diff options
| author | Herbert Xu <herbert@gondor.apana.org.au> | 2005-10-30 21:25:15 +1100 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-01-09 14:15:34 -0800 |
| commit | 06ace7a9bafeb9047352707eb79e8eaa0dfdf5f2 (patch) | |
| tree | fa22bbc2e8ea5bee00b6aec353783144b6f8735a /crypto/twofish.c | |
| parent | 2df15fffc612b53b2c8e4ff3c981a82441bc00ae (diff) | |
[CRYPTO] Use standard byte order macros wherever possible
A lot of crypto code needs to read/write a 32-bit/64-bit words in a
specific gender. Many of them open code them by reading/writing one
byte at a time. This patch converts all the applicable usages over
to use the standard byte order macros.
This is based on a previous patch by Denis Vlasenko.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/twofish.c')
| -rw-r--r-- | crypto/twofish.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/crypto/twofish.c b/crypto/twofish.c index 4efff8cf995..b501d5ab9c4 100644 --- a/crypto/twofish.c +++ b/crypto/twofish.c @@ -37,6 +37,8 @@ * 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> @@ -621,13 +623,11 @@ static const u8 calc_sb_tbl[512] = { * 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 @@ -804,6 +804,8 @@ static int twofish_setkey(void *cx, const u8 *key, 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; @@ -839,6 +841,8 @@ static void twofish_encrypt(void *cx, u8 *out, const u8 *in) 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; |