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| author | Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> | 2018-10-20 02:01:52 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-11-09 17:40:59 +0800 |
| commit | fa4600734b74f74d9169c3015946d4722f8bcf79 (patch) | |
| tree | 486ab1004b79e24d6800c8a87b6f7ab8aa46276f /crypto | |
| parent | 7172122be6a4712d699da4d261f92aa5ab3a78b8 (diff) | |
| download | linux-fa4600734b74f74d9169c3015946d4722f8bcf79.tar.gz linux-fa4600734b74f74d9169c3015946d4722f8bcf79.tar.bz2 linux-fa4600734b74f74d9169c3015946d4722f8bcf79.zip | |
crypto: cfb - fix decryption
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>
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 a0d68c09e1b9..fd4e8500e121 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; |