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crypto: drbg - Use Kconfig to ensure at least one RNG option is set

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This patch removes the build-time test that ensures at least one RNG
is set.  Instead we will simply not build drbg if no options are set
through Kconfig.

This also fixes a typo in the name of the Kconfig option CRYTPO_DRBG
(should be CRYPTO_DRBG).

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu
2014-07-04 22:15:08 +08:00
parent 8c98716601
commit f2c89a10de
3 changed files with 10 additions and 16 deletions
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crypto/Kconfig
+9 -9
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@@ -23,7 +23,7 @@ comment "Crypto core or helper"
config CRYPTO_FIPS
bool "FIPS 200 compliance"
depends on (CRYPTO_ANSI_CPRNG || CRYTPO_DRBG) && !CRYPTO_MANAGER_DISABLE_TESTS
depends on (CRYPTO_ANSI_CPRNG || CRYPTO_DRBG) && !CRYPTO_MANAGER_DISABLE_TESTS
depends on MODULE_SIG
help
This options enables the fips boot option which is
@@ -1394,39 +1394,39 @@ config CRYPTO_ANSI_CPRNG
ANSI X9.31 A.2.4. Note that this option must be enabled if
CRYPTO_FIPS is selected
menuconfig CRYTPO_DRBG
menuconfig CRYPTO_DRBG_MENU
tristate "NIST SP800-90A DRBG"
depends on CRYPTO
select CRYPTO_RNG
help
NIST SP800-90A compliant DRBG. In the following submenu, one or
more of the DRBG types must be selected.
if CRYTPO_DRBG
if CRYPTO_DRBG_MENU
config CRYPTO_DRBG_HMAC
bool "Enable HMAC DRBG"
default y
depends on CRYTPO_DRBG
select CRYPTO_HMAC
help
Enable the HMAC DRBG variant as defined in NIST SP800-90A.
config CRYPTO_DRBG_HASH
bool "Enable Hash DRBG"
depends on CRYTPO_DRBG
select CRYPTO_HASH
help
Enable the Hash DRBG variant as defined in NIST SP800-90A.
config CRYPTO_DRBG_CTR
bool "Enable CTR DRBG"
depends on CRYTPO_DRBG
select CRYPTO_AES
help
Enable the CTR DRBG variant as defined in NIST SP800-90A.
endif #CRYTPO_DRBG
config CRYPTO_DRBG
tristate
default CRYPTO_DRBG_MENU if (CRYPTO_DRBG_HMAC || CRYPTO_DRBG_HASH || CRYPTO_DRBG_CTR)
select CRYPTO_RNG
endif # if CRYPTO_DRBG_MENU
config CRYPTO_USER_API
tristate