* Abstract Algebra_ by Joseph A. Gallian, especially chapter 22 in the
* Third Edition.
*/
+
+#include <asm/byteorder.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/types.h>
* whitening subkey number m. */
#define INPACK(n, x, m) \
- x = in[4 * (n)] ^ (in[4 * (n) + 1] << 8) \
- ^ (in[4 * (n) + 2] << 16) ^ (in[4 * (n) + 3] << 24) ^ ctx->w[m]
+ x = le32_to_cpu(src[n]) ^ ctx->w[m]
#define OUTUNPACK(n, x, m) \
x ^= ctx->w[m]; \
- out[4 * (n)] = x; out[4 * (n) + 1] = x >> 8; \
- out[4 * (n) + 2] = x >> 16; out[4 * (n) + 3] = x >> 24
+ dst[n] = cpu_to_le32(x)
#define TF_MIN_KEY_SIZE 16
#define TF_MAX_KEY_SIZE 32
static void twofish_encrypt(void *cx, u8 *out, const u8 *in)
{
struct twofish_ctx *ctx = cx;
+ const __le32 *src = (const __le32 *)in;
+ __le32 *dst = (__le32 *)out;
/* The four 32-bit chunks of the text. */
u32 a, b, c, d;
static void twofish_decrypt(void *cx, u8 *out, const u8 *in)
{
struct twofish_ctx *ctx = cx;
+ const __le32 *src = (const __le32 *)in;
+ __le32 *dst = (__le32 *)out;
/* The four 32-bit chunks of the text. */
u32 a, b, c, d;
.cra_flags = CRYPTO_ALG_TYPE_CIPHER,
.cra_blocksize = TF_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct twofish_ctx),
+ .cra_alignmask = 3,
.cra_module = THIS_MODULE,
.cra_list = LIST_HEAD_INIT(alg.cra_list),
.cra_u = { .cipher = {