openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

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>
This commit is contained in:
Stephan Mueller 2014-07-06 02:26:37 +02:00 committed by Herbert Xu
parent 27e4de2bd1
commit 5b635e280e
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
crypto/drbg.c
View File

@ -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,