linux-kernel - [PATCH v1 03/15] crypto: talitos

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Message-Id: <310b67004e02da826322e7cc96b85f46c9ef35b2.1558445259.git.christophe.leroy@c-s.fr>
Date:   Tue, 21 May 2019 13:34:09 +0000 (UTC)
From:   Christophe Leroy <christophe.leroy@....fr>
To:     Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>, horia.geanta@....com
Cc:     linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH v1 03/15] crypto: talitos - reduce max key size for SEC1

SEC1 doesn't support SHA384/512, so it doesn't require
longer keys.

This patch reduces the max key size when the driver
is built for SEC1 only.

Signed-off-by: Christophe Leroy <christophe.leroy@....fr>
Fixes: 03d2c5114c95 ("crypto: talitos - Extend max key length for SHA384/512-HMAC and AEAD")
---
 drivers/crypto/talitos.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 6f8bc6467706..6312f8d501b1 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -837,7 +837,11 @@ 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)
+#ifdef CONFIG_CRYPTO_DEV_TALITOS_SEC2
 #define TALITOS_MAX_KEY_SIZE		(AES_MAX_KEY_SIZE + SHA512_BLOCK_SIZE)
+#else
+#define TALITOS_MAX_KEY_SIZE		(AES_MAX_KEY_SIZE + SHA256_BLOCK_SIZE)
+#endif
 #define TALITOS_MAX_IV_LENGTH		16 /* max of AES_BLOCK_SIZE, DES3_EDE_BLOCK_SIZE */
 
 struct talitos_ctx {
-- 
2.13.3