crypto: crypto_memneq - add equality testing of memory regions w/o timing leaks

[karo-tx-linux.git] / crypto / authencesn.c

diff --git a/crypto/authencesn.c b/crypto/authencesn.c
index ab53762fc309c5db55ccaab948f1862bcc7a237a..c569d58de661034b113aead1c0457a04b31f2455 100644 (file)
--- a/crypto/authencesn.c
+++ b/crypto/authencesn.c
@@ -247,7 +247,7 @@ static void authenc_esn_verify_ahash_update_done(struct crypto_async_request *ar
        scatterwalk_map_and_copy(ihash, areq_ctx->sg, areq_ctx->cryptlen,
                                 authsize, 0);
 
-       err = memcmp(ihash, ahreq->result, authsize) ? -EBADMSG : 0;
+       err = crypto_memneq(ihash, ahreq->result, authsize) ? -EBADMSG : 0;
        if (err)
                goto out;
 
@@ -296,7 +296,7 @@ static void authenc_esn_verify_ahash_update_done2(struct crypto_async_request *a
        scatterwalk_map_and_copy(ihash, areq_ctx->sg, areq_ctx->cryptlen,
                                 authsize, 0);
 
-       err = memcmp(ihash, ahreq->result, authsize) ? -EBADMSG : 0;
+       err = crypto_memneq(ihash, ahreq->result, authsize) ? -EBADMSG : 0;
        if (err)
                goto out;
 
@@ -336,7 +336,7 @@ static void authenc_esn_verify_ahash_done(struct crypto_async_request *areq,
        scatterwalk_map_and_copy(ihash, areq_ctx->sg, areq_ctx->cryptlen,
                                 authsize, 0);
 
-       err = memcmp(ihash, ahreq->result, authsize) ? -EBADMSG : 0;
+       err = crypto_memneq(ihash, ahreq->result, authsize) ? -EBADMSG : 0;
        if (err)
                goto out;
 
@@ -568,7 +568,7 @@ static int crypto_authenc_esn_verify(struct aead_request *req)
        ihash = ohash + authsize;
        scatterwalk_map_and_copy(ihash, areq_ctx->sg, areq_ctx->cryptlen,
                                 authsize, 0);
-       return memcmp(ihash, ohash, authsize) ? -EBADMSG : 0;
+       return crypto_memneq(ihash, ohash, authsize) ? -EBADMSG : 0;
 }
 
 static int crypto_authenc_esn_iverify(struct aead_request *req, u8 *iv,