From: Eric Biggers <ebiggers@google.com>
Date: Wed, 10 May 2017 00:20:27 +0000 (-0700)
Subject: crypto: aes_ti - fix comment for MixColumns step
X-Git-Tag: v4.13~416^2~56
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=fa598d0a7026219461a1ad76e27117ce325fa0e4;p=mirror_ubuntu-artful-kernel.git

crypto: aes_ti - fix comment for MixColumns step

mix_columns() contains a comment which shows the matrix used by the
MixColumns step of AES, but the last entry in this matrix was incorrect

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/crypto/aes_ti.c b/crypto/aes_ti.c
index 92644fd1ac19..03023b2290e8 100644
--- a/crypto/aes_ti.c
+++ b/crypto/aes_ti.c
@@ -114,7 +114,7 @@ static u32 mix_columns(u32 x)
 	 * | 0x2 0x3 0x1 0x1 |   | x[0] |
 	 * | 0x1 0x2 0x3 0x1 |   | x[1] |
 	 * | 0x1 0x1 0x2 0x3 | x | x[2] |
-	 * | 0x3 0x1 0x1 0x3 |   | x[3] |
+	 * | 0x3 0x1 0x1 0x2 |   | x[3] |
 	 */
 	u32 y = mul_by_x(x) ^ ror32(x, 16);