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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2007-11-30 21:38:37 +1100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2008-01-11 08:16:48 +1100 |
| commit | 0a270321dbf948963aeb0e8382fe17d2c2eb3771 (patch) | |
| tree | bdb6c12f88bd02b62853ff6bf26bf9d4a736fdbd /crypto/ctr.c | |
| parent | 45d44eb56ad197cfccb8f84b5df64abff8b7cb96 (diff) | |
| download | linux-0a270321dbf948963aeb0e8382fe17d2c2eb3771.tar.gz linux-0a270321dbf948963aeb0e8382fe17d2c2eb3771.tar.bz2 linux-0a270321dbf948963aeb0e8382fe17d2c2eb3771.zip | |
[CRYPTO] seqiv: Add Sequence Number IV Generator
This generator generates an IV based on a sequence number by xoring it
with a salt. This algorithm is mainly useful for CTR and similar modes.
This patch also sets it as the default IV generator for ctr.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/ctr.c')
| -rw-r--r-- | crypto/ctr.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/crypto/ctr.c b/crypto/ctr.c index 1052b318aed2..2d7425f0e7b8 100644 --- a/crypto/ctr.c +++ b/crypto/ctr.c @@ -361,6 +361,8 @@ static struct crypto_instance *crypto_rfc3686_alloc(struct rtattr **tb) inst->alg.cra_blkcipher.max_keysize = alg->cra_blkcipher.max_keysize + CTR_RFC3686_NONCE_SIZE; + inst->alg.cra_blkcipher.geniv = "seqiv"; + inst->alg.cra_ctxsize = sizeof(struct crypto_rfc3686_ctx); inst->alg.cra_init = crypto_rfc3686_init_tfm; |