diff options
| author | Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> | 2018-10-20 02:01:52 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-01-09 17:45:59 +0100 |
| commit | fbfb5490006aafe55ec3c812205586488692c8a9 (patch) | |
| tree | f9587816cb2cd6a7cec71f74a4de9f93f8334a80 /crypto | |
| parent | 8e8af8a2519d334c928f165394ed8614ebd6628b (diff) | |
crypto: cfb - fix decryption
commit fa4600734b74f74d9169c3015946d4722f8bcf79 upstream.
crypto_cfb_decrypt_segment() incorrectly XOR'ed generated keystream with
IV, rather than with data stream, resulting in incorrect decryption.
Test vectors will be added in the next patch.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/cfb.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/cfb.c b/crypto/cfb.c index 20987d0e09d8..e81e45673498 100644 --- a/crypto/cfb.c +++ b/crypto/cfb.c @@ -144,7 +144,7 @@ static int crypto_cfb_decrypt_segment(struct skcipher_walk *walk, do { crypto_cfb_encrypt_one(tfm, iv, dst); - crypto_xor(dst, iv, bsize); + crypto_xor(dst, src, bsize); iv = src; src += bsize; |