From 0a270321dbf948963aeb0e8382fe17d2c2eb3771 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Fri, 30 Nov 2007 21:38:37 +1100 Subject: [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 --- crypto/ctr.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'crypto/ctr.c') 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; -- cgit v1.2.3-59-g8ed1b