Thread (3 messages) 3 messages, 2 authors, 2016-01-26

Re: AF_ALG: hash returns -ENOKEY

From: Herbert Xu <herbert@gondor.apana.org.au>
Date: 2016-01-26 16:16:41
Subsystem: crypto api, the rest · Maintainers: Herbert Xu, "David S. Miller", Linus Torvalds

On Mon, Jan 25, 2016 at 10:22:36PM +0100, Stephan Mueller wrote:
Hi Herbert,

during testing of the current cryptodev-2.6 key, the AF_ALG hash does not seem 
to work as it used to.
Oops, looks like I screwed up shash.

---8<---
Subject: crypto: shash - Fix has_key setting

The has_key logic is wrong for shash algorithms as they always
have a setkey function.  So we should instead be testing against
shash_no_setkey.

Fixes: a5596d633278 ("crypto: hash - Add crypto_ahash_has_setkey")
Cc: stable@vger.kernel.org
Reported-by: Stephan Mueller <redacted>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/crypto/shash.c b/crypto/shash.c
index 88a27de..3597545 100644
--- a/crypto/shash.c
+++ b/crypto/shash.c
@@ -354,11 +354,10 @@ int crypto_init_shash_ops_async(struct crypto_tfm *tfm)
 	crt->final = shash_async_final;
 	crt->finup = shash_async_finup;
 	crt->digest = shash_async_digest;
+	crt->setkey = shash_async_setkey;
+
+	crt->has_setkey = alg->setkey != shash_no_setkey;
 
-	if (alg->setkey) {
-		crt->setkey = shash_async_setkey;
-		crt->has_setkey = true;
-	}
 	if (alg->export)
 		crt->export = shash_async_export;
 	if (alg->import)
-- 
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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