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Jay D Dee
2016-09-22 13:16:18 -04:00
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commit a35039bc05
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/* $Id: ripemd.c 216 2010-06-08 09:46:57Z tp $ */
/*
* RIPEMD-160 implementation.
*
* ==========================(LICENSE BEGIN)============================
*
* Copyright (c) 2007-2010 Projet RNRT SAPHIR
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* ===========================(LICENSE END)=============================
*
* @author Thomas Pornin <thomas.pornin@cryptolog.com>
*/
#include <stddef.h>
#include <string.h>
#include "sph_ripemd.h"
/*
* Round functions for RIPEMD (original).
*/
#define F(x, y, z) ((((y) ^ (z)) & (x)) ^ (z))
#define G(x, y, z) (((x) & (y)) | (((x) | (y)) & (z)))
#define H(x, y, z) ((x) ^ (y) ^ (z))
static const sph_u32 oIV[5] = {
SPH_C32(0x67452301), SPH_C32(0xEFCDAB89),
SPH_C32(0x98BADCFE), SPH_C32(0x10325476)
};
/*
* Round functions for RIPEMD-128 and RIPEMD-160.
*/
#define F1(x, y, z) ((x) ^ (y) ^ (z))
#define F2(x, y, z) ((((y) ^ (z)) & (x)) ^ (z))
#define F3(x, y, z) (((x) | ~(y)) ^ (z))
#define F4(x, y, z) ((((x) ^ (y)) & (z)) ^ (y))
#define F5(x, y, z) ((x) ^ ((y) | ~(z)))
static const sph_u32 IV[5] = {
SPH_C32(0x67452301), SPH_C32(0xEFCDAB89), SPH_C32(0x98BADCFE),
SPH_C32(0x10325476), SPH_C32(0xC3D2E1F0)
};
#define ROTL SPH_ROTL32
/* ===================================================================== */
/*
* RIPEMD (original hash, deprecated).
*/
#define FF1(A, B, C, D, X, s) do { \
sph_u32 tmp = SPH_T32((A) + F(B, C, D) + (X)); \
(A) = ROTL(tmp, (s)); \
} while (0)
#define GG1(A, B, C, D, X, s) do { \
sph_u32 tmp = SPH_T32((A) + G(B, C, D) \
+ (X) + SPH_C32(0x5A827999)); \
(A) = ROTL(tmp, (s)); \
} while (0)
#define HH1(A, B, C, D, X, s) do { \
sph_u32 tmp = SPH_T32((A) + H(B, C, D) \
+ (X) + SPH_C32(0x6ED9EBA1)); \
(A) = ROTL(tmp, (s)); \
} while (0)
#define FF2(A, B, C, D, X, s) do { \
sph_u32 tmp = SPH_T32((A) + F(B, C, D) \
+ (X) + SPH_C32(0x50A28BE6)); \
(A) = ROTL(tmp, (s)); \
} while (0)
#define GG2(A, B, C, D, X, s) do { \
sph_u32 tmp = SPH_T32((A) + G(B, C, D) + (X)); \
(A) = ROTL(tmp, (s)); \
} while (0)
#define HH2(A, B, C, D, X, s) do { \
sph_u32 tmp = SPH_T32((A) + H(B, C, D) \
+ (X) + SPH_C32(0x5C4DD124)); \
(A) = ROTL(tmp, (s)); \
} while (0)
#define RIPEMD_ROUND_BODY(in, h) do { \
sph_u32 A1, B1, C1, D1; \
sph_u32 A2, B2, C2, D2; \
sph_u32 tmp; \
\
A1 = A2 = (h)[0]; \
B1 = B2 = (h)[1]; \
C1 = C2 = (h)[2]; \
D1 = D2 = (h)[3]; \
\
FF1(A1, B1, C1, D1, in( 0), 11); \
FF1(D1, A1, B1, C1, in( 1), 14); \
FF1(C1, D1, A1, B1, in( 2), 15); \
FF1(B1, C1, D1, A1, in( 3), 12); \
FF1(A1, B1, C1, D1, in( 4), 5); \
FF1(D1, A1, B1, C1, in( 5), 8); \
FF1(C1, D1, A1, B1, in( 6), 7); \
FF1(B1, C1, D1, A1, in( 7), 9); \
FF1(A1, B1, C1, D1, in( 8), 11); \
FF1(D1, A1, B1, C1, in( 9), 13); \
FF1(C1, D1, A1, B1, in(10), 14); \
FF1(B1, C1, D1, A1, in(11), 15); \
FF1(A1, B1, C1, D1, in(12), 6); \
FF1(D1, A1, B1, C1, in(13), 7); \
FF1(C1, D1, A1, B1, in(14), 9); \
FF1(B1, C1, D1, A1, in(15), 8); \
\
GG1(A1, B1, C1, D1, in( 7), 7); \
GG1(D1, A1, B1, C1, in( 4), 6); \
GG1(C1, D1, A1, B1, in(13), 8); \
GG1(B1, C1, D1, A1, in( 1), 13); \
GG1(A1, B1, C1, D1, in(10), 11); \
GG1(D1, A1, B1, C1, in( 6), 9); \
GG1(C1, D1, A1, B1, in(15), 7); \
GG1(B1, C1, D1, A1, in( 3), 15); \
GG1(A1, B1, C1, D1, in(12), 7); \
GG1(D1, A1, B1, C1, in( 0), 12); \
GG1(C1, D1, A1, B1, in( 9), 15); \
GG1(B1, C1, D1, A1, in( 5), 9); \
GG1(A1, B1, C1, D1, in(14), 7); \
GG1(D1, A1, B1, C1, in( 2), 11); \
GG1(C1, D1, A1, B1, in(11), 13); \
GG1(B1, C1, D1, A1, in( 8), 12); \
\
HH1(A1, B1, C1, D1, in( 3), 11); \
HH1(D1, A1, B1, C1, in(10), 13); \
HH1(C1, D1, A1, B1, in( 2), 14); \
HH1(B1, C1, D1, A1, in( 4), 7); \
HH1(A1, B1, C1, D1, in( 9), 14); \
HH1(D1, A1, B1, C1, in(15), 9); \
HH1(C1, D1, A1, B1, in( 8), 13); \
HH1(B1, C1, D1, A1, in( 1), 15); \
HH1(A1, B1, C1, D1, in(14), 6); \
HH1(D1, A1, B1, C1, in( 7), 8); \
HH1(C1, D1, A1, B1, in( 0), 13); \
HH1(B1, C1, D1, A1, in( 6), 6); \
HH1(A1, B1, C1, D1, in(11), 12); \
HH1(D1, A1, B1, C1, in(13), 5); \
HH1(C1, D1, A1, B1, in( 5), 7); \
HH1(B1, C1, D1, A1, in(12), 5); \
\
FF2(A2, B2, C2, D2, in( 0), 11); \
FF2(D2, A2, B2, C2, in( 1), 14); \
FF2(C2, D2, A2, B2, in( 2), 15); \
FF2(B2, C2, D2, A2, in( 3), 12); \
FF2(A2, B2, C2, D2, in( 4), 5); \
FF2(D2, A2, B2, C2, in( 5), 8); \
FF2(C2, D2, A2, B2, in( 6), 7); \
FF2(B2, C2, D2, A2, in( 7), 9); \
FF2(A2, B2, C2, D2, in( 8), 11); \
FF2(D2, A2, B2, C2, in( 9), 13); \
FF2(C2, D2, A2, B2, in(10), 14); \
FF2(B2, C2, D2, A2, in(11), 15); \
FF2(A2, B2, C2, D2, in(12), 6); \
FF2(D2, A2, B2, C2, in(13), 7); \
FF2(C2, D2, A2, B2, in(14), 9); \
FF2(B2, C2, D2, A2, in(15), 8); \
\
GG2(A2, B2, C2, D2, in( 7), 7); \
GG2(D2, A2, B2, C2, in( 4), 6); \
GG2(C2, D2, A2, B2, in(13), 8); \
GG2(B2, C2, D2, A2, in( 1), 13); \
GG2(A2, B2, C2, D2, in(10), 11); \
GG2(D2, A2, B2, C2, in( 6), 9); \
GG2(C2, D2, A2, B2, in(15), 7); \
GG2(B2, C2, D2, A2, in( 3), 15); \
GG2(A2, B2, C2, D2, in(12), 7); \
GG2(D2, A2, B2, C2, in( 0), 12); \
GG2(C2, D2, A2, B2, in( 9), 15); \
GG2(B2, C2, D2, A2, in( 5), 9); \
GG2(A2, B2, C2, D2, in(14), 7); \
GG2(D2, A2, B2, C2, in( 2), 11); \
GG2(C2, D2, A2, B2, in(11), 13); \
GG2(B2, C2, D2, A2, in( 8), 12); \
\
HH2(A2, B2, C2, D2, in( 3), 11); \
HH2(D2, A2, B2, C2, in(10), 13); \
HH2(C2, D2, A2, B2, in( 2), 14); \
HH2(B2, C2, D2, A2, in( 4), 7); \
HH2(A2, B2, C2, D2, in( 9), 14); \
HH2(D2, A2, B2, C2, in(15), 9); \
HH2(C2, D2, A2, B2, in( 8), 13); \
HH2(B2, C2, D2, A2, in( 1), 15); \
HH2(A2, B2, C2, D2, in(14), 6); \
HH2(D2, A2, B2, C2, in( 7), 8); \
HH2(C2, D2, A2, B2, in( 0), 13); \
HH2(B2, C2, D2, A2, in( 6), 6); \
HH2(A2, B2, C2, D2, in(11), 12); \
HH2(D2, A2, B2, C2, in(13), 5); \
HH2(C2, D2, A2, B2, in( 5), 7); \
HH2(B2, C2, D2, A2, in(12), 5); \
\
tmp = SPH_T32((h)[1] + C1 + D2); \
(h)[1] = SPH_T32((h)[2] + D1 + A2); \
(h)[2] = SPH_T32((h)[3] + A1 + B2); \
(h)[3] = SPH_T32((h)[0] + B1 + C2); \
(h)[0] = tmp; \
} while (0)
/*
* One round of RIPEMD. The data must be aligned for 32-bit access.
*/
static void
ripemd_round(const unsigned char *data, sph_u32 r[5])
{
#if SPH_LITTLE_FAST
#define RIPEMD_IN(x) sph_dec32le_aligned(data + (4 * (x)))
#else
sph_u32 X_var[16];
int i;
for (i = 0; i < 16; i ++)
X_var[i] = sph_dec32le_aligned(data + 4 * i);
#define RIPEMD_IN(x) X_var[x]
#endif
RIPEMD_ROUND_BODY(RIPEMD_IN, r);
#undef RIPEMD_IN
}
/* see sph_ripemd.h */
void
sph_ripemd_init(void *cc)
{
sph_ripemd_context *sc;
sc = (sph_ripemd_context*)cc;
memcpy(sc->val, oIV, sizeof sc->val);
#if SPH_64
sc->count = 0;
#else
sc->count_high = sc->count_low = 0;
#endif
}
#define RFUN ripemd_round
#define HASH ripemd
#define LE32 1
#include "algo/sha3/md_helper.c"
#undef RFUN
#undef HASH
#undef LE32
/* see sph_ripemd.h */
void
sph_ripemd_close(void *cc, void *dst)
{
ripemd_close(cc, dst, 4);
// sph_ripemd_init(cc);
}
/* see sph_ripemd.h */
void
sph_ripemd_comp(const sph_u32 msg[16], sph_u32 val[4])
{
#define RIPEMD_IN(x) msg[x]
RIPEMD_ROUND_BODY(RIPEMD_IN, val);
#undef RIPEMD_IN
}
/* ===================================================================== */
/*
* RIPEMD-128.
*/
/*
* Round constants for RIPEMD-128.
*/
#define sK11 SPH_C32(0x00000000)
#define sK12 SPH_C32(0x5A827999)
#define sK13 SPH_C32(0x6ED9EBA1)
#define sK14 SPH_C32(0x8F1BBCDC)
#define sK21 SPH_C32(0x50A28BE6)
#define sK22 SPH_C32(0x5C4DD124)
#define sK23 SPH_C32(0x6D703EF3)
#define sK24 SPH_C32(0x00000000)
#define sRR(a, b, c, d, f, s, r, k) do { \
a = ROTL(SPH_T32(a + f(b, c, d) + r + k), s); \
} while (0)
#define sROUND1(a, b, c, d, f, s, r, k) \
sRR(a ## 1, b ## 1, c ## 1, d ## 1, f, s, r, sK1 ## k)
#define sROUND2(a, b, c, d, f, s, r, k) \
sRR(a ## 2, b ## 2, c ## 2, d ## 2, f, s, r, sK2 ## k)
/*
* This macro defines the body for a RIPEMD-128 compression function
* implementation. The "in" parameter should evaluate, when applied to a
* numerical input parameter from 0 to 15, to an expression which yields
* the corresponding input block. The "h" parameter should evaluate to
* an array or pointer expression designating the array of 4 words which
* contains the input and output of the compression function.
*/
#define RIPEMD128_ROUND_BODY(in, h) do { \
sph_u32 A1, B1, C1, D1; \
sph_u32 A2, B2, C2, D2; \
sph_u32 tmp; \
\
A1 = A2 = (h)[0]; \
B1 = B2 = (h)[1]; \
C1 = C2 = (h)[2]; \
D1 = D2 = (h)[3]; \
\
sROUND1(A, B, C, D, F1, 11, in( 0), 1); \
sROUND1(D, A, B, C, F1, 14, in( 1), 1); \
sROUND1(C, D, A, B, F1, 15, in( 2), 1); \
sROUND1(B, C, D, A, F1, 12, in( 3), 1); \
sROUND1(A, B, C, D, F1, 5, in( 4), 1); \
sROUND1(D, A, B, C, F1, 8, in( 5), 1); \
sROUND1(C, D, A, B, F1, 7, in( 6), 1); \
sROUND1(B, C, D, A, F1, 9, in( 7), 1); \
sROUND1(A, B, C, D, F1, 11, in( 8), 1); \
sROUND1(D, A, B, C, F1, 13, in( 9), 1); \
sROUND1(C, D, A, B, F1, 14, in(10), 1); \
sROUND1(B, C, D, A, F1, 15, in(11), 1); \
sROUND1(A, B, C, D, F1, 6, in(12), 1); \
sROUND1(D, A, B, C, F1, 7, in(13), 1); \
sROUND1(C, D, A, B, F1, 9, in(14), 1); \
sROUND1(B, C, D, A, F1, 8, in(15), 1); \
\
sROUND1(A, B, C, D, F2, 7, in( 7), 2); \
sROUND1(D, A, B, C, F2, 6, in( 4), 2); \
sROUND1(C, D, A, B, F2, 8, in(13), 2); \
sROUND1(B, C, D, A, F2, 13, in( 1), 2); \
sROUND1(A, B, C, D, F2, 11, in(10), 2); \
sROUND1(D, A, B, C, F2, 9, in( 6), 2); \
sROUND1(C, D, A, B, F2, 7, in(15), 2); \
sROUND1(B, C, D, A, F2, 15, in( 3), 2); \
sROUND1(A, B, C, D, F2, 7, in(12), 2); \
sROUND1(D, A, B, C, F2, 12, in( 0), 2); \
sROUND1(C, D, A, B, F2, 15, in( 9), 2); \
sROUND1(B, C, D, A, F2, 9, in( 5), 2); \
sROUND1(A, B, C, D, F2, 11, in( 2), 2); \
sROUND1(D, A, B, C, F2, 7, in(14), 2); \
sROUND1(C, D, A, B, F2, 13, in(11), 2); \
sROUND1(B, C, D, A, F2, 12, in( 8), 2); \
\
sROUND1(A, B, C, D, F3, 11, in( 3), 3); \
sROUND1(D, A, B, C, F3, 13, in(10), 3); \
sROUND1(C, D, A, B, F3, 6, in(14), 3); \
sROUND1(B, C, D, A, F3, 7, in( 4), 3); \
sROUND1(A, B, C, D, F3, 14, in( 9), 3); \
sROUND1(D, A, B, C, F3, 9, in(15), 3); \
sROUND1(C, D, A, B, F3, 13, in( 8), 3); \
sROUND1(B, C, D, A, F3, 15, in( 1), 3); \
sROUND1(A, B, C, D, F3, 14, in( 2), 3); \
sROUND1(D, A, B, C, F3, 8, in( 7), 3); \
sROUND1(C, D, A, B, F3, 13, in( 0), 3); \
sROUND1(B, C, D, A, F3, 6, in( 6), 3); \
sROUND1(A, B, C, D, F3, 5, in(13), 3); \
sROUND1(D, A, B, C, F3, 12, in(11), 3); \
sROUND1(C, D, A, B, F3, 7, in( 5), 3); \
sROUND1(B, C, D, A, F3, 5, in(12), 3); \
\
sROUND1(A, B, C, D, F4, 11, in( 1), 4); \
sROUND1(D, A, B, C, F4, 12, in( 9), 4); \
sROUND1(C, D, A, B, F4, 14, in(11), 4); \
sROUND1(B, C, D, A, F4, 15, in(10), 4); \
sROUND1(A, B, C, D, F4, 14, in( 0), 4); \
sROUND1(D, A, B, C, F4, 15, in( 8), 4); \
sROUND1(C, D, A, B, F4, 9, in(12), 4); \
sROUND1(B, C, D, A, F4, 8, in( 4), 4); \
sROUND1(A, B, C, D, F4, 9, in(13), 4); \
sROUND1(D, A, B, C, F4, 14, in( 3), 4); \
sROUND1(C, D, A, B, F4, 5, in( 7), 4); \
sROUND1(B, C, D, A, F4, 6, in(15), 4); \
sROUND1(A, B, C, D, F4, 8, in(14), 4); \
sROUND1(D, A, B, C, F4, 6, in( 5), 4); \
sROUND1(C, D, A, B, F4, 5, in( 6), 4); \
sROUND1(B, C, D, A, F4, 12, in( 2), 4); \
\
sROUND2(A, B, C, D, F4, 8, in( 5), 1); \
sROUND2(D, A, B, C, F4, 9, in(14), 1); \
sROUND2(C, D, A, B, F4, 9, in( 7), 1); \
sROUND2(B, C, D, A, F4, 11, in( 0), 1); \
sROUND2(A, B, C, D, F4, 13, in( 9), 1); \
sROUND2(D, A, B, C, F4, 15, in( 2), 1); \
sROUND2(C, D, A, B, F4, 15, in(11), 1); \
sROUND2(B, C, D, A, F4, 5, in( 4), 1); \
sROUND2(A, B, C, D, F4, 7, in(13), 1); \
sROUND2(D, A, B, C, F4, 7, in( 6), 1); \
sROUND2(C, D, A, B, F4, 8, in(15), 1); \
sROUND2(B, C, D, A, F4, 11, in( 8), 1); \
sROUND2(A, B, C, D, F4, 14, in( 1), 1); \
sROUND2(D, A, B, C, F4, 14, in(10), 1); \
sROUND2(C, D, A, B, F4, 12, in( 3), 1); \
sROUND2(B, C, D, A, F4, 6, in(12), 1); \
\
sROUND2(A, B, C, D, F3, 9, in( 6), 2); \
sROUND2(D, A, B, C, F3, 13, in(11), 2); \
sROUND2(C, D, A, B, F3, 15, in( 3), 2); \
sROUND2(B, C, D, A, F3, 7, in( 7), 2); \
sROUND2(A, B, C, D, F3, 12, in( 0), 2); \
sROUND2(D, A, B, C, F3, 8, in(13), 2); \
sROUND2(C, D, A, B, F3, 9, in( 5), 2); \
sROUND2(B, C, D, A, F3, 11, in(10), 2); \
sROUND2(A, B, C, D, F3, 7, in(14), 2); \
sROUND2(D, A, B, C, F3, 7, in(15), 2); \
sROUND2(C, D, A, B, F3, 12, in( 8), 2); \
sROUND2(B, C, D, A, F3, 7, in(12), 2); \
sROUND2(A, B, C, D, F3, 6, in( 4), 2); \
sROUND2(D, A, B, C, F3, 15, in( 9), 2); \
sROUND2(C, D, A, B, F3, 13, in( 1), 2); \
sROUND2(B, C, D, A, F3, 11, in( 2), 2); \
\
sROUND2(A, B, C, D, F2, 9, in(15), 3); \
sROUND2(D, A, B, C, F2, 7, in( 5), 3); \
sROUND2(C, D, A, B, F2, 15, in( 1), 3); \
sROUND2(B, C, D, A, F2, 11, in( 3), 3); \
sROUND2(A, B, C, D, F2, 8, in( 7), 3); \
sROUND2(D, A, B, C, F2, 6, in(14), 3); \
sROUND2(C, D, A, B, F2, 6, in( 6), 3); \
sROUND2(B, C, D, A, F2, 14, in( 9), 3); \
sROUND2(A, B, C, D, F2, 12, in(11), 3); \
sROUND2(D, A, B, C, F2, 13, in( 8), 3); \
sROUND2(C, D, A, B, F2, 5, in(12), 3); \
sROUND2(B, C, D, A, F2, 14, in( 2), 3); \
sROUND2(A, B, C, D, F2, 13, in(10), 3); \
sROUND2(D, A, B, C, F2, 13, in( 0), 3); \
sROUND2(C, D, A, B, F2, 7, in( 4), 3); \
sROUND2(B, C, D, A, F2, 5, in(13), 3); \
\
sROUND2(A, B, C, D, F1, 15, in( 8), 4); \
sROUND2(D, A, B, C, F1, 5, in( 6), 4); \
sROUND2(C, D, A, B, F1, 8, in( 4), 4); \
sROUND2(B, C, D, A, F1, 11, in( 1), 4); \
sROUND2(A, B, C, D, F1, 14, in( 3), 4); \
sROUND2(D, A, B, C, F1, 14, in(11), 4); \
sROUND2(C, D, A, B, F1, 6, in(15), 4); \
sROUND2(B, C, D, A, F1, 14, in( 0), 4); \
sROUND2(A, B, C, D, F1, 6, in( 5), 4); \
sROUND2(D, A, B, C, F1, 9, in(12), 4); \
sROUND2(C, D, A, B, F1, 12, in( 2), 4); \
sROUND2(B, C, D, A, F1, 9, in(13), 4); \
sROUND2(A, B, C, D, F1, 12, in( 9), 4); \
sROUND2(D, A, B, C, F1, 5, in( 7), 4); \
sROUND2(C, D, A, B, F1, 15, in(10), 4); \
sROUND2(B, C, D, A, F1, 8, in(14), 4); \
\
tmp = SPH_T32((h)[1] + C1 + D2); \
(h)[1] = SPH_T32((h)[2] + D1 + A2); \
(h)[2] = SPH_T32((h)[3] + A1 + B2); \
(h)[3] = SPH_T32((h)[0] + B1 + C2); \
(h)[0] = tmp; \
} while (0)
/*
* One round of RIPEMD-128. The data must be aligned for 32-bit access.
*/
static void
ripemd128_round(const unsigned char *data, sph_u32 r[5])
{
#if SPH_LITTLE_FAST
#define RIPEMD128_IN(x) sph_dec32le_aligned(data + (4 * (x)))
#else
sph_u32 X_var[16];
int i;
for (i = 0; i < 16; i ++)
X_var[i] = sph_dec32le_aligned(data + 4 * i);
#define RIPEMD128_IN(x) X_var[x]
#endif
RIPEMD128_ROUND_BODY(RIPEMD128_IN, r);
#undef RIPEMD128_IN
}
/* see sph_ripemd.h */
void
sph_ripemd128_init(void *cc)
{
sph_ripemd128_context *sc;
sc = (sph_ripemd128_context*)cc;
memcpy(sc->val, IV, sizeof sc->val);
#if SPH_64
sc->count = 0;
#else
sc->count_high = sc->count_low = 0;
#endif
}
#define RFUN ripemd128_round
#define HASH ripemd128
#define LE32 1
#include "algo/sha3/md_helper.c"
#undef RFUN
#undef HASH
#undef LE32
/* see sph_ripemd.h */
void
sph_ripemd128_close(void *cc, void *dst)
{
ripemd128_close(cc, dst, 4);
// sph_ripemd128_init(cc);
}
/* see sph_ripemd.h */
void
sph_ripemd128_comp(const sph_u32 msg[16], sph_u32 val[4])
{
#define RIPEMD128_IN(x) msg[x]
RIPEMD128_ROUND_BODY(RIPEMD128_IN, val);
#undef RIPEMD128_IN
}
/* ===================================================================== */
/*
* RIPEMD-160.
*/
/*
* Round constants for RIPEMD-160.
*/
#define K11 SPH_C32(0x00000000)
#define K12 SPH_C32(0x5A827999)
#define K13 SPH_C32(0x6ED9EBA1)
#define K14 SPH_C32(0x8F1BBCDC)
#define K15 SPH_C32(0xA953FD4E)
#define K21 SPH_C32(0x50A28BE6)
#define K22 SPH_C32(0x5C4DD124)
#define K23 SPH_C32(0x6D703EF3)
#define K24 SPH_C32(0x7A6D76E9)
#define K25 SPH_C32(0x00000000)
#define RR(a, b, c, d, e, f, s, r, k) do { \
a = SPH_T32(ROTL(SPH_T32(a + f(b, c, d) + r + k), s) + e); \
c = ROTL(c, 10); \
} while (0)
#define ROUND1(a, b, c, d, e, f, s, r, k) \
RR(a ## 1, b ## 1, c ## 1, d ## 1, e ## 1, f, s, r, K1 ## k)
#define ROUND2(a, b, c, d, e, f, s, r, k) \
RR(a ## 2, b ## 2, c ## 2, d ## 2, e ## 2, f, s, r, K2 ## k)
/*
* This macro defines the body for a RIPEMD-160 compression function
* implementation. The "in" parameter should evaluate, when applied to a
* numerical input parameter from 0 to 15, to an expression which yields
* the corresponding input block. The "h" parameter should evaluate to
* an array or pointer expression designating the array of 5 words which
* contains the input and output of the compression function.
*/
#define RIPEMD160_ROUND_BODY(in, h) do { \
sph_u32 A1, B1, C1, D1, E1; \
sph_u32 A2, B2, C2, D2, E2; \
sph_u32 tmp; \
\
A1 = A2 = (h)[0]; \
B1 = B2 = (h)[1]; \
C1 = C2 = (h)[2]; \
D1 = D2 = (h)[3]; \
E1 = E2 = (h)[4]; \
\
ROUND1(A, B, C, D, E, F1, 11, in( 0), 1); \
ROUND1(E, A, B, C, D, F1, 14, in( 1), 1); \
ROUND1(D, E, A, B, C, F1, 15, in( 2), 1); \
ROUND1(C, D, E, A, B, F1, 12, in( 3), 1); \
ROUND1(B, C, D, E, A, F1, 5, in( 4), 1); \
ROUND1(A, B, C, D, E, F1, 8, in( 5), 1); \
ROUND1(E, A, B, C, D, F1, 7, in( 6), 1); \
ROUND1(D, E, A, B, C, F1, 9, in( 7), 1); \
ROUND1(C, D, E, A, B, F1, 11, in( 8), 1); \
ROUND1(B, C, D, E, A, F1, 13, in( 9), 1); \
ROUND1(A, B, C, D, E, F1, 14, in(10), 1); \
ROUND1(E, A, B, C, D, F1, 15, in(11), 1); \
ROUND1(D, E, A, B, C, F1, 6, in(12), 1); \
ROUND1(C, D, E, A, B, F1, 7, in(13), 1); \
ROUND1(B, C, D, E, A, F1, 9, in(14), 1); \
ROUND1(A, B, C, D, E, F1, 8, in(15), 1); \
\
ROUND1(E, A, B, C, D, F2, 7, in( 7), 2); \
ROUND1(D, E, A, B, C, F2, 6, in( 4), 2); \
ROUND1(C, D, E, A, B, F2, 8, in(13), 2); \
ROUND1(B, C, D, E, A, F2, 13, in( 1), 2); \
ROUND1(A, B, C, D, E, F2, 11, in(10), 2); \
ROUND1(E, A, B, C, D, F2, 9, in( 6), 2); \
ROUND1(D, E, A, B, C, F2, 7, in(15), 2); \
ROUND1(C, D, E, A, B, F2, 15, in( 3), 2); \
ROUND1(B, C, D, E, A, F2, 7, in(12), 2); \
ROUND1(A, B, C, D, E, F2, 12, in( 0), 2); \
ROUND1(E, A, B, C, D, F2, 15, in( 9), 2); \
ROUND1(D, E, A, B, C, F2, 9, in( 5), 2); \
ROUND1(C, D, E, A, B, F2, 11, in( 2), 2); \
ROUND1(B, C, D, E, A, F2, 7, in(14), 2); \
ROUND1(A, B, C, D, E, F2, 13, in(11), 2); \
ROUND1(E, A, B, C, D, F2, 12, in( 8), 2); \
\
ROUND1(D, E, A, B, C, F3, 11, in( 3), 3); \
ROUND1(C, D, E, A, B, F3, 13, in(10), 3); \
ROUND1(B, C, D, E, A, F3, 6, in(14), 3); \
ROUND1(A, B, C, D, E, F3, 7, in( 4), 3); \
ROUND1(E, A, B, C, D, F3, 14, in( 9), 3); \
ROUND1(D, E, A, B, C, F3, 9, in(15), 3); \
ROUND1(C, D, E, A, B, F3, 13, in( 8), 3); \
ROUND1(B, C, D, E, A, F3, 15, in( 1), 3); \
ROUND1(A, B, C, D, E, F3, 14, in( 2), 3); \
ROUND1(E, A, B, C, D, F3, 8, in( 7), 3); \
ROUND1(D, E, A, B, C, F3, 13, in( 0), 3); \
ROUND1(C, D, E, A, B, F3, 6, in( 6), 3); \
ROUND1(B, C, D, E, A, F3, 5, in(13), 3); \
ROUND1(A, B, C, D, E, F3, 12, in(11), 3); \
ROUND1(E, A, B, C, D, F3, 7, in( 5), 3); \
ROUND1(D, E, A, B, C, F3, 5, in(12), 3); \
\
ROUND1(C, D, E, A, B, F4, 11, in( 1), 4); \
ROUND1(B, C, D, E, A, F4, 12, in( 9), 4); \
ROUND1(A, B, C, D, E, F4, 14, in(11), 4); \
ROUND1(E, A, B, C, D, F4, 15, in(10), 4); \
ROUND1(D, E, A, B, C, F4, 14, in( 0), 4); \
ROUND1(C, D, E, A, B, F4, 15, in( 8), 4); \
ROUND1(B, C, D, E, A, F4, 9, in(12), 4); \
ROUND1(A, B, C, D, E, F4, 8, in( 4), 4); \
ROUND1(E, A, B, C, D, F4, 9, in(13), 4); \
ROUND1(D, E, A, B, C, F4, 14, in( 3), 4); \
ROUND1(C, D, E, A, B, F4, 5, in( 7), 4); \
ROUND1(B, C, D, E, A, F4, 6, in(15), 4); \
ROUND1(A, B, C, D, E, F4, 8, in(14), 4); \
ROUND1(E, A, B, C, D, F4, 6, in( 5), 4); \
ROUND1(D, E, A, B, C, F4, 5, in( 6), 4); \
ROUND1(C, D, E, A, B, F4, 12, in( 2), 4); \
\
ROUND1(B, C, D, E, A, F5, 9, in( 4), 5); \
ROUND1(A, B, C, D, E, F5, 15, in( 0), 5); \
ROUND1(E, A, B, C, D, F5, 5, in( 5), 5); \
ROUND1(D, E, A, B, C, F5, 11, in( 9), 5); \
ROUND1(C, D, E, A, B, F5, 6, in( 7), 5); \
ROUND1(B, C, D, E, A, F5, 8, in(12), 5); \
ROUND1(A, B, C, D, E, F5, 13, in( 2), 5); \
ROUND1(E, A, B, C, D, F5, 12, in(10), 5); \
ROUND1(D, E, A, B, C, F5, 5, in(14), 5); \
ROUND1(C, D, E, A, B, F5, 12, in( 1), 5); \
ROUND1(B, C, D, E, A, F5, 13, in( 3), 5); \
ROUND1(A, B, C, D, E, F5, 14, in( 8), 5); \
ROUND1(E, A, B, C, D, F5, 11, in(11), 5); \
ROUND1(D, E, A, B, C, F5, 8, in( 6), 5); \
ROUND1(C, D, E, A, B, F5, 5, in(15), 5); \
ROUND1(B, C, D, E, A, F5, 6, in(13), 5); \
\
ROUND2(A, B, C, D, E, F5, 8, in( 5), 1); \
ROUND2(E, A, B, C, D, F5, 9, in(14), 1); \
ROUND2(D, E, A, B, C, F5, 9, in( 7), 1); \
ROUND2(C, D, E, A, B, F5, 11, in( 0), 1); \
ROUND2(B, C, D, E, A, F5, 13, in( 9), 1); \
ROUND2(A, B, C, D, E, F5, 15, in( 2), 1); \
ROUND2(E, A, B, C, D, F5, 15, in(11), 1); \
ROUND2(D, E, A, B, C, F5, 5, in( 4), 1); \
ROUND2(C, D, E, A, B, F5, 7, in(13), 1); \
ROUND2(B, C, D, E, A, F5, 7, in( 6), 1); \
ROUND2(A, B, C, D, E, F5, 8, in(15), 1); \
ROUND2(E, A, B, C, D, F5, 11, in( 8), 1); \
ROUND2(D, E, A, B, C, F5, 14, in( 1), 1); \
ROUND2(C, D, E, A, B, F5, 14, in(10), 1); \
ROUND2(B, C, D, E, A, F5, 12, in( 3), 1); \
ROUND2(A, B, C, D, E, F5, 6, in(12), 1); \
\
ROUND2(E, A, B, C, D, F4, 9, in( 6), 2); \
ROUND2(D, E, A, B, C, F4, 13, in(11), 2); \
ROUND2(C, D, E, A, B, F4, 15, in( 3), 2); \
ROUND2(B, C, D, E, A, F4, 7, in( 7), 2); \
ROUND2(A, B, C, D, E, F4, 12, in( 0), 2); \
ROUND2(E, A, B, C, D, F4, 8, in(13), 2); \
ROUND2(D, E, A, B, C, F4, 9, in( 5), 2); \
ROUND2(C, D, E, A, B, F4, 11, in(10), 2); \
ROUND2(B, C, D, E, A, F4, 7, in(14), 2); \
ROUND2(A, B, C, D, E, F4, 7, in(15), 2); \
ROUND2(E, A, B, C, D, F4, 12, in( 8), 2); \
ROUND2(D, E, A, B, C, F4, 7, in(12), 2); \
ROUND2(C, D, E, A, B, F4, 6, in( 4), 2); \
ROUND2(B, C, D, E, A, F4, 15, in( 9), 2); \
ROUND2(A, B, C, D, E, F4, 13, in( 1), 2); \
ROUND2(E, A, B, C, D, F4, 11, in( 2), 2); \
\
ROUND2(D, E, A, B, C, F3, 9, in(15), 3); \
ROUND2(C, D, E, A, B, F3, 7, in( 5), 3); \
ROUND2(B, C, D, E, A, F3, 15, in( 1), 3); \
ROUND2(A, B, C, D, E, F3, 11, in( 3), 3); \
ROUND2(E, A, B, C, D, F3, 8, in( 7), 3); \
ROUND2(D, E, A, B, C, F3, 6, in(14), 3); \
ROUND2(C, D, E, A, B, F3, 6, in( 6), 3); \
ROUND2(B, C, D, E, A, F3, 14, in( 9), 3); \
ROUND2(A, B, C, D, E, F3, 12, in(11), 3); \
ROUND2(E, A, B, C, D, F3, 13, in( 8), 3); \
ROUND2(D, E, A, B, C, F3, 5, in(12), 3); \
ROUND2(C, D, E, A, B, F3, 14, in( 2), 3); \
ROUND2(B, C, D, E, A, F3, 13, in(10), 3); \
ROUND2(A, B, C, D, E, F3, 13, in( 0), 3); \
ROUND2(E, A, B, C, D, F3, 7, in( 4), 3); \
ROUND2(D, E, A, B, C, F3, 5, in(13), 3); \
\
ROUND2(C, D, E, A, B, F2, 15, in( 8), 4); \
ROUND2(B, C, D, E, A, F2, 5, in( 6), 4); \
ROUND2(A, B, C, D, E, F2, 8, in( 4), 4); \
ROUND2(E, A, B, C, D, F2, 11, in( 1), 4); \
ROUND2(D, E, A, B, C, F2, 14, in( 3), 4); \
ROUND2(C, D, E, A, B, F2, 14, in(11), 4); \
ROUND2(B, C, D, E, A, F2, 6, in(15), 4); \
ROUND2(A, B, C, D, E, F2, 14, in( 0), 4); \
ROUND2(E, A, B, C, D, F2, 6, in( 5), 4); \
ROUND2(D, E, A, B, C, F2, 9, in(12), 4); \
ROUND2(C, D, E, A, B, F2, 12, in( 2), 4); \
ROUND2(B, C, D, E, A, F2, 9, in(13), 4); \
ROUND2(A, B, C, D, E, F2, 12, in( 9), 4); \
ROUND2(E, A, B, C, D, F2, 5, in( 7), 4); \
ROUND2(D, E, A, B, C, F2, 15, in(10), 4); \
ROUND2(C, D, E, A, B, F2, 8, in(14), 4); \
\
ROUND2(B, C, D, E, A, F1, 8, in(12), 5); \
ROUND2(A, B, C, D, E, F1, 5, in(15), 5); \
ROUND2(E, A, B, C, D, F1, 12, in(10), 5); \
ROUND2(D, E, A, B, C, F1, 9, in( 4), 5); \
ROUND2(C, D, E, A, B, F1, 12, in( 1), 5); \
ROUND2(B, C, D, E, A, F1, 5, in( 5), 5); \
ROUND2(A, B, C, D, E, F1, 14, in( 8), 5); \
ROUND2(E, A, B, C, D, F1, 6, in( 7), 5); \
ROUND2(D, E, A, B, C, F1, 8, in( 6), 5); \
ROUND2(C, D, E, A, B, F1, 13, in( 2), 5); \
ROUND2(B, C, D, E, A, F1, 6, in(13), 5); \
ROUND2(A, B, C, D, E, F1, 5, in(14), 5); \
ROUND2(E, A, B, C, D, F1, 15, in( 0), 5); \
ROUND2(D, E, A, B, C, F1, 13, in( 3), 5); \
ROUND2(C, D, E, A, B, F1, 11, in( 9), 5); \
ROUND2(B, C, D, E, A, F1, 11, in(11), 5); \
\
tmp = SPH_T32((h)[1] + C1 + D2); \
(h)[1] = SPH_T32((h)[2] + D1 + E2); \
(h)[2] = SPH_T32((h)[3] + E1 + A2); \
(h)[3] = SPH_T32((h)[4] + A1 + B2); \
(h)[4] = SPH_T32((h)[0] + B1 + C2); \
(h)[0] = tmp; \
} while (0)
/*
* One round of RIPEMD-160. The data must be aligned for 32-bit access.
*/
static void
ripemd160_round(const unsigned char *data, sph_u32 r[5])
{
#if SPH_LITTLE_FAST
#define RIPEMD160_IN(x) sph_dec32le_aligned(data + (4 * (x)))
#else
sph_u32 X_var[16];
int i;
for (i = 0; i < 16; i ++)
X_var[i] = sph_dec32le_aligned(data + 4 * i);
#define RIPEMD160_IN(x) X_var[x]
#endif
RIPEMD160_ROUND_BODY(RIPEMD160_IN, r);
#undef RIPEMD160_IN
}
/* see sph_ripemd.h */
void
sph_ripemd160_init(void *cc)
{
sph_ripemd160_context *sc;
sc = (sph_ripemd160_context*)cc;
memcpy(sc->val, IV, sizeof sc->val);
#if SPH_64
sc->count = 0;
#else
sc->count_high = sc->count_low = 0;
#endif
}
#define RFUN ripemd160_round
#define HASH ripemd160
#define LE32 1
#include "algo/sha3/md_helper.c"
#undef RFUN
#undef HASH
#undef LE32
/* see sph_ripemd.h */
void
sph_ripemd160_close(void *cc, void *dst)
{
ripemd160_close(cc, dst, 5);
// sph_ripemd160_init(cc);
}
/* see sph_ripemd.h */
void
sph_ripemd160_comp(const sph_u32 msg[16], sph_u32 val[5])
{
#define RIPEMD160_IN(x) msg[x]
RIPEMD160_ROUND_BODY(RIPEMD160_IN, val);
#undef RIPEMD160_IN
}

274
algo/ripemd/sph_ripemd.h Normal file
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@@ -0,0 +1,274 @@
/* $Id: sph_ripemd.h 216 2010-06-08 09:46:57Z tp $ */
/**
* RIPEMD, RIPEMD-128 and RIPEMD-160 interface.
*
* RIPEMD was first described in: Research and Development in Advanced
* Communication Technologies in Europe, "RIPE Integrity Primitives:
* Final Report of RACE Integrity Primitives Evaluation (R1040)", RACE,
* June 1992.
*
* A new, strengthened version, dubbed RIPEMD-160, was published in: H.
* Dobbertin, A. Bosselaers, and B. Preneel, "RIPEMD-160, a strengthened
* version of RIPEMD", Fast Software Encryption - FSE'96, LNCS 1039,
* Springer (1996), pp. 71--82.
*
* This article describes both RIPEMD-160, with a 160-bit output, and a
* reduced version called RIPEMD-128, which has a 128-bit output. RIPEMD-128
* was meant as a "drop-in" replacement for any hash function with 128-bit
* output, especially the original RIPEMD.
*
* @warning Collisions, and an efficient method to build other collisions,
* have been published for the original RIPEMD, which is thus considered as
* cryptographically broken. It is also very rarely encountered, and there
* seems to exist no free description or implementation of RIPEMD (except
* the sphlib code, of course). As of january 2007, RIPEMD-128 and RIPEMD-160
* seem as secure as their output length allows.
*
* ==========================(LICENSE BEGIN)============================
*
* Copyright (c) 2007-2010 Projet RNRT SAPHIR
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* ===========================(LICENSE END)=============================
*
* @file sph_ripemd.h
* @author Thomas Pornin <thomas.pornin@cryptolog.com>
*/
#ifndef SPH_RIPEMD_H__
#define SPH_RIPEMD_H__
#include <stddef.h>
#include "algo/sha3/sph_types.h"
/**
* Output size (in bits) for RIPEMD.
*/
#define SPH_SIZE_ripemd 128
/**
* Output size (in bits) for RIPEMD-128.
*/
#define SPH_SIZE_ripemd128 128
/**
* Output size (in bits) for RIPEMD-160.
*/
#define SPH_SIZE_ripemd160 160
/**
* This structure is a context for RIPEMD computations: it contains the
* intermediate values and some data from the last entered block. Once
* a RIPEMD computation has been performed, the context can be reused for
* another computation.
*
* The contents of this structure are private. A running RIPEMD computation
* can be cloned by copying the context (e.g. with a simple
* <code>memcpy()</code>).
*/
typedef struct {
#ifndef DOXYGEN_IGNORE
unsigned char buf[64]; /* first field, for alignment */
sph_u32 val[4];
#if SPH_64
sph_u64 count;
#else
sph_u32 count_high, count_low;
#endif
#endif
} sph_ripemd_context;
/**
* Initialize a RIPEMD context. This process performs no memory allocation.
*
* @param cc the RIPEMD context (pointer to
* a <code>sph_ripemd_context</code>)
*/
void sph_ripemd_init(void *cc);
/**
* Process some data bytes. It is acceptable that <code>len</code> is zero
* (in which case this function does nothing).
*
* @param cc the RIPEMD context
* @param data the input data
* @param len the input data length (in bytes)
*/
void sph_ripemd(void *cc, const void *data, size_t len);
/**
* Terminate the current RIPEMD computation and output the result into the
* provided buffer. The destination buffer must be wide enough to
* accomodate the result (16 bytes). The context is automatically
* reinitialized.
*
* @param cc the RIPEMD context
* @param dst the destination buffer
*/
void sph_ripemd_close(void *cc, void *dst);
/**
* Apply the RIPEMD compression function on the provided data. The
* <code>msg</code> parameter contains the 16 32-bit input blocks,
* as numerical values (hence after the little-endian decoding). The
* <code>val</code> parameter contains the 5 32-bit input blocks for
* the compression function; the output is written in place in this
* array.
*
* @param msg the message block (16 values)
* @param val the function 128-bit input and output
*/
void sph_ripemd_comp(const sph_u32 msg[16], sph_u32 val[4]);
/* ===================================================================== */
/**
* This structure is a context for RIPEMD-128 computations: it contains the
* intermediate values and some data from the last entered block. Once
* a RIPEMD-128 computation has been performed, the context can be reused for
* another computation.
*
* The contents of this structure are private. A running RIPEMD-128 computation
* can be cloned by copying the context (e.g. with a simple
* <code>memcpy()</code>).
*/
typedef struct {
#ifndef DOXYGEN_IGNORE
unsigned char buf[64]; /* first field, for alignment */
sph_u32 val[4];
#if SPH_64
sph_u64 count;
#else
sph_u32 count_high, count_low;
#endif
#endif
} sph_ripemd128_context;
/**
* Initialize a RIPEMD-128 context. This process performs no memory allocation.
*
* @param cc the RIPEMD-128 context (pointer to
* a <code>sph_ripemd128_context</code>)
*/
void sph_ripemd128_init(void *cc);
/**
* Process some data bytes. It is acceptable that <code>len</code> is zero
* (in which case this function does nothing).
*
* @param cc the RIPEMD-128 context
* @param data the input data
* @param len the input data length (in bytes)
*/
void sph_ripemd128(void *cc, const void *data, size_t len);
/**
* Terminate the current RIPEMD-128 computation and output the result into the
* provided buffer. The destination buffer must be wide enough to
* accomodate the result (16 bytes). The context is automatically
* reinitialized.
*
* @param cc the RIPEMD-128 context
* @param dst the destination buffer
*/
void sph_ripemd128_close(void *cc, void *dst);
/**
* Apply the RIPEMD-128 compression function on the provided data. The
* <code>msg</code> parameter contains the 16 32-bit input blocks,
* as numerical values (hence after the little-endian decoding). The
* <code>val</code> parameter contains the 5 32-bit input blocks for
* the compression function; the output is written in place in this
* array.
*
* @param msg the message block (16 values)
* @param val the function 128-bit input and output
*/
void sph_ripemd128_comp(const sph_u32 msg[16], sph_u32 val[4]);
/* ===================================================================== */
/**
* This structure is a context for RIPEMD-160 computations: it contains the
* intermediate values and some data from the last entered block. Once
* a RIPEMD-160 computation has been performed, the context can be reused for
* another computation.
*
* The contents of this structure are private. A running RIPEMD-160 computation
* can be cloned by copying the context (e.g. with a simple
* <code>memcpy()</code>).
*/
typedef struct {
#ifndef DOXYGEN_IGNORE
unsigned char buf[64]; /* first field, for alignment */
sph_u32 val[5];
#if SPH_64
sph_u64 count;
#else
sph_u32 count_high, count_low;
#endif
#endif
} sph_ripemd160_context;
/**
* Initialize a RIPEMD-160 context. This process performs no memory allocation.
*
* @param cc the RIPEMD-160 context (pointer to
* a <code>sph_ripemd160_context</code>)
*/
void sph_ripemd160_init(void *cc);
/**
* Process some data bytes. It is acceptable that <code>len</code> is zero
* (in which case this function does nothing).
*
* @param cc the RIPEMD-160 context
* @param data the input data
* @param len the input data length (in bytes)
*/
void sph_ripemd160(void *cc, const void *data, size_t len);
/**
* Terminate the current RIPEMD-160 computation and output the result into the
* provided buffer. The destination buffer must be wide enough to
* accomodate the result (20 bytes). The context is automatically
* reinitialized.
*
* @param cc the RIPEMD-160 context
* @param dst the destination buffer
*/
void sph_ripemd160_close(void *cc, void *dst);
/**
* Apply the RIPEMD-160 compression function on the provided data. The
* <code>msg</code> parameter contains the 16 32-bit input blocks,
* as numerical values (hence after the little-endian decoding). The
* <code>val</code> parameter contains the 5 32-bit input blocks for
* the compression function; the output is written in place in this
* array.
*
* @param msg the message block (16 values)
* @param val the function 160-bit input and output
*/
void sph_ripemd160_comp(const sph_u32 msg[16], sph_u32 val[5]);
#endif