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1764 lines
37 KiB
1764 lines
37 KiB
![]()
11 years ago
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/* $Id: shavite.c 227 2010-06-16 17:28:38Z tp $ */
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/*
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* SHAvite-3 implementation.
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*
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* ==========================(LICENSE BEGIN)============================
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*
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* Copyright (c) 2007-2010 Projet RNRT SAPHIR
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* ===========================(LICENSE END)=============================
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*
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* @author Thomas Pornin <thomas.pornin@cryptolog.com>
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*/
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#include <stddef.h>
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#include <string.h>
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#include "sph_shavite.h"
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#ifdef __cplusplus
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extern "C"{
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#endif
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#if SPH_SMALL_FOOTPRINT && !defined SPH_SMALL_FOOTPRINT_SHAVITE
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#define SPH_SMALL_FOOTPRINT_SHAVITE 1
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#endif
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#ifdef _MSC_VER
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#pragma warning (disable: 4146)
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#endif
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#define C32 SPH_C32
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/*
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* As of round 2 of the SHA-3 competition, the published reference
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* implementation and test vectors are wrong, because they use
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* big-endian AES tables while the internal decoding uses little-endian.
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* The code below follows the specification. To turn it into a code
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* which follows the reference implementation (the one called "BugFix"
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* on the SHAvite-3 web site, published on Nov 23rd, 2009), comment out
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* the code below (from the '#define AES_BIG_ENDIAN...' to the definition
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* of the AES_ROUND_NOKEY macro) and replace it with the version which
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* is commented out afterwards.
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*/
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#define AES_BIG_ENDIAN 0
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#include "aes_helper.c"
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static const sph_u32 IV224[] = {
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C32(0x6774F31C), C32(0x990AE210), C32(0xC87D4274), C32(0xC9546371),
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C32(0x62B2AEA8), C32(0x4B5801D8), C32(0x1B702860), C32(0x842F3017)
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};
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static const sph_u32 IV256[] = {
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C32(0x49BB3E47), C32(0x2674860D), C32(0xA8B392AC), C32(0x021AC4E6),
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C32(0x409283CF), C32(0x620E5D86), C32(0x6D929DCB), C32(0x96CC2A8B)
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};
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static const sph_u32 IV384[] = {
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C32(0x83DF1545), C32(0xF9AAEC13), C32(0xF4803CB0), C32(0x11FE1F47),
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C32(0xDA6CD269), C32(0x4F53FCD7), C32(0x950529A2), C32(0x97908147),
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C32(0xB0A4D7AF), C32(0x2B9132BF), C32(0x226E607D), C32(0x3C0F8D7C),
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C32(0x487B3F0F), C32(0x04363E22), C32(0x0155C99C), C32(0xEC2E20D3)
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};
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static const sph_u32 IV512[] = {
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C32(0x72FCCDD8), C32(0x79CA4727), C32(0x128A077B), C32(0x40D55AEC),
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C32(0xD1901A06), C32(0x430AE307), C32(0xB29F5CD1), C32(0xDF07FBFC),
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C32(0x8E45D73D), C32(0x681AB538), C32(0xBDE86578), C32(0xDD577E47),
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C32(0xE275EADE), C32(0x502D9FCD), C32(0xB9357178), C32(0x022A4B9A)
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};
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#define AES_ROUND_NOKEY(x0, x1, x2, x3) do { \
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sph_u32 t0 = (x0); \
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sph_u32 t1 = (x1); \
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sph_u32 t2 = (x2); \
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sph_u32 t3 = (x3); \
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AES_ROUND_NOKEY_LE(t0, t1, t2, t3, x0, x1, x2, x3); \
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} while (0)
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/*
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* This is the code needed to match the "reference implementation" as
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* published on Nov 23rd, 2009, instead of the published specification.
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*
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#define AES_BIG_ENDIAN 1
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#include "aes_helper.c"
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static const sph_u32 IV224[] = {
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C32(0xC4C67795), C32(0xC0B1817F), C32(0xEAD88924), C32(0x1ABB1BB0),
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C32(0xE0C29152), C32(0xBDE046BA), C32(0xAEEECF99), C32(0x58D509D8)
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};
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static const sph_u32 IV256[] = {
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C32(0x3EECF551), C32(0xBF10819B), C32(0xE6DC8559), C32(0xF3E23FD5),
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C32(0x431AEC73), C32(0x79E3F731), C32(0x98325F05), C32(0xA92A31F1)
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};
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static const sph_u32 IV384[] = {
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C32(0x71F48510), C32(0xA903A8AC), C32(0xFE3216DD), C32(0x0B2D2AD4),
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C32(0x6672900A), C32(0x41032819), C32(0x15A7D780), C32(0xB3CAB8D9),
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C32(0x34EF4711), C32(0xDE019FE8), C32(0x4D674DC4), C32(0xE056D96B),
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C32(0xA35C016B), C32(0xDD903BA7), C32(0x8C1B09B4), C32(0x2C3E9F25)
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};
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static const sph_u32 IV512[] = {
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C32(0xD5652B63), C32(0x25F1E6EA), C32(0xB18F48FA), C32(0xA1EE3A47),
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C32(0xC8B67B07), C32(0xBDCE48D3), C32(0xE3937B78), C32(0x05DB5186),
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C32(0x613BE326), C32(0xA11FA303), C32(0x90C833D4), C32(0x79CEE316),
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C32(0x1E1AF00F), C32(0x2829B165), C32(0x23B25F80), C32(0x21E11499)
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};
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#define AES_ROUND_NOKEY(x0, x1, x2, x3) do { \
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sph_u32 t0 = (x0); \
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sph_u32 t1 = (x1); \
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sph_u32 t2 = (x2); \
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sph_u32 t3 = (x3); \
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AES_ROUND_NOKEY_BE(t0, t1, t2, t3, x0, x1, x2, x3); \
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} while (0)
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*/
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#define KEY_EXPAND_ELT(k0, k1, k2, k3) do { \
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sph_u32 kt; \
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AES_ROUND_NOKEY(k1, k2, k3, k0); \
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kt = (k0); \
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(k0) = (k1); \
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(k1) = (k2); \
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(k2) = (k3); \
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(k3) = kt; \
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} while (0)
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#if SPH_SMALL_FOOTPRINT_SHAVITE
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/*
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* This function assumes that "msg" is aligned for 32-bit access.
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*/
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static void
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c256(sph_shavite_small_context *sc, const void *msg)
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{
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sph_u32 p0, p1, p2, p3, p4, p5, p6, p7;
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sph_u32 rk[144];
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size_t u;
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int r, s;
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#if SPH_LITTLE_ENDIAN
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memcpy(rk, msg, 64);
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#else
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for (u = 0; u < 16; u += 4) {
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rk[u + 0] = sph_dec32le_aligned(
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(const unsigned char *)msg + (u << 2) + 0);
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rk[u + 1] = sph_dec32le_aligned(
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(const unsigned char *)msg + (u << 2) + 4);
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rk[u + 2] = sph_dec32le_aligned(
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(const unsigned char *)msg + (u << 2) + 8);
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rk[u + 3] = sph_dec32le_aligned(
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(const unsigned char *)msg + (u << 2) + 12);
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}
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#endif
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u = 16;
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for (r = 0; r < 4; r ++) {
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for (s = 0; s < 2; s ++) {
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sph_u32 x0, x1, x2, x3;
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x0 = rk[u - 15];
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x1 = rk[u - 14];
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x2 = rk[u - 13];
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x3 = rk[u - 16];
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AES_ROUND_NOKEY(x0, x1, x2, x3);
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rk[u + 0] = x0 ^ rk[u - 4];
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rk[u + 1] = x1 ^ rk[u - 3];
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rk[u + 2] = x2 ^ rk[u - 2];
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rk[u + 3] = x3 ^ rk[u - 1];
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if (u == 16) {
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rk[ 16] ^= sc->count0;
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rk[ 17] ^= SPH_T32(~sc->count1);
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} else if (u == 56) {
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rk[ 57] ^= sc->count1;
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rk[ 58] ^= SPH_T32(~sc->count0);
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}
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u += 4;
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x0 = rk[u - 15];
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x1 = rk[u - 14];
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x2 = rk[u - 13];
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x3 = rk[u - 16];
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AES_ROUND_NOKEY(x0, x1, x2, x3);
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rk[u + 0] = x0 ^ rk[u - 4];
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rk[u + 1] = x1 ^ rk[u - 3];
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rk[u + 2] = x2 ^ rk[u - 2];
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rk[u + 3] = x3 ^ rk[u - 1];
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if (u == 84) {
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rk[ 86] ^= sc->count1;
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rk[ 87] ^= SPH_T32(~sc->count0);
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} else if (u == 124) {
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rk[124] ^= sc->count0;
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rk[127] ^= SPH_T32(~sc->count1);
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}
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u += 4;
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}
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for (s = 0; s < 4; s ++) {
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rk[u + 0] = rk[u - 16] ^ rk[u - 3];
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rk[u + 1] = rk[u - 15] ^ rk[u - 2];
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rk[u + 2] = rk[u - 14] ^ rk[u - 1];
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rk[u + 3] = rk[u - 13] ^ rk[u - 0];
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u += 4;
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}
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}
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p0 = sc->h[0x0];
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p1 = sc->h[0x1];
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p2 = sc->h[0x2];
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p3 = sc->h[0x3];
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p4 = sc->h[0x4];
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p5 = sc->h[0x5];
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p6 = sc->h[0x6];
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p7 = sc->h[0x7];
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u = 0;
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for (r = 0; r < 6; r ++) {
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sph_u32 x0, x1, x2, x3;
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x0 = p4 ^ rk[u ++];
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x1 = p5 ^ rk[u ++];
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x2 = p6 ^ rk[u ++];
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x3 = p7 ^ rk[u ++];
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AES_ROUND_NOKEY(x0, x1, x2, x3);
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x0 ^= rk[u ++];
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x1 ^= rk[u ++];
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x2 ^= rk[u ++];
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x3 ^= rk[u ++];
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AES_ROUND_NOKEY(x0, x1, x2, x3);
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x0 ^= rk[u ++];
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x1 ^= rk[u ++];
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x2 ^= rk[u ++];
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x3 ^= rk[u ++];
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AES_ROUND_NOKEY(x0, x1, x2, x3);
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p0 ^= x0;
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p1 ^= x1;
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p2 ^= x2;
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p3 ^= x3;
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x0 = p0 ^ rk[u ++];
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x1 = p1 ^ rk[u ++];
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x2 = p2 ^ rk[u ++];
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x3 = p3 ^ rk[u ++];
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AES_ROUND_NOKEY(x0, x1, x2, x3);
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x0 ^= rk[u ++];
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x1 ^= rk[u ++];
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x2 ^= rk[u ++];
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x3 ^= rk[u ++];
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AES_ROUND_NOKEY(x0, x1, x2, x3);
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x0 ^= rk[u ++];
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x1 ^= rk[u ++];
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x2 ^= rk[u ++];
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x3 ^= rk[u ++];
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AES_ROUND_NOKEY(x0, x1, x2, x3);
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p4 ^= x0;
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p5 ^= x1;
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p6 ^= x2;
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p7 ^= x3;
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}
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sc->h[0x0] ^= p0;
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sc->h[0x1] ^= p1;
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sc->h[0x2] ^= p2;
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sc->h[0x3] ^= p3;
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sc->h[0x4] ^= p4;
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sc->h[0x5] ^= p5;
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sc->h[0x6] ^= p6;
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sc->h[0x7] ^= p7;
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}
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#else
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|
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/*
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* This function assumes that "msg" is aligned for 32-bit access.
|
||
|
*/
|
||
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static void
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||
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c256(sph_shavite_small_context *sc, const void *msg)
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||
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{
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sph_u32 p0, p1, p2, p3, p4, p5, p6, p7;
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sph_u32 x0, x1, x2, x3;
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sph_u32 rk0, rk1, rk2, rk3, rk4, rk5, rk6, rk7;
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sph_u32 rk8, rk9, rkA, rkB, rkC, rkD, rkE, rkF;
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p0 = sc->h[0x0];
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p1 = sc->h[0x1];
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p2 = sc->h[0x2];
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p3 = sc->h[0x3];
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p4 = sc->h[0x4];
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p5 = sc->h[0x5];
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p6 = sc->h[0x6];
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p7 = sc->h[0x7];
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/* round 0 */
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rk0 = sph_dec32le_aligned((const unsigned char *)msg + 0);
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x0 = p4 ^ rk0;
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rk1 = sph_dec32le_aligned((const unsigned char *)msg + 4);
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x1 = p5 ^ rk1;
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rk2 = sph_dec32le_aligned((const unsigned char *)msg + 8);
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||
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x2 = p6 ^ rk2;
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rk3 = sph_dec32le_aligned((const unsigned char *)msg + 12);
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||
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x3 = p7 ^ rk3;
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||
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AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
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rk4 = sph_dec32le_aligned((const unsigned char *)msg + 16);
|
||
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x0 ^= rk4;
|
||
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rk5 = sph_dec32le_aligned((const unsigned char *)msg + 20);
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||
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x1 ^= rk5;
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||
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rk6 = sph_dec32le_aligned((const unsigned char *)msg + 24);
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||
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x2 ^= rk6;
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||
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rk7 = sph_dec32le_aligned((const unsigned char *)msg + 28);
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||
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x3 ^= rk7;
|
||
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AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
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rk8 = sph_dec32le_aligned((const unsigned char *)msg + 32);
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||
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x0 ^= rk8;
|
||
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rk9 = sph_dec32le_aligned((const unsigned char *)msg + 36);
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||
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x1 ^= rk9;
|
||
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rkA = sph_dec32le_aligned((const unsigned char *)msg + 40);
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||
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x2 ^= rkA;
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||
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rkB = sph_dec32le_aligned((const unsigned char *)msg + 44);
|
||
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x3 ^= rkB;
|
||
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AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
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p0 ^= x0;
|
||
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p1 ^= x1;
|
||
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p2 ^= x2;
|
||
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p3 ^= x3;
|
||
|
/* round 1 */
|
||
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rkC = sph_dec32le_aligned((const unsigned char *)msg + 48);
|
||
|
x0 = p0 ^ rkC;
|
||
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rkD = sph_dec32le_aligned((const unsigned char *)msg + 52);
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||
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x1 = p1 ^ rkD;
|
||
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rkE = sph_dec32le_aligned((const unsigned char *)msg + 56);
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||
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x2 = p2 ^ rkE;
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||
|
rkF = sph_dec32le_aligned((const unsigned char *)msg + 60);
|
||
|
x3 = p3 ^ rkF;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rk0, rk1, rk2, rk3);
|
||
|
rk0 ^= rkC ^ sc->count0;
|
||
|
rk1 ^= rkD ^ SPH_T32(~sc->count1);
|
||
|
rk2 ^= rkE;
|
||
|
rk3 ^= rkF;
|
||
|
x0 ^= rk0;
|
||
|
x1 ^= rk1;
|
||
|
x2 ^= rk2;
|
||
|
x3 ^= rk3;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rk4, rk5, rk6, rk7);
|
||
|
rk4 ^= rk0;
|
||
|
rk5 ^= rk1;
|
||
|
rk6 ^= rk2;
|
||
|
rk7 ^= rk3;
|
||
|
x0 ^= rk4;
|
||
|
x1 ^= rk5;
|
||
|
x2 ^= rk6;
|
||
|
x3 ^= rk7;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
p4 ^= x0;
|
||
|
p5 ^= x1;
|
||
|
p6 ^= x2;
|
||
|
p7 ^= x3;
|
||
|
/* round 2 */
|
||
|
KEY_EXPAND_ELT(rk8, rk9, rkA, rkB);
|
||
|
rk8 ^= rk4;
|
||
|
rk9 ^= rk5;
|
||
|
rkA ^= rk6;
|
||
|
rkB ^= rk7;
|
||
|
x0 = p4 ^ rk8;
|
||
|
x1 = p5 ^ rk9;
|
||
|
x2 = p6 ^ rkA;
|
||
|
x3 = p7 ^ rkB;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rkC, rkD, rkE, rkF);
|
||
|
rkC ^= rk8;
|
||
|
rkD ^= rk9;
|
||
|
rkE ^= rkA;
|
||
|
rkF ^= rkB;
|
||
|
x0 ^= rkC;
|
||
|
x1 ^= rkD;
|
||
|
x2 ^= rkE;
|
||
|
x3 ^= rkF;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk0 ^= rkD;
|
||
|
x0 ^= rk0;
|
||
|
rk1 ^= rkE;
|
||
|
x1 ^= rk1;
|
||
|
rk2 ^= rkF;
|
||
|
x2 ^= rk2;
|
||
|
rk3 ^= rk0;
|
||
|
x3 ^= rk3;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
p0 ^= x0;
|
||
|
p1 ^= x1;
|
||
|
p2 ^= x2;
|
||
|
p3 ^= x3;
|
||
|
/* round 3 */
|
||
|
rk4 ^= rk1;
|
||
|
x0 = p0 ^ rk4;
|
||
|
rk5 ^= rk2;
|
||
|
x1 = p1 ^ rk5;
|
||
|
rk6 ^= rk3;
|
||
|
x2 = p2 ^ rk6;
|
||
|
rk7 ^= rk4;
|
||
|
x3 = p3 ^ rk7;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk8 ^= rk5;
|
||
|
x0 ^= rk8;
|
||
|
rk9 ^= rk6;
|
||
|
x1 ^= rk9;
|
||
|
rkA ^= rk7;
|
||
|
x2 ^= rkA;
|
||
|
rkB ^= rk8;
|
||
|
x3 ^= rkB;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rkC ^= rk9;
|
||
|
x0 ^= rkC;
|
||
|
rkD ^= rkA;
|
||
|
x1 ^= rkD;
|
||
|
rkE ^= rkB;
|
||
|
x2 ^= rkE;
|
||
|
rkF ^= rkC;
|
||
|
x3 ^= rkF;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
p4 ^= x0;
|
||
|
p5 ^= x1;
|
||
|
p6 ^= x2;
|
||
|
p7 ^= x3;
|
||
|
/* round 4 */
|
||
|
KEY_EXPAND_ELT(rk0, rk1, rk2, rk3);
|
||
|
rk0 ^= rkC;
|
||
|
rk1 ^= rkD;
|
||
|
rk2 ^= rkE;
|
||
|
rk3 ^= rkF;
|
||
|
x0 = p4 ^ rk0;
|
||
|
x1 = p5 ^ rk1;
|
||
|
x2 = p6 ^ rk2;
|
||
|
x3 = p7 ^ rk3;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rk4, rk5, rk6, rk7);
|
||
|
rk4 ^= rk0;
|
||
|
rk5 ^= rk1;
|
||
|
rk6 ^= rk2;
|
||
|
rk7 ^= rk3;
|
||
|
x0 ^= rk4;
|
||
|
x1 ^= rk5;
|
||
|
x2 ^= rk6;
|
||
|
x3 ^= rk7;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rk8, rk9, rkA, rkB);
|
||
|
rk8 ^= rk4;
|
||
|
rk9 ^= rk5 ^ sc->count1;
|
||
|
rkA ^= rk6 ^ SPH_T32(~sc->count0);
|
||
|
rkB ^= rk7;
|
||
|
x0 ^= rk8;
|
||
|
x1 ^= rk9;
|
||
|
x2 ^= rkA;
|
||
|
x3 ^= rkB;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
p0 ^= x0;
|
||
|
p1 ^= x1;
|
||
|
p2 ^= x2;
|
||
|
p3 ^= x3;
|
||
|
/* round 5 */
|
||
|
KEY_EXPAND_ELT(rkC, rkD, rkE, rkF);
|
||
|
rkC ^= rk8;
|
||
|
rkD ^= rk9;
|
||
|
rkE ^= rkA;
|
||
|
rkF ^= rkB;
|
||
|
x0 = p0 ^ rkC;
|
||
|
x1 = p1 ^ rkD;
|
||
|
x2 = p2 ^ rkE;
|
||
|
x3 = p3 ^ rkF;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk0 ^= rkD;
|
||
|
x0 ^= rk0;
|
||
|
rk1 ^= rkE;
|
||
|
x1 ^= rk1;
|
||
|
rk2 ^= rkF;
|
||
|
x2 ^= rk2;
|
||
|
rk3 ^= rk0;
|
||
|
x3 ^= rk3;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk4 ^= rk1;
|
||
|
x0 ^= rk4;
|
||
|
rk5 ^= rk2;
|
||
|
x1 ^= rk5;
|
||
|
rk6 ^= rk3;
|
||
|
x2 ^= rk6;
|
||
|
rk7 ^= rk4;
|
||
|
x3 ^= rk7;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
p4 ^= x0;
|
||
|
p5 ^= x1;
|
||
|
p6 ^= x2;
|
||
|
p7 ^= x3;
|
||
|
/* round 6 */
|
||
|
rk8 ^= rk5;
|
||
|
x0 = p4 ^ rk8;
|
||
|
rk9 ^= rk6;
|
||
|
x1 = p5 ^ rk9;
|
||
|
rkA ^= rk7;
|
||
|
x2 = p6 ^ rkA;
|
||
|
rkB ^= rk8;
|
||
|
x3 = p7 ^ rkB;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rkC ^= rk9;
|
||
|
x0 ^= rkC;
|
||
|
rkD ^= rkA;
|
||
|
x1 ^= rkD;
|
||
|
rkE ^= rkB;
|
||
|
x2 ^= rkE;
|
||
|
rkF ^= rkC;
|
||
|
x3 ^= rkF;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rk0, rk1, rk2, rk3);
|
||
|
rk0 ^= rkC;
|
||
|
rk1 ^= rkD;
|
||
|
rk2 ^= rkE;
|
||
|
rk3 ^= rkF;
|
||
|
x0 ^= rk0;
|
||
|
x1 ^= rk1;
|
||
|
x2 ^= rk2;
|
||
|
x3 ^= rk3;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
p0 ^= x0;
|
||
|
p1 ^= x1;
|
||
|
p2 ^= x2;
|
||
|
p3 ^= x3;
|
||
|
/* round 7 */
|
||
|
KEY_EXPAND_ELT(rk4, rk5, rk6, rk7);
|
||
|
rk4 ^= rk0;
|
||
|
rk5 ^= rk1;
|
||
|
rk6 ^= rk2 ^ sc->count1;
|
||
|
rk7 ^= rk3 ^ SPH_T32(~sc->count0);
|
||
|
x0 = p0 ^ rk4;
|
||
|
x1 = p1 ^ rk5;
|
||
|
x2 = p2 ^ rk6;
|
||
|
x3 = p3 ^ rk7;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rk8, rk9, rkA, rkB);
|
||
|
rk8 ^= rk4;
|
||
|
rk9 ^= rk5;
|
||
|
rkA ^= rk6;
|
||
|
rkB ^= rk7;
|
||
|
x0 ^= rk8;
|
||
|
x1 ^= rk9;
|
||
|
x2 ^= rkA;
|
||
|
x3 ^= rkB;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rkC, rkD, rkE, rkF);
|
||
|
rkC ^= rk8;
|
||
|
rkD ^= rk9;
|
||
|
rkE ^= rkA;
|
||
|
rkF ^= rkB;
|
||
|
x0 ^= rkC;
|
||
|
x1 ^= rkD;
|
||
|
x2 ^= rkE;
|
||
|
x3 ^= rkF;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
p4 ^= x0;
|
||
|
p5 ^= x1;
|
||
|
p6 ^= x2;
|
||
|
p7 ^= x3;
|
||
|
/* round 8 */
|
||
|
rk0 ^= rkD;
|
||
|
x0 = p4 ^ rk0;
|
||
|
rk1 ^= rkE;
|
||
|
x1 = p5 ^ rk1;
|
||
|
rk2 ^= rkF;
|
||
|
x2 = p6 ^ rk2;
|
||
|
rk3 ^= rk0;
|
||
|
x3 = p7 ^ rk3;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk4 ^= rk1;
|
||
|
x0 ^= rk4;
|
||
|
rk5 ^= rk2;
|
||
|
x1 ^= rk5;
|
||
|
rk6 ^= rk3;
|
||
|
x2 ^= rk6;
|
||
|
rk7 ^= rk4;
|
||
|
x3 ^= rk7;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk8 ^= rk5;
|
||
|
x0 ^= rk8;
|
||
|
rk9 ^= rk6;
|
||
|
x1 ^= rk9;
|
||
|
rkA ^= rk7;
|
||
|
x2 ^= rkA;
|
||
|
rkB ^= rk8;
|
||
|
x3 ^= rkB;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
p0 ^= x0;
|
||
|
p1 ^= x1;
|
||
|
p2 ^= x2;
|
||
|
p3 ^= x3;
|
||
|
/* round 9 */
|
||
|
rkC ^= rk9;
|
||
|
x0 = p0 ^ rkC;
|
||
|
rkD ^= rkA;
|
||
|
x1 = p1 ^ rkD;
|
||
|
rkE ^= rkB;
|
||
|
x2 = p2 ^ rkE;
|
||
|
rkF ^= rkC;
|
||
|
x3 = p3 ^ rkF;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rk0, rk1, rk2, rk3);
|
||
|
rk0 ^= rkC;
|
||
|
rk1 ^= rkD;
|
||
|
rk2 ^= rkE;
|
||
|
rk3 ^= rkF;
|
||
|
x0 ^= rk0;
|
||
|
x1 ^= rk1;
|
||
|
x2 ^= rk2;
|
||
|
x3 ^= rk3;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rk4, rk5, rk6, rk7);
|
||
|
rk4 ^= rk0;
|
||
|
rk5 ^= rk1;
|
||
|
rk6 ^= rk2;
|
||
|
rk7 ^= rk3;
|
||
|
x0 ^= rk4;
|
||
|
x1 ^= rk5;
|
||
|
x2 ^= rk6;
|
||
|
x3 ^= rk7;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
p4 ^= x0;
|
||
|
p5 ^= x1;
|
||
|
p6 ^= x2;
|
||
|
p7 ^= x3;
|
||
|
/* round 10 */
|
||
|
KEY_EXPAND_ELT(rk8, rk9, rkA, rkB);
|
||
|
rk8 ^= rk4;
|
||
|
rk9 ^= rk5;
|
||
|
rkA ^= rk6;
|
||
|
rkB ^= rk7;
|
||
|
x0 = p4 ^ rk8;
|
||
|
x1 = p5 ^ rk9;
|
||
|
x2 = p6 ^ rkA;
|
||
|
x3 = p7 ^ rkB;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rkC, rkD, rkE, rkF);
|
||
|
rkC ^= rk8 ^ sc->count0;
|
||
|
rkD ^= rk9;
|
||
|
rkE ^= rkA;
|
||
|
rkF ^= rkB ^ SPH_T32(~sc->count1);
|
||
|
x0 ^= rkC;
|
||
|
x1 ^= rkD;
|
||
|
x2 ^= rkE;
|
||
|
x3 ^= rkF;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk0 ^= rkD;
|
||
|
x0 ^= rk0;
|
||
|
rk1 ^= rkE;
|
||
|
x1 ^= rk1;
|
||
|
rk2 ^= rkF;
|
||
|
x2 ^= rk2;
|
||
|
rk3 ^= rk0;
|
||
|
x3 ^= rk3;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
p0 ^= x0;
|
||
|
p1 ^= x1;
|
||
|
p2 ^= x2;
|
||
|
p3 ^= x3;
|
||
|
/* round 11 */
|
||
|
rk4 ^= rk1;
|
||
|
x0 = p0 ^ rk4;
|
||
|
rk5 ^= rk2;
|
||
|
x1 = p1 ^ rk5;
|
||
|
rk6 ^= rk3;
|
||
|
x2 = p2 ^ rk6;
|
||
|
rk7 ^= rk4;
|
||
|
x3 = p3 ^ rk7;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk8 ^= rk5;
|
||
|
x0 ^= rk8;
|
||
|
rk9 ^= rk6;
|
||
|
x1 ^= rk9;
|
||
|
rkA ^= rk7;
|
||
|
x2 ^= rkA;
|
||
|
rkB ^= rk8;
|
||
|
x3 ^= rkB;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rkC ^= rk9;
|
||
|
x0 ^= rkC;
|
||
|
rkD ^= rkA;
|
||
|
x1 ^= rkD;
|
||
|
rkE ^= rkB;
|
||
|
x2 ^= rkE;
|
||
|
rkF ^= rkC;
|
||
|
x3 ^= rkF;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
p4 ^= x0;
|
||
|
p5 ^= x1;
|
||
|
p6 ^= x2;
|
||
|
p7 ^= x3;
|
||
|
sc->h[0x0] ^= p0;
|
||
|
sc->h[0x1] ^= p1;
|
||
|
sc->h[0x2] ^= p2;
|
||
|
sc->h[0x3] ^= p3;
|
||
|
sc->h[0x4] ^= p4;
|
||
|
sc->h[0x5] ^= p5;
|
||
|
sc->h[0x6] ^= p6;
|
||
|
sc->h[0x7] ^= p7;
|
||
|
}
|
||
|
|
||
|
#endif
|
||
|
|
||
|
#if SPH_SMALL_FOOTPRINT_SHAVITE
|
||
|
|
||
|
/*
|
||
|
* This function assumes that "msg" is aligned for 32-bit access.
|
||
|
*/
|
||
|
static void
|
||
|
c512(sph_shavite_big_context *sc, const void *msg)
|
||
|
{
|
||
|
sph_u32 p0, p1, p2, p3, p4, p5, p6, p7;
|
||
|
sph_u32 p8, p9, pA, pB, pC, pD, pE, pF;
|
||
|
sph_u32 rk[448];
|
||
|
size_t u;
|
||
|
int r, s;
|
||
|
|
||
|
#if SPH_LITTLE_ENDIAN
|
||
|
memcpy(rk, msg, 128);
|
||
|
#else
|
||
|
for (u = 0; u < 32; u += 4) {
|
||
|
rk[u + 0] = sph_dec32le_aligned(
|
||
|
(const unsigned char *)msg + (u << 2) + 0);
|
||
|
rk[u + 1] = sph_dec32le_aligned(
|
||
|
(const unsigned char *)msg + (u << 2) + 4);
|
||
|
rk[u + 2] = sph_dec32le_aligned(
|
||
|
(const unsigned char *)msg + (u << 2) + 8);
|
||
|
rk[u + 3] = sph_dec32le_aligned(
|
||
|
(const unsigned char *)msg + (u << 2) + 12);
|
||
|
}
|
||
|
#endif
|
||
|
u = 32;
|
||
|
for (;;) {
|
||
|
for (s = 0; s < 4; s ++) {
|
||
|
sph_u32 x0, x1, x2, x3;
|
||
|
|
||
|
x0 = rk[u - 31];
|
||
|
x1 = rk[u - 30];
|
||
|
x2 = rk[u - 29];
|
||
|
x3 = rk[u - 32];
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk[u + 0] = x0 ^ rk[u - 4];
|
||
|
rk[u + 1] = x1 ^ rk[u - 3];
|
||
|
rk[u + 2] = x2 ^ rk[u - 2];
|
||
|
rk[u + 3] = x3 ^ rk[u - 1];
|
||
|
if (u == 32) {
|
||
|
rk[ 32] ^= sc->count0;
|
||
|
rk[ 33] ^= sc->count1;
|
||
|
rk[ 34] ^= sc->count2;
|
||
|
rk[ 35] ^= SPH_T32(~sc->count3);
|
||
|
} else if (u == 440) {
|
||
|
rk[440] ^= sc->count1;
|
||
|
rk[441] ^= sc->count0;
|
||
|
rk[442] ^= sc->count3;
|
||
|
rk[443] ^= SPH_T32(~sc->count2);
|
||
|
}
|
||
|
u += 4;
|
||
|
|
||
|
x0 = rk[u - 31];
|
||
|
x1 = rk[u - 30];
|
||
|
x2 = rk[u - 29];
|
||
|
x3 = rk[u - 32];
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk[u + 0] = x0 ^ rk[u - 4];
|
||
|
rk[u + 1] = x1 ^ rk[u - 3];
|
||
|
rk[u + 2] = x2 ^ rk[u - 2];
|
||
|
rk[u + 3] = x3 ^ rk[u - 1];
|
||
|
if (u == 164) {
|
||
|
rk[164] ^= sc->count3;
|
||
|
rk[165] ^= sc->count2;
|
||
|
rk[166] ^= sc->count1;
|
||
|
rk[167] ^= SPH_T32(~sc->count0);
|
||
|
} else if (u == 316) {
|
||
|
rk[316] ^= sc->count2;
|
||
|
rk[317] ^= sc->count3;
|
||
|
rk[318] ^= sc->count0;
|
||
|
rk[319] ^= SPH_T32(~sc->count1);
|
||
|
}
|
||
|
u += 4;
|
||
|
}
|
||
|
if (u == 448)
|
||
|
break;
|
||
|
for (s = 0; s < 8; s ++) {
|
||
|
rk[u + 0] = rk[u - 32] ^ rk[u - 7];
|
||
|
rk[u + 1] = rk[u - 31] ^ rk[u - 6];
|
||
|
rk[u + 2] = rk[u - 30] ^ rk[u - 5];
|
||
|
rk[u + 3] = rk[u - 29] ^ rk[u - 4];
|
||
|
u += 4;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
p0 = sc->h[0x0];
|
||
|
p1 = sc->h[0x1];
|
||
|
p2 = sc->h[0x2];
|
||
|
p3 = sc->h[0x3];
|
||
|
p4 = sc->h[0x4];
|
||
|
p5 = sc->h[0x5];
|
||
|
p6 = sc->h[0x6];
|
||
|
p7 = sc->h[0x7];
|
||
|
p8 = sc->h[0x8];
|
||
|
p9 = sc->h[0x9];
|
||
|
pA = sc->h[0xA];
|
||
|
pB = sc->h[0xB];
|
||
|
pC = sc->h[0xC];
|
||
|
pD = sc->h[0xD];
|
||
|
pE = sc->h[0xE];
|
||
|
pF = sc->h[0xF];
|
||
|
u = 0;
|
||
|
for (r = 0; r < 14; r ++) {
|
||
|
#define C512_ELT(l0, l1, l2, l3, r0, r1, r2, r3) do { \
|
||
|
sph_u32 x0, x1, x2, x3; \
|
||
|
x0 = r0 ^ rk[u ++]; \
|
||
|
x1 = r1 ^ rk[u ++]; \
|
||
|
x2 = r2 ^ rk[u ++]; \
|
||
|
x3 = r3 ^ rk[u ++]; \
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3); \
|
||
|
x0 ^= rk[u ++]; \
|
||
|
x1 ^= rk[u ++]; \
|
||
|
x2 ^= rk[u ++]; \
|
||
|
x3 ^= rk[u ++]; \
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3); \
|
||
|
x0 ^= rk[u ++]; \
|
||
|
x1 ^= rk[u ++]; \
|
||
|
x2 ^= rk[u ++]; \
|
||
|
x3 ^= rk[u ++]; \
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3); \
|
||
|
x0 ^= rk[u ++]; \
|
||
|
x1 ^= rk[u ++]; \
|
||
|
x2 ^= rk[u ++]; \
|
||
|
x3 ^= rk[u ++]; \
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3); \
|
||
|
l0 ^= x0; \
|
||
|
l1 ^= x1; \
|
||
|
l2 ^= x2; \
|
||
|
l3 ^= x3; \
|
||
|
} while (0)
|
||
|
|
||
|
#define WROT(a, b, c, d) do { \
|
||
|
sph_u32 t = d; \
|
||
|
d = c; \
|
||
|
c = b; \
|
||
|
b = a; \
|
||
|
a = t; \
|
||
|
} while (0)
|
||
|
|
||
|
C512_ELT(p0, p1, p2, p3, p4, p5, p6, p7);
|
||
|
C512_ELT(p8, p9, pA, pB, pC, pD, pE, pF);
|
||
|
|
||
|
WROT(p0, p4, p8, pC);
|
||
|
WROT(p1, p5, p9, pD);
|
||
|
WROT(p2, p6, pA, pE);
|
||
|
WROT(p3, p7, pB, pF);
|
||
|
|
||
|
#undef C512_ELT
|
||
|
#undef WROT
|
||
|
}
|
||
|
sc->h[0x0] ^= p0;
|
||
|
sc->h[0x1] ^= p1;
|
||
|
sc->h[0x2] ^= p2;
|
||
|
sc->h[0x3] ^= p3;
|
||
|
sc->h[0x4] ^= p4;
|
||
|
sc->h[0x5] ^= p5;
|
||
|
sc->h[0x6] ^= p6;
|
||
|
sc->h[0x7] ^= p7;
|
||
|
sc->h[0x8] ^= p8;
|
||
|
sc->h[0x9] ^= p9;
|
||
|
sc->h[0xA] ^= pA;
|
||
|
sc->h[0xB] ^= pB;
|
||
|
sc->h[0xC] ^= pC;
|
||
|
sc->h[0xD] ^= pD;
|
||
|
sc->h[0xE] ^= pE;
|
||
|
sc->h[0xF] ^= pF;
|
||
|
}
|
||
|
|
||
|
#else
|
||
|
|
||
|
/*
|
||
|
* This function assumes that "msg" is aligned for 32-bit access.
|
||
|
*/
|
||
|
static void
|
||
|
c512(sph_shavite_big_context *sc, const void *msg)
|
||
|
{
|
||
|
sph_u32 p0, p1, p2, p3, p4, p5, p6, p7;
|
||
|
sph_u32 p8, p9, pA, pB, pC, pD, pE, pF;
|
||
|
sph_u32 x0, x1, x2, x3;
|
||
|
sph_u32 rk00, rk01, rk02, rk03, rk04, rk05, rk06, rk07;
|
||
|
sph_u32 rk08, rk09, rk0A, rk0B, rk0C, rk0D, rk0E, rk0F;
|
||
|
sph_u32 rk10, rk11, rk12, rk13, rk14, rk15, rk16, rk17;
|
||
|
sph_u32 rk18, rk19, rk1A, rk1B, rk1C, rk1D, rk1E, rk1F;
|
||
|
int r;
|
||
|
|
||
|
p0 = sc->h[0x0];
|
||
|
p1 = sc->h[0x1];
|
||
|
p2 = sc->h[0x2];
|
||
|
p3 = sc->h[0x3];
|
||
|
p4 = sc->h[0x4];
|
||
|
p5 = sc->h[0x5];
|
||
|
p6 = sc->h[0x6];
|
||
|
p7 = sc->h[0x7];
|
||
|
p8 = sc->h[0x8];
|
||
|
p9 = sc->h[0x9];
|
||
|
pA = sc->h[0xA];
|
||
|
pB = sc->h[0xB];
|
||
|
pC = sc->h[0xC];
|
||
|
pD = sc->h[0xD];
|
||
|
pE = sc->h[0xE];
|
||
|
pF = sc->h[0xF];
|
||
|
/* round 0 */
|
||
|
rk00 = sph_dec32le_aligned((const unsigned char *)msg + 0);
|
||
|
x0 = p4 ^ rk00;
|
||
|
rk01 = sph_dec32le_aligned((const unsigned char *)msg + 4);
|
||
|
x1 = p5 ^ rk01;
|
||
|
rk02 = sph_dec32le_aligned((const unsigned char *)msg + 8);
|
||
|
x2 = p6 ^ rk02;
|
||
|
rk03 = sph_dec32le_aligned((const unsigned char *)msg + 12);
|
||
|
x3 = p7 ^ rk03;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk04 = sph_dec32le_aligned((const unsigned char *)msg + 16);
|
||
|
x0 ^= rk04;
|
||
|
rk05 = sph_dec32le_aligned((const unsigned char *)msg + 20);
|
||
|
x1 ^= rk05;
|
||
|
rk06 = sph_dec32le_aligned((const unsigned char *)msg + 24);
|
||
|
x2 ^= rk06;
|
||
|
rk07 = sph_dec32le_aligned((const unsigned char *)msg + 28);
|
||
|
x3 ^= rk07;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk08 = sph_dec32le_aligned((const unsigned char *)msg + 32);
|
||
|
x0 ^= rk08;
|
||
|
rk09 = sph_dec32le_aligned((const unsigned char *)msg + 36);
|
||
|
x1 ^= rk09;
|
||
|
rk0A = sph_dec32le_aligned((const unsigned char *)msg + 40);
|
||
|
x2 ^= rk0A;
|
||
|
rk0B = sph_dec32le_aligned((const unsigned char *)msg + 44);
|
||
|
x3 ^= rk0B;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk0C = sph_dec32le_aligned((const unsigned char *)msg + 48);
|
||
|
x0 ^= rk0C;
|
||
|
rk0D = sph_dec32le_aligned((const unsigned char *)msg + 52);
|
||
|
x1 ^= rk0D;
|
||
|
rk0E = sph_dec32le_aligned((const unsigned char *)msg + 56);
|
||
|
x2 ^= rk0E;
|
||
|
rk0F = sph_dec32le_aligned((const unsigned char *)msg + 60);
|
||
|
x3 ^= rk0F;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
p0 ^= x0;
|
||
|
p1 ^= x1;
|
||
|
p2 ^= x2;
|
||
|
p3 ^= x3;
|
||
|
rk10 = sph_dec32le_aligned((const unsigned char *)msg + 64);
|
||
|
x0 = pC ^ rk10;
|
||
|
rk11 = sph_dec32le_aligned((const unsigned char *)msg + 68);
|
||
|
x1 = pD ^ rk11;
|
||
|
rk12 = sph_dec32le_aligned((const unsigned char *)msg + 72);
|
||
|
x2 = pE ^ rk12;
|
||
|
rk13 = sph_dec32le_aligned((const unsigned char *)msg + 76);
|
||
|
x3 = pF ^ rk13;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk14 = sph_dec32le_aligned((const unsigned char *)msg + 80);
|
||
|
x0 ^= rk14;
|
||
|
rk15 = sph_dec32le_aligned((const unsigned char *)msg + 84);
|
||
|
x1 ^= rk15;
|
||
|
rk16 = sph_dec32le_aligned((const unsigned char *)msg + 88);
|
||
|
x2 ^= rk16;
|
||
|
rk17 = sph_dec32le_aligned((const unsigned char *)msg + 92);
|
||
|
x3 ^= rk17;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk18 = sph_dec32le_aligned((const unsigned char *)msg + 96);
|
||
|
x0 ^= rk18;
|
||
|
rk19 = sph_dec32le_aligned((const unsigned char *)msg + 100);
|
||
|
x1 ^= rk19;
|
||
|
rk1A = sph_dec32le_aligned((const unsigned char *)msg + 104);
|
||
|
x2 ^= rk1A;
|
||
|
rk1B = sph_dec32le_aligned((const unsigned char *)msg + 108);
|
||
|
x3 ^= rk1B;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk1C = sph_dec32le_aligned((const unsigned char *)msg + 112);
|
||
|
x0 ^= rk1C;
|
||
|
rk1D = sph_dec32le_aligned((const unsigned char *)msg + 116);
|
||
|
x1 ^= rk1D;
|
||
|
rk1E = sph_dec32le_aligned((const unsigned char *)msg + 120);
|
||
|
x2 ^= rk1E;
|
||
|
rk1F = sph_dec32le_aligned((const unsigned char *)msg + 124);
|
||
|
x3 ^= rk1F;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
p8 ^= x0;
|
||
|
p9 ^= x1;
|
||
|
pA ^= x2;
|
||
|
pB ^= x3;
|
||
|
|
||
|
for (r = 0; r < 3; r ++) {
|
||
|
/* round 1, 5, 9 */
|
||
|
KEY_EXPAND_ELT(rk00, rk01, rk02, rk03);
|
||
|
rk00 ^= rk1C;
|
||
|
rk01 ^= rk1D;
|
||
|
rk02 ^= rk1E;
|
||
|
rk03 ^= rk1F;
|
||
|
if (r == 0) {
|
||
|
rk00 ^= sc->count0;
|
||
|
rk01 ^= sc->count1;
|
||
|
rk02 ^= sc->count2;
|
||
|
rk03 ^= SPH_T32(~sc->count3);
|
||
|
}
|
||
|
x0 = p0 ^ rk00;
|
||
|
x1 = p1 ^ rk01;
|
||
|
x2 = p2 ^ rk02;
|
||
|
x3 = p3 ^ rk03;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rk04, rk05, rk06, rk07);
|
||
|
rk04 ^= rk00;
|
||
|
rk05 ^= rk01;
|
||
|
rk06 ^= rk02;
|
||
|
rk07 ^= rk03;
|
||
|
if (r == 1) {
|
||
|
rk04 ^= sc->count3;
|
||
|
rk05 ^= sc->count2;
|
||
|
rk06 ^= sc->count1;
|
||
|
rk07 ^= SPH_T32(~sc->count0);
|
||
|
}
|
||
|
x0 ^= rk04;
|
||
|
x1 ^= rk05;
|
||
|
x2 ^= rk06;
|
||
|
x3 ^= rk07;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rk08, rk09, rk0A, rk0B);
|
||
|
rk08 ^= rk04;
|
||
|
rk09 ^= rk05;
|
||
|
rk0A ^= rk06;
|
||
|
rk0B ^= rk07;
|
||
|
x0 ^= rk08;
|
||
|
x1 ^= rk09;
|
||
|
x2 ^= rk0A;
|
||
|
x3 ^= rk0B;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rk0C, rk0D, rk0E, rk0F);
|
||
|
rk0C ^= rk08;
|
||
|
rk0D ^= rk09;
|
||
|
rk0E ^= rk0A;
|
||
|
rk0F ^= rk0B;
|
||
|
x0 ^= rk0C;
|
||
|
x1 ^= rk0D;
|
||
|
x2 ^= rk0E;
|
||
|
x3 ^= rk0F;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
pC ^= x0;
|
||
|
pD ^= x1;
|
||
|
pE ^= x2;
|
||
|
pF ^= x3;
|
||
|
KEY_EXPAND_ELT(rk10, rk11, rk12, rk13);
|
||
|
rk10 ^= rk0C;
|
||
|
rk11 ^= rk0D;
|
||
|
rk12 ^= rk0E;
|
||
|
rk13 ^= rk0F;
|
||
|
x0 = p8 ^ rk10;
|
||
|
x1 = p9 ^ rk11;
|
||
|
x2 = pA ^ rk12;
|
||
|
x3 = pB ^ rk13;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rk14, rk15, rk16, rk17);
|
||
|
rk14 ^= rk10;
|
||
|
rk15 ^= rk11;
|
||
|
rk16 ^= rk12;
|
||
|
rk17 ^= rk13;
|
||
|
x0 ^= rk14;
|
||
|
x1 ^= rk15;
|
||
|
x2 ^= rk16;
|
||
|
x3 ^= rk17;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rk18, rk19, rk1A, rk1B);
|
||
|
rk18 ^= rk14;
|
||
|
rk19 ^= rk15;
|
||
|
rk1A ^= rk16;
|
||
|
rk1B ^= rk17;
|
||
|
x0 ^= rk18;
|
||
|
x1 ^= rk19;
|
||
|
x2 ^= rk1A;
|
||
|
x3 ^= rk1B;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rk1C, rk1D, rk1E, rk1F);
|
||
|
rk1C ^= rk18;
|
||
|
rk1D ^= rk19;
|
||
|
rk1E ^= rk1A;
|
||
|
rk1F ^= rk1B;
|
||
|
if (r == 2) {
|
||
|
rk1C ^= sc->count2;
|
||
|
rk1D ^= sc->count3;
|
||
|
rk1E ^= sc->count0;
|
||
|
rk1F ^= SPH_T32(~sc->count1);
|
||
|
}
|
||
|
x0 ^= rk1C;
|
||
|
x1 ^= rk1D;
|
||
|
x2 ^= rk1E;
|
||
|
x3 ^= rk1F;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
p4 ^= x0;
|
||
|
p5 ^= x1;
|
||
|
p6 ^= x2;
|
||
|
p7 ^= x3;
|
||
|
/* round 2, 6, 10 */
|
||
|
rk00 ^= rk19;
|
||
|
x0 = pC ^ rk00;
|
||
|
rk01 ^= rk1A;
|
||
|
x1 = pD ^ rk01;
|
||
|
rk02 ^= rk1B;
|
||
|
x2 = pE ^ rk02;
|
||
|
rk03 ^= rk1C;
|
||
|
x3 = pF ^ rk03;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk04 ^= rk1D;
|
||
|
x0 ^= rk04;
|
||
|
rk05 ^= rk1E;
|
||
|
x1 ^= rk05;
|
||
|
rk06 ^= rk1F;
|
||
|
x2 ^= rk06;
|
||
|
rk07 ^= rk00;
|
||
|
x3 ^= rk07;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk08 ^= rk01;
|
||
|
x0 ^= rk08;
|
||
|
rk09 ^= rk02;
|
||
|
x1 ^= rk09;
|
||
|
rk0A ^= rk03;
|
||
|
x2 ^= rk0A;
|
||
|
rk0B ^= rk04;
|
||
|
x3 ^= rk0B;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk0C ^= rk05;
|
||
|
x0 ^= rk0C;
|
||
|
rk0D ^= rk06;
|
||
|
x1 ^= rk0D;
|
||
|
rk0E ^= rk07;
|
||
|
x2 ^= rk0E;
|
||
|
rk0F ^= rk08;
|
||
|
x3 ^= rk0F;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
p8 ^= x0;
|
||
|
p9 ^= x1;
|
||
|
pA ^= x2;
|
||
|
pB ^= x3;
|
||
|
rk10 ^= rk09;
|
||
|
x0 = p4 ^ rk10;
|
||
|
rk11 ^= rk0A;
|
||
|
x1 = p5 ^ rk11;
|
||
|
rk12 ^= rk0B;
|
||
|
x2 = p6 ^ rk12;
|
||
|
rk13 ^= rk0C;
|
||
|
x3 = p7 ^ rk13;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk14 ^= rk0D;
|
||
|
x0 ^= rk14;
|
||
|
rk15 ^= rk0E;
|
||
|
x1 ^= rk15;
|
||
|
rk16 ^= rk0F;
|
||
|
x2 ^= rk16;
|
||
|
rk17 ^= rk10;
|
||
|
x3 ^= rk17;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk18 ^= rk11;
|
||
|
x0 ^= rk18;
|
||
|
rk19 ^= rk12;
|
||
|
x1 ^= rk19;
|
||
|
rk1A ^= rk13;
|
||
|
x2 ^= rk1A;
|
||
|
rk1B ^= rk14;
|
||
|
x3 ^= rk1B;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk1C ^= rk15;
|
||
|
x0 ^= rk1C;
|
||
|
rk1D ^= rk16;
|
||
|
x1 ^= rk1D;
|
||
|
rk1E ^= rk17;
|
||
|
x2 ^= rk1E;
|
||
|
rk1F ^= rk18;
|
||
|
x3 ^= rk1F;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
p0 ^= x0;
|
||
|
p1 ^= x1;
|
||
|
p2 ^= x2;
|
||
|
p3 ^= x3;
|
||
|
/* round 3, 7, 11 */
|
||
|
KEY_EXPAND_ELT(rk00, rk01, rk02, rk03);
|
||
|
rk00 ^= rk1C;
|
||
|
rk01 ^= rk1D;
|
||
|
rk02 ^= rk1E;
|
||
|
rk03 ^= rk1F;
|
||
|
x0 = p8 ^ rk00;
|
||
|
x1 = p9 ^ rk01;
|
||
|
x2 = pA ^ rk02;
|
||
|
x3 = pB ^ rk03;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rk04, rk05, rk06, rk07);
|
||
|
rk04 ^= rk00;
|
||
|
rk05 ^= rk01;
|
||
|
rk06 ^= rk02;
|
||
|
rk07 ^= rk03;
|
||
|
x0 ^= rk04;
|
||
|
x1 ^= rk05;
|
||
|
x2 ^= rk06;
|
||
|
x3 ^= rk07;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rk08, rk09, rk0A, rk0B);
|
||
|
rk08 ^= rk04;
|
||
|
rk09 ^= rk05;
|
||
|
rk0A ^= rk06;
|
||
|
rk0B ^= rk07;
|
||
|
x0 ^= rk08;
|
||
|
x1 ^= rk09;
|
||
|
x2 ^= rk0A;
|
||
|
x3 ^= rk0B;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rk0C, rk0D, rk0E, rk0F);
|
||
|
rk0C ^= rk08;
|
||
|
rk0D ^= rk09;
|
||
|
rk0E ^= rk0A;
|
||
|
rk0F ^= rk0B;
|
||
|
x0 ^= rk0C;
|
||
|
x1 ^= rk0D;
|
||
|
x2 ^= rk0E;
|
||
|
x3 ^= rk0F;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
p4 ^= x0;
|
||
|
p5 ^= x1;
|
||
|
p6 ^= x2;
|
||
|
p7 ^= x3;
|
||
|
KEY_EXPAND_ELT(rk10, rk11, rk12, rk13);
|
||
|
rk10 ^= rk0C;
|
||
|
rk11 ^= rk0D;
|
||
|
rk12 ^= rk0E;
|
||
|
rk13 ^= rk0F;
|
||
|
x0 = p0 ^ rk10;
|
||
|
x1 = p1 ^ rk11;
|
||
|
x2 = p2 ^ rk12;
|
||
|
x3 = p3 ^ rk13;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rk14, rk15, rk16, rk17);
|
||
|
rk14 ^= rk10;
|
||
|
rk15 ^= rk11;
|
||
|
rk16 ^= rk12;
|
||
|
rk17 ^= rk13;
|
||
|
x0 ^= rk14;
|
||
|
x1 ^= rk15;
|
||
|
x2 ^= rk16;
|
||
|
x3 ^= rk17;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rk18, rk19, rk1A, rk1B);
|
||
|
rk18 ^= rk14;
|
||
|
rk19 ^= rk15;
|
||
|
rk1A ^= rk16;
|
||
|
rk1B ^= rk17;
|
||
|
x0 ^= rk18;
|
||
|
x1 ^= rk19;
|
||
|
x2 ^= rk1A;
|
||
|
x3 ^= rk1B;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rk1C, rk1D, rk1E, rk1F);
|
||
|
rk1C ^= rk18;
|
||
|
rk1D ^= rk19;
|
||
|
rk1E ^= rk1A;
|
||
|
rk1F ^= rk1B;
|
||
|
x0 ^= rk1C;
|
||
|
x1 ^= rk1D;
|
||
|
x2 ^= rk1E;
|
||
|
x3 ^= rk1F;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
pC ^= x0;
|
||
|
pD ^= x1;
|
||
|
pE ^= x2;
|
||
|
pF ^= x3;
|
||
|
/* round 4, 8, 12 */
|
||
|
rk00 ^= rk19;
|
||
|
x0 = p4 ^ rk00;
|
||
|
rk01 ^= rk1A;
|
||
|
x1 = p5 ^ rk01;
|
||
|
rk02 ^= rk1B;
|
||
|
x2 = p6 ^ rk02;
|
||
|
rk03 ^= rk1C;
|
||
|
x3 = p7 ^ rk03;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk04 ^= rk1D;
|
||
|
x0 ^= rk04;
|
||
|
rk05 ^= rk1E;
|
||
|
x1 ^= rk05;
|
||
|
rk06 ^= rk1F;
|
||
|
x2 ^= rk06;
|
||
|
rk07 ^= rk00;
|
||
|
x3 ^= rk07;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk08 ^= rk01;
|
||
|
x0 ^= rk08;
|
||
|
rk09 ^= rk02;
|
||
|
x1 ^= rk09;
|
||
|
rk0A ^= rk03;
|
||
|
x2 ^= rk0A;
|
||
|
rk0B ^= rk04;
|
||
|
x3 ^= rk0B;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk0C ^= rk05;
|
||
|
x0 ^= rk0C;
|
||
|
rk0D ^= rk06;
|
||
|
x1 ^= rk0D;
|
||
|
rk0E ^= rk07;
|
||
|
x2 ^= rk0E;
|
||
|
rk0F ^= rk08;
|
||
|
x3 ^= rk0F;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
p0 ^= x0;
|
||
|
p1 ^= x1;
|
||
|
p2 ^= x2;
|
||
|
p3 ^= x3;
|
||
|
rk10 ^= rk09;
|
||
|
x0 = pC ^ rk10;
|
||
|
rk11 ^= rk0A;
|
||
|
x1 = pD ^ rk11;
|
||
|
rk12 ^= rk0B;
|
||
|
x2 = pE ^ rk12;
|
||
|
rk13 ^= rk0C;
|
||
|
x3 = pF ^ rk13;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk14 ^= rk0D;
|
||
|
x0 ^= rk14;
|
||
|
rk15 ^= rk0E;
|
||
|
x1 ^= rk15;
|
||
|
rk16 ^= rk0F;
|
||
|
x2 ^= rk16;
|
||
|
rk17 ^= rk10;
|
||
|
x3 ^= rk17;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk18 ^= rk11;
|
||
|
x0 ^= rk18;
|
||
|
rk19 ^= rk12;
|
||
|
x1 ^= rk19;
|
||
|
rk1A ^= rk13;
|
||
|
x2 ^= rk1A;
|
||
|
rk1B ^= rk14;
|
||
|
x3 ^= rk1B;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
rk1C ^= rk15;
|
||
|
x0 ^= rk1C;
|
||
|
rk1D ^= rk16;
|
||
|
x1 ^= rk1D;
|
||
|
rk1E ^= rk17;
|
||
|
x2 ^= rk1E;
|
||
|
rk1F ^= rk18;
|
||
|
x3 ^= rk1F;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
p8 ^= x0;
|
||
|
p9 ^= x1;
|
||
|
pA ^= x2;
|
||
|
pB ^= x3;
|
||
|
}
|
||
|
/* round 13 */
|
||
|
KEY_EXPAND_ELT(rk00, rk01, rk02, rk03);
|
||
|
rk00 ^= rk1C;
|
||
|
rk01 ^= rk1D;
|
||
|
rk02 ^= rk1E;
|
||
|
rk03 ^= rk1F;
|
||
|
x0 = p0 ^ rk00;
|
||
|
x1 = p1 ^ rk01;
|
||
|
x2 = p2 ^ rk02;
|
||
|
x3 = p3 ^ rk03;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rk04, rk05, rk06, rk07);
|
||
|
rk04 ^= rk00;
|
||
|
rk05 ^= rk01;
|
||
|
rk06 ^= rk02;
|
||
|
rk07 ^= rk03;
|
||
|
x0 ^= rk04;
|
||
|
x1 ^= rk05;
|
||
|
x2 ^= rk06;
|
||
|
x3 ^= rk07;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rk08, rk09, rk0A, rk0B);
|
||
|
rk08 ^= rk04;
|
||
|
rk09 ^= rk05;
|
||
|
rk0A ^= rk06;
|
||
|
rk0B ^= rk07;
|
||
|
x0 ^= rk08;
|
||
|
x1 ^= rk09;
|
||
|
x2 ^= rk0A;
|
||
|
x3 ^= rk0B;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rk0C, rk0D, rk0E, rk0F);
|
||
|
rk0C ^= rk08;
|
||
|
rk0D ^= rk09;
|
||
|
rk0E ^= rk0A;
|
||
|
rk0F ^= rk0B;
|
||
|
x0 ^= rk0C;
|
||
|
x1 ^= rk0D;
|
||
|
x2 ^= rk0E;
|
||
|
x3 ^= rk0F;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
pC ^= x0;
|
||
|
pD ^= x1;
|
||
|
pE ^= x2;
|
||
|
pF ^= x3;
|
||
|
KEY_EXPAND_ELT(rk10, rk11, rk12, rk13);
|
||
|
rk10 ^= rk0C;
|
||
|
rk11 ^= rk0D;
|
||
|
rk12 ^= rk0E;
|
||
|
rk13 ^= rk0F;
|
||
|
x0 = p8 ^ rk10;
|
||
|
x1 = p9 ^ rk11;
|
||
|
x2 = pA ^ rk12;
|
||
|
x3 = pB ^ rk13;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rk14, rk15, rk16, rk17);
|
||
|
rk14 ^= rk10;
|
||
|
rk15 ^= rk11;
|
||
|
rk16 ^= rk12;
|
||
|
rk17 ^= rk13;
|
||
|
x0 ^= rk14;
|
||
|
x1 ^= rk15;
|
||
|
x2 ^= rk16;
|
||
|
x3 ^= rk17;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rk18, rk19, rk1A, rk1B);
|
||
|
rk18 ^= rk14 ^ sc->count1;
|
||
|
rk19 ^= rk15 ^ sc->count0;
|
||
|
rk1A ^= rk16 ^ sc->count3;
|
||
|
rk1B ^= rk17 ^ SPH_T32(~sc->count2);
|
||
|
x0 ^= rk18;
|
||
|
x1 ^= rk19;
|
||
|
x2 ^= rk1A;
|
||
|
x3 ^= rk1B;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
KEY_EXPAND_ELT(rk1C, rk1D, rk1E, rk1F);
|
||
|
rk1C ^= rk18;
|
||
|
rk1D ^= rk19;
|
||
|
rk1E ^= rk1A;
|
||
|
rk1F ^= rk1B;
|
||
|
x0 ^= rk1C;
|
||
|
x1 ^= rk1D;
|
||
|
x2 ^= rk1E;
|
||
|
x3 ^= rk1F;
|
||
|
AES_ROUND_NOKEY(x0, x1, x2, x3);
|
||
|
p4 ^= x0;
|
||
|
p5 ^= x1;
|
||
|
p6 ^= x2;
|
||
|
p7 ^= x3;
|
||
|
sc->h[0x0] ^= p8;
|
||
|
sc->h[0x1] ^= p9;
|
||
|
sc->h[0x2] ^= pA;
|
||
|
sc->h[0x3] ^= pB;
|
||
|
sc->h[0x4] ^= pC;
|
||
|
sc->h[0x5] ^= pD;
|
||
|
sc->h[0x6] ^= pE;
|
||
|
sc->h[0x7] ^= pF;
|
||
|
sc->h[0x8] ^= p0;
|
||
|
sc->h[0x9] ^= p1;
|
||
|
sc->h[0xA] ^= p2;
|
||
|
sc->h[0xB] ^= p3;
|
||
|
sc->h[0xC] ^= p4;
|
||
|
sc->h[0xD] ^= p5;
|
||
|
sc->h[0xE] ^= p6;
|
||
|
sc->h[0xF] ^= p7;
|
||
|
}
|
||
|
|
||
|
#endif
|
||
|
|
||
|
static void
|
||
|
shavite_small_init(sph_shavite_small_context *sc, const sph_u32 *iv)
|
||
|
{
|
||
|
memcpy(sc->h, iv, sizeof sc->h);
|
||
|
sc->ptr = 0;
|
||
|
sc->count0 = 0;
|
||
|
sc->count1 = 0;
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
shavite_small_core(sph_shavite_small_context *sc, const void *data, size_t len)
|
||
|
{
|
||
|
unsigned char *buf;
|
||
|
size_t ptr;
|
||
|
|
||
|
buf = sc->buf;
|
||
|
ptr = sc->ptr;
|
||
|
while (len > 0) {
|
||
|
size_t clen;
|
||
|
|
||
|
clen = (sizeof sc->buf) - ptr;
|
||
|
if (clen > len)
|
||
|
clen = len;
|
||
|
memcpy(buf + ptr, data, clen);
|
||
|
data = (const unsigned char *)data + clen;
|
||
|
ptr += clen;
|
||
|
len -= clen;
|
||
|
if (ptr == sizeof sc->buf) {
|
||
|
if ((sc->count0 = SPH_T32(sc->count0 + 512)) == 0)
|
||
|
sc->count1 = SPH_T32(sc->count1 + 1);
|
||
|
c256(sc, buf);
|
||
|
ptr = 0;
|
||
|
}
|
||
|
}
|
||
|
sc->ptr = ptr;
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
shavite_small_close(sph_shavite_small_context *sc,
|
||
|
unsigned ub, unsigned n, void *dst, size_t out_size_w32)
|
||
|
{
|
||
|
unsigned char *buf;
|
||
|
size_t ptr, u;
|
||
|
unsigned z;
|
||
|
sph_u32 count0, count1;
|
||
|
|
||
|
buf = sc->buf;
|
||
|
ptr = sc->ptr;
|
||
|
count0 = (sc->count0 += (ptr << 3) + n);
|
||
|
count1 = sc->count1;
|
||
|
z = 0x80 >> n;
|
||
|
z = ((ub & -z) | z) & 0xFF;
|
||
|
if (ptr == 0 && n == 0) {
|
||
|
buf[0] = 0x80;
|
||
|
memset(buf + 1, 0, 53);
|
||
|
sc->count0 = sc->count1 = 0;
|
||
|
} else if (ptr < 54) {
|
||
|
buf[ptr ++] = z;
|
||
|
memset(buf + ptr, 0, 54 - ptr);
|
||
|
} else {
|
||
|
buf[ptr ++] = z;
|
||
|
memset(buf + ptr, 0, 64 - ptr);
|
||
|
c256(sc, buf);
|
||
|
memset(buf, 0, 54);
|
||
|
sc->count0 = sc->count1 = 0;
|
||
|
}
|
||
|
sph_enc32le(buf + 54, count0);
|
||
|
sph_enc32le(buf + 58, count1);
|
||
|
buf[62] = out_size_w32 << 5;
|
||
|
buf[63] = out_size_w32 >> 3;
|
||
|
c256(sc, buf);
|
||
|
for (u = 0; u < out_size_w32; u ++)
|
||
|
sph_enc32le((unsigned char *)dst + (u << 2), sc->h[u]);
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
shavite_big_init(sph_shavite_big_context *sc, const sph_u32 *iv)
|
||
|
{
|
||
|
memcpy(sc->h, iv, sizeof sc->h);
|
||
|
sc->ptr = 0;
|
||
|
sc->count0 = 0;
|
||
|
sc->count1 = 0;
|
||
|
sc->count2 = 0;
|
||
|
sc->count3 = 0;
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
shavite_big_core(sph_shavite_big_context *sc, const void *data, size_t len)
|
||
|
{
|
||
|
unsigned char *buf;
|
||
|
size_t ptr;
|
||
|
|
||
|
buf = sc->buf;
|
||
|
ptr = sc->ptr;
|
||
|
while (len > 0) {
|
||
|
size_t clen;
|
||
|
|
||
|
clen = (sizeof sc->buf) - ptr;
|
||
|
if (clen > len)
|
||
|
clen = len;
|
||
|
memcpy(buf + ptr, data, clen);
|
||
|
data = (const unsigned char *)data + clen;
|
||
|
ptr += clen;
|
||
|
len -= clen;
|
||
|
if (ptr == sizeof sc->buf) {
|
||
|
if ((sc->count0 = SPH_T32(sc->count0 + 1024)) == 0) {
|
||
|
sc->count1 = SPH_T32(sc->count1 + 1);
|
||
|
if (sc->count1 == 0) {
|
||
|
sc->count2 = SPH_T32(sc->count2 + 1);
|
||
|
if (sc->count2 == 0) {
|
||
|
sc->count3 = SPH_T32(
|
||
|
sc->count3 + 1);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
c512(sc, buf);
|
||
|
ptr = 0;
|
||
|
}
|
||
|
}
|
||
|
sc->ptr = ptr;
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
shavite_big_close(sph_shavite_big_context *sc,
|
||
|
unsigned ub, unsigned n, void *dst, size_t out_size_w32)
|
||
|
{
|
||
|
unsigned char *buf;
|
||
|
size_t ptr, u;
|
||
|
unsigned z;
|
||
|
sph_u32 count0, count1, count2, count3;
|
||
|
|
||
|
buf = sc->buf;
|
||
|
ptr = sc->ptr;
|
||
|
count0 = (sc->count0 += (ptr << 3) + n);
|
||
|
count1 = sc->count1;
|
||
|
count2 = sc->count2;
|
||
|
count3 = sc->count3;
|
||
|
z = 0x80 >> n;
|
||
|
z = ((ub & -z) | z) & 0xFF;
|
||
|
if (ptr == 0 && n == 0) {
|
||
|
buf[0] = 0x80;
|
||
|
memset(buf + 1, 0, 109);
|
||
|
sc->count0 = sc->count1 = sc->count2 = sc->count3 = 0;
|
||
|
} else if (ptr < 110) {
|
||
|
buf[ptr ++] = z;
|
||
|
memset(buf + ptr, 0, 110 - ptr);
|
||
|
} else {
|
||
|
buf[ptr ++] = z;
|
||
|
memset(buf + ptr, 0, 128 - ptr);
|
||
|
c512(sc, buf);
|
||
|
memset(buf, 0, 110);
|
||
|
sc->count0 = sc->count1 = sc->count2 = sc->count3 = 0;
|
||
|
}
|
||
|
sph_enc32le(buf + 110, count0);
|
||
|
sph_enc32le(buf + 114, count1);
|
||
|
sph_enc32le(buf + 118, count2);
|
||
|
sph_enc32le(buf + 122, count3);
|
||
|
buf[126] = out_size_w32 << 5;
|
||
|
buf[127] = out_size_w32 >> 3;
|
||
|
c512(sc, buf);
|
||
|
for (u = 0; u < out_size_w32; u ++)
|
||
|
sph_enc32le((unsigned char *)dst + (u << 2), sc->h[u]);
|
||
|
}
|
||
|
|
||
|
/* see sph_shavite.h */
|
||
|
void
|
||
|
sph_shavite224_init(void *cc)
|
||
|
{
|
||
|
shavite_small_init(cc, IV224);
|
||
|
}
|
||
|
|
||
|
/* see sph_shavite.h */
|
||
|
void
|
||
|
sph_shavite224(void *cc, const void *data, size_t len)
|
||
|
{
|
||
|
shavite_small_core(cc, data, len);
|
||
|
}
|
||
|
|
||
|
/* see sph_shavite.h */
|
||
|
void
|
||
|
sph_shavite224_close(void *cc, void *dst)
|
||
|
{
|
||
|
shavite_small_close(cc, 0, 0, dst, 7);
|
||
|
shavite_small_init(cc, IV224);
|
||
|
}
|
||
|
|
||
|
/* see sph_shavite.h */
|
||
|
void
|
||
|
sph_shavite224_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst)
|
||
|
{
|
||
|
shavite_small_close(cc, ub, n, dst, 7);
|
||
|
shavite_small_init(cc, IV224);
|
||
|
}
|
||
|
|
||
|
/* see sph_shavite.h */
|
||
|
void
|
||
|
sph_shavite256_init(void *cc)
|
||
|
{
|
||
|
shavite_small_init(cc, IV256);
|
||
|
}
|
||
|
|
||
|
/* see sph_shavite.h */
|
||
|
void
|
||
|
sph_shavite256(void *cc, const void *data, size_t len)
|
||
|
{
|
||
|
shavite_small_core(cc, data, len);
|
||
|
}
|
||
|
|
||
|
/* see sph_shavite.h */
|
||
|
void
|
||
|
sph_shavite256_close(void *cc, void *dst)
|
||
|
{
|
||
|
shavite_small_close(cc, 0, 0, dst, 8);
|
||
|
shavite_small_init(cc, IV256);
|
||
|
}
|
||
|
|
||
|
/* see sph_shavite.h */
|
||
|
void
|
||
|
sph_shavite256_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst)
|
||
|
{
|
||
|
shavite_small_close(cc, ub, n, dst, 8);
|
||
|
shavite_small_init(cc, IV256);
|
||
|
}
|
||
|
|
||
|
/* see sph_shavite.h */
|
||
|
void
|
||
|
sph_shavite384_init(void *cc)
|
||
|
{
|
||
|
shavite_big_init(cc, IV384);
|
||
|
}
|
||
|
|
||
|
/* see sph_shavite.h */
|
||
|
void
|
||
|
sph_shavite384(void *cc, const void *data, size_t len)
|
||
|
{
|
||
|
shavite_big_core(cc, data, len);
|
||
|
}
|
||
|
|
||
|
/* see sph_shavite.h */
|
||
|
void
|
||
|
sph_shavite384_close(void *cc, void *dst)
|
||
|
{
|
||
|
shavite_big_close(cc, 0, 0, dst, 12);
|
||
|
shavite_big_init(cc, IV384);
|
||
|
}
|
||
|
|
||
|
/* see sph_shavite.h */
|
||
|
void
|
||
|
sph_shavite384_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst)
|
||
|
{
|
||
|
shavite_big_close(cc, ub, n, dst, 12);
|
||
|
shavite_big_init(cc, IV384);
|
||
|
}
|
||
|
|
||
|
/* see sph_shavite.h */
|
||
|
void
|
||
|
sph_shavite512_init(void *cc)
|
||
|
{
|
||
|
shavite_big_init(cc, IV512);
|
||
|
}
|
||
|
|
||
|
/* see sph_shavite.h */
|
||
|
void
|
||
|
sph_shavite512(void *cc, const void *data, size_t len)
|
||
|
{
|
||
|
shavite_big_core(cc, data, len);
|
||
|
}
|
||
|
|
||
|
/* see sph_shavite.h */
|
||
|
void
|
||
|
sph_shavite512_close(void *cc, void *dst)
|
||
|
{
|
||
|
shavite_big_close(cc, 0, 0, dst, 16);
|
||
|
shavite_big_init(cc, IV512);
|
||
|
}
|
||
|
|
||
|
/* see sph_shavite.h */
|
||
|
void
|
||
|
sph_shavite512_addbits_and_close(void *cc, unsigned ub, unsigned n, void *dst)
|
||
|
{
|
||
|
shavite_big_close(cc, ub, n, dst, 16);
|
||
|
shavite_big_init(cc, IV512);
|
||
|
}
|
||
|
|
||
|
#ifdef __cplusplus
|
||
|
}
|
||
|
#endif
|