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| author | Paul Fariello <paul@fariello.eu> | 2019-03-06 21:27:25 +0220 |
|---|---|---|
| committer | Paul Fariello <paul@fariello.eu> | 2019-04-10 16:31:45 +0200 |
| commit | da0376a6a9b83756efffed6fb24fafd72f0fc36e (patch) | |
| tree | 0d9dc515158b9b5798ec357a489b89bcabfe24c9 /src/omemo/crypto.c | |
| parent | b0c52f84ab419918d4dd0ab1fd3f9755b3687c93 (diff) | |
| download | profani-tty-da0376a6a9b83756efffed6fb24fafd72f0fc36e.tar.gz | |
Check received gcm tag
Diffstat (limited to 'src/omemo/crypto.c')
| -rw-r--r-- | src/omemo/crypto.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/src/omemo/crypto.c b/src/omemo/crypto.c index d959020b..9d64a701 100644 --- a/src/omemo/crypto.c +++ b/src/omemo/crypto.c @@ -295,7 +295,7 @@ out: } int -aes128gcm_decrypt(unsigned char *plaintext, size_t *plaintext_len, const unsigned char *const ciphertext, size_t ciphertext_len, const unsigned char *const iv, const unsigned char *const key) +aes128gcm_decrypt(unsigned char *plaintext, size_t *plaintext_len, const unsigned char *const ciphertext, size_t ciphertext_len, const unsigned char *const iv, const unsigned char *const key, const unsigned char *const tag) { gcry_error_t res; gcry_cipher_hd_t hd; @@ -319,10 +319,11 @@ aes128gcm_decrypt(unsigned char *plaintext, size_t *plaintext_len, const unsigne if (res != GPG_ERR_NO_ERROR) { goto out; } - //res = gcry_cipher_checktag(hd, ciphertext + ciphertext_len - AES128_GCM_TAG_LENGTH, AES128_GCM_TAG_LENGTH); - //if (res != GPG_ERR_NO_ERROR) { - // goto out; - //} + + res = gcry_cipher_checktag(hd, tag, AES128_GCM_TAG_LENGTH); + if (res != GPG_ERR_NO_ERROR) { + goto out; + } out: gcry_cipher_close(hd); |