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crypto: drbg - avoid duplicate maintenance of key 

The TFM object maintains the key for the CTR DRBG.

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 2016-06-14 07:36:06 +02:00 committed by Herbert Xu
parent a07203fbfc
commit 103eb3f7bf
1 changed files with 1 additions and 2 deletions
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3
crypto/drbg.c
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@ -517,8 +517,7 @@ static int drbg_ctr_update(struct drbg_state *drbg, struct list_head *seed,
return ret; return ret;
/* 10.2.1.2 step 5 */ /* 10.2.1.2 step 5 */
memcpy(drbg->C, temp, drbg_keylen(drbg)); ret = crypto_skcipher_setkey(drbg->ctr_handle, temp,
ret = crypto_skcipher_setkey(drbg->ctr_handle, drbg->C,
drbg_keylen(drbg)); drbg_keylen(drbg));
if (ret) if (ret)
goto out; goto out;