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148 lines
4.4 KiB
C
148 lines
4.4 KiB
C
/*
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* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <stdio.h>
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#include <openssl/opensslv.h>
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#include "md4_locl.h"
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/*
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* Implemented from RFC1186 The MD4 Message-Digest Algorithm
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*/
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#define INIT_DATA_A (unsigned long)0x67452301L
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#define INIT_DATA_B (unsigned long)0xefcdab89L
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#define INIT_DATA_C (unsigned long)0x98badcfeL
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#define INIT_DATA_D (unsigned long)0x10325476L
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int MD4_Init(MD4_CTX *c)
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{
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memset(c, 0, sizeof(*c));
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c->A = INIT_DATA_A;
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c->B = INIT_DATA_B;
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c->C = INIT_DATA_C;
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c->D = INIT_DATA_D;
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return 1;
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}
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#ifndef md4_block_data_order
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# ifdef X
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# undef X
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# endif
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void md4_block_data_order(MD4_CTX *c, const void *data_, size_t num)
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{
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const unsigned char *data = data_;
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register unsigned MD32_REG_T A, B, C, D, l;
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# ifndef MD32_XARRAY
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/* See comment in crypto/sha/sha_locl.h for details. */
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unsigned MD32_REG_T XX0, XX1, XX2, XX3, XX4, XX5, XX6, XX7,
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XX8, XX9, XX10, XX11, XX12, XX13, XX14, XX15;
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# define X(i) XX##i
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# else
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MD4_LONG XX[MD4_LBLOCK];
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# define X(i) XX[i]
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# endif
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A = c->A;
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B = c->B;
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C = c->C;
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D = c->D;
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for (; num--;) {
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(void)HOST_c2l(data, l);
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X(0) = l;
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(void)HOST_c2l(data, l);
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X(1) = l;
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/* Round 0 */
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R0(A, B, C, D, X(0), 3, 0);
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(void)HOST_c2l(data, l);
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X(2) = l;
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R0(D, A, B, C, X(1), 7, 0);
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(void)HOST_c2l(data, l);
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X(3) = l;
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R0(C, D, A, B, X(2), 11, 0);
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(void)HOST_c2l(data, l);
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X(4) = l;
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R0(B, C, D, A, X(3), 19, 0);
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(void)HOST_c2l(data, l);
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X(5) = l;
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R0(A, B, C, D, X(4), 3, 0);
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(void)HOST_c2l(data, l);
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X(6) = l;
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R0(D, A, B, C, X(5), 7, 0);
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(void)HOST_c2l(data, l);
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X(7) = l;
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R0(C, D, A, B, X(6), 11, 0);
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(void)HOST_c2l(data, l);
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X(8) = l;
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R0(B, C, D, A, X(7), 19, 0);
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(void)HOST_c2l(data, l);
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X(9) = l;
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R0(A, B, C, D, X(8), 3, 0);
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(void)HOST_c2l(data, l);
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X(10) = l;
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R0(D, A, B, C, X(9), 7, 0);
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(void)HOST_c2l(data, l);
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X(11) = l;
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R0(C, D, A, B, X(10), 11, 0);
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(void)HOST_c2l(data, l);
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X(12) = l;
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R0(B, C, D, A, X(11), 19, 0);
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(void)HOST_c2l(data, l);
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X(13) = l;
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R0(A, B, C, D, X(12), 3, 0);
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(void)HOST_c2l(data, l);
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X(14) = l;
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R0(D, A, B, C, X(13), 7, 0);
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(void)HOST_c2l(data, l);
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X(15) = l;
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R0(C, D, A, B, X(14), 11, 0);
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R0(B, C, D, A, X(15), 19, 0);
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/* Round 1 */
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R1(A, B, C, D, X(0), 3, 0x5A827999L);
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R1(D, A, B, C, X(4), 5, 0x5A827999L);
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R1(C, D, A, B, X(8), 9, 0x5A827999L);
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R1(B, C, D, A, X(12), 13, 0x5A827999L);
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R1(A, B, C, D, X(1), 3, 0x5A827999L);
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R1(D, A, B, C, X(5), 5, 0x5A827999L);
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R1(C, D, A, B, X(9), 9, 0x5A827999L);
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R1(B, C, D, A, X(13), 13, 0x5A827999L);
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R1(A, B, C, D, X(2), 3, 0x5A827999L);
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R1(D, A, B, C, X(6), 5, 0x5A827999L);
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R1(C, D, A, B, X(10), 9, 0x5A827999L);
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R1(B, C, D, A, X(14), 13, 0x5A827999L);
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R1(A, B, C, D, X(3), 3, 0x5A827999L);
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R1(D, A, B, C, X(7), 5, 0x5A827999L);
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R1(C, D, A, B, X(11), 9, 0x5A827999L);
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R1(B, C, D, A, X(15), 13, 0x5A827999L);
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/* Round 2 */
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R2(A, B, C, D, X(0), 3, 0x6ED9EBA1L);
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R2(D, A, B, C, X(8), 9, 0x6ED9EBA1L);
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R2(C, D, A, B, X(4), 11, 0x6ED9EBA1L);
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R2(B, C, D, A, X(12), 15, 0x6ED9EBA1L);
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R2(A, B, C, D, X(2), 3, 0x6ED9EBA1L);
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R2(D, A, B, C, X(10), 9, 0x6ED9EBA1L);
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R2(C, D, A, B, X(6), 11, 0x6ED9EBA1L);
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R2(B, C, D, A, X(14), 15, 0x6ED9EBA1L);
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R2(A, B, C, D, X(1), 3, 0x6ED9EBA1L);
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R2(D, A, B, C, X(9), 9, 0x6ED9EBA1L);
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R2(C, D, A, B, X(5), 11, 0x6ED9EBA1L);
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R2(B, C, D, A, X(13), 15, 0x6ED9EBA1L);
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R2(A, B, C, D, X(3), 3, 0x6ED9EBA1L);
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R2(D, A, B, C, X(11), 9, 0x6ED9EBA1L);
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R2(C, D, A, B, X(7), 11, 0x6ED9EBA1L);
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R2(B, C, D, A, X(15), 15, 0x6ED9EBA1L);
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A = c->A += A;
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B = c->B += B;
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C = c->C += C;
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D = c->D += D;
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}
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}
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#endif
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