[PATCH] crypto: talitos: Extend max key length for SHA384/512-HMAC

[Martin Hicks]

The max keysize for both of these is 128, not 96.  Before, with keysizes
over 96, the memcpy in ahash_setkey() would overwrite memory beyond the
key field.

Signed-off-by: Martin Hicks <mort at bork.org>
---
 drivers/crypto/talitos.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 0bba6a1..97dc85e 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -816,7 +816,7 @@ static void talitos_unregister_rng(struct device *dev)
  * HMAC_SNOOP_NO_AFEA (HSNA) instead of type IPSEC_ESP
  */
 #define TALITOS_CRA_PRIORITY_AEAD_HSNA	(TALITOS_CRA_PRIORITY - 1)
-#define TALITOS_MAX_KEY_SIZE		96
+#define TALITOS_MAX_KEY_SIZE		SHA512_BLOCK_SIZE /* SHA512 has the largest keysize input */
 #define TALITOS_MAX_IV_LENGTH		16 /* max of AES_BLOCK_SIZE, DES3_EDE_BLOCK_SIZE */
 
 struct talitos_ctx {
-- 
1.7.10.4


-- 
Martin Hicks P.Eng.    |      mort at bork.org
Bork Consulting Inc.   |  +1 (613) 266-2296