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-rw-r--r--crypto/Kconfig9
1 files changed, 9 insertions, 0 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig
index c4b6c912558..7ad9711eec9 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