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authorHerbert Xu <herbert@gondor.apana.org.au>2007-11-30 13:38:37 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2008-01-11 00:16:48 +0300
commit0a270321dbf948963aeb0e8382fe17d2c2eb3771 (patch)
treebdb6c12f88bd02b62853ff6bf26bf9d4a736fdbd /crypto/Kconfig
parent45d44eb56ad197cfccb8f84b5df64abff8b7cb96 (diff)
downloadlinux-0a270321dbf948963aeb0e8382fe17d2c2eb3771.tar.xz
[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/Kconfig')
-rw-r--r--crypto/Kconfig9
1 files changed, 9 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig
index c4b6c9125582..7ad9711eec98 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -32,6 +32,14 @@ config CRYPTO_BLKCIPHER
tristate
select CRYPTO_ALGAPI
+config CRYPTO_SEQIV
+ tristate "Sequence Number IV Generator"
+ select CRYPTO_BLKCIPHER
+ help
+ This IV 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.
+
config CRYPTO_HASH
tristate
select CRYPTO_ALGAPI
@@ -197,6 +205,7 @@ config CRYPTO_XTS
config CRYPTO_CTR
tristate "CTR support"
select CRYPTO_BLKCIPHER
+ select CRYPTO_SEQIV
select CRYPTO_MANAGER
help
CTR: Counter mode