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| author | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2016-06-05 13:52:25 +0200 |
|---|---|---|
| committer | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2016-06-17 15:50:40 +0200 |
| commit | 21d567f73126ad9b22e8ed37ff2f066579d6afea (patch) | |
| tree | 76a738cae64ceb777dca25eacdf620ac285b4e4f /src/Crypto/Serpent.c | |
| parent | d4e95293d9ee74ca9a1003317597686509500bb7 (diff) | |
| download | VeraCrypt-21d567f73126ad9b22e8ed37ff2f066579d6afea.tar.gz VeraCrypt-21d567f73126ad9b22e8ed37ff2f066579d6afea.zip | |
Crypto: make Serpent source code use the same rotl32/rotr32 primitives as the other files.
Diffstat (limited to 'src/Crypto/Serpent.c')
| -rw-r--r-- | src/Crypto/Serpent.c | 66 |
1 files changed, 33 insertions, 33 deletions
diff --git a/src/Crypto/Serpent.c b/src/Crypto/Serpent.c index 2db76deb..23c1c504 100644 --- a/src/Crypto/Serpent.c +++ b/src/Crypto/Serpent.c @@ -10,37 +10,37 @@ #include "Serpent.h" #include "Common/Endian.h" -#include <memory.h> - -#if defined(_WIN32) && !defined(_DEBUG) +#ifdef TC_WINDOWS_BOOT #include <stdlib.h> -#define rotlFixed _rotl -#define rotrFixed _rotr +#pragma intrinsic(_lrotr,_lrotl) +#define rotr32(x,n) _lrotr(x, n) +#define rotl32(x,n) _lrotl(x, n) #else -#define rotlFixed(x,n) (((x) << (n)) | ((x) >> (32 - (n)))) -#define rotrFixed(x,n) (((x) >> (n)) | ((x) << (32 - (n)))) +#include "Crypto/misc.h" #endif +#include <memory.h> + // linear transformation #define LT(i,a,b,c,d,e) {\ - a = rotlFixed(a, 13); \ - c = rotlFixed(c, 3); \ - d = rotlFixed(d ^ c ^ (a << 3), 7); \ - b = rotlFixed(b ^ a ^ c, 1); \ - a = rotlFixed(a ^ b ^ d, 5); \ - c = rotlFixed(c ^ d ^ (b << 7), 22);} + a = rotl32(a, 13); \ + c = rotl32(c, 3); \ + d = rotl32(d ^ c ^ (a << 3), 7); \ + b = rotl32(b ^ a ^ c, 1); \ + a = rotl32(a ^ b ^ d, 5); \ + c = rotl32(c ^ d ^ (b << 7), 22);} // inverse linear transformation #define ILT(i,a,b,c,d,e) {\ - c = rotrFixed(c, 22); \ - a = rotrFixed(a, 5); \ + c = rotr32(c, 22); \ + a = rotr32(a, 5); \ c ^= d ^ (b << 7); \ a ^= b ^ d; \ - b = rotrFixed(b, 1); \ - d = rotrFixed(d, 7) ^ c ^ (a << 3); \ + b = rotr32(b, 1); \ + d = rotr32(d, 7) ^ c ^ (a << 3); \ b ^= a ^ c; \ - c = rotrFixed(c, 3); \ - a = rotrFixed(a, 13);} + c = rotr32(c, 3); \ + a = rotr32(a, 13);} // order of output from S-box functions #define beforeS0(f) f(0,a,b,c,d,e) @@ -644,7 +644,7 @@ void serpent_set_key(const unsigned __int8 userKey[],unsigned __int8 *ks) k += 8; t = k[-1]; for (i = 0; i < 132; ++i) - k[i] = t = rotlFixed(k[i-8] ^ k[i-5] ^ k[i-3] ^ t ^ 0x9e3779b9 ^ i, 11); + k[i] = t = rotl32(k[i-8] ^ k[i-5] ^ k[i-3] ^ t ^ 0x9e3779b9 ^ i, 11); k -= 20; #define LK(r, a, b, c, d, e) {\ @@ -705,7 +705,7 @@ void serpent_set_key(const unsigned __int8 userKey[], unsigned __int8 *ks) k += 8; t = k[-1]; for (i = 0; i < 132; ++i) - k[i] = t = rotlFixed(k[i-8] ^ k[i-5] ^ k[i-3] ^ t ^ 0x9e3779b9 ^ i, 11); + k[i] = t = rotl32(k[i-8] ^ k[i-5] ^ k[i-3] ^ t ^ 0x9e3779b9 ^ i, 11); k -= 20; for (i=0; i<4; i++) @@ -780,12 +780,12 @@ typedef unsigned __int32 uint32; static void LTf (uint32 *a, uint32 *b, uint32 *c, uint32 *d) { - *a = rotlFixed(*a, 13); - *c = rotlFixed(*c, 3); - *d = rotlFixed(*d ^ *c ^ (*a << 3), 7); - *b = rotlFixed(*b ^ *a ^ *c, 1); - *a = rotlFixed(*a ^ *b ^ *d, 5); - *c = rotlFixed(*c ^ *d ^ (*b << 7), 22); + *a = rotl32(*a, 13); + *c = rotl32(*c, 3); + *d = rotl32(*d ^ *c ^ (*a << 3), 7); + *b = rotl32(*b ^ *a ^ *c, 1); + *a = rotl32(*a ^ *b ^ *d, 5); + *c = rotl32(*c ^ *d ^ (*b << 7), 22); } void serpent_encrypt(const unsigned __int8 *inBlock, unsigned __int8 *outBlock, unsigned __int8 *ks) @@ -883,15 +883,15 @@ start: static void ILTf (uint32 *a, uint32 *b, uint32 *c, uint32 *d) { - *c = rotrFixed(*c, 22); - *a = rotrFixed(*a, 5); + *c = rotr32(*c, 22); + *a = rotr32(*a, 5); *c ^= *d ^ (*b << 7); *a ^= *b ^ *d; - *b = rotrFixed(*b, 1); - *d = rotrFixed(*d, 7) ^ *c ^ (*a << 3); + *b = rotr32(*b, 1); + *d = rotr32(*d, 7) ^ *c ^ (*a << 3); *b ^= *a ^ *c; - *c = rotrFixed(*c, 3); - *a = rotrFixed(*a, 13); + *c = rotr32(*c, 3); + *a = rotr32(*a, 13); } void serpent_decrypt(const unsigned __int8 *inBlock, unsigned __int8 *outBlock, unsigned __int8 *ks) |