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

[uclinux-h8/linux.git] / crypto / ccm.c

diff --git a/crypto/ccm.c b/crypto/ccm.c
index 499c917..3e05499 100644 (file)
--- a/crypto/ccm.c
+++ b/crypto/ccm.c
@@ -363,7 +363,7 @@ static void crypto_ccm_decrypt_done(struct crypto_async_request *areq,
 
        if (!err) {
                err = crypto_ccm_auth(req, req->dst, cryptlen);
-               if (!err && memcmp(pctx->auth_tag, pctx->odata, authsize))
+               if (!err && crypto_memneq(pctx->auth_tag, pctx->odata, authsize))
                        err = -EBADMSG;
        }
        aead_request_complete(req, err);
@@ -422,7 +422,7 @@ static int crypto_ccm_decrypt(struct aead_request *req)
                return err;
 
        /* verify */
-       if (memcmp(authtag, odata, authsize))
+       if (crypto_memneq(authtag, odata, authsize))
                return -EBADMSG;
 
        return err;