From: Stephan Mueller Date: Sun, 6 Jul 2014 00:26:37 +0000 (+0200) Subject: crypto: drbg - HMAC-SHA1 DRBG has crypto strength of 128 bits X-Git-Tag: v3.17-rc1~151^2~35 X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=5b635e280efce5b735042c7ffa2487c4ba8fb4bf;p=~emulex%2Finfiniband.git 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 Signed-off-by: Herbert Xu --- diff --git a/crypto/drbg.c b/crypto/drbg.c index a76b3cb03cf..84478cb8d02 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,