summaryrefslogtreecommitdiffstats
path: root/crypto/serpent_generic.c
diff options
context:
space:
mode:
Diffstat (limited to 'crypto/serpent_generic.c')
-rw-r--r--crypto/serpent_generic.c39
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);