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[RFC,7/9] crypto: ghash - remove checks for key being set

Message ID 20180103191630.79917-8-ebiggers3@gmail.com (mailing list archive)
State Accepted
Delegated to: Herbert Xu
Headers show

Commit Message

Eric Biggers Jan. 3, 2018, 7:16 p.m. UTC 
From: Eric Biggers <ebiggers@google.com>

Now that the crypto API prevents a keyed hash from being used without
setting the key, there's no need for GHASH to do this check itself.

Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 crypto/ghash-generic.c | 6 ------
 1 file changed, 6 deletions(-)
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Patch

diff --git a/crypto/ghash-generic.c b/crypto/ghash-generic.c
index 12ad3e3a84e3..1bffb3f712dd 100644
--- a/crypto/ghash-generic.c
+++ b/crypto/ghash-generic.c
@@ -56,9 +56,6 @@  static int ghash_update(struct shash_desc *desc,
 	struct ghash_ctx *ctx = crypto_shash_ctx(desc->tfm);
 	u8 *dst = dctx->buffer;
 
-	if (!ctx->gf128)
-		return -ENOKEY;
-
 	if (dctx->bytes) {
 		int n = min(srclen, dctx->bytes);
 		u8 *pos = dst + (GHASH_BLOCK_SIZE - dctx->bytes);
@@ -111,9 +108,6 @@  static int ghash_final(struct shash_desc *desc, u8 *dst)
 	struct ghash_ctx *ctx = crypto_shash_ctx(desc->tfm);
 	u8 *buf = dctx->buffer;
 
-	if (!ctx->gf128)
-		return -ENOKEY;
-
 	ghash_flush(ctx, dctx);
 	memcpy(dst, buf, GHASH_BLOCK_SIZE);