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crypto: rng - Make DRBG the default RNG

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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 <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2015-06-03 14:49:31 +08:00
parent 3491244c62
commit 401e4238f3
1 changed files with 8 additions and 7 deletions
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15
crypto/Kconfig
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@ -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
@ -234,7 +238,7 @@ 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
@ -243,7 +247,7 @@ 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
@ -1484,7 +1488,6 @@ 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
@ -1502,11 +1505,9 @@ 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"
@ -1522,7 +1523,7 @@ 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