From 103eb3f7bfb4fce0e299afbf50fef8ffa8d9d38c Mon Sep 17 00:00:00 2001 From: Stephan Mueller Date: Tue, 14 Jun 2016 07:36:06 +0200 Subject: [PATCH] crypto: drbg - avoid duplicate maintenance of key The TFM object maintains the key for the CTR DRBG. Signed-off-by: Stephan Mueller Signed-off-by: Herbert Xu --- crypto/drbg.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/crypto/drbg.c b/crypto/drbg.c index 8ceb71699dea..ded86385ab6e 100644 --- a/crypto/drbg.c +++ b/crypto/drbg.c @@ -517,8 +517,7 @@ static int drbg_ctr_update(struct drbg_state *drbg, struct list_head *seed, return ret; /* 10.2.1.2 step 5 */ - memcpy(drbg->C, temp, drbg_keylen(drbg)); - ret = crypto_skcipher_setkey(drbg->ctr_handle, drbg->C, + ret = crypto_skcipher_setkey(drbg->ctr_handle, temp, drbg_keylen(drbg)); if (ret) goto out;