[enh] replaced SodiumJNI with artisan bindings

stef · Feb 7, 2021 · 6d65f6a · 6d65f6a
1 parent cc7923b
commit 6d65f6a
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Showing 2 changed files with 113 additions and 1 deletion.
diff --git a/src/jni.c b/src/jni.c
@@ -1,5 +1,6 @@
 #include <jni.h>
 #include "sphinx.h"
+#include <sodium.h>
 
 JNIEXPORT void JNICALL Java_org_hsbp_androsphinx_Sphinx_challenge(JNIEnv *env, jobject ignore, jbyteArray pwd, jbyteArray salt, jbyteArray bfac, jbyteArray chal) {
 	jbyte* bufferPtrPwd = (*env)->GetByteArrayElements(env, pwd, NULL);
@@ -53,3 +54,114 @@ JNIEXPORT jbyteArray JNICALL Java_org_hsbp_androsphinx_Sphinx_finish(JNIEnv *env
 
 	return result ? NULL : rwd;
 }
+
+JNIEXPORT jbyteArray JNICALL Java_org_hsbp_androsphinx_Sodium_genericHash(JNIEnv *env, jobject ignore, jbyteArray msg, jbyteArray salt) {
+	jbyte* bufferPtrMsg  = (*env)->GetByteArrayElements(env, msg,  NULL);
+	jbyte* bufferPtrSalt = (*env)->GetByteArrayElements(env, salt, NULL);
+	jsize msgLen = (*env)->GetArrayLength(env, msg);
+	jsize saltLen = (*env)->GetArrayLength(env, salt);
+
+	jbyteArray hash = (*env)->NewByteArray(env, crypto_generichash_BYTES);
+	jbyte* bufferPtrHash = (*env)->GetByteArrayElements(env, hash, NULL);
+
+	crypto_generichash(bufferPtrHash, crypto_generichash_BYTES,
+			bufferPtrMsg, msgLen, bufferPtrSalt, saltLen);
+
+	(*env)->ReleaseByteArrayElements(env, msg,  bufferPtrMsg, JNI_ABORT);
+	(*env)->ReleaseByteArrayElements(env, salt, bufferPtrSalt, JNI_ABORT);
+	(*env)->ReleaseByteArrayElements(env, hash, bufferPtrHash, 0);
+
+	return hash;
+}
+
+JNIEXPORT jbyteArray JNICALL Java_org_hsbp_androsphinx_Sodium_randomBytes(JNIEnv *env, jobject ignore, jint length) {
+	jbyteArray result = (*env)->NewByteArray(env, length);
+	jbyte* bufferPtrResult = (*env)->GetByteArrayElements(env, result, NULL);
+
+	randombytes_buf(bufferPtrResult, length);
+
+	(*env)->ReleaseByteArrayElements(env, result, bufferPtrResult, 0);
+
+	return result;
+}
+
+JNIEXPORT jbyteArray JNICALL Java_org_hsbp_androsphinx_Sodium_cryptoSignSeedKeypair(JNIEnv *env, jobject ignore, jbyteArray seed) {
+	unsigned char ignored_pk[crypto_sign_PUBLICKEYBYTES];
+
+	jbyteArray result = (*env)->NewByteArray(env, crypto_sign_SECRETKEYBYTES);
+	jbyte* bufferPtrResult = (*env)->GetByteArrayElements(env, result, NULL);
+	jbyte* bufferPtrSeed = (*env)->GetByteArrayElements(env, seed, NULL);
+
+	crypto_sign_seed_keypair(ignored_pk, bufferPtrResult, bufferPtrSeed);
+
+	(*env)->ReleaseByteArrayElements(env, result, bufferPtrResult, 0);
+	(*env)->ReleaseByteArrayElements(env, seed, bufferPtrSeed, JNI_ABORT);
+
+	return result;
+}
+
+JNIEXPORT jbyteArray JNICALL Java_org_hsbp_androsphinx_Sodium_cryptoSignEd25519SkToPk(JNIEnv *env, jobject ignore, jbyteArray sk) {
+	jbyteArray result = (*env)->NewByteArray(env, crypto_sign_PUBLICKEYBYTES);
+	jbyte* bufferPtrResult = (*env)->GetByteArrayElements(env, result, NULL);
+	jbyte* bufferPtrSk = (*env)->GetByteArrayElements(env, sk, NULL);
+
+	crypto_sign_ed25519_sk_to_pk(bufferPtrResult, bufferPtrSk);
+
+	(*env)->ReleaseByteArrayElements(env, result, bufferPtrResult, 0);
+	(*env)->ReleaseByteArrayElements(env, sk, bufferPtrSk, JNI_ABORT);
+
+	return result;
+}
+
+JNIEXPORT jbyteArray JNICALL Java_org_hsbp_androsphinx_Sodium_cryptoSignDetached(JNIEnv *env, jobject ignore, jbyteArray sk, jbyteArray msg) {
+	jbyteArray result = (*env)->NewByteArray(env, crypto_sign_BYTES);
+	jbyte* bufferPtrResult = (*env)->GetByteArrayElements(env, result, NULL);
+	jbyte* bufferPtrSk = (*env)->GetByteArrayElements(env, sk, NULL);
+	jbyte* bufferPtrMsg = (*env)->GetByteArrayElements(env, msg, NULL);
+	jsize msgLen = (*env)->GetArrayLength(env, msg);
+
+	unsigned long long ignored_siglen = crypto_sign_BYTES;
+
+	crypto_sign_detached(bufferPtrResult, &ignored_siglen, bufferPtrMsg, msgLen, bufferPtrSk);
+
+	(*env)->ReleaseByteArrayElements(env, result, bufferPtrResult, 0);
+	(*env)->ReleaseByteArrayElements(env, sk, bufferPtrSk, JNI_ABORT);
+	(*env)->ReleaseByteArrayElements(env, msg, bufferPtrMsg, JNI_ABORT);
+
+	return result;
+}
+
+JNIEXPORT jbyteArray JNICALL Java_org_hsbp_androsphinx_Sodium_cryptoSecretboxEasy(JNIEnv *env, jobject ignore, jbyteArray key, jbyteArray msg) {
+	jbyte* bufferPtrKey = (*env)->GetByteArrayElements(env, key, NULL);
+	jbyte* bufferPtrMsg = (*env)->GetByteArrayElements(env, msg, NULL);
+	jsize msgLen = (*env)->GetArrayLength(env, msg);
+
+	jbyteArray result = (*env)->NewByteArray(env, crypto_secretbox_NONCEBYTES + crypto_secretbox_MACBYTES + msgLen);
+	jbyte* bufferPtrResult = (*env)->GetByteArrayElements(env, result, NULL);
+
+	randombytes_buf(bufferPtrResult, crypto_secretbox_NONCEBYTES);
+	crypto_secretbox_easy(bufferPtrResult + crypto_secretbox_NONCEBYTES, bufferPtrMsg, msgLen, bufferPtrResult, bufferPtrKey);
+
+	(*env)->ReleaseByteArrayElements(env, result, bufferPtrResult, 0);
+	(*env)->ReleaseByteArrayElements(env, msg, bufferPtrMsg, JNI_ABORT);
+	(*env)->ReleaseByteArrayElements(env, key, bufferPtrKey, JNI_ABORT);
+
+	return result;
+}
+
+JNIEXPORT jbyteArray JNICALL Java_org_hsbp_androsphinx_Sodium_cryptoSecretboxOpenEasy(JNIEnv *env, jobject ignore, jbyteArray key, jbyteArray msg) {
+	jbyte* bufferPtrKey = (*env)->GetByteArrayElements(env, key, NULL);
+	jbyte* bufferPtrMsg = (*env)->GetByteArrayElements(env, msg, NULL);
+	jsize msgLen = (*env)->GetArrayLength(env, msg);
+
+	jbyteArray result = (*env)->NewByteArray(env, msgLen - (crypto_secretbox_NONCEBYTES + crypto_secretbox_MACBYTES));
+	jbyte* bufferPtrResult = (*env)->GetByteArrayElements(env, result, NULL);
+
+	int sodium_result = crypto_secretbox_open_easy(bufferPtrResult, bufferPtrMsg + crypto_secretbox_NONCEBYTES, msgLen - crypto_secretbox_NONCEBYTES, bufferPtrMsg, bufferPtrKey);
+
+	(*env)->ReleaseByteArrayElements(env, result, bufferPtrResult, sodium_result ? JNI_ABORT : 0);
+	(*env)->ReleaseByteArrayElements(env, msg, bufferPtrMsg, JNI_ABORT);
+	(*env)->ReleaseByteArrayElements(env, key, bufferPtrKey, JNI_ABORT);
+
+	return sodium_result ? NULL : result;
+}
diff --git a/src/makefile b/src/makefile
@@ -20,7 +20,7 @@ win: win/libsodium-win64 exe libsphinx.$(SOEXT) tests$(EXT)
 exe: bin/challenge$(EXT) bin/respond$(EXT) bin/derive$(EXT)
 
 android: INC=-I$(SODIUM) -I$(SODIUM)/sodium
-android: LIBS=-Wl,-Bstatic -Wl,-Bdynamic -lsodiumjni -L.
+android: LIBS=-Wl,-Bstatic -Wl,-Bdynamic -lsodium -L.
 android: EXTRA_OBJECTS=jni.o
 android: jni.o libsphinx.so