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authorStephan Mueller <smueller@chronox.de>2014-07-06 02:26:37 +0200
committerHerbert Xu <herbert@gondor.apana.org.au>2014-07-08 21:18:25 +0800
commit5b635e280efce5b735042c7ffa2487c4ba8fb4bf (patch)
tree5ffa7a25792074c99f5f2b2b011a283045ab5594 /crypto
parent27e4de2bd1804c24e3e517dd54026c1f60e8fe27 (diff)
downloadlinux-stericsson-5b635e280efce5b735042c7ffa2487c4ba8fb4bf.tar.gz
crypto: drbg - HMAC-SHA1 DRBG has crypto strength of 128 bits
The patch corrects the security strength of the HMAC-SHA1 DRBG to 128 bits. This strength defines the size of the seed required for the DRBG. Thus, the patch lowers the seeding requirement from 256 bits to 128 bits for HMAC-SHA1. Signed-off-by: Stephan Mueller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/drbg.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/drbg.c b/crypto/drbg.c
index a76b3cb03cf4..84478cb8d02a 100644
--- a/crypto/drbg.c
+++ b/crypto/drbg.c
@@ -184,7 +184,7 @@ static const struct drbg_core drbg_cores[] = {
#endif /* CONFIG_CRYPTO_DRBG_HASH */
#ifdef CONFIG_CRYPTO_DRBG_HMAC
{
- .flags = DRBG_HMAC | DRBG_STRENGTH256,
+ .flags = DRBG_HMAC | DRBG_STRENGTH128,
.statelen = 20, /* block length of cipher */
.max_addtllen = 35,
.max_bits = 19,