crypto: aes_ti - fix comment for MixColumns step
authorEric Biggers <ebiggers@google.com>
Wed, 10 May 2017 00:20:27 +0000 (17:20 -0700)
committerHerbert Xu <herbert@gondor.apana.org.au>
Mon, 19 Jun 2017 06:11:53 +0000 (14:11 +0800)
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>
crypto/aes_ti.c

index 92644fd1ac19c0fe5012e1c50c73a2e9f034327a..03023b2290e8ec6e790679a30ddf4763e0476923 100644 (file)
@@ -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);