300 lines
10 KiB
C
300 lines
10 KiB
C
/*
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* Copyright (C) 2006-2009 Vincent Hanquez <vincent@snarc.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "cryptonite_ripemd.h"
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#include "cryptonite_bitfn.h"
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#include <string.h>
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void cryptonite_ripemd160_init(struct ripemd160_ctx *ctx)
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{
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memset(ctx, 0, sizeof(*ctx));
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ctx->h[0] = 0x67452301;
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ctx->h[1] = 0xefcdab89;
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ctx->h[2] = 0x98badcfe;
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ctx->h[3] = 0x10325476;
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ctx->h[4] = 0xc3d2e1f0;
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}
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#define K1 0x00000000
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#define K2 0x5a827999
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#define K3 0x6ed9eba1
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#define K4 0x8f1bbcdc
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#define K5 0xa953fd4e
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#define K6 0x50a28be6
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#define K7 0x5c4dd124
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#define K8 0x6d703ef3
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#define K9 0x7a6d76e9
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#define f1(x, y, z) (x ^ y ^ z)
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#define f2(x, y, z) (z ^ (x & (y ^ z)))
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#define f3(x, y, z) ((x | ~y) ^ z)
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#define f4(x, y, z) (y ^ (z & (x ^ y)))
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#define f5(x, y, z) (x ^ (y | ~z))
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#define R(a, b, c, d, e, f, k, i, s) \
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a += f(b, c, d) + w[i] + k; a = rol32(a, s) + e; c = rol32(c, 10)
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static void ripemd160_do_chunk(struct ripemd160_ctx *ctx, uint32_t *buf)
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{
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uint32_t a1, b1, c1, d1, e1, a2, b2, c2, d2, e2;
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#ifdef ARCH_IS_BIG_ENDIAN
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uint32_t w[16];
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cpu_to_le32_array(w, buf, 16);
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#else
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uint32_t *w = buf;
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#endif
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a1 = ctx->h[0]; b1 = ctx->h[1]; c1 = ctx->h[2]; d1 = ctx->h[3]; e1 = ctx->h[4];
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a2 = ctx->h[0]; b2 = ctx->h[1]; c2 = ctx->h[2]; d2 = ctx->h[3]; e2 = ctx->h[4];
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/* 5 passes on first state copy */
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R(a1, b1, c1, d1, e1, f1, K1, 0, 11);
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R(e1, a1, b1, c1, d1, f1, K1, 1, 14);
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R(d1, e1, a1, b1, c1, f1, K1, 2, 15);
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R(c1, d1, e1, a1, b1, f1, K1, 3, 12);
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R(b1, c1, d1, e1, a1, f1, K1, 4, 5);
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R(a1, b1, c1, d1, e1, f1, K1, 5, 8);
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R(e1, a1, b1, c1, d1, f1, K1, 6, 7);
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R(d1, e1, a1, b1, c1, f1, K1, 7, 9);
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R(c1, d1, e1, a1, b1, f1, K1, 8, 11);
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R(b1, c1, d1, e1, a1, f1, K1, 9, 13);
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R(a1, b1, c1, d1, e1, f1, K1, 10, 14);
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R(e1, a1, b1, c1, d1, f1, K1, 11, 15);
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R(d1, e1, a1, b1, c1, f1, K1, 12, 6);
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R(c1, d1, e1, a1, b1, f1, K1, 13, 7);
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R(b1, c1, d1, e1, a1, f1, K1, 14, 9);
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R(a1, b1, c1, d1, e1, f1, K1, 15, 8);
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R(e1, a1, b1, c1, d1, f2, K2, 7, 7);
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R(d1, e1, a1, b1, c1, f2, K2, 4, 6);
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R(c1, d1, e1, a1, b1, f2, K2, 13, 8);
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R(b1, c1, d1, e1, a1, f2, K2, 1, 13);
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R(a1, b1, c1, d1, e1, f2, K2, 10, 11);
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R(e1, a1, b1, c1, d1, f2, K2, 6, 9);
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R(d1, e1, a1, b1, c1, f2, K2, 15, 7);
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R(c1, d1, e1, a1, b1, f2, K2, 3, 15);
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R(b1, c1, d1, e1, a1, f2, K2, 12, 7);
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R(a1, b1, c1, d1, e1, f2, K2, 0, 12);
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R(e1, a1, b1, c1, d1, f2, K2, 9, 15);
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R(d1, e1, a1, b1, c1, f2, K2, 5, 9);
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R(c1, d1, e1, a1, b1, f2, K2, 2, 11);
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R(b1, c1, d1, e1, a1, f2, K2, 14, 7);
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R(a1, b1, c1, d1, e1, f2, K2, 11, 13);
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R(e1, a1, b1, c1, d1, f2, K2, 8, 12);
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R(d1, e1, a1, b1, c1, f3, K3, 3, 11);
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R(c1, d1, e1, a1, b1, f3, K3, 10, 13);
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R(b1, c1, d1, e1, a1, f3, K3, 14, 6);
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R(a1, b1, c1, d1, e1, f3, K3, 4, 7);
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R(e1, a1, b1, c1, d1, f3, K3, 9, 14);
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R(d1, e1, a1, b1, c1, f3, K3, 15, 9);
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R(c1, d1, e1, a1, b1, f3, K3, 8, 13);
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R(b1, c1, d1, e1, a1, f3, K3, 1, 15);
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R(a1, b1, c1, d1, e1, f3, K3, 2, 14);
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R(e1, a1, b1, c1, d1, f3, K3, 7, 8);
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R(d1, e1, a1, b1, c1, f3, K3, 0, 13);
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R(c1, d1, e1, a1, b1, f3, K3, 6, 6);
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R(b1, c1, d1, e1, a1, f3, K3, 13, 5);
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R(a1, b1, c1, d1, e1, f3, K3, 11, 12);
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R(e1, a1, b1, c1, d1, f3, K3, 5, 7);
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R(d1, e1, a1, b1, c1, f3, K3, 12, 5);
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R(c1, d1, e1, a1, b1, f4, K4, 1, 11);
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R(b1, c1, d1, e1, a1, f4, K4, 9, 12);
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R(a1, b1, c1, d1, e1, f4, K4, 11, 14);
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R(e1, a1, b1, c1, d1, f4, K4, 10, 15);
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R(d1, e1, a1, b1, c1, f4, K4, 0, 14);
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R(c1, d1, e1, a1, b1, f4, K4, 8, 15);
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R(b1, c1, d1, e1, a1, f4, K4, 12, 9);
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R(a1, b1, c1, d1, e1, f4, K4, 4, 8);
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R(e1, a1, b1, c1, d1, f4, K4, 13, 9);
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R(d1, e1, a1, b1, c1, f4, K4, 3, 14);
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R(c1, d1, e1, a1, b1, f4, K4, 7, 5);
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R(b1, c1, d1, e1, a1, f4, K4, 15, 6);
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R(a1, b1, c1, d1, e1, f4, K4, 14, 8);
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R(e1, a1, b1, c1, d1, f4, K4, 5, 6);
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R(d1, e1, a1, b1, c1, f4, K4, 6, 5);
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R(c1, d1, e1, a1, b1, f4, K4, 2, 12);
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R(b1, c1, d1, e1, a1, f5, K5, 4, 9);
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R(a1, b1, c1, d1, e1, f5, K5, 0, 15);
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R(e1, a1, b1, c1, d1, f5, K5, 5, 5);
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R(d1, e1, a1, b1, c1, f5, K5, 9, 11);
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R(c1, d1, e1, a1, b1, f5, K5, 7, 6);
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R(b1, c1, d1, e1, a1, f5, K5, 12, 8);
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R(a1, b1, c1, d1, e1, f5, K5, 2, 13);
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R(e1, a1, b1, c1, d1, f5, K5, 10, 12);
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R(d1, e1, a1, b1, c1, f5, K5, 14, 5);
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R(c1, d1, e1, a1, b1, f5, K5, 1, 12);
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R(b1, c1, d1, e1, a1, f5, K5, 3, 13);
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R(a1, b1, c1, d1, e1, f5, K5, 8, 14);
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R(e1, a1, b1, c1, d1, f5, K5, 11, 11);
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R(d1, e1, a1, b1, c1, f5, K5, 6, 8);
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R(c1, d1, e1, a1, b1, f5, K5, 15, 5);
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R(b1, c1, d1, e1, a1, f5, K5, 13, 6);
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/* 5 passes on second state copy */
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R(a2, b2, c2, d2, e2, f5, K6, 5, 8);
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R(e2, a2, b2, c2, d2, f5, K6, 14, 9);
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R(d2, e2, a2, b2, c2, f5, K6, 7, 9);
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R(c2, d2, e2, a2, b2, f5, K6, 0, 11);
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R(b2, c2, d2, e2, a2, f5, K6, 9, 13);
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R(a2, b2, c2, d2, e2, f5, K6, 2, 15);
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R(e2, a2, b2, c2, d2, f5, K6, 11, 15);
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R(d2, e2, a2, b2, c2, f5, K6, 4, 5);
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R(c2, d2, e2, a2, b2, f5, K6, 13, 7);
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R(b2, c2, d2, e2, a2, f5, K6, 6, 7);
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R(a2, b2, c2, d2, e2, f5, K6, 15, 8);
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R(e2, a2, b2, c2, d2, f5, K6, 8, 11);
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R(d2, e2, a2, b2, c2, f5, K6, 1, 14);
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R(c2, d2, e2, a2, b2, f5, K6, 10, 14);
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R(b2, c2, d2, e2, a2, f5, K6, 3, 12);
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R(a2, b2, c2, d2, e2, f5, K6, 12, 6);
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R(e2, a2, b2, c2, d2, f4, K7, 6, 9);
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R(d2, e2, a2, b2, c2, f4, K7, 11, 13);
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R(c2, d2, e2, a2, b2, f4, K7, 3, 15);
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R(b2, c2, d2, e2, a2, f4, K7, 7, 7);
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R(a2, b2, c2, d2, e2, f4, K7, 0, 12);
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R(e2, a2, b2, c2, d2, f4, K7, 13, 8);
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R(d2, e2, a2, b2, c2, f4, K7, 5, 9);
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R(c2, d2, e2, a2, b2, f4, K7, 10, 11);
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R(b2, c2, d2, e2, a2, f4, K7, 14, 7);
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R(a2, b2, c2, d2, e2, f4, K7, 15, 7);
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R(e2, a2, b2, c2, d2, f4, K7, 8, 12);
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R(d2, e2, a2, b2, c2, f4, K7, 12, 7);
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R(c2, d2, e2, a2, b2, f4, K7, 4, 6);
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R(b2, c2, d2, e2, a2, f4, K7, 9, 15);
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R(a2, b2, c2, d2, e2, f4, K7, 1, 13);
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R(e2, a2, b2, c2, d2, f4, K7, 2, 11);
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R(d2, e2, a2, b2, c2, f3, K8, 15, 9);
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R(c2, d2, e2, a2, b2, f3, K8, 5, 7);
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R(b2, c2, d2, e2, a2, f3, K8, 1, 15);
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R(a2, b2, c2, d2, e2, f3, K8, 3, 11);
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R(e2, a2, b2, c2, d2, f3, K8, 7, 8);
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R(d2, e2, a2, b2, c2, f3, K8, 14, 6);
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R(c2, d2, e2, a2, b2, f3, K8, 6, 6);
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R(b2, c2, d2, e2, a2, f3, K8, 9, 14);
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R(a2, b2, c2, d2, e2, f3, K8, 11, 12);
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R(e2, a2, b2, c2, d2, f3, K8, 8, 13);
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R(d2, e2, a2, b2, c2, f3, K8, 12, 5);
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R(c2, d2, e2, a2, b2, f3, K8, 2, 14);
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R(b2, c2, d2, e2, a2, f3, K8, 10, 13);
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R(a2, b2, c2, d2, e2, f3, K8, 0, 13);
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R(e2, a2, b2, c2, d2, f3, K8, 4, 7);
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R(d2, e2, a2, b2, c2, f3, K8, 13, 5);
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R(c2, d2, e2, a2, b2, f2, K9, 8, 15);
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R(b2, c2, d2, e2, a2, f2, K9, 6, 5);
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R(a2, b2, c2, d2, e2, f2, K9, 4, 8);
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R(e2, a2, b2, c2, d2, f2, K9, 1, 11);
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R(d2, e2, a2, b2, c2, f2, K9, 3, 14);
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R(c2, d2, e2, a2, b2, f2, K9, 11, 14);
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R(b2, c2, d2, e2, a2, f2, K9, 15, 6);
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R(a2, b2, c2, d2, e2, f2, K9, 0, 14);
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R(e2, a2, b2, c2, d2, f2, K9, 5, 6);
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R(d2, e2, a2, b2, c2, f2, K9, 12, 9);
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R(c2, d2, e2, a2, b2, f2, K9, 2, 12);
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R(b2, c2, d2, e2, a2, f2, K9, 13, 9);
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R(a2, b2, c2, d2, e2, f2, K9, 9, 12);
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R(e2, a2, b2, c2, d2, f2, K9, 7, 5);
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R(d2, e2, a2, b2, c2, f2, K9, 10, 15);
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R(c2, d2, e2, a2, b2, f2, K9, 14, 8);
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R(b2, c2, d2, e2, a2, f1, K1, 12, 8);
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R(a2, b2, c2, d2, e2, f1, K1, 15, 5);
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R(e2, a2, b2, c2, d2, f1, K1, 10, 12);
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R(d2, e2, a2, b2, c2, f1, K1, 4, 9);
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R(c2, d2, e2, a2, b2, f1, K1, 1, 12);
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R(b2, c2, d2, e2, a2, f1, K1, 5, 5);
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R(a2, b2, c2, d2, e2, f1, K1, 8, 14);
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R(e2, a2, b2, c2, d2, f1, K1, 7, 6);
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R(d2, e2, a2, b2, c2, f1, K1, 6, 8);
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R(c2, d2, e2, a2, b2, f1, K1, 2, 13);
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R(b2, c2, d2, e2, a2, f1, K1, 13, 6);
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R(a2, b2, c2, d2, e2, f1, K1, 14, 5);
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R(e2, a2, b2, c2, d2, f1, K1, 0, 15);
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R(d2, e2, a2, b2, c2, f1, K1, 3, 13);
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R(c2, d2, e2, a2, b2, f1, K1, 9, 11);
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R(b2, c2, d2, e2, a2, f1, K1, 11, 11);
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d2 += c1 + ctx->h[1];
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ctx->h[1] = ctx->h[2] + d1 + e2;
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ctx->h[2] = ctx->h[3] + e1 + a2;
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ctx->h[3] = ctx->h[4] + a1 + b2;
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ctx->h[4] = ctx->h[0] + b1 + c2;
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ctx->h[0] = d2;
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}
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void cryptonite_ripemd160_update(struct ripemd160_ctx *ctx, const uint8_t *data, uint32_t len)
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{
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uint32_t index, to_fill;
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index = (uint32_t) (ctx->sz & 0x3f);
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to_fill = 64 - index;
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ctx->sz += len;
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if (index && len >= to_fill) {
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memcpy(ctx->buf + index, data, to_fill);
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ripemd160_do_chunk(ctx, (uint32_t *) ctx->buf);
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len -= to_fill;
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data += to_fill;
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index = 0;
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}
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for (; len >= 64; len -= 64, data += 64)
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ripemd160_do_chunk(ctx, (uint32_t *) data);
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if (len)
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memcpy(ctx->buf + index, data, len);
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}
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void cryptonite_ripemd160_finalize(struct ripemd160_ctx *ctx, uint8_t *out)
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{
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static uint8_t padding[64] = { 0x80, };
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uint64_t bits;
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uint32_t index, padlen;
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uint32_t *p = (uint32_t *) out;
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/* add padding and update data with it */
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bits = cpu_to_le64(ctx->sz << 3);
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/* pad out to 56 */
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index = (uint32_t) (ctx->sz & 0x3f);
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padlen = (index < 56) ? (56 - index) : ((64 + 56) - index);
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cryptonite_ripemd160_update(ctx, padding, padlen);
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/* append length */
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cryptonite_ripemd160_update(ctx, (uint8_t *) &bits, sizeof(bits));
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/* output digest */
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p[0] = cpu_to_le32(ctx->h[0]);
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p[1] = cpu_to_le32(ctx->h[1]);
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p[2] = cpu_to_le32(ctx->h[2]);
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p[3] = cpu_to_le32(ctx->h[3]);
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p[4] = cpu_to_le32(ctx->h[4]);
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}
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