diff options
Diffstat (limited to 'crypto/anubis.c')
| -rw-r--r-- | crypto/anubis.c | 38 |
1 files changed, 13 insertions, 25 deletions
diff --git a/crypto/anubis.c b/crypto/anubis.c index 3925eb0..94c4b1f 100644 --- a/crypto/anubis.c +++ b/crypto/anubis.c @@ -32,8 +32,10 @@ #include <linux/init.h> #include <linux/module.h> #include <linux/mm.h> +#include <asm/byteorder.h> #include <asm/scatterlist.h> #include <linux/crypto.h> +#include <linux/types.h> #define ANUBIS_MIN_KEY_SIZE 16 #define ANUBIS_MAX_KEY_SIZE 40 @@ -461,8 +463,8 @@ static const u32 rc[] = { static int anubis_setkey(void *ctx_arg, const u8 *in_key, unsigned int key_len, u32 *flags) { - - int N, R, i, pos, r; + const __be32 *key = (const __be32 *)in_key; + int N, R, i, r; u32 kappa[ANUBIS_MAX_N]; u32 inter[ANUBIS_MAX_N]; @@ -483,13 +485,8 @@ static int anubis_setkey(void *ctx_arg, const u8 *in_key, ctx->R = R = 8 + N; /* * map cipher key to initial key state (mu): */ - for (i = 0, pos = 0; i < N; i++, pos += 4) { - kappa[i] = - (in_key[pos ] << 24) ^ - (in_key[pos + 1] << 16) ^ - (in_key[pos + 2] << 8) ^ - (in_key[pos + 3] ); - } + for (i = 0; i < N; i++) + kappa[i] = be32_to_cpu(key[i]); /* * generate R + 1 round keys: @@ -578,7 +575,9 @@ static int anubis_setkey(void *ctx_arg, const u8 *in_key, static void anubis_crypt(u32 roundKey[ANUBIS_MAX_ROUNDS + 1][4], u8 *ciphertext, const u8 *plaintext, const int R) { - int i, pos, r; + const __be32 *src = (const __be32 *)plaintext; + __be32 *dst = (__be32 *)ciphertext; + int i, r; u32 state[4]; u32 inter[4]; @@ -586,14 +585,8 @@ static void anubis_crypt(u32 roundKey[ANUBIS_MAX_ROUNDS + 1][4], * map plaintext block to cipher state (mu) * and add initial round key (sigma[K^0]): */ - for (i = 0, pos = 0; i < 4; i++, pos += 4) { - state[i] = - (plaintext[pos ] << 24) ^ - (plaintext[pos + 1] << 16) ^ - (plaintext[pos + 2] << 8) ^ - (plaintext[pos + 3] ) ^ - roundKey[0][i]; - } + for (i = 0; i < 4; i++) + state[i] = be32_to_cpu(src[i]) ^ roundKey[0][i]; /* * R - 1 full rounds: @@ -663,13 +656,8 @@ static void anubis_crypt(u32 roundKey[ANUBIS_MAX_ROUNDS + 1][4], * map cipher state to ciphertext block (mu^{-1}): */ - for (i = 0, pos = 0; i < 4; i++, pos += 4) { - u32 w = inter[i]; - ciphertext[pos ] = (u8)(w >> 24); - ciphertext[pos + 1] = (u8)(w >> 16); - ciphertext[pos + 2] = (u8)(w >> 8); - ciphertext[pos + 3] = (u8)(w ); - } + for (i = 0; i < 4; i++) + dst[i] = cpu_to_be32(inter[i]); } static void anubis_encrypt(void *ctx_arg, u8 *dst, const u8 *src) |
