0xa9,0x71,0x0c,0xcb,0x44,0x6b,0xdd,0xd1}, + "", + "", + "" + } + }, + + /* ----- Single recipient: multiple UTXOs from the same public key (6) ----- */ + { + 2, + { /* input plain seckeys */ + {0xea,0xdc,0x78,0x16,0x5f,0xf1,0xf8,0xea,0x94,0xad,0x7c,0xfd,0xc5,0x49,0x90,0x73,0x8a,0x4c,0x53,0xf6,0xe0,0x50,0x7b,0x42,0x15,0x42,0x01,0xb8,0xe5,0xdf,0xf3,0xb1}, + {0xea,0xdc,0x78,0x16,0x5f,0xf1,0xf8,0xea,0x94,0xad,0x7c,0xfd,0xc5,0x49,0x90,0x73,0x8a,0x4c,0x53,0xf6,0xe0,0x50,0x7b,0x42,0x15,0x42,0x01,0xb8,0xe5,0xdf,0xf3,0xb1}, + "" + }, + { /* input plain pubkeys */ + {0x02,0x5a,0x1e,0x61,0xf8,0x98,0x17,0x30,0x40,0xe2,0x06,0x16,0xd4,0x3e,0x9f,0x49,0x6f,0xba,0x90,0x33,0x8a,0x39,0xfa,0xa1,0xed,0x98,0xfc,0xba,0xee,0xe4,0xdd,0x9b,0xe5}, + {0x02,0x5a,0x1e,0x61,0xf8,0x98,0x17,0x30,0x40,0xe2,0x06,0x16,0xd4,0x3e,0x9f,0x49,0x6f,0xba,0x90,0x33,0x8a,0x39,0xfa,0xa1,0xed,0x98,0xfc,0xba,0xee,0xe4,0xdd,0x9b,0xe5}, + "" + }, + 0, + { /* input taproot seckeys */ + "", + "", + "" + }, + { /* input x-only pubkeys */ + "", + "", + "" + }, + /* smallest outpoint */ + {0x16,0x9e,0x1e,0x83,0xe9,0x30,0x85,0x33,0x91,0xbc,0x6f,0x35,0xf6,0x05,0xc6,0x75,0x4c,0xfe,0xad,0x57,0xcf,0x83,0x87,0x63,0x9d,0x3b,0x40,0x96,0xc5,0x4f,0x18,0xf4,0x00,0x00,0x00,0x00}, + 1, + { /* recipient pubkeys (address data) */ + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x02,0x5c,0xc9,0x85,0x6d,0x6f,0x83,0x75,0x35,0x0e,0x12,0x39,0x78,0xda,0xac,0x20,0x0c,0x26,0x0c,0xb5,0xb5,0xae,0x83,0x10,0x6c,0xab,0x90,0x48,0x4d,0xcd,0x8f,0xcf,0x36}, + }, + { + "", + "", + }, + { + "", + "", + }, + { + "", + "", + } + }, + 1, + 1, + { /* recipient outputs */ + { + {0x54,0x8a,0xe5,0x5c,0x8e,0xec,0x1e,0x73,0x6e,0x8d,0x3e,0x52,0x0f,0x01,0x1f,0x1f,0x42,0xa5,0x6d,0x16,0x61,0x16,0xad,0x21,0x0b,0x39,0x37,0x59,0x9f,0x87,0xf5,0x66}, + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + }, + /* recipient data (scan and spend seckeys) */ + {0x0f,0x69,0x4e,0x06,0x80,0x28,0xa7,0x17,0xf8,0xaf,0x6b,0x94,0x11,0xf9,0xa1,0x33,0xdd,0x35,0x65,0x25,0x87,0x14,0xcc,0x22,0x65,0x94,0xb3,0x4d,0xb9,0x0c,0x1f,0x2c}, + {0x9d,0x6a,0xd8,0x55,0xce,0x34,0x17,0xef,0x84,0xe8,0x36,0x89,0x2e,0x5a,0x56,0x39,0x2b,0xfb,0xa0,0x5f,0xa5,0xd9,0x7c,0xce,0xa3,0x0e,0x26,0x6f,0x54,0x0e,0x08,0xb3}, + 1, + { /* outputs to scan */ + {0x54,0x8a,0xe5,0x5c,0x8e,0xec,0x1e,0x73,0x6e,0x8d,0x3e,0x52,0x0f,0x01,0x1f,0x1f,0x42,0xa5,0x6d,0x16,0x61,0x16,0xad,0x21,0x0b,0x39,0x37,0x59,0x9f,0x87,0xf5,0x66}, + "", + "", + "" + }, + 0, {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, /* labels */ + /* expected output data (pubkeys and seckey tweaks) */ + 1, + { + {0x54,0x8a,0xe5,0x5c,0x8e,0xec,0x1e,0x73,0x6e,0x8d,0x3e,0x52,0x0f,0x01,0x1f,0x1f,0x42,0xa5,0x6d,0x16,0x61,0x16,0xad,0x21,0x0b,0x39,0x37,0x59,0x9f,0x87,0xf5,0x66}, + "", + "", + "" + }, + { + {0xf0,0x32,0x69,0x5e,0x26,0x36,0x61,0x9e,0xfa,0x52,0x3f,0xff,0xaa,0x9e,0xf9,0x3c,0x88,0x02,0x29,0x91,0x81,0xfd,0x04,0x61,0x91,0x3c,0x1b,0x8d,0xaf,0x97,0x84,0xcd}, + "", + "", + "" + }, + { + {0xf2,0x38,0x38,0x6c,0x5d,0x5e,0x54,0x44,0xf8,0xd2,0xc7,0x5a,0xab,0xbc,0xb2,0x8c,0x34,0x6f,0x20,0x8c,0x76,0xf6,0x08,0x23,0xf5,0xde,0x3b,0x67,0xb7,0x9e,0x0e,0xc7,0x2e,0xa5,0xde,0x2d,0x7c,0xae,0xc3,0x14,0xe0,0x97,0x1d,0x34,0x54,0xf1,0x22,0xdd,0xa3,0x42,0xb3,0xee,0xde,0x01,0xb3,0x85,0x7e,0x83,0x65,0x4e,0x36,0xb2,0x5f,0x76}, + "", + "", + "" + } + }, + + /* ----- Single recipient: taproot only inputs with even y-values (7) ----- */ + { + 0, + { /* input plain seckeys */ + "", + "", + "" + }, + { /* input plain pubkeys */ + "", + "", + "" + }, + 2, + { /* input taproot seckeys */ + {0xea,0xdc,0x78,0x16,0x5f,0xf1,0xf8,0xea,0x94,0xad,0x7c,0xfd,0xc5,0x49,0x90,0x73,0x8a,0x4c,0x53,0xf6,0xe0,0x50,0x7b,0x42,0x15,0x42,0x01,0xb8,0xe5,0xdf,0xf3,0xb1}, + {0xfc,0x87,0x16,0xa9,0x7a,0x48,0xba,0x9a,0x05,0xa9,0x8a,0xe4,0x7b,0x5c,0xd2,0x01,0xa2,0x5a,0x7f,0xd5,0xd8,0xb7,0x3c,0x20,0x3c,0x5f,0x7b,0x6b,0x6b,0x3b,0x6a,0xd7}, + "" + }, + { /* input x-only pubkeys */ + {0x5a,0x1e,0x61,0xf8,0x98,0x17,0x30,0x40,0xe2,0x06,0x16,0xd4,0x3e,0x9f,0x49,0x6f,0xba,0x90,0x33,0x8a,0x39,0xfa,0xa1,0xed,0x98,0xfc,0xba,0xee,0xe4,0xdd,0x9b,0xe5}, + {0x78,0x2e,0xeb,0x91,0x34,0x31,0xca,0x6e,0x9b,0x8c,0x2f,0xd8,0x0a,0x5f,0x72,0xed,0x20,0x24,0xef,0x72,0xa3,0xc6,0xfb,0x10,0x26,0x3c,0x37,0x99,0x37,0x32,0x33,0x38}, + "" + }, + /* smallest outpoint */ + {0x16,0x9e,0x1e,0x83,0xe9,0x30,0x85,0x33,0x91,0xbc,0x6f,0x35,0xf6,0x05,0xc6,0x75,0x4c,0xfe,0xad,0x57,0xcf,0x83,0x87,0x63,0x9d,0x3b,0x40,0x96,0xc5,0x4f,0x18,0xf4,0x00,0x00,0x00,0x00}, + 1, + { /* recipient pubkeys (address data) */ + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x02,0x5c,0xc9,0x85,0x6d,0x6f,0x83,0x75,0x35,0x0e,0x12,0x39,0x78,0xda,0xac,0x20,0x0c,0x26,0x0c,0xb5,0xb5,0xae,0x83,0x10,0x6c,0xab,0x90,0x48,0x4d,0xcd,0x8f,0xcf,0x36}, + }, + { + "", + "", + }, + { + "", + "", + }, + { + "", + "", + } + }, + 1, + 1, + { /* recipient outputs */ + { + {0xde,0x88,0xbe,0xa8,0xe7,0xff,0xc9,0xce,0x1a,0xf3,0x0d,0x11,0x32,0xf9,0x10,0x32,0x3c,0x50,0x51,0x85,0xae,0xc8,0xea,0xe3,0x61,0x67,0x04,0x21,0xe7,0x49,0xa1,0xfb}, + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + }, + /* recipient data (scan and spend seckeys) */ + {0x0f,0x69,0x4e,0x06,0x80,0x28,0xa7,0x17,0xf8,0xaf,0x6b,0x94,0x11,0xf9,0xa1,0x33,0xdd,0x35,0x65,0x25,0x87,0x14,0xcc,0x22,0x65,0x94,0xb3,0x4d,0xb9,0x0c,0x1f,0x2c}, + {0x9d,0x6a,0xd8,0x55,0xce,0x34,0x17,0xef,0x84,0xe8,0x36,0x89,0x2e,0x5a,0x56,0x39,0x2b,0xfb,0xa0,0x5f,0xa5,0xd9,0x7c,0xce,0xa3,0x0e,0x26,0x6f,0x54,0x0e,0x08,0xb3}, + 1, + { /* outputs to scan */ + {0xde,0x88,0xbe,0xa8,0xe7,0xff,0xc9,0xce,0x1a,0xf3,0x0d,0x11,0x32,0xf9,0x10,0x32,0x3c,0x50,0x51,0x85,0xae,0xc8,0xea,0xe3,0x61,0x67,0x04,0x21,0xe7,0x49,0xa1,0xfb}, + "", + "", + "" + }, + 0, {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, /* labels */ + /* expected output data (pubkeys and seckey tweaks) */ + 1, + { + {0xde,0x88,0xbe,0xa8,0xe7,0xff,0xc9,0xce,0x1a,0xf3,0x0d,0x11,0x32,0xf9,0x10,0x32,0x3c,0x50,0x51,0x85,0xae,0xc8,0xea,0xe3,0x61,0x67,0x04,0x21,0xe7,0x49,0xa1,0xfb}, + "", + "", + "" + }, + { + {0x3f,0xb9,0xce,0x5c,0xe1,0x74,0x6c,0xed,0x10,0x3c,0x8e,0xd2,0x54,0xe8,0x1f,0x66,0x90,0x76,0x46,0x37,0xdd,0xbc,0x87,0x6e,0xc1,0xf9,0xb3,0xdd,0xab,0x77,0x6b,0x03}, + "", + "", + "" + }, + { + {0xc5,0xac,0xd2,0x5a,0x8f,0x02,0x1a,0x41,0x92,0xf9,0x3b,0xc3,0x44,0x03,0xfd,0x8b,0x76,0x48,0x46,0x13,0x46,0x63,0x36,0xfb,0x25,0x9c,0x72,0xd0,0x4c,0x16,0x98,0x24,0xf2,0x69,0x0c,0xa3,0x4e,0x96,0xce,0xe8,0x6b,0x69,0xf3,0x76,0xc8,0x37,0x70,0x03,0x26,0x8f,0xda,0x56,0xfe,0xeb,0x1b,0x87,0x3e,0x57,0x83,0xd7,0xe1,0x9b,0xcc,0xa5}, + "", + "", + "" + } + }, + + /* ----- Single recipient: taproot only with mixed even/odd y-values (8) ----- */ + { + 0, + { /* input plain seckeys */ + "", + "", + "" + }, + { /* input plain pubkeys */ + "", + "", + "" + }, + 2, + { /* input taproot seckeys */ + {0xea,0xdc,0x78,0x16,0x5f,0xf1,0xf8,0xea,0x94,0xad,0x7c,0xfd,0xc5,0x49,0x90,0x73,0x8a,0x4c,0x53,0xf6,0xe0,0x50,0x7b,0x42,0x15,0x42,0x01,0xb8,0xe5,0xdf,0xf3,0xb1}, + {0x1d,0x37,0x78,0x7c,0x2b,0x71,0x16,0xee,0x98,0x3e,0x9f,0x9c,0x13,0x26,0x9d,0xf2,0x90,0x91,0xb3,0x91,0xc0,0x4d,0xb9,0x42,0x39,0xe0,0xd2,0xbc,0x21,0x82,0xc3,0xbf}, + "" + }, + { /* input x-only pubkeys */ + {0x5a,0x1e,0x61,0xf8,0x98,0x17,0x30,0x40,0xe2,0x06,0x16,0xd4,0x3e,0x9f,0x49,0x6f,0xba,0x90,0x33,0x8a,0x39,0xfa,0xa1,0xed,0x98,0xfc,0xba,0xee,0xe4,0xdd,0x9b,0xe5}, + {0x8c,0x8d,0x23,0xd4,0x76,0x4f,0xef,0xfc,0xd5,0xe7,0x2e,0x38,0x08,0x02,0x54,0x0f,0xa0,0xf8,0x8e,0x3d,0x62,0xad,0x5e,0x0b,0x47,0x95,0x5f,0x74,0xd7,0xb2,0x83,0xc4}, + "" + }, + /* smallest outpoint */ + {0x16,0x9e,0x1e,0x83,0xe9,0x30,0x85,0x33,0x91,0xbc,0x6f,0x35,0xf6,0x05,0xc6,0x75,0x4c,0xfe,0xad,0x57,0xcf,0x83,0x87,0x63,0x9d,0x3b,0x40,0x96,0xc5,0x4f,0x18,0xf4,0x00,0x00,0x00,0x00}, + 1, + { /* recipient pubkeys (address data) */ + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x02,0x5c,0xc9,0x85,0x6d,0x6f,0x83,0x75,0x35,0x0e,0x12,0x39,0x78,0xda,0xac,0x20,0x0c,0x26,0x0c,0xb5,0xb5,0xae,0x83,0x10,0x6c,0xab,0x90,0x48,0x4d,0xcd,0x8f,0xcf,0x36}, + }, + { + "", + "", + }, + { + "", + "", + }, + { + "", + "", + } + }, + 1, + 1, + { /* recipient outputs */ + { + {0x77,0xca,0xb7,0xdd,0x12,0xb1,0x02,0x59,0xee,0x82,0xc6,0xea,0x4b,0x50,0x97,0x74,0xe3,0x3e,0x70,0x78,0xe7,0x13,0x8f,0x56,0x80,0x92,0x24,0x1b,0xf2,0x6b,0x99,0xf1}, + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + }, + /* recipient data (scan and spend seckeys) */ + {0x0f,0x69,0x4e,0x06,0x80,0x28,0xa7,0x17,0xf8,0xaf,0x6b,0x94,0x11,0xf9,0xa1,0x33,0xdd,0x35,0x65,0x25,0x87,0x14,0xcc,0x22,0x65,0x94,0xb3,0x4d,0xb9,0x0c,0x1f,0x2c}, + {0x9d,0x6a,0xd8,0x55,0xce,0x34,0x17,0xef,0x84,0xe8,0x36,0x89,0x2e,0x5a,0x56,0x39,0x2b,0xfb,0xa0,0x5f,0xa5,0xd9,0x7c,0xce,0xa3,0x0e,0x26,0x6f,0x54,0x0e,0x08,0xb3}, + 1, + { /* outputs to scan */ + {0x77,0xca,0xb7,0xdd,0x12,0xb1,0x02,0x59,0xee,0x82,0xc6,0xea,0x4b,0x50,0x97,0x74,0xe3,0x3e,0x70,0x78,0xe7,0x13,0x8f,0x56,0x80,0x92,0x24,0x1b,0xf2,0x6b,0x99,0xf1}, + "", + "", + "" + }, + 0, {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, /* labels */ + /* expected output data (pubkeys and seckey tweaks) */ + 1, + { + {0x77,0xca,0xb7,0xdd,0x12,0xb1,0x02,0x59,0xee,0x82,0xc6,0xea,0x4b,0x50,0x97,0x74,0xe3,0x3e,0x70,0x78,0xe7,0x13,0x8f,0x56,0x80,0x92,0x24,0x1b,0xf2,0x6b,0x99,0xf1}, + "", + "", + "" + }, + { + {0xf5,0x38,0x25,0x08,0x60,0x97,0x71,0x06,0x8e,0xd0,0x79,0xb2,0x4e,0x1f,0x72,0xe4,0xa1,0x7e,0xe6,0xd1,0xc9,0x79,0x06,0x6b,0xf1,0xd4,0xe2,0xa5,0x67,0x6f,0x09,0xd4}, + "", + "", + "" + }, + { + {0xff,0x65,0x83,0x3b,0x8f,0xd1,0xed,0x3e,0xf9,0xd0,0x44,0x3b,0x4f,0x70,0x2b,0x45,0xa3,0xf2,0xdd,0x45,0x7b,0xa2,0x47,0x68,0x7e,0x82,0x07,0x74,0x5c,0x3b,0xe9,0xd2,0xbd,0xad,0x0a,0xb3,0xf0,0x71,0x18,0xf8,0xb2,0xef,0xc6,0xa0,0x4b,0x95,0xf7,0xb3,0xe2,0x18,0xda,0xf8,0xa6,0x41,0x37,0xec,0x91,0xbd,0x2f,0xc6,0x7f,0xc1,0x37,0xa5}, + "", + "", + "" + } + }, + + /* ----- Single recipient: taproot input with even y-value and non-taproot input (9) ----- */ + { + 1, + { /* input plain seckeys */ + {0x8d,0x47,0x51,0xf6,0xe8,0xa3,0x58,0x68,0x80,0xfb,0x66,0xc1,0x9a,0xe2,0x77,0x96,0x9b,0xd5,0xaa,0x06,0xf6,0x1c,0x4e,0xe2,0xf1,0xe2,0x48,0x6e,0xfd,0xf6,0x66,0xd3}, + "", + "" + }, + { /* input plain pubkeys */ + {0x03,0xe0,0xec,0x4f,0x64,0xb3,0xfa,0x2e,0x46,0x3c,0xcf,0xcf,0x4e,0x85,0x6e,0x37,0xd5,0xe1,0xe2,0x02,0x75,0xbc,0x89,0xec,0x1d,0xef,0x9e,0xb0,0x98,0xef,0xf1,0xf8,0x5d}, + "", + "" + }, + 1, + { /* input taproot seckeys */ + {0xea,0xdc,0x78,0x16,0x5f,0xf1,0xf8,0xea,0x94,0xad,0x7c,0xfd,0xc5,0x49,0x90,0x73,0x8a,0x4c,0x53,0xf6,0xe0,0x50,0x7b,0x42,0x15,0x42,0x01,0xb8,0xe5,0xdf,0xf3,0xb1}, + "", + "" + }, + { /* input x-only pubkeys */ + {0x5a,0x1e,0x61,0xf8,0x98,0x17,0x30,0x40,0xe2,0x06,0x16,0xd4,0x3e,0x9f,0x49,0x6f,0xba,0x90,0x33,0x8a,0x39,0xfa,0xa1,0xed,0x98,0xfc,0xba,0xee,0xe4,0xdd,0x9b,0xe5}, + "", + "" + }, + /* smallest outpoint */ + {0x16,0x9e,0x1e,0x83,0xe9,0x30,0x85,0x33,0x91,0xbc,0x6f,0x35,0xf6,0x05,0xc6,0x75,0x4c,0xfe,0xad,0x57,0xcf,0x83,0x87,0x63,0x9d,0x3b,0x40,0x96,0xc5,0x4f,0x18,0xf4,0x00,0x00,0x00,0x00}, + 1, + { /* recipient pubkeys (address data) */ + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x02,0x5c,0xc9,0x85,0x6d,0x6f,0x83,0x75,0x35,0x0e,0x12,0x39,0x78,0xda,0xac,0x20,0x0c,0x26,0x0c,0xb5,0xb5,0xae,0x83,0x10,0x6c,0xab,0x90,0x48,0x4d,0xcd,0x8f,0xcf,0x36}, + }, + { + "", + "", + }, + { + "", + "", + }, + { + "", + "", + } + }, + 1, + 1, + { /* recipient outputs */ + { + {0x30,0x52,0x3c,0xca,0x96,0xb2,0xa9,0xae,0x3c,0x98,0xbe,0xb5,0xe6,0x0f,0x7d,0x19,0x0e,0xc5,0xbc,0x79,0xb2,0xd1,0x1a,0x0b,0x2d,0x4d,0x09,0xa6,0x08,0xc4,0x48,0xf0}, + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + }, + /* recipient data (scan and spend seckeys) */ + {0x0f,0x69,0x4e,0x06,0x80,0x28,0xa7,0x17,0xf8,0xaf,0x6b,0x94,0x11,0xf9,0xa1,0x33,0xdd,0x35,0x65,0x25,0x87,0x14,0xcc,0x22,0x65,0x94,0xb3,0x4d,0xb9,0x0c,0x1f,0x2c}, + {0x9d,0x6a,0xd8,0x55,0xce,0x34,0x17,0xef,0x84,0xe8,0x36,0x89,0x2e,0x5a,0x56,0x39,0x2b,0xfb,0xa0,0x5f,0xa5,0xd9,0x7c,0xce,0xa3,0x0e,0x26,0x6f,0x54,0x0e,0x08,0xb3}, + 1, + { /* outputs to scan */ + {0x30,0x52,0x3c,0xca,0x96,0xb2,0xa9,0xae,0x3c,0x98,0xbe,0xb5,0xe6,0x0f,0x7d,0x19,0x0e,0xc5,0xbc,0x79,0xb2,0xd1,0x1a,0x0b,0x2d,0x4d,0x09,0xa6,0x08,0xc4,0x48,0xf0}, + "", + "", + "" + }, + 0, {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, /* labels */ + /* expected output data (pubkeys and seckey tweaks) */ + 1, + { + {0x30,0x52,0x3c,0xca,0x96,0xb2,0xa9,0xae,0x3c,0x98,0xbe,0xb5,0xe6,0x0f,0x7d,0x19,0x0e,0xc5,0xbc,0x79,0xb2,0xd1,0x1a,0x0b,0x2d,0x4d,0x09,0xa6,0x08,0xc4,0x48,0xf0}, + "", + "", + "" + }, + { + {0xb4,0x00,0x17,0x86,0x5c,0x79,0xb1,0xfc,0xbe,0xd6,0x88,0x96,0x79,0x1b,0xe9,0x31,0x86,0xd0,0x8f,0x47,0xe4,0x16,0xb2,0x89,0xb8,0xc0,0x63,0x77,0x7e,0x14,0xe8,0xdf}, + "", + "", + "" + }, + { + {0xd1,0xed,0xee,0xa2,0x8c,0xf1,0x03,0x3b,0xcb,0x3d,0x89,0x37,0x6c,0xab,0xaa,0xaa,0x28,0x86,0xcb,0xd8,0xfd,0xa1,0x12,0xb5,0xc6,0x1c,0xc9,0x0a,0x4e,0x7f,0x18,0x78,0xbd,0xd6,0x21,0x80,0xb0,0x7d,0x1d,0xfc,0x8f,0xfe,0xe1,0x86,0x3c,0x52,0x5a,0x0c,0x7b,0x5b,0xcd,0x41,0x31,0x83,0x28,0x2c,0xfd,0xa7,0x56,0xcb,0x65,0x78,0x72,0x66}, + "", + "", + "" + } + }, + + /* ----- Single recipient: taproot input with odd y-value and non-taproot input (10) ----- */ + { + 1, + { /* input plain seckeys */ + {0x8d,0x47,0x51,0xf6,0xe8,0xa3,0x58,0x68,0x80,0xfb,0x66,0xc1,0x9a,0xe2,0x77,0x96,0x9b,0xd5,0xaa,0x06,0xf6,0x1c,0x4e,0xe2,0xf1,0xe2,0x48,0x6e,0xfd,0xf6,0x66,0xd3}, + "", + "" + }, + { /* input plain pubkeys */ + {0x03,0xe0,0xec,0x4f,0x64,0xb3,0xfa,0x2e,0x46,0x3c,0xcf,0xcf,0x4e,0x85,0x6e,0x37,0xd5,0xe1,0xe2,0x02,0x75,0xbc,0x89,0xec,0x1d,0xef,0x9e,0xb0,0x98,0xef,0xf1,0xf8,0x5d}, + "", + "" + }, + 1, + { /* input taproot seckeys */ + {0x1d,0x37,0x78,0x7c,0x2b,0x71,0x16,0xee,0x98,0x3e,0x9f,0x9c,0x13,0x26,0x9d,0xf2,0x90,0x91,0xb3,0x91,0xc0,0x4d,0xb9,0x42,0x39,0xe0,0xd2,0xbc,0x21,0x82,0xc3,0xbf}, + "", + "" + }, + { /* input x-only pubkeys */ + {0x8c,0x8d,0x23,0xd4,0x76,0x4f,0xef,0xfc,0xd5,0xe7,0x2e,0x38,0x08,0x02,0x54,0x0f,0xa0,0xf8,0x8e,0x3d,0x62,0xad,0x5e,0x0b,0x47,0x95,0x5f,0x74,0xd7,0xb2,0x83,0xc4}, + "", + "" + }, + /* smallest outpoint */ + {0x16,0x9e,0x1e,0x83,0xe9,0x30,0x85,0x33,0x91,0xbc,0x6f,0x35,0xf6,0x05,0xc6,0x75,0x4c,0xfe,0xad,0x57,0xcf,0x83,0x87,0x63,0x9d,0x3b,0x40,0x96,0xc5,0x4f,0x18,0xf4,0x00,0x00,0x00,0x00}, + 1, + { /* recipient pubkeys (address data) */ + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x02,0x5c,0xc9,0x85,0x6d,0x6f,0x83,0x75,0x35,0x0e,0x12,0x39,0x78,0xda,0xac,0x20,0x0c,0x26,0x0c,0xb5,0xb5,0xae,0x83,0x10,0x6c,0xab,0x90,0x48,0x4d,0xcd,0x8f,0xcf,0x36}, + }, + { + "", + "", + }, + { + "", + "", + }, + { + "", + "", + } + }, + 1, + 1, + { /* recipient outputs */ + { + {0x35,0x93,0x58,0xf5,0x9e,0xe9,0xe9,0xee,0xc3,0xf0,0x0b,0xdf,0x48,0x82,0x57,0x0f,0xd5,0xc1,0x82,0xe4,0x51,0xaa,0x26,0x50,0xb7,0x88,0x54,0x4a,0xff,0x01,0x2a,0x3a}, + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + }, + /* recipient data (scan and spend seckeys) */ + {0x0f,0x69,0x4e,0x06,0x80,0x28,0xa7,0x17,0xf8,0xaf,0x6b,0x94,0x11,0xf9,0xa1,0x33,0xdd,0x35,0x65,0x25,0x87,0x14,0xcc,0x22,0x65,0x94,0xb3,0x4d,0xb9,0x0c,0x1f,0x2c}, + {0x9d,0x6a,0xd8,0x55,0xce,0x34,0x17,0xef,0x84,0xe8,0x36,0x89,0x2e,0x5a,0x56,0x39,0x2b,0xfb,0xa0,0x5f,0xa5,0xd9,0x7c,0xce,0xa3,0x0e,0x26,0x6f,0x54,0x0e,0x08,0xb3}, + 1, + { /* outputs to scan */ + {0x35,0x93,0x58,0xf5,0x9e,0xe9,0xe9,0xee,0xc3,0xf0,0x0b,0xdf,0x48,0x82,0x57,0x0f,0xd5,0xc1,0x82,0xe4,0x51,0xaa,0x26,0x50,0xb7,0x88,0x54,0x4a,0xff,0x01,0x2a,0x3a}, + "", + "", + "" + }, + 0, {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, /* labels */ + /* expected output data (pubkeys and seckey tweaks) */ + 1, + { + {0x35,0x93,0x58,0xf5,0x9e,0xe9,0xe9,0xee,0xc3,0xf0,0x0b,0xdf,0x48,0x82,0x57,0x0f,0xd5,0xc1,0x82,0xe4,0x51,0xaa,0x26,0x50,0xb7,0x88,0x54,0x4a,0xff,0x01,0x2a,0x3a}, + "", + "", + "" + }, + { + {0xa2,0xf9,0xdd,0x05,0xd1,0xd3,0x98,0x34,0x7c,0x88,0x5d,0x9c,0x61,0xa6,0x4d,0x18,0xa2,0x64,0xde,0x6d,0x49,0xce,0xa4,0x32,0x6b,0xaf,0xc2,0x79,0x1d,0x62,0x7f,0xa7}, + "", + "", + "" + }, + { + {0x96,0x03,0x8a,0xd2,0x33,0xd8,0xbe,0xfe,0x34,0x25,0x73,0xa6,0xe5,0x48,0x28,0xd8,0x63,0x47,0x1f,0xb2,0xaf,0xba,0xd5,0x75,0xcc,0x65,0x27,0x1a,0x2a,0x64,0x94,0x80,0xea,0x14,0x91,0x2b,0x6a,0xbb,0xd3,0xfb,0xf9,0x2e,0xfc,0x19,0x28,0xc0,0x36,0xf6,0xe3,0xee,0xf9,0x27,0x10,0x5a,0xf4,0xec,0x1d,0xd5,0x7c,0xb9,0x09,0xf3,0x60,0xb8}, + "", + "", + "" + } + }, + + /* ----- Multiple outputs: multiple outputs, same recipient (11) ----- */ + { + 2, + { /* input plain seckeys */ + {0xea,0xdc,0x78,0x16,0x5f,0xf1,0xf8,0xea,0x94,0xad,0x7c,0xfd,0xc5,0x49,0x90,0x73,0x8a,0x4c,0x53,0xf6,0xe0,0x50,0x7b,0x42,0x15,0x42,0x01,0xb8,0xe5,0xdf,0xf3,0xb1}, + {0x03,0x78,0xe9,0x56,0x85,0xb7,0x45,0x65,0xfa,0x56,0x75,0x1b,0x84,0xa3,0x2d,0xfd,0x18,0x54,0x5d,0x10,0xd6,0x91,0x64,0x1b,0x83,0x72,0xe3,0x21,0x64,0xfa,0xd6,0x6a}, + "" + }, + { /* input plain pubkeys */ + {0x02,0x5a,0x1e,0x61,0xf8,0x98,0x17,0x30,0x40,0xe2,0x06,0x16,0xd4,0x3e,0x9f,0x49,0x6f,0xba,0x90,0x33,0x8a,0x39,0xfa,0xa1,0xed,0x98,0xfc,0xba,0xee,0xe4,0xdd,0x9b,0xe5}, + {0x03,0x78,0x2e,0xeb,0x91,0x34,0x31,0xca,0x6e,0x9b,0x8c,0x2f,0xd8,0x0a,0x5f,0x72,0xed,0x20,0x24,0xef,0x72,0xa3,0xc6,0xfb,0x10,0x26,0x3c,0x37,0x99,0x37,0x32,0x33,0x38}, + "" + }, + 0, + { /* input taproot seckeys */ + "", + "", + "" + }, + { /* input x-only pubkeys */ + "", + "", + "" + }, + /* smallest outpoint */ + {0x16,0x9e,0x1e,0x83,0xe9,0x30,0x85,0x33,0x91,0xbc,0x6f,0x35,0xf6,0x05,0xc6,0x75,0x4c,0xfe,0xad,0x57,0xcf,0x83,0x87,0x63,0x9d,0x3b,0x40,0x96,0xc5,0x4f,0x18,0xf4,0x00,0x00,0x00,0x00}, + 2, + { /* recipient pubkeys (address data) */ + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x02,0x5c,0xc9,0x85,0x6d,0x6f,0x83,0x75,0x35,0x0e,0x12,0x39,0x78,0xda,0xac,0x20,0x0c,0x26,0x0c,0xb5,0xb5,0xae,0x83,0x10,0x6c,0xab,0x90,0x48,0x4d,0xcd,0x8f,0xcf,0x36}, + }, + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x02,0x5c,0xc9,0x85,0x6d,0x6f,0x83,0x75,0x35,0x0e,0x12,0x39,0x78,0xda,0xac,0x20,0x0c,0x26,0x0c,0xb5,0xb5,0xae,0x83,0x10,0x6c,0xab,0x90,0x48,0x4d,0xcd,0x8f,0xcf,0x36}, + }, + { + "", + "", + }, + { + "", + "", + } + }, + 1, + 2, + { /* recipient outputs */ + { + {0xe9,0x76,0xa5,0x8f,0xbd,0x38,0xae,0xb4,0xe6,0x09,0x3d,0x4d,0xf0,0x2e,0x9c,0x1d,0xe0,0xc4,0x51,0x3a,0xe0,0xc5,0x88,0xce,0xf6,0x8c,0xda,0x5b,0x2f,0x88,0x34,0xca}, + {0xf2,0x07,0x16,0x2b,0x1a,0x7a,0xbc,0x51,0xc4,0x20,0x17,0xbe,0xf0,0x55,0xe9,0xec,0x1e,0xfc,0x3d,0x35,0x67,0xcb,0x72,0x03,0x57,0xe2,0xb8,0x43,0x25,0xdb,0x33,0xac}, + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + }, + /* recipient data (scan and spend seckeys) */ + {0x0f,0x69,0x4e,0x06,0x80,0x28,0xa7,0x17,0xf8,0xaf,0x6b,0x94,0x11,0xf9,0xa1,0x33,0xdd,0x35,0x65,0x25,0x87,0x14,0xcc,0x22,0x65,0x94,0xb3,0x4d,0xb9,0x0c,0x1f,0x2c}, + {0x9d,0x6a,0xd8,0x55,0xce,0x34,0x17,0xef,0x84,0xe8,0x36,0x89,0x2e,0x5a,0x56,0x39,0x2b,0xfb,0xa0,0x5f,0xa5,0xd9,0x7c,0xce,0xa3,0x0e,0x26,0x6f,0x54,0x0e,0x08,0xb3}, + 2, + { /* outputs to scan */ + {0xe9,0x76,0xa5,0x8f,0xbd,0x38,0xae,0xb4,0xe6,0x09,0x3d,0x4d,0xf0,0x2e,0x9c,0x1d,0xe0,0xc4,0x51,0x3a,0xe0,0xc5,0x88,0xce,0xf6,0x8c,0xda,0x5b,0x2f,0x88,0x34,0xca}, + {0xf2,0x07,0x16,0x2b,0x1a,0x7a,0xbc,0x51,0xc4,0x20,0x17,0xbe,0xf0,0x55,0xe9,0xec,0x1e,0xfc,0x3d,0x35,0x67,0xcb,0x72,0x03,0x57,0xe2,0xb8,0x43,0x25,0xdb,0x33,0xac}, + "", + "" + }, + 0, {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, /* labels */ + /* expected output data (pubkeys and seckey tweaks) */ + 2, + { + {0xe9,0x76,0xa5,0x8f,0xbd,0x38,0xae,0xb4,0xe6,0x09,0x3d,0x4d,0xf0,0x2e,0x9c,0x1d,0xe0,0xc4,0x51,0x3a,0xe0,0xc5,0x88,0xce,0xf6,0x8c,0xda,0x5b,0x2f,0x88,0x34,0xca}, + {0xf2,0x07,0x16,0x2b,0x1a,0x7a,0xbc,0x51,0xc4,0x20,0x17,0xbe,0xf0,0x55,0xe9,0xec,0x1e,0xfc,0x3d,0x35,0x67,0xcb,0x72,0x03,0x57,0xe2,0xb8,0x43,0x25,0xdb,0x33,0xac}, + "", + "" + }, + { + {0xd9,0x7e,0x44,0x2d,0x11,0x0c,0x0b,0xdd,0x31,0x16,0x1a,0x7b,0xb6,0xe7,0x86,0x2e,0x03,0x8d,0x02,0xa0,0x9b,0x14,0x84,0xdf,0xbb,0x46,0x3f,0x2e,0x0f,0x7c,0x92,0x30}, + {0x33,0xce,0x08,0x5c,0x3c,0x11,0xea,0xad,0x13,0x69,0x4a,0xae,0x3c,0x20,0x30,0x1a,0x6c,0x83,0x38,0x2e,0xc8,0x9a,0x7c,0xde,0x96,0xc6,0x79,0x9e,0x2f,0x88,0x80,0x5a}, + "", + "" + }, + { + {0x29,0xbd,0x25,0xd0,0xf8,0x08,0xd7,0xfc,0xd2,0xaa,0x6d,0x5e,0xd2,0x06,0x05,0x38,0x99,0x19,0x83,0x97,0x50,0x6c,0x30,0x1b,0x21,0x8a,0x9e,0x47,0xa3,0xd7,0x07,0x0a,0xf0,0x3e,0x90,0x3f,0xf7,0x18,0x97,0x8d,0x50,0xd1,0xb6,0xb9,0xaf,0x8c,0xc0,0xe3,0x13,0xd8,0x4e,0xda,0x5d,0x5b,0x1e,0x8e,0x85,0xe5,0x51,0x6d,0x63,0x0b,0xbe,0xb9}, + {0x33,0x56,0x67,0xca,0x6c,0xae,0x7a,0x26,0x43,0x8f,0x5c,0xfd,0xd7,0x3b,0x3d,0x48,0xfa,0x83,0x2f,0xa9,0x76,0x85,0x21,0xd7,0xd5,0x44,0x5f,0x22,0xc2,0x03,0xab,0x0d,0x74,0xed,0x85,0x08,0x8f,0x27,0xd2,0x99,0x59,0xba,0x62,0x7a,0x45,0x09,0x99,0x66,0x76,0xf4,0x7d,0xf8,0xff,0x28,0x4d,0x29,0x25,0x67,0xb1,0xbe,0xef,0x0e,0x39,0x12}, + "", + "" + } + }, + + /* ----- Multiple outputs: multiple outputs, multiple recipients (12) ----- */ + { + 2, + { /* input plain seckeys */ + {0xea,0xdc,0x78,0x16,0x5f,0xf1,0xf8,0xea,0x94,0xad,0x7c,0xfd,0xc5,0x49,0x90,0x73,0x8a,0x4c,0x53,0xf6,0xe0,0x50,0x7b,0x42,0x15,0x42,0x01,0xb8,0xe5,0xdf,0xf3,0xb1}, + {0x03,0x78,0xe9,0x56,0x85,0xb7,0x45,0x65,0xfa,0x56,0x75,0x1b,0x84,0xa3,0x2d,0xfd,0x18,0x54,0x5d,0x10,0xd6,0x91,0x64,0x1b,0x83,0x72,0xe3,0x21,0x64,0xfa,0xd6,0x6a}, + "" + }, + { /* input plain pubkeys */ + {0x02,0x5a,0x1e,0x61,0xf8,0x98,0x17,0x30,0x40,0xe2,0x06,0x16,0xd4,0x3e,0x9f,0x49,0x6f,0xba,0x90,0x33,0x8a,0x39,0xfa,0xa1,0xed,0x98,0xfc,0xba,0xee,0xe4,0xdd,0x9b,0xe5}, + {0x03,0x78,0x2e,0xeb,0x91,0x34,0x31,0xca,0x6e,0x9b,0x8c,0x2f,0xd8,0x0a,0x5f,0x72,0xed,0x20,0x24,0xef,0x72,0xa3,0xc6,0xfb,0x10,0x26,0x3c,0x37,0x99,0x37,0x32,0x33,0x38}, + "" + }, + 0, + { /* input taproot seckeys */ + "", + "", + "" + }, + { /* input x-only pubkeys */ + "", + "", + "" + }, + /* smallest outpoint */ + {0x16,0x9e,0x1e,0x83,0xe9,0x30,0x85,0x33,0x91,0xbc,0x6f,0x35,0xf6,0x05,0xc6,0x75,0x4c,0xfe,0xad,0x57,0xcf,0x83,0x87,0x63,0x9d,0x3b,0x40,0x96,0xc5,0x4f,0x18,0xf4,0x00,0x00,0x00,0x00}, + 3, + { /* recipient pubkeys (address data) */ + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x02,0x5c,0xc9,0x85,0x6d,0x6f,0x83,0x75,0x35,0x0e,0x12,0x39,0x78,0xda,0xac,0x20,0x0c,0x26,0x0c,0xb5,0xb5,0xae,0x83,0x10,0x6c,0xab,0x90,0x48,0x4d,0xcd,0x8f,0xcf,0x36}, + }, + { + {0x02,0x06,0x2d,0x49,0xff,0xc0,0x27,0x87,0xd5,0x86,0xc6,0x08,0xdf,0xbe,0xc1,0x84,0xaa,0x91,0xa6,0x59,0x7d,0x97,0xb4,0x63,0xea,0x5c,0x6b,0xab,0xd9,0xd1,0x7a,0x95,0xa3}, + {0x03,0x81,0xeb,0x9a,0x9a,0x9e,0xc7,0x39,0xd5,0x27,0xc1,0x63,0x1b,0x31,0xb4,0x21,0x56,0x6f,0x5c,0x2a,0x47,0xb4,0xab,0x5b,0x1f,0x6a,0x68,0x6d,0xfb,0x68,0xea,0xb7,0x16}, + }, + { + {0x02,0x06,0x2d,0x49,0xff,0xc0,0x27,0x87,0xd5,0x86,0xc6,0x08,0xdf,0xbe,0xc1,0x84,0xaa,0x91,0xa6,0x59,0x7d,0x97,0xb4,0x63,0xea,0x5c,0x6b,0xab,0xd9,0xd1,0x7a,0x95,0xa3}, + {0x03,0x81,0xeb,0x9a,0x9a,0x9e,0xc7,0x39,0xd5,0x27,0xc1,0x63,0x1b,0x31,0xb4,0x21,0x56,0x6f,0x5c,0x2a,0x47,0xb4,0xab,0x5b,0x1f,0x6a,0x68,0x6d,0xfb,0x68,0xea,0xb7,0x16}, + }, + { + "", + "", + } + }, + 1, + 3, + { /* recipient outputs */ + { + {0x2e,0x84,0x7b,0xb0,0x1d,0x1b,0x49,0x1d,0xa5,0x12,0xdd,0xd7,0x60,0xb8,0x50,0x96,0x17,0xee,0x38,0x05,0x70,0x03,0xd6,0x11,0x5d,0x00,0xba,0x56,0x24,0x51,0x32,0x3a}, + {0x84,0x17,0x92,0xc3,0x3c,0x9d,0xc6,0x19,0x3e,0x76,0x74,0x41,0x34,0x12,0x5d,0x40,0xad,0xd8,0xf2,0xf4,0xa9,0x64,0x75,0xf2,0x8b,0xa1,0x50,0xbe,0x03,0x2d,0x64,0xe8}, + {0xf2,0x07,0x16,0x2b,0x1a,0x7a,0xbc,0x51,0xc4,0x20,0x17,0xbe,0xf0,0x55,0xe9,0xec,0x1e,0xfc,0x3d,0x35,0x67,0xcb,0x72,0x03,0x57,0xe2,0xb8,0x43,0x25,0xdb,0x33,0xac}, + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + }, + /* recipient data (scan and spend seckeys) */ + {0x06,0x0b,0x75,0x1d,0x78,0x92,0x14,0x90,0x06,0xed,0x7b,0x98,0x60,0x69,0x55,0xa2,0x9f,0xe2,0x84,0xa1,0xe9,0x00,0x07,0x0c,0x09,0x71,0xf5,0xfb,0x93,0xdb,0xf4,0x22}, + {0x99,0x02,0xc3,0xc5,0x6e,0x84,0x00,0x2a,0x7c,0xd4,0x10,0x11,0x3a,0x9a,0xb2,0x1d,0x14,0x2b,0xe7,0xf5,0x3c,0xf5,0x20,0x07,0x20,0xbb,0x01,0x31,0x4c,0x5e,0xb9,0x20}, + 3, + { /* outputs to scan */ + {0x2e,0x84,0x7b,0xb0,0x1d,0x1b,0x49,0x1d,0xa5,0x12,0xdd,0xd7,0x60,0xb8,0x50,0x96,0x17,0xee,0x38,0x05,0x70,0x03,0xd6,0x11,0x5d,0x00,0xba,0x56,0x24,0x51,0x32,0x3a}, + {0x84,0x17,0x92,0xc3,0x3c,0x9d,0xc6,0x19,0x3e,0x76,0x74,0x41,0x34,0x12,0x5d,0x40,0xad,0xd8,0xf2,0xf4,0xa9,0x64,0x75,0xf2,0x8b,0xa1,0x50,0xbe,0x03,0x2d,0x64,0xe8}, + {0xf2,0x07,0x16,0x2b,0x1a,0x7a,0xbc,0x51,0xc4,0x20,0x17,0xbe,0xf0,0x55,0xe9,0xec,0x1e,0xfc,0x3d,0x35,0x67,0xcb,0x72,0x03,0x57,0xe2,0xb8,0x43,0x25,0xdb,0x33,0xac}, + "" + }, + 0, {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, /* labels */ + /* expected output data (pubkeys and seckey tweaks) */ + 2, + { + {0x2e,0x84,0x7b,0xb0,0x1d,0x1b,0x49,0x1d,0xa5,0x12,0xdd,0xd7,0x60,0xb8,0x50,0x96,0x17,0xee,0x38,0x05,0x70,0x03,0xd6,0x11,0x5d,0x00,0xba,0x56,0x24,0x51,0x32,0x3a}, + {0x84,0x17,0x92,0xc3,0x3c,0x9d,0xc6,0x19,0x3e,0x76,0x74,0x41,0x34,0x12,0x5d,0x40,0xad,0xd8,0xf2,0xf4,0xa9,0x64,0x75,0xf2,0x8b,0xa1,0x50,0xbe,0x03,0x2d,0x64,0xe8}, + "", + "" + }, + { + {0x72,0xcd,0x08,0x2c,0xcc,0xb6,0x33,0xbf,0x85,0x24,0x0a,0x83,0x49,0x4b,0x32,0xdc,0x94,0x3a,0x4d,0x05,0x64,0x7a,0x66,0x86,0xd2,0x3a,0xd4,0xca,0x59,0xc0,0xeb,0xe4}, + {0x2f,0x17,0xea,0x87,0x3a,0x00,0x47,0xfc,0x01,0xba,0x80,0x10,0xfe,0xf0,0x96,0x9e,0x76,0xd0,0xe4,0x28,0x3f,0x60,0x0d,0x48,0xf7,0x35,0x09,0x8b,0x1f,0xee,0x6e,0xb9}, + "", + "" + }, + { + {0x38,0x74,0x5f,0x3d,0x9f,0x5e,0xef,0x0b,0x1c,0xfb,0x17,0xca,0x31,0x4e,0xfa,0x8c,0x52,0x1e,0xfa,0xb2,0x8a,0x23,0xaa,0x20,0xec,0x5e,0x3a,0xbb,0x56,0x1d,0x42,0x80,0x4d,0x53,0x99,0x06,0xdc,0xe6,0x0c,0x4e,0xe7,0x97,0x79,0x66,0x18,0x4e,0x6f,0x2c,0xab,0x1f,0xaa,0x0e,0x53,0x77,0xce,0xb7,0x14,0x8e,0xc5,0x21,0x8b,0x4e,0x78,0x78}, + {0xc2,0x6f,0x4e,0x3c,0xf3,0x71,0xb9,0x0b,0x84,0x0f,0x48,0xea,0x0e,0x76,0x1b,0x5e,0xc3,0x18,0x83,0xed,0x55,0x71,0x9f,0x9e,0xf0,0x6a,0x90,0xe2,0x82,0xd8,0x5f,0x56,0x57,0x90,0xab,0x78,0x0a,0x3f,0x49,0x1b,0xc2,0x66,0x8c,0xc6,0x4e,0x94,0x4d,0xca,0x84,0x9d,0x10,0x22,0xa8,0x78,0xcd,0xad,0xb8,0xd1,0x68,0xb8,0xda,0x4a,0x6d,0xa3}, + "", + "" + } + }, + + /* ----- Receiving with labels: label with even parity (13) ----- */ + { + 2, + { /* input plain seckeys */ + {0xea,0xdc,0x78,0x16,0x5f,0xf1,0xf8,0xea,0x94,0xad,0x7c,0xfd,0xc5,0x49,0x90,0x73,0x8a,0x4c,0x53,0xf6,0xe0,0x50,0x7b,0x42,0x15,0x42,0x01,0xb8,0xe5,0xdf,0xf3,0xb1}, + {0x03,0x78,0xe9,0x56,0x85,0xb7,0x45,0x65,0xfa,0x56,0x75,0x1b,0x84,0xa3,0x2d,0xfd,0x18,0x54,0x5d,0x10,0xd6,0x91,0x64,0x1b,0x83,0x72,0xe3,0x21,0x64,0xfa,0xd6,0x6a}, + "" + }, + { /* input plain pubkeys */ + {0x02,0x5a,0x1e,0x61,0xf8,0x98,0x17,0x30,0x40,0xe2,0x06,0x16,0xd4,0x3e,0x9f,0x49,0x6f,0xba,0x90,0x33,0x8a,0x39,0xfa,0xa1,0xed,0x98,0xfc,0xba,0xee,0xe4,0xdd,0x9b,0xe5}, + {0x03,0x78,0x2e,0xeb,0x91,0x34,0x31,0xca,0x6e,0x9b,0x8c,0x2f,0xd8,0x0a,0x5f,0x72,0xed,0x20,0x24,0xef,0x72,0xa3,0xc6,0xfb,0x10,0x26,0x3c,0x37,0x99,0x37,0x32,0x33,0x38}, + "" + }, + 0, + { /* input taproot seckeys */ + "", + "", + "" + }, + { /* input x-only pubkeys */ + "", + "", + "" + }, + /* smallest outpoint */ + {0x16,0x9e,0x1e,0x83,0xe9,0x30,0x85,0x33,0x91,0xbc,0x6f,0x35,0xf6,0x05,0xc6,0x75,0x4c,0xfe,0xad,0x57,0xcf,0x83,0x87,0x63,0x9d,0x3b,0x40,0x96,0xc5,0x4f,0x18,0xf4,0x00,0x00,0x00,0x00}, + 1, + { /* recipient pubkeys (address data) */ + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x02,0x59,0x35,0x2a,0xdd,0x83,0x7b,0x66,0x86,0xe8,0xd2,0x2b,0x87,0x01,0x78,0x14,0xa4,0x6b,0x3a,0xd3,0x08,0x70,0x21,0x67,0xc6,0x5b,0xd5,0xc8,0x59,0x9c,0xd2,0x8d,0x1c}, + }, + { + "", + "", + }, + { + "", + "", + }, + { + "", + "", + } + }, + 1, + 1, + { /* recipient outputs */ + { + {0xd0,0x14,0xd4,0x86,0x0f,0x67,0xd6,0x07,0xd6,0x0b,0x1a,0xf7,0x0e,0x0e,0xe2,0x36,0xb9,0x96,0x58,0xb6,0x1b,0xb7,0x69,0x83,0x2a,0xcb,0xbe,0x87,0xc3,0x74,0x43,0x9a}, + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + }, + /* recipient data (scan and spend seckeys) */ + {0x0f,0x69,0x4e,0x06,0x80,0x28,0xa7,0x17,0xf8,0xaf,0x6b,0x94,0x11,0xf9,0xa1,0x33,0xdd,0x35,0x65,0x25,0x87,0x14,0xcc,0x22,0x65,0x94,0xb3,0x4d,0xb9,0x0c,0x1f,0x2c}, + {0x9d,0x6a,0xd8,0x55,0xce,0x34,0x17,0xef,0x84,0xe8,0x36,0x89,0x2e,0x5a,0x56,0x39,0x2b,0xfb,0xa0,0x5f,0xa5,0xd9,0x7c,0xce,0xa3,0x0e,0x26,0x6f,0x54,0x0e,0x08,0xb3}, + 1, + { /* outputs to scan */ + {0xd0,0x14,0xd4,0x86,0x0f,0x67,0xd6,0x07,0xd6,0x0b,0x1a,0xf7,0x0e,0x0e,0xe2,0x36,0xb9,0x96,0x58,0xb6,0x1b,0xb7,0x69,0x83,0x2a,0xcb,0xbe,0x87,0xc3,0x74,0x43,0x9a}, + "", + "", + "" + }, + 3, {2, 3, 1001337, 0xffffffff}, /* labels */ + /* expected output data (pubkeys and seckey tweaks) */ + 1, + { + {0xd0,0x14,0xd4,0x86,0x0f,0x67,0xd6,0x07,0xd6,0x0b,0x1a,0xf7,0x0e,0x0e,0xe2,0x36,0xb9,0x96,0x58,0xb6,0x1b,0xb7,0x69,0x83,0x2a,0xcb,0xbe,0x87,0xc3,0x74,0x43,0x9a}, + "", + "", + "" + }, + { + {0x51,0xd4,0xe9,0xd0,0xd4,0x82,0xb5,0x70,0x01,0x09,0xb4,0xb2,0xe1,0x6f,0xf5,0x08,0x26,0x9b,0x03,0xd8,0x00,0x19,0x2a,0x04,0x3d,0x61,0xdc,0xa4,0xa0,0xa7,0x2a,0x52}, + "", + "", + "" + }, + { + {0xc3,0x0f,0xa6,0x3b,0xad,0x6f,0x0a,0x31,0x7f,0x39,0xa7,0x73,0xa5,0xcb,0xf0,0xb0,0xf8,0x19,0x3c,0x71,0xdf,0xeb,0xba,0x05,0xee,0x6a,0xe4,0xed,0x28,0xe3,0x77,0x5e,0x6e,0x04,0xc3,0xea,0x70,0xa8,0x37,0x03,0xbb,0x88,0x81,0x22,0x85,0x5d,0xc8,0x94,0xca,0xb6,0x16,0x92,0xe7,0xfd,0x10,0xc9,0xb3,0x49,0x4d,0x47,0x9a,0x60,0x78,0x5e}, + "", + "", + "" + } + }, + + /* ----- Receiving with labels: label with odd parity (14) ----- */ + { + 2, + { /* input plain seckeys */ + {0xea,0xdc,0x78,0x16,0x5f,0xf1,0xf8,0xea,0x94,0xad,0x7c,0xfd,0xc5,0x49,0x90,0x73,0x8a,0x4c,0x53,0xf6,0xe0,0x50,0x7b,0x42,0x15,0x42,0x01,0xb8,0xe5,0xdf,0xf3,0xb1}, + {0x03,0x78,0xe9,0x56,0x85,0xb7,0x45,0x65,0xfa,0x56,0x75,0x1b,0x84,0xa3,0x2d,0xfd,0x18,0x54,0x5d,0x10,0xd6,0x91,0x64,0x1b,0x83,0x72,0xe3,0x21,0x64,0xfa,0xd6,0x6a}, + "" + }, + { /* input plain pubkeys */ + {0x02,0x5a,0x1e,0x61,0xf8,0x98,0x17,0x30,0x40,0xe2,0x06,0x16,0xd4,0x3e,0x9f,0x49,0x6f,0xba,0x90,0x33,0x8a,0x39,0xfa,0xa1,0xed,0x98,0xfc,0xba,0xee,0xe4,0xdd,0x9b,0xe5}, + {0x03,0x78,0x2e,0xeb,0x91,0x34,0x31,0xca,0x6e,0x9b,0x8c,0x2f,0xd8,0x0a,0x5f,0x72,0xed,0x20,0x24,0xef,0x72,0xa3,0xc6,0xfb,0x10,0x26,0x3c,0x37,0x99,0x37,0x32,0x33,0x38}, + "" + }, + 0, + { /* input taproot seckeys */ + "", + "", + "" + }, + { /* input x-only pubkeys */ + "", + "", + "" + }, + /* smallest outpoint */ + {0x16,0x9e,0x1e,0x83,0xe9,0x30,0x85,0x33,0x91,0xbc,0x6f,0x35,0xf6,0x05,0xc6,0x75,0x4c,0xfe,0xad,0x57,0xcf,0x83,0x87,0x63,0x9d,0x3b,0x40,0x96,0xc5,0x4f,0x18,0xf4,0x00,0x00,0x00,0x00}, + 1, + { /* recipient pubkeys (address data) */ + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x02,0x08,0xa1,0x44,0xa1,0x84,0x33,0xa8,0x3f,0x63,0x3c,0x82,0x2c,0x1b,0xf5,0xee,0x4c,0x8c,0x8e,0x24,0x60,0x1d,0x6c,0xa7,0x5e,0x20,0xa7,0xdc,0x57,0xa0,0xff,0x92,0x80}, + }, + { + "", + "", + }, + { + "", + "", + }, + { + "", + "", + } + }, + 1, + 1, + { /* recipient outputs */ + { + {0x67,0x62,0x6a,0xeb,0xb3,0xc4,0x30,0x7c,0xf0,0xf6,0xc3,0x9c,0xa2,0x32,0x47,0x59,0x8f,0xab,0xf6,0x75,0xab,0x78,0x32,0x92,0xeb,0x2f,0x81,0xae,0x75,0xad,0x1f,0x8c}, + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + }, + /* recipient data (scan and spend seckeys) */ + {0x0f,0x69,0x4e,0x06,0x80,0x28,0xa7,0x17,0xf8,0xaf,0x6b,0x94,0x11,0xf9,0xa1,0x33,0xdd,0x35,0x65,0x25,0x87,0x14,0xcc,0x22,0x65,0x94,0xb3,0x4d,0xb9,0x0c,0x1f,0x2c}, + {0x9d,0x6a,0xd8,0x55,0xce,0x34,0x17,0xef,0x84,0xe8,0x36,0x89,0x2e,0x5a,0x56,0x39,0x2b,0xfb,0xa0,0x5f,0xa5,0xd9,0x7c,0xce,0xa3,0x0e,0x26,0x6f,0x54,0x0e,0x08,0xb3}, + 1, + { /* outputs to scan */ + {0x67,0x62,0x6a,0xeb,0xb3,0xc4,0x30,0x7c,0xf0,0xf6,0xc3,0x9c,0xa2,0x32,0x47,0x59,0x8f,0xab,0xf6,0x75,0xab,0x78,0x32,0x92,0xeb,0x2f,0x81,0xae,0x75,0xad,0x1f,0x8c}, + "", + "", + "" + }, + 3, {2, 3, 1001337, 0xffffffff}, /* labels */ + /* expected output data (pubkeys and seckey tweaks) */ + 1, + { + {0x67,0x62,0x6a,0xeb,0xb3,0xc4,0x30,0x7c,0xf0,0xf6,0xc3,0x9c,0xa2,0x32,0x47,0x59,0x8f,0xab,0xf6,0x75,0xab,0x78,0x32,0x92,0xeb,0x2f,0x81,0xae,0x75,0xad,0x1f,0x8c}, + "", + "", + "" + }, + { + {0x60,0x24,0xae,0x21,0x48,0x76,0x35,0x6b,0x8d,0x91,0x77,0x16,0xe7,0x70,0x7d,0x26,0x7a,0xe1,0x6a,0x0f,0xdb,0x07,0xde,0x2a,0x78,0x6b,0x74,0xa7,0xbb,0xcd,0xde,0xad}, + "", + "", + "" + }, + { + {0xa8,0x6d,0x55,0x4d,0x0d,0x6b,0x7a,0xa0,0x90,0x71,0x55,0xf7,0xe0,0xb4,0x7f,0x01,0x82,0x75,0x24,0x72,0xff,0xfa,0xed,0xdd,0x68,0xda,0x90,0xe9,0x9b,0x94,0x02,0xf1,0x66,0xfd,0x9b,0x33,0x03,0x9c,0x30,0x2c,0x71,0x15,0x09,0x8d,0x97,0x1c,0x13,0x99,0xe6,0x7c,0x19,0xe9,0xe4,0xde,0x18,0x0b,0x10,0xea,0x0b,0x9d,0x6f,0x0d,0xb8,0x32}, + "", + "", + "" + } + }, + + /* ----- Receiving with labels: large label integer (15) ----- */ + { + 2, + { /* input plain seckeys */ + {0xea,0xdc,0x78,0x16,0x5f,0xf1,0xf8,0xea,0x94,0xad,0x7c,0xfd,0xc5,0x49,0x90,0x73,0x8a,0x4c,0x53,0xf6,0xe0,0x50,0x7b,0x42,0x15,0x42,0x01,0xb8,0xe5,0xdf,0xf3,0xb1}, + {0x03,0x78,0xe9,0x56,0x85,0xb7,0x45,0x65,0xfa,0x56,0x75,0x1b,0x84,0xa3,0x2d,0xfd,0x18,0x54,0x5d,0x10,0xd6,0x91,0x64,0x1b,0x83,0x72,0xe3,0x21,0x64,0xfa,0xd6,0x6a}, + "" + }, + { /* input plain pubkeys */ + {0x02,0x5a,0x1e,0x61,0xf8,0x98,0x17,0x30,0x40,0xe2,0x06,0x16,0xd4,0x3e,0x9f,0x49,0x6f,0xba,0x90,0x33,0x8a,0x39,0xfa,0xa1,0xed,0x98,0xfc,0xba,0xee,0xe4,0xdd,0x9b,0xe5}, + {0x03,0x78,0x2e,0xeb,0x91,0x34,0x31,0xca,0x6e,0x9b,0x8c,0x2f,0xd8,0x0a,0x5f,0x72,0xed,0x20,0x24,0xef,0x72,0xa3,0xc6,0xfb,0x10,0x26,0x3c,0x37,0x99,0x37,0x32,0x33,0x38}, + "" + }, + 0, + { /* input taproot seckeys */ + "", + "", + "" + }, + { /* input x-only pubkeys */ + "", + "", + "" + }, + /* smallest outpoint */ + {0x16,0x9e,0x1e,0x83,0xe9,0x30,0x85,0x33,0x91,0xbc,0x6f,0x35,0xf6,0x05,0xc6,0x75,0x4c,0xfe,0xad,0x57,0xcf,0x83,0x87,0x63,0x9d,0x3b,0x40,0x96,0xc5,0x4f,0x18,0xf4,0x00,0x00,0x00,0x00}, + 1, + { /* recipient pubkeys (address data) */ + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x03,0xd8,0x50,0x92,0xbb,0xe3,0x46,0x8f,0x68,0x4c,0xe1,0xd8,0xa2,0xa6,0x6e,0xbe,0xc9,0x6a,0x9e,0x6e,0x09,0xe7,0x11,0x07,0x20,0xa5,0xd5,0xfa,0xa4,0xaa,0x78,0x80,0xd0}, + }, + { + "", + "", + }, + { + "", + "", + }, + { + "", + "", + } + }, + 1, + 1, + { /* recipient outputs */ + { + {0x7e,0xfa,0x60,0xce,0x78,0xac,0x34,0x3d,0xf8,0xa0,0x13,0xa2,0x02,0x7c,0x6c,0x5e,0xf2,0x9f,0x95,0x02,0xed,0xcb,0xd7,0x69,0xd2,0xc2,0x17,0x17,0xfe,0xcc,0x59,0x51}, + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + }, + /* recipient data (scan and spend seckeys) */ + {0x0f,0x69,0x4e,0x06,0x80,0x28,0xa7,0x17,0xf8,0xaf,0x6b,0x94,0x11,0xf9,0xa1,0x33,0xdd,0x35,0x65,0x25,0x87,0x14,0xcc,0x22,0x65,0x94,0xb3,0x4d,0xb9,0x0c,0x1f,0x2c}, + {0x9d,0x6a,0xd8,0x55,0xce,0x34,0x17,0xef,0x84,0xe8,0x36,0x89,0x2e,0x5a,0x56,0x39,0x2b,0xfb,0xa0,0x5f,0xa5,0xd9,0x7c,0xce,0xa3,0x0e,0x26,0x6f,0x54,0x0e,0x08,0xb3}, + 1, + { /* outputs to scan */ + {0x7e,0xfa,0x60,0xce,0x78,0xac,0x34,0x3d,0xf8,0xa0,0x13,0xa2,0x02,0x7c,0x6c,0x5e,0xf2,0x9f,0x95,0x02,0xed,0xcb,0xd7,0x69,0xd2,0xc2,0x17,0x17,0xfe,0xcc,0x59,0x51}, + "", + "", + "" + }, + 3, {2, 3, 1001337, 0xffffffff}, /* labels */ + /* expected output data (pubkeys and seckey tweaks) */ + 1, + { + {0x7e,0xfa,0x60,0xce,0x78,0xac,0x34,0x3d,0xf8,0xa0,0x13,0xa2,0x02,0x7c,0x6c,0x5e,0xf2,0x9f,0x95,0x02,0xed,0xcb,0xd7,0x69,0xd2,0xc2,0x17,0x17,0xfe,0xcc,0x59,0x51}, + "", + "", + "" + }, + { + {0xe3,0x36,0xb9,0x23,0x30,0xc3,0x30,0x30,0x28,0x5c,0xe4,0x2e,0x41,0x15,0xad,0x92,0xd5,0x19,0x79,0x13,0xc8,0x8e,0x06,0xb9,0x07,0x2b,0x4a,0x9b,0x47,0xc6,0x64,0xa2}, + "", + "", + "" + }, + { + {0xc9,0xe8,0x0d,0xd3,0xbd,0xd2,0x5c,0xa2,0xd3,0x52,0xce,0x77,0x51,0x0f,0x1a,0xed,0x37,0xba,0x35,0x09,0xdc,0x8c,0xc0,0x67,0x7f,0x2d,0x7c,0x2d,0xd0,0x40,0x90,0x70,0x79,0x50,0xce,0x9d,0xd6,0xc8,0x3d,0x2a,0x42,0x80,0x63,0x06,0x3a,0xff,0x5c,0x04,0xf1,0x74,0x4e,0x33,0x4f,0x66,0x1f,0x2f,0xc0,0x1b,0x4e,0xf8,0x0b,0x50,0xf7,0x39}, + "", + "", + "" + } + }, + + /* ----- Multiple outputs with labels: un-labeled and labeled address; same recipient (16) ----- */ + { + 2, + { /* input plain seckeys */ + {0xea,0xdc,0x78,0x16,0x5f,0xf1,0xf8,0xea,0x94,0xad,0x7c,0xfd,0xc5,0x49,0x90,0x73,0x8a,0x4c,0x53,0xf6,0xe0,0x50,0x7b,0x42,0x15,0x42,0x01,0xb8,0xe5,0xdf,0xf3,0xb1}, + {0x03,0x78,0xe9,0x56,0x85,0xb7,0x45,0x65,0xfa,0x56,0x75,0x1b,0x84,0xa3,0x2d,0xfd,0x18,0x54,0x5d,0x10,0xd6,0x91,0x64,0x1b,0x83,0x72,0xe3,0x21,0x64,0xfa,0xd6,0x6a}, + "" + }, + { /* input plain pubkeys */ + {0x02,0x5a,0x1e,0x61,0xf8,0x98,0x17,0x30,0x40,0xe2,0x06,0x16,0xd4,0x3e,0x9f,0x49,0x6f,0xba,0x90,0x33,0x8a,0x39,0xfa,0xa1,0xed,0x98,0xfc,0xba,0xee,0xe4,0xdd,0x9b,0xe5}, + {0x03,0x78,0x2e,0xeb,0x91,0x34,0x31,0xca,0x6e,0x9b,0x8c,0x2f,0xd8,0x0a,0x5f,0x72,0xed,0x20,0x24,0xef,0x72,0xa3,0xc6,0xfb,0x10,0x26,0x3c,0x37,0x99,0x37,0x32,0x33,0x38}, + "" + }, + 0, + { /* input taproot seckeys */ + "", + "", + "" + }, + { /* input x-only pubkeys */ + "", + "", + "" + }, + /* smallest outpoint */ + {0x16,0x9e,0x1e,0x83,0xe9,0x30,0x85,0x33,0x91,0xbc,0x6f,0x35,0xf6,0x05,0xc6,0x75,0x4c,0xfe,0xad,0x57,0xcf,0x83,0x87,0x63,0x9d,0x3b,0x40,0x96,0xc5,0x4f,0x18,0xf4,0x00,0x00,0x00,0x00}, + 2, + { /* recipient pubkeys (address data) */ + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x03,0xa6,0x73,0x94,0x99,0xdc,0x66,0x7d,0x30,0x8b,0xae,0xfe,0xa4,0xde,0x0c,0x4a,0x85,0xcc,0x72,0xae,0xce,0x18,0x1b,0xc0,0x57,0x12,0xd3,0x91,0x96,0x62,0x61,0x0f,0xf1}, + }, + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x02,0x5c,0xc9,0x85,0x6d,0x6f,0x83,0x75,0x35,0x0e,0x12,0x39,0x78,0xda,0xac,0x20,0x0c,0x26,0x0c,0xb5,0xb5,0xae,0x83,0x10,0x6c,0xab,0x90,0x48,0x4d,0xcd,0x8f,0xcf,0x36}, + }, + { + "", + "", + }, + { + "", + "", + } + }, + 2, + 2, + { /* recipient outputs */ + { + {0x39,0xf4,0x26,0x24,0xd5,0xc3,0x2a,0x77,0xfd,0xa8,0x0f,0xf0,0xac,0xee,0x26,0x9a,0xfe,0xc6,0x01,0xd3,0x79,0x18,0x03,0xe8,0x02,0x52,0xae,0x04,0xe4,0xff,0xcf,0x4c}, + {0xf2,0x07,0x16,0x2b,0x1a,0x7a,0xbc,0x51,0xc4,0x20,0x17,0xbe,0xf0,0x55,0xe9,0xec,0x1e,0xfc,0x3d,0x35,0x67,0xcb,0x72,0x03,0x57,0xe2,0xb8,0x43,0x25,0xdb,0x33,0xac}, + "", + "" + }, + { + {0x83,0xdc,0x94,0x4e,0x61,0x60,0x31,0x37,0x29,0x48,0x29,0xae,0xd5,0x6c,0x74,0xc9,0xb0,0x87,0xd8,0x0f,0x2c,0x02,0x1b,0x98,0xa7,0xfa,0xe5,0x79,0x90,0x00,0x69,0x6c}, + {0xe9,0x76,0xa5,0x8f,0xbd,0x38,0xae,0xb4,0xe6,0x09,0x3d,0x4d,0xf0,0x2e,0x9c,0x1d,0xe0,0xc4,0x51,0x3a,0xe0,0xc5,0x88,0xce,0xf6,0x8c,0xda,0x5b,0x2f,0x88,0x34,0xca}, + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + }, + /* recipient data (scan and spend seckeys) */ + {0x0f,0x69,0x4e,0x06,0x80,0x28,0xa7,0x17,0xf8,0xaf,0x6b,0x94,0x11,0xf9,0xa1,0x33,0xdd,0x35,0x65,0x25,0x87,0x14,0xcc,0x22,0x65,0x94,0xb3,0x4d,0xb9,0x0c,0x1f,0x2c}, + {0x9d,0x6a,0xd8,0x55,0xce,0x34,0x17,0xef,0x84,0xe8,0x36,0x89,0x2e,0x5a,0x56,0x39,0x2b,0xfb,0xa0,0x5f,0xa5,0xd9,0x7c,0xce,0xa3,0x0e,0x26,0x6f,0x54,0x0e,0x08,0xb3}, + 2, + { /* outputs to scan */ + {0x39,0xf4,0x26,0x24,0xd5,0xc3,0x2a,0x77,0xfd,0xa8,0x0f,0xf0,0xac,0xee,0x26,0x9a,0xfe,0xc6,0x01,0xd3,0x79,0x18,0x03,0xe8,0x02,0x52,0xae,0x04,0xe4,0xff,0xcf,0x4c}, + {0xf2,0x07,0x16,0x2b,0x1a,0x7a,0xbc,0x51,0xc4,0x20,0x17,0xbe,0xf0,0x55,0xe9,0xec,0x1e,0xfc,0x3d,0x35,0x67,0xcb,0x72,0x03,0x57,0xe2,0xb8,0x43,0x25,0xdb,0x33,0xac}, + "", + "" + }, + 1, {1, 0xffffffff, 0xffffffff, 0xffffffff}, /* labels */ + /* expected output data (pubkeys and seckey tweaks) */ + 2, + { + {0x39,0xf4,0x26,0x24,0xd5,0xc3,0x2a,0x77,0xfd,0xa8,0x0f,0xf0,0xac,0xee,0x26,0x9a,0xfe,0xc6,0x01,0xd3,0x79,0x18,0x03,0xe8,0x02,0x52,0xae,0x04,0xe4,0xff,0xcf,0x4c}, + {0xf2,0x07,0x16,0x2b,0x1a,0x7a,0xbc,0x51,0xc4,0x20,0x17,0xbe,0xf0,0x55,0xe9,0xec,0x1e,0xfc,0x3d,0x35,0x67,0xcb,0x72,0x03,0x57,0xe2,0xb8,0x43,0x25,0xdb,0x33,0xac}, + "", + "" + }, + { + {0x43,0x10,0x0f,0x89,0xf1,0xa6,0xbf,0x10,0x08,0x1c,0x92,0xb4,0x73,0xff,0xc5,0x7c,0xea,0xc7,0xdb,0xed,0x60,0x0b,0x6a,0xba,0x9b,0xb3,0x97,0x6f,0x17,0xdb,0xb9,0x14}, + {0x33,0xce,0x08,0x5c,0x3c,0x11,0xea,0xad,0x13,0x69,0x4a,0xae,0x3c,0x20,0x30,0x1a,0x6c,0x83,0x38,0x2e,0xc8,0x9a,0x7c,0xde,0x96,0xc6,0x79,0x9e,0x2f,0x88,0x80,0x5a}, + "", + "" + }, + { + {0x15,0xc9,0x25,0x09,0xb6,0x7a,0x6c,0x21,0x1e,0xbb,0x4a,0x51,0xb7,0x52,0x8d,0x06,0x66,0xe6,0x72,0x0d,0xe2,0x34,0x3b,0x2e,0x92,0xcf,0xb9,0x79,0x42,0xca,0x14,0x69,0x3c,0x1f,0x1f,0xdc,0x84,0x51,0xac,0xfd,0xb2,0x64,0x40,0x39,0xf8,0xf5,0xc7,0x61,0x14,0x80,0x7f,0xdc,0x3d,0x3a,0x00,0x2d,0x8a,0x46,0xaf,0xab,0x67,0x56,0xbd,0x75}, + {0x33,0x56,0x67,0xca,0x6c,0xae,0x7a,0x26,0x43,0x8f,0x5c,0xfd,0xd7,0x3b,0x3d,0x48,0xfa,0x83,0x2f,0xa9,0x76,0x85,0x21,0xd7,0xd5,0x44,0x5f,0x22,0xc2,0x03,0xab,0x0d,0x74,0xed,0x85,0x08,0x8f,0x27,0xd2,0x99,0x59,0xba,0x62,0x7a,0x45,0x09,0x99,0x66,0x76,0xf4,0x7d,0xf8,0xff,0x28,0x4d,0x29,0x25,0x67,0xb1,0xbe,0xef,0x0e,0x39,0x12}, + "", + "" + } + }, + + /* ----- Multiple outputs with labels: multiple outputs for labeled address; same recipient (17) ----- */ + { + 2, + { /* input plain seckeys */ + {0xea,0xdc,0x78,0x16,0x5f,0xf1,0xf8,0xea,0x94,0xad,0x7c,0xfd,0xc5,0x49,0x90,0x73,0x8a,0x4c,0x53,0xf6,0xe0,0x50,0x7b,0x42,0x15,0x42,0x01,0xb8,0xe5,0xdf,0xf3,0xb1}, + {0x03,0x78,0xe9,0x56,0x85,0xb7,0x45,0x65,0xfa,0x56,0x75,0x1b,0x84,0xa3,0x2d,0xfd,0x18,0x54,0x5d,0x10,0xd6,0x91,0x64,0x1b,0x83,0x72,0xe3,0x21,0x64,0xfa,0xd6,0x6a}, + "" + }, + { /* input plain pubkeys */ + {0x02,0x5a,0x1e,0x61,0xf8,0x98,0x17,0x30,0x40,0xe2,0x06,0x16,0xd4,0x3e,0x9f,0x49,0x6f,0xba,0x90,0x33,0x8a,0x39,0xfa,0xa1,0xed,0x98,0xfc,0xba,0xee,0xe4,0xdd,0x9b,0xe5}, + {0x03,0x78,0x2e,0xeb,0x91,0x34,0x31,0xca,0x6e,0x9b,0x8c,0x2f,0xd8,0x0a,0x5f,0x72,0xed,0x20,0x24,0xef,0x72,0xa3,0xc6,0xfb,0x10,0x26,0x3c,0x37,0x99,0x37,0x32,0x33,0x38}, + "" + }, + 0, + { /* input taproot seckeys */ + "", + "", + "" + }, + { /* input x-only pubkeys */ + "", + "", + "" + }, + /* smallest outpoint */ + {0x16,0x9e,0x1e,0x83,0xe9,0x30,0x85,0x33,0x91,0xbc,0x6f,0x35,0xf6,0x05,0xc6,0x75,0x4c,0xfe,0xad,0x57,0xcf,0x83,0x87,0x63,0x9d,0x3b,0x40,0x96,0xc5,0x4f,0x18,0xf4,0x00,0x00,0x00,0x00}, + 2, + { /* recipient pubkeys (address data) */ + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x03,0xa6,0x73,0x94,0x99,0xdc,0x66,0x7d,0x30,0x8b,0xae,0xfe,0xa4,0xde,0x0c,0x4a,0x85,0xcc,0x72,0xae,0xce,0x18,0x1b,0xc0,0x57,0x12,0xd3,0x91,0x96,0x62,0x61,0x0f,0xf1}, + }, + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x03,0xa6,0x73,0x94,0x99,0xdc,0x66,0x7d,0x30,0x8b,0xae,0xfe,0xa4,0xde,0x0c,0x4a,0x85,0xcc,0x72,0xae,0xce,0x18,0x1b,0xc0,0x57,0x12,0xd3,0x91,0x96,0x62,0x61,0x0f,0xf1}, + }, + { + "", + "", + }, + { + "", + "", + } + }, + 1, + 2, + { /* recipient outputs */ + { + {0x39,0xf4,0x26,0x24,0xd5,0xc3,0x2a,0x77,0xfd,0xa8,0x0f,0xf0,0xac,0xee,0x26,0x9a,0xfe,0xc6,0x01,0xd3,0x79,0x18,0x03,0xe8,0x02,0x52,0xae,0x04,0xe4,0xff,0xcf,0x4c}, + {0x83,0xdc,0x94,0x4e,0x61,0x60,0x31,0x37,0x29,0x48,0x29,0xae,0xd5,0x6c,0x74,0xc9,0xb0,0x87,0xd8,0x0f,0x2c,0x02,0x1b,0x98,0xa7,0xfa,0xe5,0x79,0x90,0x00,0x69,0x6c}, + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + }, + /* recipient data (scan and spend seckeys) */ + {0x0f,0x69,0x4e,0x06,0x80,0x28,0xa7,0x17,0xf8,0xaf,0x6b,0x94,0x11,0xf9,0xa1,0x33,0xdd,0x35,0x65,0x25,0x87,0x14,0xcc,0x22,0x65,0x94,0xb3,0x4d,0xb9,0x0c,0x1f,0x2c}, + {0x9d,0x6a,0xd8,0x55,0xce,0x34,0x17,0xef,0x84,0xe8,0x36,0x89,0x2e,0x5a,0x56,0x39,0x2b,0xfb,0xa0,0x5f,0xa5,0xd9,0x7c,0xce,0xa3,0x0e,0x26,0x6f,0x54,0x0e,0x08,0xb3}, + 2, + { /* outputs to scan */ + {0x39,0xf4,0x26,0x24,0xd5,0xc3,0x2a,0x77,0xfd,0xa8,0x0f,0xf0,0xac,0xee,0x26,0x9a,0xfe,0xc6,0x01,0xd3,0x79,0x18,0x03,0xe8,0x02,0x52,0xae,0x04,0xe4,0xff,0xcf,0x4c}, + {0x83,0xdc,0x94,0x4e,0x61,0x60,0x31,0x37,0x29,0x48,0x29,0xae,0xd5,0x6c,0x74,0xc9,0xb0,0x87,0xd8,0x0f,0x2c,0x02,0x1b,0x98,0xa7,0xfa,0xe5,0x79,0x90,0x00,0x69,0x6c}, + "", + "" + }, + 1, {1, 0xffffffff, 0xffffffff, 0xffffffff}, /* labels */ + /* expected output data (pubkeys and seckey tweaks) */ + 2, + { + {0x39,0xf4,0x26,0x24,0xd5,0xc3,0x2a,0x77,0xfd,0xa8,0x0f,0xf0,0xac,0xee,0x26,0x9a,0xfe,0xc6,0x01,0xd3,0x79,0x18,0x03,0xe8,0x02,0x52,0xae,0x04,0xe4,0xff,0xcf,0x4c}, + {0x83,0xdc,0x94,0x4e,0x61,0x60,0x31,0x37,0x29,0x48,0x29,0xae,0xd5,0x6c,0x74,0xc9,0xb0,0x87,0xd8,0x0f,0x2c,0x02,0x1b,0x98,0xa7,0xfa,0xe5,0x79,0x90,0x00,0x69,0x6c}, + "", + "" + }, + { + {0x43,0x10,0x0f,0x89,0xf1,0xa6,0xbf,0x10,0x08,0x1c,0x92,0xb4,0x73,0xff,0xc5,0x7c,0xea,0xc7,0xdb,0xed,0x60,0x0b,0x6a,0xba,0x9b,0xb3,0x97,0x6f,0x17,0xdb,0xb9,0x14}, + {0x9d,0x5f,0xd3,0xb9,0x1c,0xac,0x9d,0xdf,0xea,0x6f,0xc2,0xe6,0xf9,0x38,0x6f,0x68,0x0e,0x6c,0xee,0x62,0x3c,0xda,0x02,0xf5,0x37,0x06,0x30,0x6c,0x08,0x1d,0xe8,0x7f}, + "", + "" + }, + { + {0x15,0xc9,0x25,0x09,0xb6,0x7a,0x6c,0x21,0x1e,0xbb,0x4a,0x51,0xb7,0x52,0x8d,0x06,0x66,0xe6,0x72,0x0d,0xe2,0x34,0x3b,0x2e,0x92,0xcf,0xb9,0x79,0x42,0xca,0x14,0x69,0x3c,0x1f,0x1f,0xdc,0x84,0x51,0xac,0xfd,0xb2,0x64,0x40,0x39,0xf8,0xf5,0xc7,0x61,0x14,0x80,0x7f,0xdc,0x3d,0x3a,0x00,0x2d,0x8a,0x46,0xaf,0xab,0x67,0x56,0xbd,0x75}, + {0xdb,0x0d,0xfa,0xcc,0x98,0xb6,0xa6,0xfc,0xc6,0x7c,0xc4,0x63,0x1f,0x08,0x0b,0x1c,0xa3,0x8c,0x60,0xd8,0xc3,0x97,0xf2,0xf1,0x98,0x43,0xf8,0xf9,0x5e,0xc9,0x15,0x94,0xb2,0x4e,0x47,0xc5,0xbd,0x39,0x48,0x0a,0x86,0x1c,0x12,0x09,0xf7,0xe3,0x14,0x5c,0x44,0x03,0x71,0xf9,0x19,0x1f,0xb9,0x6e,0x32,0x46,0x90,0x10,0x1e,0xac,0x8e,0x8e}, + "", + "" + } + }, + + /* ----- Multiple outputs with labels: un-labeled, labeled, and multiple outputs for labeled address; same recipients (18) ----- */ + { + 2, + { /* input plain seckeys */ + {0xea,0xdc,0x78,0x16,0x5f,0xf1,0xf8,0xea,0x94,0xad,0x7c,0xfd,0xc5,0x49,0x90,0x73,0x8a,0x4c,0x53,0xf6,0xe0,0x50,0x7b,0x42,0x15,0x42,0x01,0xb8,0xe5,0xdf,0xf3,0xb1}, + {0x03,0x78,0xe9,0x56,0x85,0xb7,0x45,0x65,0xfa,0x56,0x75,0x1b,0x84,0xa3,0x2d,0xfd,0x18,0x54,0x5d,0x10,0xd6,0x91,0x64,0x1b,0x83,0x72,0xe3,0x21,0x64,0xfa,0xd6,0x6a}, + "" + }, + { /* input plain pubkeys */ + {0x02,0x5a,0x1e,0x61,0xf8,0x98,0x17,0x30,0x40,0xe2,0x06,0x16,0xd4,0x3e,0x9f,0x49,0x6f,0xba,0x90,0x33,0x8a,0x39,0xfa,0xa1,0xed,0x98,0xfc,0xba,0xee,0xe4,0xdd,0x9b,0xe5}, + {0x03,0x78,0x2e,0xeb,0x91,0x34,0x31,0xca,0x6e,0x9b,0x8c,0x2f,0xd8,0x0a,0x5f,0x72,0xed,0x20,0x24,0xef,0x72,0xa3,0xc6,0xfb,0x10,0x26,0x3c,0x37,0x99,0x37,0x32,0x33,0x38}, + "" + }, + 0, + { /* input taproot seckeys */ + "", + "", + "" + }, + { /* input x-only pubkeys */ + "", + "", + "" + }, + /* smallest outpoint */ + {0x16,0x9e,0x1e,0x83,0xe9,0x30,0x85,0x33,0x91,0xbc,0x6f,0x35,0xf6,0x05,0xc6,0x75,0x4c,0xfe,0xad,0x57,0xcf,0x83,0x87,0x63,0x9d,0x3b,0x40,0x96,0xc5,0x4f,0x18,0xf4,0x00,0x00,0x00,0x00}, + 4, + { /* recipient pubkeys (address data) */ + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x02,0x5c,0xc9,0x85,0x6d,0x6f,0x83,0x75,0x35,0x0e,0x12,0x39,0x78,0xda,0xac,0x20,0x0c,0x26,0x0c,0xb5,0xb5,0xae,0x83,0x10,0x6c,0xab,0x90,0x48,0x4d,0xcd,0x8f,0xcf,0x36}, + }, + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x03,0xa6,0x73,0x94,0x99,0xdc,0x66,0x7d,0x30,0x8b,0xae,0xfe,0xa4,0xde,0x0c,0x4a,0x85,0xcc,0x72,0xae,0xce,0x18,0x1b,0xc0,0x57,0x12,0xd3,0x91,0x96,0x62,0x61,0x0f,0xf1}, + }, + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x02,0x44,0xba,0xa5,0xcf,0x5d,0xb4,0x44,0xa9,0xe9,0x22,0x83,0x2f,0xf2,0xc8,0x87,0x16,0xb5,0x66,0xa8,0x5d,0x62,0xe8,0x23,0x5a,0xeb,0xd9,0x18,0x84,0xd4,0xf6,0x49,0x42}, + }, + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x02,0x44,0xba,0xa5,0xcf,0x5d,0xb4,0x44,0xa9,0xe9,0x22,0x83,0x2f,0xf2,0xc8,0x87,0x16,0xb5,0x66,0xa8,0x5d,0x62,0xe8,0x23,0x5a,0xeb,0xd9,0x18,0x84,0xd4,0xf6,0x49,0x42}, + } + }, + 12, + 4, + { /* recipient outputs */ + { + {0x00,0x6a,0x02,0xc3,0x08,0xcc,0xdb,0xf3,0xac,0x49,0xf0,0x63,0x8f,0x6d,0xe1,0x28,0xf8,0x75,0xdb,0x5a,0x21,0x30,0x95,0xcf,0x11,0x2b,0x3b,0x77,0x72,0x24,0x72,0xae}, + {0x39,0xf4,0x26,0x24,0xd5,0xc3,0x2a,0x77,0xfd,0xa8,0x0f,0xf0,0xac,0xee,0x26,0x9a,0xfe,0xc6,0x01,0xd3,0x79,0x18,0x03,0xe8,0x02,0x52,0xae,0x04,0xe4,0xff,0xcf,0x4c}, + {0xae,0x1a,0x78,0x0c,0x04,0x23,0x7b,0xd5,0x77,0x28,0x3c,0x3d,0xdb,0x2e,0x49,0x97,0x67,0xc3,0x21,0x41,0x60,0xd5,0xa6,0xb0,0x76,0x7e,0x6b,0x8c,0x27,0x8b,0xd7,0x01}, + {0xca,0x64,0xab,0xe1,0xe0,0xf7,0x37,0x82,0x3f,0xb9,0xa9,0x4f,0x59,0x7e,0xed,0x41,0x8f,0xb2,0xdf,0x77,0xb1,0x31,0x7e,0x26,0xb8,0x81,0xa1,0x4b,0xb5,0x94,0xfa,0xaa} + }, + { + {0x00,0x6a,0x02,0xc3,0x08,0xcc,0xdb,0xf3,0xac,0x49,0xf0,0x63,0x8f,0x6d,0xe1,0x28,0xf8,0x75,0xdb,0x5a,0x21,0x30,0x95,0xcf,0x11,0x2b,0x3b,0x77,0x72,0x24,0x72,0xae}, + {0x3e,0xdf,0x1f,0xf6,0x65,0x7c,0x6e,0x69,0x56,0x88,0x11,0xbd,0x72,0x6a,0x7a,0x7f,0x48,0x04,0x93,0xaa,0x42,0x16,0x1a,0xcf,0xe8,0xdd,0x4f,0x44,0x52,0x1f,0x99,0xed}, + {0x7e,0xe1,0x54,0x3e,0xd5,0xd1,0x23,0xff,0xa6,0x6f,0xbe,0xbc,0x12,0x8c,0x02,0x01,0x73,0xeb,0x49,0x0d,0x5f,0xa2,0xba,0x30,0x6e,0x0c,0x95,0x73,0xa7,0x7d,0xb8,0xf3}, + {0xca,0x64,0xab,0xe1,0xe0,0xf7,0x37,0x82,0x3f,0xb9,0xa9,0x4f,0x59,0x7e,0xed,0x41,0x8f,0xb2,0xdf,0x77,0xb1,0x31,0x7e,0x26,0xb8,0x81,0xa1,0x4b,0xb5,0x94,0xfa,0xaa} + }, + { + {0x00,0x6a,0x02,0xc3,0x08,0xcc,0xdb,0xf3,0xac,0x49,0xf0,0x63,0x8f,0x6d,0xe1,0x28,0xf8,0x75,0xdb,0x5a,0x21,0x30,0x95,0xcf,0x11,0x2b,0x3b,0x77,0x72,0x24,0x72,0xae}, + {0x7e,0xe1,0x54,0x3e,0xd5,0xd1,0x23,0xff,0xa6,0x6f,0xbe,0xbc,0x12,0x8c,0x02,0x01,0x73,0xeb,0x49,0x0d,0x5f,0xa2,0xba,0x30,0x6e,0x0c,0x95,0x73,0xa7,0x7d,0xb8,0xf3}, + {0x83,0xdc,0x94,0x4e,0x61,0x60,0x31,0x37,0x29,0x48,0x29,0xae,0xd5,0x6c,0x74,0xc9,0xb0,0x87,0xd8,0x0f,0x2c,0x02,0x1b,0x98,0xa7,0xfa,0xe5,0x79,0x90,0x00,0x69,0x6c}, + {0xae,0x1a,0x78,0x0c,0x04,0x23,0x7b,0xd5,0x77,0x28,0x3c,0x3d,0xdb,0x2e,0x49,0x97,0x67,0xc3,0x21,0x41,0x60,0xd5,0xa6,0xb0,0x76,0x7e,0x6b,0x8c,0x27,0x8b,0xd7,0x01} + }, + { + {0x39,0xf4,0x26,0x24,0xd5,0xc3,0x2a,0x77,0xfd,0xa8,0x0f,0xf0,0xac,0xee,0x26,0x9a,0xfe,0xc6,0x01,0xd3,0x79,0x18,0x03,0xe8,0x02,0x52,0xae,0x04,0xe4,0xff,0xcf,0x4c}, + {0x3c,0x54,0x44,0x49,0x44,0xd1,0x76,0x43,0x76,0x44,0x37,0x8c,0x23,0xef,0xb9,0x99,0xab,0x6a,0xb1,0xca,0xcd,0xfe,0x1d,0xc1,0x53,0x7b,0x60,0x7e,0x3d,0xf3,0x30,0xe2}, + {0xca,0x64,0xab,0xe1,0xe0,0xf7,0x37,0x82,0x3f,0xb9,0xa9,0x4f,0x59,0x7e,0xed,0x41,0x8f,0xb2,0xdf,0x77,0xb1,0x31,0x7e,0x26,0xb8,0x81,0xa1,0x4b,0xb5,0x94,0xfa,0xaa}, + {0xf4,0x56,0x9f,0xc5,0xf6,0x9c,0x10,0xf0,0x08,0x2c,0xfb,0xb8,0xe0,0x72,0xe6,0x26,0x6e,0xc5,0x5f,0x69,0xfb,0xa8,0xcf,0xfc,0xa4,0xcb,0xb4,0xc1,0x44,0xb7,0xe5,0x9b} + }, + { + {0x39,0xf4,0x26,0x24,0xd5,0xc3,0x2a,0x77,0xfd,0xa8,0x0f,0xf0,0xac,0xee,0x26,0x9a,0xfe,0xc6,0x01,0xd3,0x79,0x18,0x03,0xe8,0x02,0x52,0xae,0x04,0xe4,0xff,0xcf,0x4c}, + {0xae,0x1a,0x78,0x0c,0x04,0x23,0x7b,0xd5,0x77,0x28,0x3c,0x3d,0xdb,0x2e,0x49,0x97,0x67,0xc3,0x21,0x41,0x60,0xd5,0xa6,0xb0,0x76,0x7e,0x6b,0x8c,0x27,0x8b,0xd7,0x01}, + {0xf2,0x07,0x16,0x2b,0x1a,0x7a,0xbc,0x51,0xc4,0x20,0x17,0xbe,0xf0,0x55,0xe9,0xec,0x1e,0xfc,0x3d,0x35,0x67,0xcb,0x72,0x03,0x57,0xe2,0xb8,0x43,0x25,0xdb,0x33,0xac}, + {0xf4,0x56,0x9f,0xc5,0xf6,0x9c,0x10,0xf0,0x08,0x2c,0xfb,0xb8,0xe0,0x72,0xe6,0x26,0x6e,0xc5,0x5f,0x69,0xfb,0xa8,0xcf,0xfc,0xa4,0xcb,0xb4,0xc1,0x44,0xb7,0xe5,0x9b} + }, + { + {0x3c,0x54,0x44,0x49,0x44,0xd1,0x76,0x43,0x76,0x44,0x37,0x8c,0x23,0xef,0xb9,0x99,0xab,0x6a,0xb1,0xca,0xcd,0xfe,0x1d,0xc1,0x53,0x7b,0x60,0x7e,0x3d,0xf3,0x30,0xe2}, + {0x60,0x2e,0x10,0xe6,0x94,0x41,0x07,0xc9,0xb4,0x8b,0xd8,0x85,0xb4,0x93,0x67,0x65,0x78,0xc9,0x35,0x72,0x32,0x87,0xe0,0xab,0x2f,0x8b,0x7f,0x13,0x68,0x62,0x56,0x8e}, + {0x7e,0xe1,0x54,0x3e,0xd5,0xd1,0x23,0xff,0xa6,0x6f,0xbe,0xbc,0x12,0x8c,0x02,0x01,0x73,0xeb,0x49,0x0d,0x5f,0xa2,0xba,0x30,0x6e,0x0c,0x95,0x73,0xa7,0x7d,0xb8,0xf3}, + {0xca,0x64,0xab,0xe1,0xe0,0xf7,0x37,0x82,0x3f,0xb9,0xa9,0x4f,0x59,0x7e,0xed,0x41,0x8f,0xb2,0xdf,0x77,0xb1,0x31,0x7e,0x26,0xb8,0x81,0xa1,0x4b,0xb5,0x94,0xfa,0xaa} + }, + { + {0x3c,0x54,0x44,0x49,0x44,0xd1,0x76,0x43,0x76,0x44,0x37,0x8c,0x23,0xef,0xb9,0x99,0xab,0x6a,0xb1,0xca,0xcd,0xfe,0x1d,0xc1,0x53,0x7b,0x60,0x7e,0x3d,0xf3,0x30,0xe2}, + {0x7e,0xe1,0x54,0x3e,0xd5,0xd1,0x23,0xff,0xa6,0x6f,0xbe,0xbc,0x12,0x8c,0x02,0x01,0x73,0xeb,0x49,0x0d,0x5f,0xa2,0xba,0x30,0x6e,0x0c,0x95,0x73,0xa7,0x7d,0xb8,0xf3}, + {0x83,0xdc,0x94,0x4e,0x61,0x60,0x31,0x37,0x29,0x48,0x29,0xae,0xd5,0x6c,0x74,0xc9,0xb0,0x87,0xd8,0x0f,0x2c,0x02,0x1b,0x98,0xa7,0xfa,0xe5,0x79,0x90,0x00,0x69,0x6c}, + {0xf4,0x56,0x9f,0xc5,0xf6,0x9c,0x10,0xf0,0x08,0x2c,0xfb,0xb8,0xe0,0x72,0xe6,0x26,0x6e,0xc5,0x5f,0x69,0xfb,0xa8,0xcf,0xfc,0xa4,0xcb,0xb4,0xc1,0x44,0xb7,0xe5,0x9b} + }, + { + {0x3e,0xdf,0x1f,0xf6,0x65,0x7c,0x6e,0x69,0x56,0x88,0x11,0xbd,0x72,0x6a,0x7a,0x7f,0x48,0x04,0x93,0xaa,0x42,0x16,0x1a,0xcf,0xe8,0xdd,0x4f,0x44,0x52,0x1f,0x99,0xed}, + {0x7e,0xe1,0x54,0x3e,0xd5,0xd1,0x23,0xff,0xa6,0x6f,0xbe,0xbc,0x12,0x8c,0x02,0x01,0x73,0xeb,0x49,0x0d,0x5f,0xa2,0xba,0x30,0x6e,0x0c,0x95,0x73,0xa7,0x7d,0xb8,0xf3}, + {0xf2,0x07,0x16,0x2b,0x1a,0x7a,0xbc,0x51,0xc4,0x20,0x17,0xbe,0xf0,0x55,0xe9,0xec,0x1e,0xfc,0x3d,0x35,0x67,0xcb,0x72,0x03,0x57,0xe2,0xb8,0x43,0x25,0xdb,0x33,0xac}, + {0xf4,0x56,0x9f,0xc5,0xf6,0x9c,0x10,0xf0,0x08,0x2c,0xfb,0xb8,0xe0,0x72,0xe6,0x26,0x6e,0xc5,0x5f,0x69,0xfb,0xa8,0xcf,0xfc,0xa4,0xcb,0xb4,0xc1,0x44,0xb7,0xe5,0x9b} + }, + { + {0x3e,0xdf,0x1f,0xf6,0x65,0x7c,0x6e,0x69,0x56,0x88,0x11,0xbd,0x72,0x6a,0x7a,0x7f,0x48,0x04,0x93,0xaa,0x42,0x16,0x1a,0xcf,0xe8,0xdd,0x4f,0x44,0x52,0x1f,0x99,0xed}, + {0xca,0x64,0xab,0xe1,0xe0,0xf7,0x37,0x82,0x3f,0xb9,0xa9,0x4f,0x59,0x7e,0xed,0x41,0x8f,0xb2,0xdf,0x77,0xb1,0x31,0x7e,0x26,0xb8,0x81,0xa1,0x4b,0xb5,0x94,0xfa,0xaa}, + {0xe9,0x76,0xa5,0x8f,0xbd,0x38,0xae,0xb4,0xe6,0x09,0x3d,0x4d,0xf0,0x2e,0x9c,0x1d,0xe0,0xc4,0x51,0x3a,0xe0,0xc5,0x88,0xce,0xf6,0x8c,0xda,0x5b,0x2f,0x88,0x34,0xca}, + {0xf4,0x56,0x9f,0xc5,0xf6,0x9c,0x10,0xf0,0x08,0x2c,0xfb,0xb8,0xe0,0x72,0xe6,0x26,0x6e,0xc5,0x5f,0x69,0xfb,0xa8,0xcf,0xfc,0xa4,0xcb,0xb4,0xc1,0x44,0xb7,0xe5,0x9b} + }, + { + {0x60,0x2e,0x10,0xe6,0x94,0x41,0x07,0xc9,0xb4,0x8b,0xd8,0x85,0xb4,0x93,0x67,0x65,0x78,0xc9,0x35,0x72,0x32,0x87,0xe0,0xab,0x2f,0x8b,0x7f,0x13,0x68,0x62,0x56,0x8e}, + {0x7e,0xe1,0x54,0x3e,0xd5,0xd1,0x23,0xff,0xa6,0x6f,0xbe,0xbc,0x12,0x8c,0x02,0x01,0x73,0xeb,0x49,0x0d,0x5f,0xa2,0xba,0x30,0x6e,0x0c,0x95,0x73,0xa7,0x7d,0xb8,0xf3}, + {0xae,0x1a,0x78,0x0c,0x04,0x23,0x7b,0xd5,0x77,0x28,0x3c,0x3d,0xdb,0x2e,0x49,0x97,0x67,0xc3,0x21,0x41,0x60,0xd5,0xa6,0xb0,0x76,0x7e,0x6b,0x8c,0x27,0x8b,0xd7,0x01}, + {0xf2,0x07,0x16,0x2b,0x1a,0x7a,0xbc,0x51,0xc4,0x20,0x17,0xbe,0xf0,0x55,0xe9,0xec,0x1e,0xfc,0x3d,0x35,0x67,0xcb,0x72,0x03,0x57,0xe2,0xb8,0x43,0x25,0xdb,0x33,0xac} + }, + { + {0x60,0x2e,0x10,0xe6,0x94,0x41,0x07,0xc9,0xb4,0x8b,0xd8,0x85,0xb4,0x93,0x67,0x65,0x78,0xc9,0x35,0x72,0x32,0x87,0xe0,0xab,0x2f,0x8b,0x7f,0x13,0x68,0x62,0x56,0x8e}, + {0xae,0x1a,0x78,0x0c,0x04,0x23,0x7b,0xd5,0x77,0x28,0x3c,0x3d,0xdb,0x2e,0x49,0x97,0x67,0xc3,0x21,0x41,0x60,0xd5,0xa6,0xb0,0x76,0x7e,0x6b,0x8c,0x27,0x8b,0xd7,0x01}, + {0xca,0x64,0xab,0xe1,0xe0,0xf7,0x37,0x82,0x3f,0xb9,0xa9,0x4f,0x59,0x7e,0xed,0x41,0x8f,0xb2,0xdf,0x77,0xb1,0x31,0x7e,0x26,0xb8,0x81,0xa1,0x4b,0xb5,0x94,0xfa,0xaa}, + {0xe9,0x76,0xa5,0x8f,0xbd,0x38,0xae,0xb4,0xe6,0x09,0x3d,0x4d,0xf0,0x2e,0x9c,0x1d,0xe0,0xc4,0x51,0x3a,0xe0,0xc5,0x88,0xce,0xf6,0x8c,0xda,0x5b,0x2f,0x88,0x34,0xca} + }, + { + {0x83,0xdc,0x94,0x4e,0x61,0x60,0x31,0x37,0x29,0x48,0x29,0xae,0xd5,0x6c,0x74,0xc9,0xb0,0x87,0xd8,0x0f,0x2c,0x02,0x1b,0x98,0xa7,0xfa,0xe5,0x79,0x90,0x00,0x69,0x6c}, + {0xae,0x1a,0x78,0x0c,0x04,0x23,0x7b,0xd5,0x77,0x28,0x3c,0x3d,0xdb,0x2e,0x49,0x97,0x67,0xc3,0x21,0x41,0x60,0xd5,0xa6,0xb0,0x76,0x7e,0x6b,0x8c,0x27,0x8b,0xd7,0x01}, + {0xe9,0x76,0xa5,0x8f,0xbd,0x38,0xae,0xb4,0xe6,0x09,0x3d,0x4d,0xf0,0x2e,0x9c,0x1d,0xe0,0xc4,0x51,0x3a,0xe0,0xc5,0x88,0xce,0xf6,0x8c,0xda,0x5b,0x2f,0x88,0x34,0xca}, + {0xf4,0x56,0x9f,0xc5,0xf6,0x9c,0x10,0xf0,0x08,0x2c,0xfb,0xb8,0xe0,0x72,0xe6,0x26,0x6e,0xc5,0x5f,0x69,0xfb,0xa8,0xcf,0xfc,0xa4,0xcb,0xb4,0xc1,0x44,0xb7,0xe5,0x9b} + }, + }, + /* recipient data (scan and spend seckeys) */ + {0x0f,0x69,0x4e,0x06,0x80,0x28,0xa7,0x17,0xf8,0xaf,0x6b,0x94,0x11,0xf9,0xa1,0x33,0xdd,0x35,0x65,0x25,0x87,0x14,0xcc,0x22,0x65,0x94,0xb3,0x4d,0xb9,0x0c,0x1f,0x2c}, + {0x9d,0x6a,0xd8,0x55,0xce,0x34,0x17,0xef,0x84,0xe8,0x36,0x89,0x2e,0x5a,0x56,0x39,0x2b,0xfb,0xa0,0x5f,0xa5,0xd9,0x7c,0xce,0xa3,0x0e,0x26,0x6f,0x54,0x0e,0x08,0xb3}, + 4, + { /* outputs to scan */ + {0x00,0x6a,0x02,0xc3,0x08,0xcc,0xdb,0xf3,0xac,0x49,0xf0,0x63,0x8f,0x6d,0xe1,0x28,0xf8,0x75,0xdb,0x5a,0x21,0x30,0x95,0xcf,0x11,0x2b,0x3b,0x77,0x72,0x24,0x72,0xae}, + {0x39,0xf4,0x26,0x24,0xd5,0xc3,0x2a,0x77,0xfd,0xa8,0x0f,0xf0,0xac,0xee,0x26,0x9a,0xfe,0xc6,0x01,0xd3,0x79,0x18,0x03,0xe8,0x02,0x52,0xae,0x04,0xe4,0xff,0xcf,0x4c}, + {0xae,0x1a,0x78,0x0c,0x04,0x23,0x7b,0xd5,0x77,0x28,0x3c,0x3d,0xdb,0x2e,0x49,0x97,0x67,0xc3,0x21,0x41,0x60,0xd5,0xa6,0xb0,0x76,0x7e,0x6b,0x8c,0x27,0x8b,0xd7,0x01}, + {0xca,0x64,0xab,0xe1,0xe0,0xf7,0x37,0x82,0x3f,0xb9,0xa9,0x4f,0x59,0x7e,0xed,0x41,0x8f,0xb2,0xdf,0x77,0xb1,0x31,0x7e,0x26,0xb8,0x81,0xa1,0x4b,0xb5,0x94,0xfa,0xaa} + }, + 2, {1, 1337, 0xffffffff, 0xffffffff}, /* labels */ + /* expected output data (pubkeys and seckey tweaks) */ + 4, + { + {0x00,0x6a,0x02,0xc3,0x08,0xcc,0xdb,0xf3,0xac,0x49,0xf0,0x63,0x8f,0x6d,0xe1,0x28,0xf8,0x75,0xdb,0x5a,0x21,0x30,0x95,0xcf,0x11,0x2b,0x3b,0x77,0x72,0x24,0x72,0xae}, + {0x39,0xf4,0x26,0x24,0xd5,0xc3,0x2a,0x77,0xfd,0xa8,0x0f,0xf0,0xac,0xee,0x26,0x9a,0xfe,0xc6,0x01,0xd3,0x79,0x18,0x03,0xe8,0x02,0x52,0xae,0x04,0xe4,0xff,0xcf,0x4c}, + {0xae,0x1a,0x78,0x0c,0x04,0x23,0x7b,0xd5,0x77,0x28,0x3c,0x3d,0xdb,0x2e,0x49,0x97,0x67,0xc3,0x21,0x41,0x60,0xd5,0xa6,0xb0,0x76,0x7e,0x6b,0x8c,0x27,0x8b,0xd7,0x01}, + {0xca,0x64,0xab,0xe1,0xe0,0xf7,0x37,0x82,0x3f,0xb9,0xa9,0x4f,0x59,0x7e,0xed,0x41,0x8f,0xb2,0xdf,0x77,0xb1,0x31,0x7e,0x26,0xb8,0x81,0xa1,0x4b,0xb5,0x94,0xfa,0xaa} + }, + { + {0x4e,0x33,0x52,0xfb,0xe0,0x50,0x5c,0x25,0xe7,0x18,0xd9,0x60,0x07,0xc2,0x59,0xef,0x08,0xdb,0x34,0xf8,0xc8,0x44,0xe4,0xff,0x74,0x2d,0x98,0x55,0xff,0x03,0x80,0x5a}, + {0x43,0x10,0x0f,0x89,0xf1,0xa6,0xbf,0x10,0x08,0x1c,0x92,0xb4,0x73,0xff,0xc5,0x7c,0xea,0xc7,0xdb,0xed,0x60,0x0b,0x6a,0xba,0x9b,0xb3,0x97,0x6f,0x17,0xdb,0xb9,0x14}, + {0xbf,0x70,0x9f,0x98,0xd4,0x41,0x8f,0x8a,0x67,0xe7,0x38,0x15,0x4a,0xe4,0x88,0x18,0xda,0xd4,0x46,0x89,0xcd,0x37,0xfb,0xc0,0x70,0x89,0x1a,0x39,0x6d,0xd1,0xc6,0x33}, + {0x73,0x6f,0x05,0xe4,0xe3,0x07,0x2c,0x3b,0x86,0x56,0xbe,0xde,0xf2,0xe9,0xbf,0x54,0xcb,0xca,0xa2,0xb6,0xfe,0x53,0x20,0xd3,0xe8,0x6f,0x5b,0x96,0x87,0x4d,0xda,0x71} + }, + { + {0x6e,0xea,0xe1,0xea,0x9e,0xb8,0x26,0xe3,0xd0,0xe8,0x12,0xf6,0x59,0x37,0x10,0x0e,0x08,0x36,0xea,0x18,0x8c,0x04,0xf3,0x6f,0xab,0xc4,0x98,0x1e,0xda,0x29,0xde,0x8d,0x3d,0x35,0x29,0x39,0x0a,0x0a,0x8b,0x3d,0x83,0x0f,0x7b,0xca,0x4f,0x5e,0xae,0x59,0x94,0xb9,0x78,0x8d,0xda,0xf0,0x5a,0xd2,0x59,0xff,0xe2,0x6d,0x86,0x14,0x4b,0x4b}, + {0x15,0xc9,0x25,0x09,0xb6,0x7a,0x6c,0x21,0x1e,0xbb,0x4a,0x51,0xb7,0x52,0x8d,0x06,0x66,0xe6,0x72,0x0d,0xe2,0x34,0x3b,0x2e,0x92,0xcf,0xb9,0x79,0x42,0xca,0x14,0x69,0x3c,0x1f,0x1f,0xdc,0x84,0x51,0xac,0xfd,0xb2,0x64,0x40,0x39,0xf8,0xf5,0xc7,0x61,0x14,0x80,0x7f,0xdc,0x3d,0x3a,0x00,0x2d,0x8a,0x46,0xaf,0xab,0x67,0x56,0xbd,0x75}, + {0x42,0xa1,0x9f,0xd8,0xa6,0x3d,0xde,0x18,0x24,0x96,0x6a,0x95,0xd6,0x5a,0x28,0x20,0x3e,0x63,0x1e,0x49,0xbf,0x96,0xca,0x5d,0xae,0x1b,0x39,0x0e,0x7a,0x0a,0xce,0x2c,0xc8,0x70,0x9c,0x9b,0x0c,0x57,0x15,0x04,0x70,0x32,0xf5,0x7f,0x53,0x6a,0x3c,0x80,0x27,0x3c,0xbe,0xcf,0x4c,0x05,0xbe,0x0b,0x54,0x56,0xc1,0x83,0xfa,0x12,0x2c,0x06}, + {0x2e,0x61,0xbb,0x3d,0x79,0x41,0x8e,0xcf,0x55,0xf6,0x88,0x47,0xcf,0x12,0x1b,0xfc,0x12,0xd3,0x97,0xb3,0x9d,0x1d,0xa8,0x64,0x32,0x46,0xb2,0xf0,0xa9,0xb9,0x6c,0x3d,0xaa,0x4b,0xfe,0x96,0x51,0xbe,0xb5,0xc9,0xce,0x20,0xe1,0xf2,0x92,0x82,0xc4,0x56,0x64,0x00,0xa4,0xb4,0x5e,0xe6,0x65,0x7e,0xc3,0xb1,0x8f,0xdc,0x55,0x4d,0xa0,0xb4} + } + }, + + /* ----- Single recipient: use silent payments for sender change (19) ----- */ + { + 2, + { /* input plain seckeys */ + {0xea,0xdc,0x78,0x16,0x5f,0xf1,0xf8,0xea,0x94,0xad,0x7c,0xfd,0xc5,0x49,0x90,0x73,0x8a,0x4c,0x53,0xf6,0xe0,0x50,0x7b,0x42,0x15,0x42,0x01,0xb8,0xe5,0xdf,0xf3,0xb1}, + {0x03,0x78,0xe9,0x56,0x85,0xb7,0x45,0x65,0xfa,0x56,0x75,0x1b,0x84,0xa3,0x2d,0xfd,0x18,0x54,0x5d,0x10,0xd6,0x91,0x64,0x1b,0x83,0x72,0xe3,0x21,0x64,0xfa,0xd6,0x6a}, + "" + }, + { /* input plain pubkeys */ + {0x02,0x5a,0x1e,0x61,0xf8,0x98,0x17,0x30,0x40,0xe2,0x06,0x16,0xd4,0x3e,0x9f,0x49,0x6f,0xba,0x90,0x33,0x8a,0x39,0xfa,0xa1,0xed,0x98,0xfc,0xba,0xee,0xe4,0xdd,0x9b,0xe5}, + {0x03,0x78,0x2e,0xeb,0x91,0x34,0x31,0xca,0x6e,0x9b,0x8c,0x2f,0xd8,0x0a,0x5f,0x72,0xed,0x20,0x24,0xef,0x72,0xa3,0xc6,0xfb,0x10,0x26,0x3c,0x37,0x99,0x37,0x32,0x33,0x38}, + "" + }, + 0, + { /* input taproot seckeys */ + "", + "", + "" + }, + { /* input x-only pubkeys */ + "", + "", + "" + }, + /* smallest outpoint */ + {0x16,0x9e,0x1e,0x83,0xe9,0x30,0x85,0x33,0x91,0xbc,0x6f,0x35,0xf6,0x05,0xc6,0x75,0x4c,0xfe,0xad,0x57,0xcf,0x83,0x87,0x63,0x9d,0x3b,0x40,0x96,0xc5,0x4f,0x18,0xf4,0x00,0x00,0x00,0x00}, + 2, + { /* recipient pubkeys (address data) */ + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x02,0x5c,0xc9,0x85,0x6d,0x6f,0x83,0x75,0x35,0x0e,0x12,0x39,0x78,0xda,0xac,0x20,0x0c,0x26,0x0c,0xb5,0xb5,0xae,0x83,0x10,0x6c,0xab,0x90,0x48,0x4d,0xcd,0x8f,0xcf,0x36}, + }, + { + {0x03,0xb4,0xcc,0x0b,0x09,0x0b,0x6f,0x49,0xa6,0x84,0x55,0x88,0x52,0xdb,0x60,0xee,0x5e,0xb1,0xc5,0xf7,0x43,0x52,0x83,0x9c,0x3d,0x18,0xa8,0xfc,0x04,0xef,0x73,0x54,0xe0}, + {0x03,0xec,0xd4,0x3b,0x9f,0xda,0xd4,0x84,0xff,0x57,0x27,0x8b,0x21,0x87,0x8b,0x84,0x42,0x76,0xce,0x39,0x06,0x22,0xd0,0x3d,0xd0,0xcf,0xb4,0x28,0x8b,0x7e,0x02,0xa6,0xf5}, + }, + { + "", + "", + }, + { + "", + "", + } + }, + 1, + 2, + { /* recipient outputs */ + { + {0xbe,0x36,0x8e,0x28,0x97,0x9d,0x95,0x02,0x45,0xd7,0x42,0x89,0x1a,0xe6,0x06,0x40,0x20,0xba,0x54,0x8c,0x1e,0x2e,0x65,0xa6,0x39,0xa8,0xbb,0x06,0x75,0xd9,0x5c,0xff}, + {0xf2,0x07,0x16,0x2b,0x1a,0x7a,0xbc,0x51,0xc4,0x20,0x17,0xbe,0xf0,0x55,0xe9,0xec,0x1e,0xfc,0x3d,0x35,0x67,0xcb,0x72,0x03,0x57,0xe2,0xb8,0x43,0x25,0xdb,0x33,0xac}, + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + }, + /* recipient data (scan and spend seckeys) */ + {0x11,0xb7,0xa8,0x2e,0x06,0xca,0x26,0x48,0xd5,0xfd,0xed,0x23,0x66,0x47,0x80,0x78,0xec,0x4f,0xc9,0xdc,0x1d,0x8f,0xf4,0x87,0x51,0x82,0x26,0xf2,0x29,0xd7,0x68,0xfd}, + {0xb8,0xf8,0x73,0x88,0xcb,0xb4,0x19,0x34,0xc5,0x0d,0xac,0xa0,0x18,0x90,0x1b,0x00,0x07,0x0a,0x5f,0xf6,0xcc,0x25,0xa7,0xe9,0xe7,0x16,0xa9,0xd5,0xb9,0xe4,0xd6,0x64}, + 2, + { /* outputs to scan */ + {0xbe,0x36,0x8e,0x28,0x97,0x9d,0x95,0x02,0x45,0xd7,0x42,0x89,0x1a,0xe6,0x06,0x40,0x20,0xba,0x54,0x8c,0x1e,0x2e,0x65,0xa6,0x39,0xa8,0xbb,0x06,0x75,0xd9,0x5c,0xff}, + {0xf2,0x07,0x16,0x2b,0x1a,0x7a,0xbc,0x51,0xc4,0x20,0x17,0xbe,0xf0,0x55,0xe9,0xec,0x1e,0xfc,0x3d,0x35,0x67,0xcb,0x72,0x03,0x57,0xe2,0xb8,0x43,0x25,0xdb,0x33,0xac}, + "", + "" + }, + 1, {0, 0xffffffff, 0xffffffff, 0xffffffff}, /* labels */ + /* expected output data (pubkeys and seckey tweaks) */ + 1, + { + {0xbe,0x36,0x8e,0x28,0x97,0x9d,0x95,0x02,0x45,0xd7,0x42,0x89,0x1a,0xe6,0x06,0x40,0x20,0xba,0x54,0x8c,0x1e,0x2e,0x65,0xa6,0x39,0xa8,0xbb,0x06,0x75,0xd9,0x5c,0xff}, + "", + "", + "" + }, + { + {0x80,0xcd,0x76,0x7e,0xd2,0x0b,0xd0,0xbb,0x7d,0x8e,0xa5,0xe8,0x03,0xf8,0xc3,0x81,0x29,0x3a,0x62,0xe8,0xa0,0x73,0xcf,0x46,0xfb,0x00,0x81,0xda,0x46,0xe6,0x4e,0x1f}, + "", + "", + "" + }, + { + {0x7f,0xbd,0x50,0x74,0xcf,0x13,0x77,0x27,0x31,0x55,0xee,0xfa,0xfc,0x7c,0x33,0x0c,0xb6,0x1b,0x31,0xda,0x25,0x2f,0x22,0x20,0x6a,0xc2,0x75,0x30,0xd2,0xb2,0x56,0x70,0x40,0xd9,0xaf,0x78,0x08,0x34,0x2e,0xd4,0xa0,0x95,0x98,0xc2,0x6d,0x83,0x07,0x44,0x6e,0x4e,0xd7,0x70,0x79,0xe6,0xa2,0xe6,0x1f,0xea,0x73,0x6e,0x44,0xda,0x5f,0x5a}, + "", + "", + "" + } + }, + + /* ----- Single recipient: taproot input with NUMS point (20) ----- */ + { + 0, + { /* input plain seckeys */ + "", + "", + "" + }, + { /* input plain pubkeys */ + "", + "", + "" + }, + 1, + { /* input taproot seckeys */ + {0xfc,0x87,0x16,0xa9,0x7a,0x48,0xba,0x9a,0x05,0xa9,0x8a,0xe4,0x7b,0x5c,0xd2,0x01,0xa2,0x5a,0x7f,0xd5,0xd8,0xb7,0x3c,0x20,0x3c,0x5f,0x7b,0x6b,0x6b,0x3b,0x6a,0xd7}, + "", + "" + }, + { /* input x-only pubkeys */ + {0x78,0x2e,0xeb,0x91,0x34,0x31,0xca,0x6e,0x9b,0x8c,0x2f,0xd8,0x0a,0x5f,0x72,0xed,0x20,0x24,0xef,0x72,0xa3,0xc6,0xfb,0x10,0x26,0x3c,0x37,0x99,0x37,0x32,0x33,0x38}, + "", + "" + }, + /* smallest outpoint */ + {0x16,0x9e,0x1e,0x83,0xe9,0x30,0x85,0x33,0x91,0xbc,0x6f,0x35,0xf6,0x05,0xc6,0x75,0x4c,0xfe,0xad,0x57,0xcf,0x83,0x87,0x63,0x9d,0x3b,0x40,0x96,0xc5,0x4f,0x18,0xf4,0x00,0x00,0x00,0x00}, + 1, + { /* recipient pubkeys (address data) */ + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x02,0x5c,0xc9,0x85,0x6d,0x6f,0x83,0x75,0x35,0x0e,0x12,0x39,0x78,0xda,0xac,0x20,0x0c,0x26,0x0c,0xb5,0xb5,0xae,0x83,0x10,0x6c,0xab,0x90,0x48,0x4d,0xcd,0x8f,0xcf,0x36}, + }, + { + "", + "", + }, + { + "", + "", + }, + { + "", + "", + } + }, + 1, + 1, + { /* recipient outputs */ + { + {0x79,0xe7,0x98,0x97,0xc5,0x29,0x35,0xbf,0xd9,0x7f,0xc6,0xe0,0x76,0xa6,0x43,0x1a,0x0c,0x75,0x43,0xca,0x8c,0x31,0xe0,0xfc,0x3c,0xf7,0x19,0xbb,0x57,0x2c,0x84,0x2d}, + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + }, + /* recipient data (scan and spend seckeys) */ + {0x0f,0x69,0x4e,0x06,0x80,0x28,0xa7,0x17,0xf8,0xaf,0x6b,0x94,0x11,0xf9,0xa1,0x33,0xdd,0x35,0x65,0x25,0x87,0x14,0xcc,0x22,0x65,0x94,0xb3,0x4d,0xb9,0x0c,0x1f,0x2c}, + {0x9d,0x6a,0xd8,0x55,0xce,0x34,0x17,0xef,0x84,0xe8,0x36,0x89,0x2e,0x5a,0x56,0x39,0x2b,0xfb,0xa0,0x5f,0xa5,0xd9,0x7c,0xce,0xa3,0x0e,0x26,0x6f,0x54,0x0e,0x08,0xb3}, + 1, + { /* outputs to scan */ + {0x79,0xe7,0x98,0x97,0xc5,0x29,0x35,0xbf,0xd9,0x7f,0xc6,0xe0,0x76,0xa6,0x43,0x1a,0x0c,0x75,0x43,0xca,0x8c,0x31,0xe0,0xfc,0x3c,0xf7,0x19,0xbb,0x57,0x2c,0x84,0x2d}, + "", + "", + "" + }, + 0, {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, /* labels */ + /* expected output data (pubkeys and seckey tweaks) */ + 1, + { + {0x79,0xe7,0x98,0x97,0xc5,0x29,0x35,0xbf,0xd9,0x7f,0xc6,0xe0,0x76,0xa6,0x43,0x1a,0x0c,0x75,0x43,0xca,0x8c,0x31,0xe0,0xfc,0x3c,0xf7,0x19,0xbb,0x57,0x2c,0x84,0x2d}, + "", + "", + "" + }, + { + {0x3d,0xde,0xc3,0x23,0x26,0x09,0xd3,0x48,0xd6,0xb8,0xb5,0x31,0x23,0xb4,0xf4,0x0f,0x6d,0x4f,0x53,0x98,0xca,0x58,0x6f,0x08,0x7b,0x04,0x16,0xec,0x3b,0x85,0x14,0x96}, + "", + "", + "" + }, + { + {0xd7,0xd0,0x6e,0x3a,0xfb,0x68,0x36,0x30,0x31,0xe4,0xeb,0x18,0x03,0x5c,0x46,0xce,0xae,0x41,0xbd,0xbe,0xbe,0x78,0x88,0xa4,0x75,0x4b,0xc9,0x84,0x8c,0x59,0x64,0x36,0x86,0x9a,0xea,0xec,0xff,0x05,0x27,0x64,0x9a,0x1f,0x45,0x8b,0x71,0xc9,0xce,0xec,0xec,0x10,0xb5,0x35,0xc0,0x9d,0x01,0xd7,0x20,0x22,0x9a,0xa2,0x28,0x54,0x77,0x06}, + "", + "", + "" + } + }, + + /* ----- Pubkey extraction from malleated p2pkh (21) ----- */ + { + 3, + { /* input plain seckeys */ + {0xea,0xdc,0x78,0x16,0x5f,0xf1,0xf8,0xea,0x94,0xad,0x7c,0xfd,0xc5,0x49,0x90,0x73,0x8a,0x4c,0x53,0xf6,0xe0,0x50,0x7b,0x42,0x15,0x42,0x01,0xb8,0xe5,0xdf,0xf3,0xb1}, + {0x03,0x78,0xe9,0x56,0x85,0xb7,0x45,0x65,0xfa,0x56,0x75,0x1b,0x84,0xa3,0x2d,0xfd,0x18,0x54,0x5d,0x10,0xd6,0x91,0x64,0x1b,0x83,0x72,0xe3,0x21,0x64,0xfa,0xd6,0x6a}, + {0x72,0xb8,0xae,0x09,0x17,0x5c,0xa7,0x97,0x7f,0x04,0x99,0x3e,0x65,0x1d,0x88,0x68,0x1e,0xd9,0x32,0xdf,0xb9,0x2c,0x51,0x58,0xcd,0xf0,0x16,0x1d,0xd2,0x3f,0xda,0x6e} + }, + { /* input plain pubkeys */ + {0x02,0x5a,0x1e,0x61,0xf8,0x98,0x17,0x30,0x40,0xe2,0x06,0x16,0xd4,0x3e,0x9f,0x49,0x6f,0xba,0x90,0x33,0x8a,0x39,0xfa,0xa1,0xed,0x98,0xfc,0xba,0xee,0xe4,0xdd,0x9b,0xe5}, + {0x03,0x78,0x2e,0xeb,0x91,0x34,0x31,0xca,0x6e,0x9b,0x8c,0x2f,0xd8,0x0a,0x5f,0x72,0xed,0x20,0x24,0xef,0x72,0xa3,0xc6,0xfb,0x10,0x26,0x3c,0x37,0x99,0x37,0x32,0x33,0x38}, + {0x02,0xe0,0xec,0x4f,0x64,0xb3,0xfa,0x2e,0x46,0x3c,0xcf,0xcf,0x4e,0x85,0x6e,0x37,0xd5,0xe1,0xe2,0x02,0x75,0xbc,0x89,0xec,0x1d,0xef,0x9e,0xb0,0x98,0xef,0xf1,0xf8,0x5d} + }, + 0, + { /* input taproot seckeys */ + "", + "", + "" + }, + { /* input x-only pubkeys */ + "", + "", + "" + }, + /* smallest outpoint */ + {0x16,0x9e,0x1e,0x83,0xe9,0x30,0x85,0x33,0x91,0xbc,0x6f,0x35,0xf6,0x05,0xc6,0x75,0x4c,0xfe,0xad,0x57,0xcf,0x83,0x87,0x63,0x9d,0x3b,0x40,0x96,0xc5,0x4f,0x18,0xf4,0x00,0x00,0x00,0x00}, + 1, + { /* recipient pubkeys (address data) */ + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x02,0x5c,0xc9,0x85,0x6d,0x6f,0x83,0x75,0x35,0x0e,0x12,0x39,0x78,0xda,0xac,0x20,0x0c,0x26,0x0c,0xb5,0xb5,0xae,0x83,0x10,0x6c,0xab,0x90,0x48,0x4d,0xcd,0x8f,0xcf,0x36}, + }, + { + "", + "", + }, + { + "", + "", + }, + { + "", + "", + } + }, + 1, + 1, + { /* recipient outputs */ + { + {0x46,0x12,0xcd,0xbf,0x84,0x5c,0x66,0xc7,0x51,0x1d,0x70,0xaa,0xb4,0xd9,0xae,0xd1,0x1e,0x49,0xe4,0x8c,0xdb,0x8d,0x79,0x9d,0x78,0x71,0x01,0xcd,0xd0,0xd5,0x3e,0x4f}, + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + }, + /* recipient data (scan and spend seckeys) */ + {0x0f,0x69,0x4e,0x06,0x80,0x28,0xa7,0x17,0xf8,0xaf,0x6b,0x94,0x11,0xf9,0xa1,0x33,0xdd,0x35,0x65,0x25,0x87,0x14,0xcc,0x22,0x65,0x94,0xb3,0x4d,0xb9,0x0c,0x1f,0x2c}, + {0x9d,0x6a,0xd8,0x55,0xce,0x34,0x17,0xef,0x84,0xe8,0x36,0x89,0x2e,0x5a,0x56,0x39,0x2b,0xfb,0xa0,0x5f,0xa5,0xd9,0x7c,0xce,0xa3,0x0e,0x26,0x6f,0x54,0x0e,0x08,0xb3}, + 1, + { /* outputs to scan */ + {0x46,0x12,0xcd,0xbf,0x84,0x5c,0x66,0xc7,0x51,0x1d,0x70,0xaa,0xb4,0xd9,0xae,0xd1,0x1e,0x49,0xe4,0x8c,0xdb,0x8d,0x79,0x9d,0x78,0x71,0x01,0xcd,0xd0,0xd5,0x3e,0x4f}, + "", + "", + "" + }, + 0, {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, /* labels */ + /* expected output data (pubkeys and seckey tweaks) */ + 1, + { + {0x46,0x12,0xcd,0xbf,0x84,0x5c,0x66,0xc7,0x51,0x1d,0x70,0xaa,0xb4,0xd9,0xae,0xd1,0x1e,0x49,0xe4,0x8c,0xdb,0x8d,0x79,0x9d,0x78,0x71,0x01,0xcd,0xd0,0xd5,0x3e,0x4f}, + "", + "", + "" + }, + { + {0x10,0xbd,0xe9,0x78,0x1d,0xef,0x20,0xd7,0x70,0x1e,0x76,0x03,0xef,0x1b,0x1e,0x5e,0x71,0xc6,0x7b,0xae,0x71,0x54,0x81,0x88,0x14,0xe3,0xc8,0x1e,0xf5,0xb1,0xa3,0xd3}, + "", + "", + "" + }, + { + {0x61,0x37,0x96,0x9f,0x81,0x0e,0x9e,0x8e,0xf6,0xc9,0x75,0x50,0x10,0xe8,0x08,0xf5,0xdd,0x1a,0xed,0x70,0x58,0x82,0xe4,0x4d,0x7f,0x0a,0xe6,0x4e,0xb0,0xc5,0x09,0xec,0x8b,0x62,0xa0,0x67,0x1b,0xee,0x0d,0x59,0x14,0xac,0x27,0xd2,0xc4,0x63,0x44,0x3e,0x28,0xe9,0x99,0xd8,0x2d,0xc3,0xd3,0xa4,0x91,0x9f,0x09,0x38,0x72,0xd9,0x47,0xbb}, + "", + "", + "" + } + }, + + /* ----- P2PKH and P2WPKH Uncompressed Keys are skipped (22) ----- */ + { + 1, + { /* input plain seckeys */ + {0xea,0xdc,0x78,0x16,0x5f,0xf1,0xf8,0xea,0x94,0xad,0x7c,0xfd,0xc5,0x49,0x90,0x73,0x8a,0x4c,0x53,0xf6,0xe0,0x50,0x7b,0x42,0x15,0x42,0x01,0xb8,0xe5,0xdf,0xf3,0xb1}, + "", + "" + }, + { /* input plain pubkeys */ + {0x02,0x5a,0x1e,0x61,0xf8,0x98,0x17,0x30,0x40,0xe2,0x06,0x16,0xd4,0x3e,0x9f,0x49,0x6f,0xba,0x90,0x33,0x8a,0x39,0xfa,0xa1,0xed,0x98,0xfc,0xba,0xee,0xe4,0xdd,0x9b,0xe5}, + "", + "" + }, + 0, + { /* input taproot seckeys */ + "", + "", + "" + }, + { /* input x-only pubkeys */ + "", + "", + "" + }, + /* smallest outpoint */ + {0x16,0x9e,0x1e,0x83,0xe9,0x30,0x85,0x33,0x91,0xbc,0x6f,0x35,0xf6,0x05,0xc6,0x75,0x4c,0xfe,0xad,0x57,0xcf,0x83,0x87,0x63,0x9d,0x3b,0x40,0x96,0xc5,0x4f,0x18,0xf4,0x00,0x00,0x00,0x00}, + 1, + { /* recipient pubkeys (address data) */ + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x02,0x5c,0xc9,0x85,0x6d,0x6f,0x83,0x75,0x35,0x0e,0x12,0x39,0x78,0xda,0xac,0x20,0x0c,0x26,0x0c,0xb5,0xb5,0xae,0x83,0x10,0x6c,0xab,0x90,0x48,0x4d,0xcd,0x8f,0xcf,0x36}, + }, + { + "", + "", + }, + { + "", + "", + }, + { + "", + "", + } + }, + 1, + 1, + { /* recipient outputs */ + { + {0x67,0xfe,0xe2,0x77,0xda,0x9e,0x85,0x42,0xb5,0xd2,0xe6,0xf3,0x2d,0x66,0x0a,0x9b,0xbd,0x3f,0x0e,0x10,0x7c,0x2d,0x53,0x63,0x8a,0xb1,0xd8,0x69,0x08,0x88,0x82,0xd6}, + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + }, + /* recipient data (scan and spend seckeys) */ + {0x0f,0x69,0x4e,0x06,0x80,0x28,0xa7,0x17,0xf8,0xaf,0x6b,0x94,0x11,0xf9,0xa1,0x33,0xdd,0x35,0x65,0x25,0x87,0x14,0xcc,0x22,0x65,0x94,0xb3,0x4d,0xb9,0x0c,0x1f,0x2c}, + {0x9d,0x6a,0xd8,0x55,0xce,0x34,0x17,0xef,0x84,0xe8,0x36,0x89,0x2e,0x5a,0x56,0x39,0x2b,0xfb,0xa0,0x5f,0xa5,0xd9,0x7c,0xce,0xa3,0x0e,0x26,0x6f,0x54,0x0e,0x08,0xb3}, + 1, + { /* outputs to scan */ + {0x67,0xfe,0xe2,0x77,0xda,0x9e,0x85,0x42,0xb5,0xd2,0xe6,0xf3,0x2d,0x66,0x0a,0x9b,0xbd,0x3f,0x0e,0x10,0x7c,0x2d,0x53,0x63,0x8a,0xb1,0xd8,0x69,0x08,0x88,0x82,0xd6}, + "", + "", + "" + }, + 0, {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, /* labels */ + /* expected output data (pubkeys and seckey tweaks) */ + 1, + { + {0x67,0xfe,0xe2,0x77,0xda,0x9e,0x85,0x42,0xb5,0xd2,0xe6,0xf3,0x2d,0x66,0x0a,0x9b,0xbd,0x3f,0x0e,0x10,0x7c,0x2d,0x53,0x63,0x8a,0xb1,0xd8,0x69,0x08,0x88,0x82,0xd6}, + "", + "", + "" + }, + { + {0x68,0x8f,0xa3,0xae,0xb9,0x7d,0x2a,0x46,0xae,0x87,0xb0,0x35,0x91,0x92,0x1c,0x2e,0xaf,0x4b,0x50,0x5e,0xb0,0xdd,0xca,0x27,0x33,0xc9,0x47,0x01,0xe0,0x10,0x60,0xcf}, + "", + "", + "" + }, + { + {0x72,0xe7,0xad,0x57,0x3a,0xc2,0x32,0x55,0xd4,0x65,0x1d,0x5b,0x03,0x26,0xa2,0x00,0x49,0x65,0x88,0xac,0xb7,0xa4,0x89,0x4b,0x22,0x09,0x22,0x36,0xd5,0xed,0xa6,0xa0,0xa9,0xa4,0xd8,0x42,0x9b,0x02,0x2c,0x22,0x19,0x08,0x1f,0xef,0xce,0x5b,0x33,0x79,0x5c,0xae,0x48,0x8d,0x10,0xf5,0xea,0x94,0x38,0x84,0x9e,0xd8,0x35,0x36,0x24,0xf2}, + "", + "", + "" + } + }, + + /* ----- Skip invalid P2SH inputs (23) ----- */ + { + 1, + { /* input plain seckeys */ + {0xea,0xdc,0x78,0x16,0x5f,0xf1,0xf8,0xea,0x94,0xad,0x7c,0xfd,0xc5,0x49,0x90,0x73,0x8a,0x4c,0x53,0xf6,0xe0,0x50,0x7b,0x42,0x15,0x42,0x01,0xb8,0xe5,0xdf,0xf3,0xb1}, + "", + "" + }, + { /* input plain pubkeys */ + {0x02,0x5a,0x1e,0x61,0xf8,0x98,0x17,0x30,0x40,0xe2,0x06,0x16,0xd4,0x3e,0x9f,0x49,0x6f,0xba,0x90,0x33,0x8a,0x39,0xfa,0xa1,0xed,0x98,0xfc,0xba,0xee,0xe4,0xdd,0x9b,0xe5}, + "", + "" + }, + 0, + { /* input taproot seckeys */ + "", + "", + "" + }, + { /* input x-only pubkeys */ + "", + "", + "" + }, + /* smallest outpoint */ + {0x16,0x9e,0x1e,0x83,0xe9,0x30,0x85,0x33,0x91,0xbc,0x6f,0x35,0xf6,0x05,0xc6,0x75,0x4c,0xfe,0xad,0x57,0xcf,0x83,0x87,0x63,0x9d,0x3b,0x40,0x96,0xc5,0x4f,0x18,0xf4,0x00,0x00,0x00,0x00}, + 1, + { /* recipient pubkeys (address data) */ + { + {0x02,0x20,0xbc,0xfa,0xc5,0xb9,0x9e,0x04,0xad,0x1a,0x06,0xdd,0xfb,0x01,0x6e,0xe1,0x35,0x82,0x60,0x9d,0x60,0xb6,0x29,0x1e,0x98,0xd0,0x1a,0x9b,0xc9,0xa1,0x6c,0x96,0xd4}, + {0x02,0x5c,0xc9,0x85,0x6d,0x6f,0x83,0x75,0x35,0x0e,0x12,0x39,0x78,0xda,0xac,0x20,0x0c,0x26,0x0c,0xb5,0xb5,0xae,0x83,0x10,0x6c,0xab,0x90,0x48,0x4d,0xcd,0x8f,0xcf,0x36}, + }, + { + "", + "", + }, + { + "", + "", + }, + { + "", + "", + } + }, + 1, + 1, + { /* recipient outputs */ + { + {0x67,0xfe,0xe2,0x77,0xda,0x9e,0x85,0x42,0xb5,0xd2,0xe6,0xf3,0x2d,0x66,0x0a,0x9b,0xbd,0x3f,0x0e,0x10,0x7c,0x2d,0x53,0x63,0x8a,0xb1,0xd8,0x69,0x08,0x88,0x82,0xd6}, + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + }, + /* recipient data (scan and spend seckeys) */ + {0x0f,0x69,0x4e,0x06,0x80,0x28,0xa7,0x17,0xf8,0xaf,0x6b,0x94,0x11,0xf9,0xa1,0x33,0xdd,0x35,0x65,0x25,0x87,0x14,0xcc,0x22,0x65,0x94,0xb3,0x4d,0xb9,0x0c,0x1f,0x2c}, + {0x9d,0x6a,0xd8,0x55,0xce,0x34,0x17,0xef,0x84,0xe8,0x36,0x89,0x2e,0x5a,0x56,0x39,0x2b,0xfb,0xa0,0x5f,0xa5,0xd9,0x7c,0xce,0xa3,0x0e,0x26,0x6f,0x54,0x0e,0x08,0xb3}, + 1, + { /* outputs to scan */ + {0x67,0xfe,0xe2,0x77,0xda,0x9e,0x85,0x42,0xb5,0xd2,0xe6,0xf3,0x2d,0x66,0x0a,0x9b,0xbd,0x3f,0x0e,0x10,0x7c,0x2d,0x53,0x63,0x8a,0xb1,0xd8,0x69,0x08,0x88,0x82,0xd6}, + "", + "", + "" + }, + 0, {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, /* labels */ + /* expected output data (pubkeys and seckey tweaks) */ + 1, + { + {0x67,0xfe,0xe2,0x77,0xda,0x9e,0x85,0x42,0xb5,0xd2,0xe6,0xf3,0x2d,0x66,0x0a,0x9b,0xbd,0x3f,0x0e,0x10,0x7c,0x2d,0x53,0x63,0x8a,0xb1,0xd8,0x69,0x08,0x88,0x82,0xd6}, + "", + "", + "" + }, + { + {0x68,0x8f,0xa3,0xae,0xb9,0x7d,0x2a,0x46,0xae,0x87,0xb0,0x35,0x91,0x92,0x1c,0x2e,0xaf,0x4b,0x50,0x5e,0xb0,0xdd,0xca,0x27,0x33,0xc9,0x47,0x01,0xe0,0x10,0x60,0xcf}, + "", + "", + "" + }, + { + {0x72,0xe7,0xad,0x57,0x3a,0xc2,0x32,0x55,0xd4,0x65,0x1d,0x5b,0x03,0x26,0xa2,0x00,0x49,0x65,0x88,0xac,0xb7,0xa4,0x89,0x4b,0x22,0x09,0x22,0x36,0xd5,0xed,0xa6,0xa0,0xa9,0xa4,0xd8,0x42,0x9b,0x02,0x2c,0x22,0x19,0x08,0x1f,0xef,0xce,0x5b,0x33,0x79,0x5c,0xae,0x48,0x8d,0x10,0xf5,0xea,0x94,0x38,0x84,0x9e,0xd8,0x35,0x36,0x24,0xf2}, + "", + "", + "" + } + }, + + /* ----- Recipient ignores unrelated outputs (24) ----- */ + { + 1, + { /* input plain seckeys */ + {0x03,0x78,0xe9,0x56,0x85,0xb7,0x45,0x65,0xfa,0x56,0x75,0x1b,0x84,0xa3,0x2d,0xfd,0x18,0x54,0x5d,0x10,0xd6,0x91,0x64,0x1b,0x83,0x72,0xe3,0x21,0x64,0xfa,0xd6,0x6a}, + "", + "" + }, + { /* input plain pubkeys */ + {0x03,0x78,0x2e,0xeb,0x91,0x34,0x31,0xca,0x6e,0x9b,0x8c,0x2f,0xd8,0x0a,0x5f,0x72,0xed,0x20,0x24,0xef,0x72,0xa3,0xc6,0xfb,0x10,0x26,0x3c,0x37,0x99,0x37,0x32,0x33,0x38}, + "", + "" + }, + 1, + { /* input taproot seckeys */ + {0xea,0xdc,0x78,0x16,0x5f,0xf1,0xf8,0xea,0x94,0xad,0x7c,0xfd,0xc5,0x49,0x90,0x73,0x8a,0x4c,0x53,0xf6,0xe0,0x50,0x7b,0x42,0x15,0x42,0x01,0xb8,0xe5,0xdf,0xf3,0xb1}, + "", + "" + }, + { /* input x-only pubkeys */ + {0x5a,0x1e,0x61,0xf8,0x98,0x17,0x30,0x40,0xe2,0x06,0x16,0xd4,0x3e,0x9f,0x49,0x6f,0xba,0x90,0x33,0x8a,0x39,0xfa,0xa1,0xed,0x98,0xfc,0xba,0xee,0xe4,0xdd,0x9b,0xe5}, + "", + "" + }, + /* smallest outpoint */ + {0x16,0x9e,0x1e,0x83,0xe9,0x30,0x85,0x33,0x91,0xbc,0x6f,0x35,0xf6,0x05,0xc6,0x75,0x4c,0xfe,0xad,0x57,0xcf,0x83,0x87,0x63,0x9d,0x3b,0x40,0x96,0xc5,0x4f,0x18,0xf4,0x00,0x00,0x00,0x00}, + 1, + { /* recipient pubkeys (address data) */ + { + {0x02,0x06,0x2d,0x49,0xff,0xc0,0x27,0x87,0xd5,0x86,0xc6,0x08,0xdf,0xbe,0xc1,0x84,0xaa,0x91,0xa6,0x59,0x7d,0x97,0xb4,0x63,0xea,0x5c,0x6b,0xab,0xd9,0xd1,0x7a,0x95,0xa3}, + {0x03,0x81,0xeb,0x9a,0x9a,0x9e,0xc7,0x39,0xd5,0x27,0xc1,0x63,0x1b,0x31,0xb4,0x21,0x56,0x6f,0x5c,0x2a,0x47,0xb4,0xab,0x5b,0x1f,0x6a,0x68,0x6d,0xfb,0x68,0xea,0xb7,0x16}, + }, + { + "", + "", + }, + { + "", + "", + }, + { + "", + "", + } + }, + 1, + 1, + { /* recipient outputs */ + { + {0x84,0x17,0x92,0xc3,0x3c,0x9d,0xc6,0x19,0x3e,0x76,0x74,0x41,0x34,0x12,0x5d,0x40,0xad,0xd8,0xf2,0xf4,0xa9,0x64,0x75,0xf2,0x8b,0xa1,0x50,0xbe,0x03,0x2d,0x64,0xe8}, + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + }, + /* recipient data (scan and spend seckeys) */ + {0x0f,0x69,0x4e,0x06,0x80,0x28,0xa7,0x17,0xf8,0xaf,0x6b,0x94,0x11,0xf9,0xa1,0x33,0xdd,0x35,0x65,0x25,0x87,0x14,0xcc,0x22,0x65,0x94,0xb3,0x4d,0xb9,0x0c,0x1f,0x2c}, + {0x9d,0x6a,0xd8,0x55,0xce,0x34,0x17,0xef,0x84,0xe8,0x36,0x89,0x2e,0x5a,0x56,0x39,0x2b,0xfb,0xa0,0x5f,0xa5,0xd9,0x7c,0xce,0xa3,0x0e,0x26,0x6f,0x54,0x0e,0x08,0xb3}, + 2, + { /* outputs to scan */ + {0x84,0x17,0x92,0xc3,0x3c,0x9d,0xc6,0x19,0x3e,0x76,0x74,0x41,0x34,0x12,0x5d,0x40,0xad,0xd8,0xf2,0xf4,0xa9,0x64,0x75,0xf2,0x8b,0xa1,0x50,0xbe,0x03,0x2d,0x64,0xe8}, + {0x78,0x2e,0xeb,0x91,0x34,0x31,0xca,0x6e,0x9b,0x8c,0x2f,0xd8,0x0a,0x5f,0x72,0xed,0x20,0x24,0xef,0x72,0xa3,0xc6,0xfb,0x10,0x26,0x3c,0x37,0x99,0x37,0x32,0x33,0x38}, + "", + "" + }, + 0, {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, /* labels */ + /* expected output data (pubkeys and seckey tweaks) */ + 0, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + } + }, + + /* ----- Input keys sum up to zero / point at infinity: sending fails, receiver skips tx (25) ----- */ + { + 2, + { /* input plain seckeys */ + {0xa6,0xdf,0x6a,0x0b,0xb4,0x48,0x99,0x2a,0x30,0x1d,0xf4,0x25,0x8e,0x06,0xa8,0x9f,0xe7,0xcf,0x71,0x46,0xf5,0x9a,0xc3,0xbd,0x5f,0xf2,0x60,0x83,0xac,0xb2,0x2c,0xeb}, + {0x59,0x20,0x95,0xf4,0x4b,0xb7,0x66,0xd5,0xcf,0xe2,0x0b,0xda,0x71,0xf9,0x57,0x5e,0xd2,0xdf,0x6b,0x9f,0xb9,0xad,0xdc,0x7e,0x5f,0xdf,0xfe,0x09,0x23,0x84,0x14,0x56}, + "" + }, + { /* input plain pubkeys */ + {0x02,0x55,0x7e,0xf3,0xe5,0x5b,0x0a,0x52,0x48,0x9b,0x44,0x54,0xc1,0x16,0x9e,0x06,0xbd,0xea,0x43,0x68,0x7a,0x69,0xc1,0xf1,0x90,0xeb,0x50,0x78,0x16,0x44,0xab,0x69,0x75}, + {0x03,0x55,0x7e,0xf3,0xe5,0x5b,0x0a,0x52,0x48,0x9b,0x44,0x54,0xc1,0x16,0x9e,0x06,0xbd,0xea,0x43,0x68,0x7a,0x69,0xc1,0xf1,0x90,0xeb,0x50,0x78,0x16,0x44,0xab,0x69,0x75}, + "" + }, + 0, + { /* input taproot seckeys */ + "", + "", + "" + }, + { /* input x-only pubkeys */ + "", + "", + "" + }, + /* smallest outpoint */ + {0x4e,0x17,0x94,0x8a,0xbc,0xde,0x5c,0x24,0x71,0xc0,0x45,0x0f,0xc4,0x18,0x54,0x56,0x6e,0x3c,0x67,0xf2,0x06,0xf4,0xaf,0x80,0xae,0x16,0x5e,0xb2,0x47,0x61,0x28,0x3a,0x00,0x00,0x00,0x00}, + 1, + { /* recipient pubkeys (address data) */ + { + {0x02,0xc6,0x04,0x7f,0x94,0x41,0xed,0x7d,0x6d,0x30,0x45,0x40,0x6e,0x95,0xc0,0x7c,0xd8,0x5c,0x77,0x8e,0x4b,0x8c,0xef,0x3c,0xa7,0xab,0xac,0x09,0xb9,0x5c,0x70,0x9e,0xe5}, + {0x02,0x79,0xbe,0x66,0x7e,0xf9,0xdc,0xbb,0xac,0x55,0xa0,0x62,0x95,0xce,0x87,0x0b,0x07,0x02,0x9b,0xfc,0xdb,0x2d,0xce,0x28,0xd9,0x59,0xf2,0x81,0x5b,0x16,0xf8,0x17,0x98}, + }, + { + "", + "", + }, + { + "", + "", + }, + { + "", + "", + } + }, + 1, + 0, + { /* recipient outputs */ + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + }, + /* recipient data (scan and spend seckeys) */ + {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x02}, + {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01}, + 1, + { /* outputs to scan */ + {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}, + "", + "", + "" + }, + 0, {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff}, /* labels */ + /* expected output data (pubkeys and seckey tweaks) */ + 0, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + }, + { + "", + "", + "", + "" + } + } + +}; diff --git a/src/secp256k1/src/secp256k1.c b/src/secp256k1/src/secp256k1.c index 72d725a74e0fd..f7c26d4858531 100644 --- a/src/secp256k1/src/secp256k1.c +++ b/src/secp256k1/src/secp256k1.c @@ -833,3 +833,7 @@ int secp256k1_tagged_sha256(const secp256k1_context* ctx, unsigned char *hash32, #ifdef ENABLE_MODULE_ELLSWIFT # include "modules/ellswift/main_impl.h" #endif + +#ifdef ENABLE_MODULE_SILENTPAYMENTS +# include "modules/silentpayments/main_impl.h" +#endif diff --git a/src/secp256k1/src/tests.c b/src/secp256k1/src/tests.c index 6b401e52c0e56..f637d7fa09d25 100644 --- a/src/secp256k1/src/tests.c +++ b/src/secp256k1/src/tests.c @@ -7431,6 +7431,10 @@ static void run_ecdsa_wycheproof(void) { # include "modules/ellswift/tests_impl.h" #endif +#ifdef ENABLE_MODULE_SILENTPAYMENTS +# include "modules/silentpayments/tests_impl.h" +#endif + static void run_secp256k1_memczero_test(void) { unsigned char buf1[6] = {1, 2, 3, 4, 5, 6}; unsigned char buf2[sizeof(buf1)]; @@ -7783,6 +7787,10 @@ int main(int argc, char **argv) { run_ellswift_tests(); #endif +#ifdef ENABLE_MODULE_SILENTPAYMENTS + run_silentpayments_tests(); +#endif + /* util tests */ run_secp256k1_memczero_test(); run_secp256k1_byteorder_tests(); diff --git a/src/secp256k1/tools/bech32m.py b/src/secp256k1/tools/bech32m.py new file mode 100644 index 0000000000000..795e1538639c4 --- /dev/null +++ b/src/secp256k1/tools/bech32m.py @@ -0,0 +1,135 @@ +# Copyright (c) 2017, 2020 Pieter Wuille +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to deal +# in the Software without restriction, including without limitation the rights +# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +# copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in +# all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +# THE SOFTWARE. + +"""Reference implementation for Bech32/Bech32m and segwit addresses.""" + + +from enum import Enum + +class Encoding(Enum): + """Enumeration type to list the various supported encodings.""" + BECH32 = 1 + BECH32M = 2 + +CHARSET = "qpzry9x8gf2tvdw0s3jn54khce6mua7l" +BECH32M_CONST = 0x2bc830a3 + +def bech32_polymod(values): + """Internal function that computes the Bech32 checksum.""" + generator = [0x3b6a57b2, 0x26508e6d, 0x1ea119fa, 0x3d4233dd, 0x2a1462b3] + chk = 1 + for value in values: + top = chk >> 25 + chk = (chk & 0x1ffffff) << 5 ^ value + for i in range(5): + chk ^= generator[i] if ((top >> i) & 1) else 0 + return chk + + +def bech32_hrp_expand(hrp): + """Expand the HRP into values for checksum computation.""" + return [ord(x) >> 5 for x in hrp] + [0] + [ord(x) & 31 for x in hrp] + + +def bech32_verify_checksum(hrp, data): + """Verify a checksum given HRP and converted data characters.""" + const = bech32_polymod(bech32_hrp_expand(hrp) + data) + if const == 1: + return Encoding.BECH32 + if const == BECH32M_CONST: + return Encoding.BECH32M + return None + +def bech32_create_checksum(hrp, data, spec): + """Compute the checksum values given HRP and data.""" + values = bech32_hrp_expand(hrp) + data + const = BECH32M_CONST if spec == Encoding.BECH32M else 1 + polymod = bech32_polymod(values + [0, 0, 0, 0, 0, 0]) ^ const + return [(polymod >> 5 * (5 - i)) & 31 for i in range(6)] + + +def bech32_encode(hrp, data, spec): + """Compute a Bech32 string given HRP and data values.""" + combined = data + bech32_create_checksum(hrp, data, spec) + return hrp + '1' + ''.join([CHARSET[d] for d in combined]) + +def bech32_decode(bech): + """Validate a Bech32/Bech32m string, and determine HRP and data.""" + if ((any(ord(x) < 33 or ord(x) > 126 for x in bech)) or + (bech.lower() != bech and bech.upper() != bech)): + return (None, None, None) + bech = bech.lower() + pos = bech.rfind('1') + + # remove the requirement that bech32m be less than 90 chars + if pos < 1 or pos + 7 > len(bech): + return (None, None, None) + if not all(x in CHARSET for x in bech[pos+1:]): + return (None, None, None) + hrp = bech[:pos] + data = [CHARSET.find(x) for x in bech[pos+1:]] + spec = bech32_verify_checksum(hrp, data) + if spec is None: + return (None, None, None) + return (hrp, data[:-6], spec) + +def convertbits(data, frombits, tobits, pad=True): + """General power-of-2 base conversion.""" + acc = 0 + bits = 0 + ret = [] + maxv = (1 << tobits) - 1 + max_acc = (1 << (frombits + tobits - 1)) - 1 + for value in data: + if value < 0 or (value >> frombits): + return None + acc = ((acc << frombits) | value) & max_acc + bits += frombits + while bits >= tobits: + bits -= tobits + ret.append((acc >> bits) & maxv) + if pad: + if bits: + ret.append((acc << (tobits - bits)) & maxv) + elif bits >= frombits or ((acc << (tobits - bits)) & maxv): + return None + return ret + + +def decode(hrp, addr): + """Decode a segwit address.""" + hrpgot, data, spec = bech32_decode(addr) + if hrpgot != hrp: + return (None, None) + decoded = convertbits(data[1:], 5, 8, False) + if decoded is None or len(decoded) < 2: + return (None, None) + if data[0] > 16: + return (None, None) + return (data[0], decoded) + + +def encode(hrp, witver, witprog): + """Encode a segwit address.""" + spec = Encoding.BECH32 if witver == 0 else Encoding.BECH32M + ret = bech32_encode(hrp, [witver] + convertbits(witprog, 8, 5), spec) + if decode(hrp, ret) == (None, None): + return None + return ret diff --git a/src/secp256k1/tools/ripemd160.py b/src/secp256k1/tools/ripemd160.py new file mode 100644 index 0000000000000..12801364b406a --- /dev/null +++ b/src/secp256k1/tools/ripemd160.py @@ -0,0 +1,130 @@ +# Copyright (c) 2021 Pieter Wuille +# Distributed under the MIT software license, see the accompanying +# file COPYING or http://www.opensource.org/licenses/mit-license.php. +"""Test-only pure Python RIPEMD160 implementation.""" + +import unittest + +# Message schedule indexes for the left path. +ML = [ + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, + 7, 4, 13, 1, 10, 6, 15, 3, 12, 0, 9, 5, 2, 14, 11, 8, + 3, 10, 14, 4, 9, 15, 8, 1, 2, 7, 0, 6, 13, 11, 5, 12, + 1, 9, 11, 10, 0, 8, 12, 4, 13, 3, 7, 15, 14, 5, 6, 2, + 4, 0, 5, 9, 7, 12, 2, 10, 14, 1, 3, 8, 11, 6, 15, 13 +] + +# Message schedule indexes for the right path. +MR = [ + 5, 14, 7, 0, 9, 2, 11, 4, 13, 6, 15, 8, 1, 10, 3, 12, + 6, 11, 3, 7, 0, 13, 5, 10, 14, 15, 8, 12, 4, 9, 1, 2, + 15, 5, 1, 3, 7, 14, 6, 9, 11, 8, 12, 2, 10, 0, 4, 13, + 8, 6, 4, 1, 3, 11, 15, 0, 5, 12, 2, 13, 9, 7, 10, 14, + 12, 15, 10, 4, 1, 5, 8, 7, 6, 2, 13, 14, 0, 3, 9, 11 +] + +# Rotation counts for the left path. +RL = [ + 11, 14, 15, 12, 5, 8, 7, 9, 11, 13, 14, 15, 6, 7, 9, 8, + 7, 6, 8, 13, 11, 9, 7, 15, 7, 12, 15, 9, 11, 7, 13, 12, + 11, 13, 6, 7, 14, 9, 13, 15, 14, 8, 13, 6, 5, 12, 7, 5, + 11, 12, 14, 15, 14, 15, 9, 8, 9, 14, 5, 6, 8, 6, 5, 12, + 9, 15, 5, 11, 6, 8, 13, 12, 5, 12, 13, 14, 11, 8, 5, 6 +] + +# Rotation counts for the right path. +RR = [ + 8, 9, 9, 11, 13, 15, 15, 5, 7, 7, 8, 11, 14, 14, 12, 6, + 9, 13, 15, 7, 12, 8, 9, 11, 7, 7, 12, 7, 6, 15, 13, 11, + 9, 7, 15, 11, 8, 6, 6, 14, 12, 13, 5, 14, 13, 13, 7, 5, + 15, 5, 8, 11, 14, 14, 6, 14, 6, 9, 12, 9, 12, 5, 15, 8, + 8, 5, 12, 9, 12, 5, 14, 6, 8, 13, 6, 5, 15, 13, 11, 11 +] + +# K constants for the left path. +KL = [0, 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xa953fd4e] + +# K constants for the right path. +KR = [0x50a28be6, 0x5c4dd124, 0x6d703ef3, 0x7a6d76e9, 0] + + +def fi(x, y, z, i): + """The f1, f2, f3, f4, and f5 functions from the specification.""" + if i == 0: + return x ^ y ^ z + elif i == 1: + return (x & y) | (~x & z) + elif i == 2: + return (x | ~y) ^ z + elif i == 3: + return (x & z) | (y & ~z) + elif i == 4: + return x ^ (y | ~z) + else: + assert False + + +def rol(x, i): + """Rotate the bottom 32 bits of x left by i bits.""" + return ((x << i) | ((x & 0xffffffff) >> (32 - i))) & 0xffffffff + + +def compress(h0, h1, h2, h3, h4, block): + """Compress state (h0, h1, h2, h3, h4) with block.""" + # Left path variables. + al, bl, cl, dl, el = h0, h1, h2, h3, h4 + # Right path variables. + ar, br, cr, dr, er = h0, h1, h2, h3, h4 + # Message variables. + x = [int.from_bytes(block[4*i:4*(i+1)], 'little') for i in range(16)] + + # Iterate over the 80 rounds of the compression. + for j in range(80): + rnd = j >> 4 + # Perform left side of the transformation. + al = rol(al + fi(bl, cl, dl, rnd) + x[ML[j]] + KL[rnd], RL[j]) + el + al, bl, cl, dl, el = el, al, bl, rol(cl, 10), dl + # Perform right side of the transformation. + ar = rol(ar + fi(br, cr, dr, 4 - rnd) + x[MR[j]] + KR[rnd], RR[j]) + er + ar, br, cr, dr, er = er, ar, br, rol(cr, 10), dr + + # Compose old state, left transform, and right transform into new state. + return h1 + cl + dr, h2 + dl + er, h3 + el + ar, h4 + al + br, h0 + bl + cr + + +def ripemd160(data): + """Compute the RIPEMD-160 hash of data.""" + # Initialize state. + state = (0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476, 0xc3d2e1f0) + # Process full 64-byte blocks in the input. + for b in range(len(data) >> 6): + state = compress(*state, data[64*b:64*(b+1)]) + # Construct final blocks (with padding and size). + pad = b"\x80" + b"\x00" * ((119 - len(data)) & 63) + fin = data[len(data) & ~63:] + pad + (8 * len(data)).to_bytes(8, 'little') + # Process final blocks. + for b in range(len(fin) >> 6): + state = compress(*state, fin[64*b:64*(b+1)]) + # Produce output. + return b"".join((h & 0xffffffff).to_bytes(4, 'little') for h in state) + + +class TestFrameworkKey(unittest.TestCase): + def test_ripemd160(self): + """RIPEMD-160 test vectors.""" + # See https://homes.esat.kuleuven.be/~bosselae/ripemd160.html + for msg, hexout in [ + (b"", "9c1185a5c5e9fc54612808977ee8f548b2258d31"), + (b"a", "0bdc9d2d256b3ee9daae347be6f4dc835a467ffe"), + (b"abc", "8eb208f7e05d987a9b044a8e98c6b087f15a0bfc"), + (b"message digest", "5d0689ef49d2fae572b881b123a85ffa21595f36"), + (b"abcdefghijklmnopqrstuvwxyz", + "f71c27109c692c1b56bbdceb5b9d2865b3708dbc"), + (b"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq", + "12a053384a9c0c88e405a06c27dcf49ada62eb2b"), + (b"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789", + "b0e20b6e3116640286ed3a87a5713079b21f5189"), + (b"1234567890" * 8, "9b752e45573d4b39f4dbd3323cab82bf63326bfb"), + (b"a" * 1000000, "52783243c1697bdbe16d37f97f68f08325dc1528") + ]: + self.assertEqual(ripemd160(msg).hex(), hexout) diff --git a/src/secp256k1/tools/tests_silentpayments_generate.py b/src/secp256k1/tools/tests_silentpayments_generate.py new file mode 100755 index 0000000000000..de50a55ba006d --- /dev/null +++ b/src/secp256k1/tools/tests_silentpayments_generate.py @@ -0,0 +1,303 @@ +#!/usr/bin/env python3 +import hashlib +import json +import sys + +import bech32m +import ripemd160 + +NUMS_H = bytes.fromhex("50929b74c1a04954b78b4b6035e97a5e078a5a0f28ec96d547bfee9ace803ac0") +MAX_INPUTS_PER_TEST_CASE = 3 +MAX_OUTPUTS_PER_TEST_CASE = 4 +MAX_PERMUTATIONS_PER_SENDING_TEST_CASE = 12 + +def sha256(s): + return hashlib.sha256(s).digest() + +def hash160(s): + return ripemd160.ripemd160(sha256(s)) + +def smallest_outpoint(outpoints): + serialized_outpoints = [bytes.fromhex(txid)[::-1] + n.to_bytes(4, 'little') for txid, n in outpoints] + return sorted(serialized_outpoints)[0] + +def decode_silent_payments_address(address): + _, data = bech32m.decode("sp", address) + data = bytes(data) # convert from list to bytes + assert len(data) == 66 + return data[:33], data[33:] + +def is_p2tr(s): # OP_1 OP_PUSHBYTES_32 <32 bytes> + return (len(s) == 34) and (s[0] == 0x51) and (s[1] == 0x20) + +def is_p2wpkh(s): # OP_0 OP_PUSHBYTES_20 <20 bytes> + return (len(s) == 22) and (s[0] == 0x00) and (s[1] == 0x14) + +def is_p2sh(s): # OP_HASH160 OP_PUSHBYTES_20 <20 bytes> OP_EQUAL + return (len(s) == 23) and (s[0] == 0xA9) and (s[1] == 0x14) and (s[-1] == 0x87) + +def is_p2pkh(s): # OP_DUP OP_HASH160 OP_PUSHBYTES_20 <20 bytes> OP_EQUALVERIFY OP_CHECKSIG + return (len(s) == 25) and (s[0] == 0x76) and (s[1] == 0xA9) and (s[2] == 0x14) and \ + (s[-2] == 0x88) and (s[-1] == 0xAC) + +def get_pubkey_from_input(spk, script_sig, witness): + # build witness stack from raw witness data + witness_stack = [] + no_witness_items = 0 + if len(witness) > 0: + no_witness_items = witness[0] + witness = witness[1:] + for i in range(no_witness_items): + item_len = witness[0] + witness_stack.append(witness[1:item_len+1]) + witness = witness[item_len+1:] + + if is_p2pkh(spk): + spk_pkh = spk[3:3 + 20] + for i in range(len(script_sig), 0, -1): + if i - 33 >= 0: + pk = script_sig[i - 33:i] + if hash160(pk) == spk_pkh: + return pk + elif is_p2sh(spk) and is_p2wpkh(script_sig[1:]): + pubkey = witness_stack[-1] + if len(pubkey) == 33: + return pubkey + elif is_p2wpkh(spk): + # the witness must contain two items and the second item is the pubkey + pubkey = witness_stack[-1] + if len(pubkey) == 33: + return pubkey + elif is_p2tr(spk): + if len(witness_stack) > 1 and witness_stack[-1][0] == 0x50: + witness_stack.pop() + if len(witness_stack) > 1: # script-path spend? + control_block = witness_stack[-1] + internal_key = control_block[1:33] + if internal_key == NUMS_H: # skip + return b'' + return spk[2:] + + return b'' + +def to_c_array(x): + if x == "": + return "" + s = ',0x'.join(a+b for a,b in zip(x[::2], x[1::2])) + return "0x" + s + +def emit_key_material(comment, keys, include_count=False): + global out + if include_count: + out += f" {len(keys)}," + "\n" + out += f" {{ /* {comment} */" + "\n" + for i in range(MAX_INPUTS_PER_TEST_CASE): + out += " " + if i < len(keys): + out += "{" + out += to_c_array(keys[i]) + out += "}" + else: + out += '""' + if i != MAX_INPUTS_PER_TEST_CASE - 1: + out += ',' + out += "\n" + out += " },\n" + +def emit_recipient_addr_material(recipient_addresses): + global out + out += f" {len(recipient_addresses)}," + "\n" + out += " { /* recipient pubkeys (address data) */\n" + for i in range(MAX_OUTPUTS_PER_TEST_CASE): + out += " {\n" + if i < len(recipient_addresses): + B_scan, B_spend = decode_silent_payments_address(recipient_addresses[i]) + out += " {" + out += to_c_array(B_scan.hex()) + out += "},\n" + out += " {" + out += to_c_array(B_spend.hex()) + out += "},\n" + else: + out += ' "",\n' + out += ' "",\n' + out += " }" + if i != MAX_OUTPUTS_PER_TEST_CASE - 1: + out += ',' + out += "\n" + out += " },\n" + +def emit_sending_outputs(comment, output_sets, include_count=False): + global out + if include_count: + out += f" {len(output_sets)}," + "\n" + out += f" {len(output_sets[0])}," + "\n" + if comment: + out += f" {{ /* {comment} */" + "\n" + else: + out += " {\n" + for i in range(MAX_PERMUTATIONS_PER_SENDING_TEST_CASE): + if i < len(output_sets): + emit_outputs(comment=None, outputs=output_sets[i], include_count=False, spacing=12) + else: + emit_outputs(comment=None, outputs=[], include_count=False, spacing=12) + out += " }" + out += "," + out += "\n" + +def emit_outputs(comment, outputs, include_count=False, last=False, spacing=8): + global out + if include_count: + out += spacing*" " + f"{len(outputs)}," + "\n" + if comment: + out += spacing*" " + f"{{ /* {comment} */" + "\n" + else: + out += spacing*" " + "{\n" + for i in range(MAX_OUTPUTS_PER_TEST_CASE): + if i < len(outputs): + out += spacing*" " + " {" + out += to_c_array(outputs[i]) + out += "}" + else: + out += spacing*' ' + ' ""' + if i != MAX_OUTPUTS_PER_TEST_CASE - 1: + out += ',' + out += "\n" + out += spacing*" " + "}" + if not last: + out += "," + out += "\n" + +filename_input = sys.argv[1] +with open(filename_input) as f: + test_vectors = json.load(f) + +out = "" +num_vectors = 0 + +for test_nr, test_vector in enumerate(test_vectors): + # determine input private and public keys, grouped into plain and taproot/x-only + input_plain_seckeys = [] + input_taproot_seckeys = [] + input_plain_pubkeys = [] + input_xonly_pubkeys = [] + outpoints = [] + for i in test_vector['sending'][0]['given']['vin']: + pub_key = get_pubkey_from_input(bytes.fromhex(i['prevout']['scriptPubKey']['hex']), + bytes.fromhex(i['scriptSig']), bytes.fromhex(i['txinwitness'])) + if len(pub_key) == 33: # regular input + input_plain_seckeys.append(i['private_key']) + input_plain_pubkeys.append(pub_key.hex()) + elif len(pub_key) == 32: # taproot input + input_taproot_seckeys.append(i['private_key']) + input_xonly_pubkeys.append(pub_key.hex()) + outpoints.append((i['txid'], i['vout'])) + if len(input_plain_pubkeys) == 0 and len(input_xonly_pubkeys) == 0: + continue + + num_vectors += 1 + out += f" /* ----- {test_vector['comment']} ({num_vectors}) ----- */\n" + out += " {\n" + + outpoint_L = smallest_outpoint(outpoints).hex() + emit_key_material("input plain seckeys", input_plain_seckeys, include_count=True) + emit_key_material("input plain pubkeys", input_plain_pubkeys) + emit_key_material("input taproot seckeys", input_taproot_seckeys, include_count=True) + emit_key_material("input x-only pubkeys", input_xonly_pubkeys) + out += " /* smallest outpoint */\n" + out += " {" + out += to_c_array(outpoint_L) + out += "},\n" + + # emit recipient pubkeys (address data) + emit_recipient_addr_material(test_vector['sending'][0]['given']['recipients']) + # emit recipient outputs + emit_sending_outputs("recipient outputs", test_vector['sending'][0]['expected']['outputs'], include_count=True) + + # emit recipient scan/spend seckeys + recv_test_given = test_vector['receiving'][0]['given'] + recv_test_expected = test_vector['receiving'][0]['expected'] + out += " /* recipient data (scan and spend seckeys) */\n" + out += " {" + f"{to_c_array(recv_test_given['key_material']['scan_priv_key'])}" + "},\n" + out += " {" + f"{to_c_array(recv_test_given['key_material']['spend_priv_key'])}" + "},\n" + + # emit recipient to-scan outputs, labels and expected-found outputs + emit_outputs("outputs to scan", recv_test_given['outputs'], include_count=True) + labels = recv_test_given['labels'] + out += f" {len(labels)}, " + "{" + for i in range(4): + if i < len(labels): + out += f"{labels[i]}" + else: + out += "0xffffffff" + if i != 3: + out += ", " + out += "}, /* labels */\n" + expected_pubkeys = [o['pub_key'] for o in recv_test_expected['outputs']] + expected_tweaks = [o['priv_key_tweak'] for o in recv_test_expected['outputs']] + expected_signatures = [o['signature'] for o in recv_test_expected['outputs']] + out += " /* expected output data (pubkeys and seckey tweaks) */\n" + emit_outputs("", expected_pubkeys, include_count=True) + emit_outputs("", expected_tweaks) + emit_outputs("", expected_signatures, last=True) + + out += " }" + if test_nr != len(test_vectors)-1: + out += "," + out += "\n\n" + +STRUCT_DEFINITIONS = f""" +#define MAX_INPUTS_PER_TEST_CASE {MAX_INPUTS_PER_TEST_CASE} +#define MAX_OUTPUTS_PER_TEST_CASE {MAX_OUTPUTS_PER_TEST_CASE} +#define MAX_PERMUTATIONS_PER_SENDING_TEST_CASE {MAX_PERMUTATIONS_PER_SENDING_TEST_CASE} + +struct bip352_recipient_addressdata {{ + unsigned char scan_pubkey[33]; + unsigned char spend_pubkey[33]; +}}; + +struct bip352_test_vector {{ + /* Inputs (private keys / public keys + smallest outpoint) */ + size_t num_plain_inputs; + unsigned char plain_seckeys[MAX_INPUTS_PER_TEST_CASE][32]; + unsigned char plain_pubkeys[MAX_INPUTS_PER_TEST_CASE][33]; + + size_t num_taproot_inputs; + unsigned char taproot_seckeys[MAX_INPUTS_PER_TEST_CASE][32]; + unsigned char xonly_pubkeys[MAX_INPUTS_PER_TEST_CASE][32]; + + unsigned char outpoint_smallest[36]; + + /* Given sender data (pubkeys encoded per output address to send to) */ + size_t num_outputs; + struct bip352_recipient_addressdata recipient_pubkeys[MAX_OUTPUTS_PER_TEST_CASE]; + + /* Expected sender data */ + size_t num_output_sets; + size_t num_recipient_outputs; + unsigned char recipient_outputs[MAX_PERMUTATIONS_PER_SENDING_TEST_CASE][MAX_OUTPUTS_PER_TEST_CASE][32]; + + /* Given recipient data */ + unsigned char scan_seckey[32]; + unsigned char spend_seckey[32]; + size_t num_to_scan_outputs; + unsigned char to_scan_outputs[MAX_OUTPUTS_PER_TEST_CASE][32]; + size_t num_labels; + unsigned int label_integers[MAX_OUTPUTS_PER_TEST_CASE]; + + /* Expected recipient data */ + size_t num_found_output_pubkeys; + unsigned char found_output_pubkeys[MAX_OUTPUTS_PER_TEST_CASE][32]; + unsigned char found_seckey_tweaks[MAX_OUTPUTS_PER_TEST_CASE][32]; + unsigned char found_signatures[MAX_OUTPUTS_PER_TEST_CASE][64]; +}}; +""" + +print("/* Note: this file was autogenerated using tests_silentpayments_generate.py. Do not edit. */") +print(f"#define SECP256K1_SILENTPAYMENTS_NUMBER_TESTVECTORS ({num_vectors})") + +print(STRUCT_DEFINITIONS) + +print("static const struct bip352_test_vector bip352_test_vectors[SECP256K1_SILENTPAYMENTS_NUMBER_TESTVECTORS] = {") +print(out, end='') +print("};")