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Output error log when repeat IV/salt detected

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This is useful when checking connection issues, and can be used to
check broken random number generator and replay attacks.

Signed-off-by: Syrone Wong <wong.syrone@gmail.com>
This commit is contained in:
Syrone Wong
2017-02-14 19:41:46 +08:00
committed by Max Lv
parent 504a3f7813
commit 80ca9469e6
2 changed files with 2 additions and 0 deletions
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src/aead.c
+1
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@@ -635,6 +635,7 @@ aead_decrypt(buffer_t *ciphertext, cipher_ctx_t *cipher_ctx, size_t capacity)
aead_cipher_ctx_set_key(cipher_ctx, 0);
if (cache_key_exist(nonce_cache, (char *)cipher_ctx->salt, salt_len)) {
LOGE("crypto: AEAD: repeat salt detected");
bfree(ciphertext);
return CRYPTO_ERROR;
} else {
src/stream.c
+1
View File
@@ -507,6 +507,7 @@ stream_decrypt(buffer_t *ciphertext, cipher_ctx_t *cipher_ctx, size_t capacity)
if (cipher->method >= RC4_MD5) {
if (cache_key_exist(nonce_cache, (char *)nonce, nonce_len)) {
LOGE("crypto: stream: repeat IV detected");
bfree(ciphertext);
return -1;
} else {