When originally drbg was introduced FIPS self-checks for all types but
CTR were using the most preferred parameters for each type of
DRBG. Update CTR self-check to use aes256.
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@xxxxxxxxxxxxx>
Reviewed-by: Stephan Mueller <smueller@xxxxxxxxxx>
---
crypto/drbg.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/crypto/drbg.c b/crypto/drbg.c
index 2cce18dcfc..b120e2866b 100644
--- a/crypto/drbg.c
+++ b/crypto/drbg.c
@@ -1478,8 +1478,8 @@ static int drbg_generate(struct drbg_state *drbg,
err = alg_test("drbg_pr_hmac_sha256",
"drbg_pr_hmac_sha256", 0, 0);
else if (drbg->core->flags & DRBG_CTR)
- err = alg_test("drbg_pr_ctr_aes128",
- "drbg_pr_ctr_aes128", 0, 0);
+ err = alg_test("drbg_pr_ctr_aes256",
+ "drbg_pr_ctr_aes256", 0, 0);
else
err = alg_test("drbg_pr_sha256",
"drbg_pr_sha256", 0, 0);
@@ -2017,7 +2017,7 @@ static inline int __init drbg_healthcheck_sanity(void)
return 0;
#ifdef CONFIG_CRYPTO_DRBG_CTR
- drbg_convert_tfm_core("drbg_nopr_ctr_aes128", &coreref, &pr);
+ drbg_convert_tfm_core("drbg_nopr_ctr_aes256", &coreref, &pr);
#endif
#ifdef CONFIG_CRYPTO_DRBG_HASH
drbg_convert_tfm_core("drbg_nopr_sha256", &coreref, &pr);
--
2.34.1
