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Make compatible with OpenSSL 1.1

This commit is contained in:
Marvin W 2017-03-13 20:44:37 +01:00
parent 0087a7135e
commit 1a4cd2508b
No known key found for this signature in database
GPG Key ID: 072E9235DB996F2A
1 changed files with 28 additions and 22 deletions
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50
plugins/signal-protocol/src/signal_helper.c
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@ -80,11 +80,15 @@ int signal_vala_random_generator(uint8_t *data, size_t len, void *user_data)
int signal_vala_hmac_sha256_init(void **hmac_context, const uint8_t *key, size_t key_len, void *user_data)
{
#if OPENSSL_VERSION_NUMBER >= 0x10100001L
HMAC_CTX *ctx = HMAC_CTX_new();
#else
HMAC_CTX *ctx = malloc(sizeof(HMAC_CTX));
if(!ctx) {
return SG_ERR_NOMEM;
}
HMAC_CTX_init(ctx);
#endif
*hmac_context = ctx;
if(HMAC_Init_ex(ctx, key, key_len, EVP_sha256(), 0) != 1) {
@ -129,8 +133,12 @@ void signal_vala_hmac_sha256_cleanup(void *hmac_context, void *user_data)
{
if(hmac_context) {
HMAC_CTX *ctx = hmac_context;
#if OPENSSL_VERSION_NUMBER >= 0x10100001L
HMAC_CTX_free(ctx);
#else
HMAC_CTX_cleanup(ctx);
free(ctx);
#endif
}
}
@ -281,8 +289,7 @@ int signal_vala_encrypt(signal_buffer **output,
return SG_ERR_UNKNOWN;
}
EVP_CIPHER_CTX ctx;
EVP_CIPHER_CTX_init(&ctx);
EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new();
int buf_extra = 0;
@ -290,28 +297,28 @@ int signal_vala_encrypt(signal_buffer **output,
// In GCM mode we use the last 16 bytes as auth tag
buf_extra += 16;
result = EVP_EncryptInit_ex(&ctx, evp_cipher, NULL, NULL, NULL);
result = EVP_EncryptInit_ex(ctx, evp_cipher, NULL, NULL, NULL);
if(!result) {
fprintf(stderr, "cannot initialize cipher\n");
result = SG_ERR_UNKNOWN;
goto complete;
}
result = EVP_CIPHER_CTX_ctrl(&ctx, EVP_CTRL_GCM_SET_IVLEN, 16, NULL);
result = EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, 16, NULL);
if(!result) {
fprintf(stderr, "cannot set iv size\n");
result = SG_ERR_UNKNOWN;
goto complete;
}
result = EVP_EncryptInit_ex(&ctx, NULL, NULL, key, iv);
result = EVP_EncryptInit_ex(ctx, NULL, NULL, key, iv);
if(!result) {
fprintf(stderr, "cannot set key/iv\n");
result = SG_ERR_UNKNOWN;
goto complete;
}
} else {
result = EVP_EncryptInit_ex(&ctx, evp_cipher, 0, key, iv);
result = EVP_EncryptInit_ex(ctx, evp_cipher, 0, key, iv);
if(!result) {
fprintf(stderr, "cannot initialize cipher\n");
result = SG_ERR_UNKNOWN;
@ -320,7 +327,7 @@ int signal_vala_encrypt(signal_buffer **output,
}
if(cipher == SG_CIPHER_AES_CTR_NOPADDING || cipher == SG_CIPHER_AES_GCM_NOPADDING) {
result = EVP_CIPHER_CTX_set_padding(&ctx, 0);
result = EVP_CIPHER_CTX_set_padding(ctx, 0);
if(!result) {
fprintf(stderr, "cannot set padding\n");
result = SG_ERR_UNKNOWN;
@ -336,7 +343,7 @@ int signal_vala_encrypt(signal_buffer **output,
}
int out_len = 0;
result = EVP_EncryptUpdate(&ctx,
result = EVP_EncryptUpdate(ctx,
out_buf, &out_len, plaintext, plaintext_len);
if(!result) {
fprintf(stderr, "cannot encrypt plaintext\n");
@ -345,7 +352,7 @@ int signal_vala_encrypt(signal_buffer **output,
}
int final_len = 0;
result = EVP_EncryptFinal_ex(&ctx, out_buf + out_len, &final_len);
result = EVP_EncryptFinal_ex(ctx, out_buf + out_len, &final_len);
if(!result) {
fprintf(stderr, "cannot finish encrypting plaintext\n");
result = SG_ERR_UNKNOWN;
@ -353,7 +360,7 @@ int signal_vala_encrypt(signal_buffer **output,
}
if(cipher == SG_CIPHER_AES_GCM_NOPADDING) {
result = EVP_CIPHER_CTX_ctrl(&ctx, EVP_CTRL_GCM_GET_TAG, 16, out_buf + (out_len + final_len));
result = EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_GET_TAG, 16, out_buf + (out_len + final_len));
if(!result) {
fprintf(stderr, "cannot get tag\n");
result = SG_ERR_UNKNOWN;
@ -364,7 +371,7 @@ int signal_vala_encrypt(signal_buffer **output,
*output = signal_buffer_create(out_buf, out_len + final_len + buf_extra);
complete:
EVP_CIPHER_CTX_cleanup(&ctx);
EVP_CIPHER_CTX_free(ctx);
if(out_buf) {
free(out_buf);
}
@ -397,35 +404,34 @@ int signal_vala_decrypt(signal_buffer **output,
return SG_ERR_UNKNOWN;
}
EVP_CIPHER_CTX ctx;
EVP_CIPHER_CTX_init(&ctx);
EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new();
if(cipher == SG_CIPHER_AES_GCM_NOPADDING) {
// In GCM mode we use the last 16 bytes as auth tag
ciphertext_len -= 16;
result = EVP_DecryptInit_ex(&ctx, evp_cipher, NULL, NULL, NULL);
result = EVP_DecryptInit_ex(ctx, evp_cipher, NULL, NULL, NULL);
if(!result) {
fprintf(stderr, "cannot initialize cipher\n");
result = SG_ERR_UNKNOWN;
goto complete;
}
result = EVP_CIPHER_CTX_ctrl(&ctx, EVP_CTRL_GCM_SET_IVLEN, 16, NULL);
result = EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_IVLEN, 16, NULL);
if(!result) {
fprintf(stderr, "cannot set iv size\n");
result = SG_ERR_UNKNOWN;
goto complete;
}
result = EVP_DecryptInit_ex(&ctx, NULL, NULL, key, iv);
result = EVP_DecryptInit_ex(ctx, NULL, NULL, key, iv);
if(!result) {
fprintf(stderr, "cannot set key/iv\n");
result = SG_ERR_UNKNOWN;
goto complete;
}
} else {
result = EVP_DecryptInit_ex(&ctx, evp_cipher, 0, key, iv);
result = EVP_DecryptInit_ex(ctx, evp_cipher, 0, key, iv);
if(!result) {
fprintf(stderr, "cannot initialize cipher\n");
result = SG_ERR_UNKNOWN;
@ -434,7 +440,7 @@ int signal_vala_decrypt(signal_buffer **output,
}
if(cipher == SG_CIPHER_AES_CTR_NOPADDING || cipher == SG_CIPHER_AES_GCM_NOPADDING) {
result = EVP_CIPHER_CTX_set_padding(&ctx, 0);
result = EVP_CIPHER_CTX_set_padding(ctx, 0);
if(!result) {
fprintf(stderr, "cannot set padding\n");
result = SG_ERR_UNKNOWN;
@ -450,7 +456,7 @@ int signal_vala_decrypt(signal_buffer **output,
}
int out_len = 0;
result = EVP_DecryptUpdate(&ctx,
result = EVP_DecryptUpdate(ctx,
out_buf, &out_len, ciphertext, ciphertext_len);
if(!result) {
fprintf(stderr, "cannot decrypt ciphertext\n");
@ -459,7 +465,7 @@ int signal_vala_decrypt(signal_buffer **output,
}
if(cipher == SG_CIPHER_AES_GCM_NOPADDING) {
result = EVP_CIPHER_CTX_ctrl(&ctx, EVP_CTRL_GCM_SET_TAG, 16, (uint8_t*)ciphertext + ciphertext_len);
result = EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_GCM_SET_TAG, 16, (uint8_t*)ciphertext + ciphertext_len);
if(!result) {
fprintf(stderr, "cannot set tag\n");
result = SG_ERR_UNKNOWN;
@ -468,7 +474,7 @@ int signal_vala_decrypt(signal_buffer **output,
}
int final_len = 0;
result = EVP_DecryptFinal_ex(&ctx, out_buf + out_len, &final_len);
result = EVP_DecryptFinal_ex(ctx, out_buf + out_len, &final_len);
if(!result) {
fprintf(stderr, "cannot finish decrypting ciphertexts\n");
result = SG_ERR_UNKNOWN;
@ -478,7 +484,7 @@ int signal_vala_decrypt(signal_buffer **output,
*output = signal_buffer_create(out_buf, out_len + final_len);
complete:
EVP_CIPHER_CTX_cleanup(&ctx);
EVP_CIPHER_CTX_free(ctx);
if(out_buf) {
free(out_buf);
}