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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,19 @@ | ||
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| AM_CPPFLAGS = -I.. -I../include -I../inline -I../lib -Issl $(DEPS_CFLAGS) | ||
| AM_CFLAGS = -ggdb | ||
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| LDADD = $(DEPS_LIBS) | ||
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| # libnfdecode sources | ||
| decode = dns/dns.c dns/dns.h | ||
| decode += ssl/ssl.c ssl/ssl.h ja3/ja3.c ja3/ja3.h ja4/ja4.c ja4/ja4.h | ||
| decode += digest/md5.c digest/md5.h digest/sha256.c digest/sha256.h | ||
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| if JA4 | ||
| decode += ja4/ja4s.c ja4/ja4s.h | ||
| endif | ||
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| noinst_LIBRARIES = libnfdecode.a | ||
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| libnfdecode_a_SOURCES = $(decode) |
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| Original file line number | Diff line number | Diff line change |
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| /* | ||
| * FIPS 180-2 SHA-224/256/384/512 implementation | ||
| * Last update: 02/02/2007 | ||
| * Issue date: 04/30/2005 | ||
| * | ||
| * Copyright (C) 2013, Con Kolivas <[email protected]> | ||
| * Copyright (C) 2005, 2007 Olivier Gay <[email protected]> | ||
| * All rights reserved. | ||
| * | ||
| * Redistribution and use in source and binary forms, with or without | ||
| * modification, are permitted provided that the following conditions | ||
| * are met: | ||
| * 1. Redistributions of source code must retain the above copyright | ||
| * notice, this list of conditions and the following disclaimer. | ||
| * 2. Redistributions in binary form must reproduce the above copyright | ||
| * notice, this list of conditions and the following disclaimer in the | ||
| * documentation and/or other materials provided with the distribution. | ||
| * 3. Neither the name of the project nor the names of its contributors | ||
| * may be used to endorse or promote products derived from this software | ||
| * without specific prior written permission. | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND | ||
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
| * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE | ||
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
| * SUCH DAMAGE. | ||
| */ | ||
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| #include "sha256.h" | ||
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| #include <string.h> | ||
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| #define SHA256_DIGEST_SIZE (256 / 8) | ||
| #define SHA256_BLOCK_SIZE (512 / 8) | ||
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| #define SHFR(x, n) (x >> n) | ||
| #define ROTR(x, n) ((x >> n) | (x << ((sizeof(x) << 3) - n))) | ||
| #define CH(x, y, z) ((x & y) ^ (~x & z)) | ||
| #define MAJ(x, y, z) ((x & y) ^ (x & z) ^ (y & z)) | ||
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| #define SHA256_F1(x) (ROTR(x, 2) ^ ROTR(x, 13) ^ ROTR(x, 22)) | ||
| #define SHA256_F2(x) (ROTR(x, 6) ^ ROTR(x, 11) ^ ROTR(x, 25)) | ||
| #define SHA256_F3(x) (ROTR(x, 7) ^ ROTR(x, 18) ^ SHFR(x, 3)) | ||
| #define SHA256_F4(x) (ROTR(x, 17) ^ ROTR(x, 19) ^ SHFR(x, 10)) | ||
|
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| typedef struct { | ||
| unsigned int tot_len; | ||
| unsigned int len; | ||
| unsigned char block[2 * SHA256_BLOCK_SIZE]; | ||
| uint32_t h[8]; | ||
| } sha256_ctx; | ||
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| #define UNPACK32(x, str) \ | ||
| { \ | ||
| *((str) + 3) = (uint8_t)((x)); \ | ||
| *((str) + 2) = (uint8_t)((x) >> 8); \ | ||
| *((str) + 1) = (uint8_t)((x) >> 16); \ | ||
| *((str) + 0) = (uint8_t)((x) >> 24); \ | ||
| } | ||
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| #define PACK32(str, x) \ | ||
| { *(x) = ((uint32_t) * ((str) + 3)) | ((uint32_t) * ((str) + 2) << 8) | ((uint32_t) * ((str) + 1) << 16) | ((uint32_t) * ((str) + 0) << 24); } | ||
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| #define SHA256_SCR(i) \ | ||
| { w[i] = SHA256_F4(w[i - 2]) + w[i - 7] + SHA256_F3(w[i - 15]) + w[i - 16]; } | ||
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| static uint32_t sha256_h0[8] = {0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19}; | ||
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| static uint32_t sha256_k[64] = { | ||
| 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5, 0xd807aa98, 0x12835b01, 0x243185be, | ||
| 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174, 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, | ||
| 0x5cb0a9dc, 0x76f988da, 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967, 0x27b70a85, | ||
| 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, | ||
| 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070, 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, | ||
| 0x682e6ff3, 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2}; | ||
|
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| /* SHA-256 functions */ | ||
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| static void sha256_init(sha256_ctx *ctx); | ||
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| static void sha256_update(sha256_ctx *ctx, const unsigned char *message, unsigned int len); | ||
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| static void sha256_final(sha256_ctx *ctx, unsigned char *digest); | ||
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| static void sha256_transf(sha256_ctx *ctx, const unsigned char *message, unsigned int block_nb) { | ||
| uint32_t w[64]; | ||
| uint32_t wv[8]; | ||
| uint32_t t1, t2; | ||
| const unsigned char *sub_block; | ||
| int i; | ||
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| int j; | ||
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| for (i = 0; i < (int)block_nb; i++) { | ||
| sub_block = message + (i << 6); | ||
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| for (j = 0; j < 16; j++) { | ||
| PACK32(&sub_block[j << 2], &w[j]); | ||
| } | ||
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| for (j = 16; j < 64; j++) { | ||
| SHA256_SCR(j); | ||
| } | ||
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| for (j = 0; j < 8; j++) { | ||
| wv[j] = ctx->h[j]; | ||
| } | ||
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| for (j = 0; j < 64; j++) { | ||
| t1 = wv[7] + SHA256_F2(wv[4]) + CH(wv[4], wv[5], wv[6]) + sha256_k[j] + w[j]; | ||
| t2 = SHA256_F1(wv[0]) + MAJ(wv[0], wv[1], wv[2]); | ||
| wv[7] = wv[6]; | ||
| wv[6] = wv[5]; | ||
| wv[5] = wv[4]; | ||
| wv[4] = wv[3] + t1; | ||
| wv[3] = wv[2]; | ||
| wv[2] = wv[1]; | ||
| wv[1] = wv[0]; | ||
| wv[0] = t1 + t2; | ||
| } | ||
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| for (j = 0; j < 8; j++) { | ||
| ctx->h[j] += wv[j]; | ||
| } | ||
| } | ||
| } | ||
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| static void sha256_init(sha256_ctx *ctx) { | ||
| int i; | ||
| for (i = 0; i < 8; i++) { | ||
| ctx->h[i] = sha256_h0[i]; | ||
| } | ||
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| ctx->len = 0; | ||
| ctx->tot_len = 0; | ||
| } | ||
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| static void sha256_update(sha256_ctx *ctx, const unsigned char *message, unsigned int len) { | ||
| unsigned int block_nb; | ||
| unsigned int new_len, rem_len, tmp_len; | ||
| const unsigned char *shifted_message; | ||
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| tmp_len = SHA256_BLOCK_SIZE - ctx->len; | ||
| rem_len = len < tmp_len ? len : tmp_len; | ||
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| memcpy(&ctx->block[ctx->len], message, rem_len); | ||
|
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| if (ctx->len + len < SHA256_BLOCK_SIZE) { | ||
| ctx->len += len; | ||
| return; | ||
| } | ||
|
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| new_len = len - rem_len; | ||
| block_nb = new_len / SHA256_BLOCK_SIZE; | ||
|
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| shifted_message = message + rem_len; | ||
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| sha256_transf(ctx, ctx->block, 1); | ||
| sha256_transf(ctx, shifted_message, block_nb); | ||
|
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| rem_len = new_len % SHA256_BLOCK_SIZE; | ||
|
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| memcpy(ctx->block, &shifted_message[block_nb << 6], rem_len); | ||
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| ctx->len = rem_len; | ||
| ctx->tot_len += (block_nb + 1) << 6; | ||
| } | ||
|
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| static void sha256_final(sha256_ctx *ctx, unsigned char *digest) { | ||
| unsigned int block_nb; | ||
| unsigned int pm_len; | ||
| unsigned int len_b; | ||
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| int i; | ||
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| block_nb = (1 + ((SHA256_BLOCK_SIZE - 9) < (ctx->len % SHA256_BLOCK_SIZE))); | ||
|
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| len_b = (ctx->tot_len + ctx->len) << 3; | ||
| pm_len = block_nb << 6; | ||
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| memset(ctx->block + ctx->len, 0, pm_len - ctx->len); | ||
| ctx->block[ctx->len] = 0x80; | ||
| UNPACK32(len_b, ctx->block + pm_len - 4); | ||
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| sha256_transf(ctx, ctx->block, block_nb); | ||
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| for (i = 0; i < 8; i++) { | ||
| UNPACK32(ctx->h[i], &digest[i << 2]); | ||
| } | ||
| } | ||
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| void sha256(const unsigned char *message, unsigned int len, unsigned char *digest) { | ||
| sha256_ctx ctx = {0}; | ||
|
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| sha256_init(&ctx); | ||
| sha256_update(&ctx, message, len); | ||
| sha256_final(&ctx, digest); | ||
| } | ||
|
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| #ifdef MAIN | ||
| #include <stdio.h> | ||
|
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| int main(int argc, char **argv) { | ||
| char *str = "b08abd37"; | ||
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| uint8_t shasum[32] = {0}; | ||
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| sha256((const unsigned char *)str, strlen(str), (unsigned char *)shasum); | ||
| for (int i = 0; i < 32; i++) { | ||
| printf("%x ", shasum[i]); | ||
| } | ||
| printf("\n"); | ||
| return 0; | ||
| } | ||
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| #endif |
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