This patch creates a new invisible Kconfig option CRYPTO_RNG_DEFAULT
that simply selects the DRBG. This new option is then selected
by the IV generators.
Signed-off-by: Herbert Xu <herb...@gondor.apana.org.au>
---
crypto/Kconfig | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
diff --git a/crypto/Kconfig b/crypto/Kconfig
index c3b6a5b..19ca651 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -78,6 +78,10 @@ config CRYPTO_RNG2
tristate
select CRYPTO_ALGAPI2
+config CRYPTO_RNG_DEFAULT
+ tristate
+ select CRYPTO_DRBG_MENU
+
config CRYPTO_PCOMP
tristate
select CRYPTO_PCOMP2
@@ -222,7 +226,7 @@ config CRYPTO_SEQIV
select CRYPTO_AEAD
select CRYPTO_BLKCIPHER
select CRYPTO_NULL
- select CRYPTO_RNG
+ select CRYPTO_RNG_DEFAULT
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
@@ -231,7 +235,7 @@ config CRYPTO_ECHAINIV
tristate "Encrypted Chain IV Generator"
select CRYPTO_AEAD
select CRYPTO_NULL
- select CRYPTO_RNG
+ select CRYPTO_RNG_DEFAULT
default m
help
This IV generator generates an IV based on the encryption of
@@ -1450,7 +1454,6 @@ comment "Random Number Generation"
config CRYPTO_ANSI_CPRNG
tristate "Pseudo Random Number Generation for Cryptographic modules"
- default m
select CRYPTO_AES
select CRYPTO_RNG
help
@@ -1468,11 +1471,9 @@ menuconfig CRYPTO_DRBG_MENU
if CRYPTO_DRBG_MENU
config CRYPTO_DRBG_HMAC
- bool "Enable HMAC DRBG"
+ bool
default y
select CRYPTO_HMAC
- help
- Enable the HMAC DRBG variant as defined in NIST SP800-90A.
config CRYPTO_DRBG_HASH
bool "Enable Hash DRBG"
@@ -1488,7 +1489,7 @@ config CRYPTO_DRBG_CTR
config CRYPTO_DRBG
tristate
- default CRYPTO_DRBG_MENU if (CRYPTO_DRBG_HMAC || CRYPTO_DRBG_HASH ||
CRYPTO_DRBG_CTR)
+ default CRYPTO_DRBG_MENU
select CRYPTO_RNG
select CRYPTO_JITTERENTROPY
--
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