diff options
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/serpent_generic.c | 39 |
1 files changed, 25 insertions, 14 deletions
diff --git a/crypto/serpent_generic.c b/crypto/serpent_generic.c index 236c87547a17..45f98b750053 100644 --- a/crypto/serpent_generic.c +++ b/crypto/serpent_generic.c @@ -272,6 +272,7 @@ int __serpent_setkey(struct serpent_ctx *ctx, const u8 *key, u32 *k = ctx->expkey; u8 *k8 = (u8 *)k; u32 r0, r1, r2, r3, r4; + __le32 *lk; int i; /* Copy key, add padding */ @@ -283,22 +284,32 @@ int __serpent_setkey(struct serpent_ctx *ctx, const u8 *key, while (i < SERPENT_MAX_KEY_SIZE) k8[i++] = 0; + lk = (__le32 *)k; + k[0] = le32_to_cpu(lk[0]); + k[1] = le32_to_cpu(lk[1]); + k[2] = le32_to_cpu(lk[2]); + k[3] = le32_to_cpu(lk[3]); + k[4] = le32_to_cpu(lk[4]); + k[5] = le32_to_cpu(lk[5]); + k[6] = le32_to_cpu(lk[6]); + k[7] = le32_to_cpu(lk[7]); + /* Expand key using polynomial */ - r0 = le32_to_cpu(k[3]); - r1 = le32_to_cpu(k[4]); - r2 = le32_to_cpu(k[5]); - r3 = le32_to_cpu(k[6]); - r4 = le32_to_cpu(k[7]); - - keyiter(le32_to_cpu(k[0]), r0, r4, r2, 0, 0); - keyiter(le32_to_cpu(k[1]), r1, r0, r3, 1, 1); - keyiter(le32_to_cpu(k[2]), r2, r1, r4, 2, 2); - keyiter(le32_to_cpu(k[3]), r3, r2, r0, 3, 3); - keyiter(le32_to_cpu(k[4]), r4, r3, r1, 4, 4); - keyiter(le32_to_cpu(k[5]), r0, r4, r2, 5, 5); - keyiter(le32_to_cpu(k[6]), r1, r0, r3, 6, 6); - keyiter(le32_to_cpu(k[7]), r2, r1, r4, 7, 7); + r0 = k[3]; + r1 = k[4]; + r2 = k[5]; + r3 = k[6]; + r4 = k[7]; + + keyiter(k[0], r0, r4, r2, 0, 0); + keyiter(k[1], r1, r0, r3, 1, 1); + keyiter(k[2], r2, r1, r4, 2, 2); + keyiter(k[3], r3, r2, r0, 3, 3); + keyiter(k[4], r4, r3, r1, 4, 4); + keyiter(k[5], r0, r4, r2, 5, 5); + keyiter(k[6], r1, r0, r3, 6, 6); + keyiter(k[7], r2, r1, r4, 7, 7); keyiter(k[0], r3, r2, r0, 8, 8); keyiter(k[1], r4, r3, r1, 9, 9); |