2 * Portable implementation of core functions for GOST R 34.11-2012.
4 * Copyright (c) 2013 Cryptocom LTD.
5 * This file is distributed under the same license as OpenSSL.
7 * Author: Alexey Degtyarev <alexey@renatasystems.org>
11 #ifdef __GOST3411_HAS_SSE2__
12 # error "GOST R 34.11-2012: portable implementation disabled in config.h"
15 # pragma message "Use regular implementation"
17 #define X(x, y, z) { \
18 z->QWORD[0] = x->QWORD[0] ^ y->QWORD[0]; \
19 z->QWORD[1] = x->QWORD[1] ^ y->QWORD[1]; \
20 z->QWORD[2] = x->QWORD[2] ^ y->QWORD[2]; \
21 z->QWORD[3] = x->QWORD[3] ^ y->QWORD[3]; \
22 z->QWORD[4] = x->QWORD[4] ^ y->QWORD[4]; \
23 z->QWORD[5] = x->QWORD[5] ^ y->QWORD[5]; \
24 z->QWORD[6] = x->QWORD[6] ^ y->QWORD[6]; \
25 z->QWORD[7] = x->QWORD[7] ^ y->QWORD[7]; \
28 #ifndef __GOST3411_BIG_ENDIAN__
29 # define __XLPS_FOR for (_i = 0; _i <= 7; _i++)
32 # define __XLPS_FOR for (_i = 7; _i >= 0; _i--)
33 # define _datai 7 - _i
36 #define XLPS(x, y, data) { \
37 register unsigned long long r0, r1, r2, r3, r4, r5, r6, r7; \
40 r0 = x->QWORD[0] ^ y->QWORD[0]; \
41 r1 = x->QWORD[1] ^ y->QWORD[1]; \
42 r2 = x->QWORD[2] ^ y->QWORD[2]; \
43 r3 = x->QWORD[3] ^ y->QWORD[3]; \
44 r4 = x->QWORD[4] ^ y->QWORD[4]; \
45 r5 = x->QWORD[5] ^ y->QWORD[5]; \
46 r6 = x->QWORD[6] ^ y->QWORD[6]; \
47 r7 = x->QWORD[7] ^ y->QWORD[7]; \
51 data->QWORD[_datai] = Ax[0][(r0 >> (_i << 3)) & 0xFF]; \
52 data->QWORD[_datai] ^= Ax[1][(r1 >> (_i << 3)) & 0xFF]; \
53 data->QWORD[_datai] ^= Ax[2][(r2 >> (_i << 3)) & 0xFF]; \
54 data->QWORD[_datai] ^= Ax[3][(r3 >> (_i << 3)) & 0xFF]; \
55 data->QWORD[_datai] ^= Ax[4][(r4 >> (_i << 3)) & 0xFF]; \
56 data->QWORD[_datai] ^= Ax[5][(r5 >> (_i << 3)) & 0xFF]; \
57 data->QWORD[_datai] ^= Ax[6][(r6 >> (_i << 3)) & 0xFF]; \
58 data->QWORD[_datai] ^= Ax[7][(r7 >> (_i << 3)) & 0xFF]; \
62 #define ROUND(i, Ki, data) { \
63 XLPS(Ki, (&C[i]), Ki); \
64 XLPS(Ki, data, data); \