| Message ID | 20231030120517.39424-2-dimitri.ledkov@canonical.com (mailing list archive) |
|---|---|
| State | Accepted |
| Delegated to: | Herbert Xu |
| Headers | show |
| Series | drbg small fixes | expand |
diff --git a/crypto/drbg.c b/crypto/drbg.c index ff4ebbc68e..2cce18dcfc 100644 --- a/crypto/drbg.c +++ b/crypto/drbg.c @@ -2018,9 +2018,11 @@ static inline int __init drbg_healthcheck_sanity(void) #ifdef CONFIG_CRYPTO_DRBG_CTR drbg_convert_tfm_core("drbg_nopr_ctr_aes128", &coreref, &pr); -#elif defined CONFIG_CRYPTO_DRBG_HASH +#endif +#ifdef CONFIG_CRYPTO_DRBG_HASH drbg_convert_tfm_core("drbg_nopr_sha256", &coreref, &pr); -#else +#endif +#ifdef CONFIG_CRYPTO_DRBG_HMAC drbg_convert_tfm_core("drbg_nopr_hmac_sha256", &coreref, &pr); #endif
drbg supports multiple types of drbg, and multiple parameters of each. Health check sanity only checks one drbg of a single type. One can enable all three types of drbg. And instead of checking the most preferred algorithm (last one wins), it is currently checking first one instead. Update ifdef to ensure that healthcheck prefers HMAC, over HASH, over CTR, last one wins, like all other code and functions. This patch updates code from 541af946fe ("crypto: drbg - SP800-90A Deterministic Random Bit Generator"), but is not interesting to cherry-pick for stable updates, because it doesn't affect regular builds, nor has any tangible effect on FIPS certifcation. Signed-off-by: Dimitri John Ledkov <dimitri.ledkov@canonical.com> Reviewed-by: Stephan Mueller <smueller@chronox.de> --- crypto/drbg.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)