Commit d05fbdbe authored by Martin Hicks's avatar Martin Hicks Committed by Greg Kroah-Hartman

crypto: talitos - Extend max key length for SHA384/512-HMAC and AEAD

commit 03d2c511 upstream.

An updated patch that also handles the additional key length requirements
for the AEAD algorithms.

The max keysize is not 96.  For SHA384/512 it's 128, and for the AEAD
algorithms it's longer still.  Extend the max keysize for the
AEAD size for AES256 + HMAC(SHA512).

Fixes: 357fb605 ("crypto: talitos - add sha224, sha384 and sha512 to existing AEAD algorithms")
Signed-off-by: default avatarMartin Hicks <mort@bork.org>
Acked-by: default avatarHoria Geantă <horia.geanta@nxp.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 8f93a9aa
......@@ -804,7 +804,7 @@ static void talitos_unregister_rng(struct device *dev)
* crypto alg
*/
#define TALITOS_CRA_PRIORITY 3000
#define TALITOS_MAX_KEY_SIZE 96
#define TALITOS_MAX_KEY_SIZE (AES_MAX_KEY_SIZE + SHA512_BLOCK_SIZE)
#define TALITOS_MAX_IV_LENGTH 16 /* max of AES_BLOCK_SIZE, DES3_EDE_BLOCK_SIZE */
struct talitos_ctx {
......@@ -1388,6 +1388,11 @@ static int ablkcipher_setkey(struct crypto_ablkcipher *cipher,
{
struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher);
if (keylen > TALITOS_MAX_KEY_SIZE) {
crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
memcpy(&ctx->key, key, keylen);
ctx->keylen = keylen;
......
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