X-Git-Url: https://git.openssl.org/gitweb/?a=blobdiff_plain;f=crypto%2Fmd2%2Fmd2_dgst.c;h=faa9393f2e46f5cdf4c89642015b6d1a7511d333;hb=bdd92f4d9bce6c62e553f89a2556c6881fc6d5dd;hp=1d5e261cdfe9076f1e7d2d3b366541cb125587f1;hpb=b4cadc6e1343c01b06613053a90ed2ee85e65090;p=openssl.git diff --git a/crypto/md2/md2_dgst.c b/crypto/md2/md2_dgst.c index 1d5e261cdf..faa9393f2e 100644 --- a/crypto/md2/md2_dgst.c +++ b/crypto/md2/md2_dgst.c @@ -1,236 +1,173 @@ -/* crypto/md2/md2_dgst.c */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. +/* + * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. * - * This package is an SSL implementation written - * by Eric Young (eay@cryptsoft.com). - * The implementation was written so as to conform with Netscapes SSL. - * - * This library is free for commercial and non-commercial use as long as - * the following conditions are aheared to. The following conditions - * apply to all code found in this distribution, be it the RC4, RSA, - * lhash, DES, etc., code; not just the SSL code. The SSL documentation - * included with this distribution is covered by the same copyright terms - * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * If this package is used in a product, Eric Young should be given attribution - * as the author of the parts of the library used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * "This product includes cryptographic software written by - * Eric Young (eay@cryptsoft.com)" - * The word 'cryptographic' can be left out if the rouines from the library - * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from - * the apps directory (application code) you must include an acknowledgement: - * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * The licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html */ #include #include #include -#include "md2.h" -#include "opensslv.h" +#include +#include +#include -char *MD2_version="MD2" OPENSSL_VERSION_PTEXT; - -/* Implemented from RFC1319 The MD2 Message-Digest Algorithm +/* + * Implemented from RFC1319 The MD2 Message-Digest Algorithm */ -#define UCHAR unsigned char - -#ifndef NOPROTO -static void md2_block(MD2_CTX *c, unsigned char *d); -#else -static void md2_block(); -#endif - -/* The magic S table - I have converted it to hex since it is - * basicaly just a random byte string. */ -static MD2_INT S[256]={ - 0x29, 0x2E, 0x43, 0xC9, 0xA2, 0xD8, 0x7C, 0x01, - 0x3D, 0x36, 0x54, 0xA1, 0xEC, 0xF0, 0x06, 0x13, - 0x62, 0xA7, 0x05, 0xF3, 0xC0, 0xC7, 0x73, 0x8C, - 0x98, 0x93, 0x2B, 0xD9, 0xBC, 0x4C, 0x82, 0xCA, - 0x1E, 0x9B, 0x57, 0x3C, 0xFD, 0xD4, 0xE0, 0x16, - 0x67, 0x42, 0x6F, 0x18, 0x8A, 0x17, 0xE5, 0x12, - 0xBE, 0x4E, 0xC4, 0xD6, 0xDA, 0x9E, 0xDE, 0x49, - 0xA0, 0xFB, 0xF5, 0x8E, 0xBB, 0x2F, 0xEE, 0x7A, - 0xA9, 0x68, 0x79, 0x91, 0x15, 0xB2, 0x07, 0x3F, - 0x94, 0xC2, 0x10, 0x89, 0x0B, 0x22, 0x5F, 0x21, - 0x80, 0x7F, 0x5D, 0x9A, 0x5A, 0x90, 0x32, 0x27, - 0x35, 0x3E, 0xCC, 0xE7, 0xBF, 0xF7, 0x97, 0x03, - 0xFF, 0x19, 0x30, 0xB3, 0x48, 0xA5, 0xB5, 0xD1, - 0xD7, 0x5E, 0x92, 0x2A, 0xAC, 0x56, 0xAA, 0xC6, - 0x4F, 0xB8, 0x38, 0xD2, 0x96, 0xA4, 0x7D, 0xB6, - 0x76, 0xFC, 0x6B, 0xE2, 0x9C, 0x74, 0x04, 0xF1, - 0x45, 0x9D, 0x70, 0x59, 0x64, 0x71, 0x87, 0x20, - 0x86, 0x5B, 0xCF, 0x65, 0xE6, 0x2D, 0xA8, 0x02, - 0x1B, 0x60, 0x25, 0xAD, 0xAE, 0xB0, 0xB9, 0xF6, - 0x1C, 0x46, 0x61, 0x69, 0x34, 0x40, 0x7E, 0x0F, - 0x55, 0x47, 0xA3, 0x23, 0xDD, 0x51, 0xAF, 0x3A, - 0xC3, 0x5C, 0xF9, 0xCE, 0xBA, 0xC5, 0xEA, 0x26, - 0x2C, 0x53, 0x0D, 0x6E, 0x85, 0x28, 0x84, 0x09, - 0xD3, 0xDF, 0xCD, 0xF4, 0x41, 0x81, 0x4D, 0x52, - 0x6A, 0xDC, 0x37, 0xC8, 0x6C, 0xC1, 0xAB, 0xFA, - 0x24, 0xE1, 0x7B, 0x08, 0x0C, 0xBD, 0xB1, 0x4A, - 0x78, 0x88, 0x95, 0x8B, 0xE3, 0x63, 0xE8, 0x6D, - 0xE9, 0xCB, 0xD5, 0xFE, 0x3B, 0x00, 0x1D, 0x39, - 0xF2, 0xEF, 0xB7, 0x0E, 0x66, 0x58, 0xD0, 0xE4, - 0xA6, 0x77, 0x72, 0xF8, 0xEB, 0x75, 0x4B, 0x0A, - 0x31, 0x44, 0x50, 0xB4, 0x8F, 0xED, 0x1F, 0x1A, - 0xDB, 0x99, 0x8D, 0x33, 0x9F, 0x11, 0x83, 0x14, - }; - -char *MD2_options() - { - if (sizeof(MD2_INT) == 1) - return("md2(char)"); - else - return("md2(int)"); - } - -void MD2_Init(c) -MD2_CTX *c; - { - c->num=0; - memset(c->state,0,MD2_BLOCK*sizeof(MD2_INT)); - memset(c->cksm,0,MD2_BLOCK*sizeof(MD2_INT)); - memset(c->data,0,MD2_BLOCK); - } - -void MD2_Update(c, data, len) -MD2_CTX *c; -register unsigned char *data; -unsigned long len; - { - register UCHAR *p; - - if (len == 0) return; - - p=c->data; - if (c->num != 0) - { - if ((c->num+len) >= MD2_BLOCK) - { - memcpy(&(p[c->num]),data,MD2_BLOCK-c->num); - md2_block(c,c->data); - data+=(MD2_BLOCK - c->num); - len-=(MD2_BLOCK - c->num); - c->num=0; - /* drop through and do the rest */ - } - else - { - memcpy(&(p[c->num]),data,(int)len); - /* data+=len; */ - c->num+=(int)len; - return; - } - } - /* we now can process the input data in blocks of MD2_BLOCK - * chars and save the leftovers to c->data. */ - while (len >= MD2_BLOCK) - { - md2_block(c,data); - data+=MD2_BLOCK; - len-=MD2_BLOCK; - } - memcpy(p,data,(int)len); - c->num=(int)len; - } - -static void md2_block(c, d) -MD2_CTX *c; -unsigned char *d; - { - register MD2_INT t,*sp1,*sp2; - register int i,j; - MD2_INT state[48]; - - sp1=c->state; - sp2=c->cksm; - j=sp2[MD2_BLOCK-1]; - for (i=0; i<16; i++) - { - state[i]=sp1[i]; - state[i+16]=t=d[i]; - state[i+32]=(t^sp1[i]); - j=sp2[i]^=S[t^j]; - } - t=0; - for (i=0; i<18; i++) - { - for (j=0; j<48; j+=8) - { - t= state[j+ 0]^=S[t]; - t= state[j+ 1]^=S[t]; - t= state[j+ 2]^=S[t]; - t= state[j+ 3]^=S[t]; - t= state[j+ 4]^=S[t]; - t= state[j+ 5]^=S[t]; - t= state[j+ 6]^=S[t]; - t= state[j+ 7]^=S[t]; - } - t=(t+i)&0xff; - } - memcpy(sp1,state,16*sizeof(MD2_INT)); - memset(state,0,48*sizeof(MD2_INT)); - } - -void MD2_Final(md, c) -unsigned char *md; -MD2_CTX *c; - { - int i,v; - register UCHAR *cp; - register MD2_INT *p1,*p2; - - cp=c->data; - p1=c->state; - p2=c->cksm; - v=MD2_BLOCK-c->num; - for (i=c->num; inum = 0; + memset(c->state, 0, sizeof(c->state)); + memset(c->cksm, 0, sizeof(c->cksm)); + memset(c->data, 0, sizeof(c->data)); + return 1; +} + +int MD2_Update(MD2_CTX *c, const unsigned char *data, size_t len) +{ + register UCHAR *p; + + if (len == 0) + return 1; + + p = c->data; + if (c->num != 0) { + if ((c->num + len) >= MD2_BLOCK) { + memcpy(&(p[c->num]), data, MD2_BLOCK - c->num); + md2_block(c, c->data); + data += (MD2_BLOCK - c->num); + len -= (MD2_BLOCK - c->num); + c->num = 0; + /* drop through and do the rest */ + } else { + memcpy(&(p[c->num]), data, len); + /* data+=len; */ + c->num += (int)len; + return 1; + } + } + /* + * we now can process the input data in blocks of MD2_BLOCK chars and + * save the leftovers to c->data. + */ + while (len >= MD2_BLOCK) { + md2_block(c, data); + data += MD2_BLOCK; + len -= MD2_BLOCK; + } + memcpy(p, data, len); + c->num = (int)len; + return 1; +} + +static void md2_block(MD2_CTX *c, const unsigned char *d) +{ + register MD2_INT t, *sp1, *sp2; + register int i, j; + MD2_INT state[48]; + + sp1 = c->state; + sp2 = c->cksm; + j = sp2[MD2_BLOCK - 1]; + for (i = 0; i < 16; i++) { + state[i] = sp1[i]; + state[i + 16] = t = d[i]; + state[i + 32] = (t ^ sp1[i]); + j = sp2[i] ^= S[t ^ j]; + } + t = 0; + for (i = 0; i < 18; i++) { + for (j = 0; j < 48; j += 8) { + t = state[j + 0] ^= S[t]; + t = state[j + 1] ^= S[t]; + t = state[j + 2] ^= S[t]; + t = state[j + 3] ^= S[t]; + t = state[j + 4] ^= S[t]; + t = state[j + 5] ^= S[t]; + t = state[j + 6] ^= S[t]; + t = state[j + 7] ^= S[t]; + } + t = (t + i) & 0xff; + } + memcpy(sp1, state, 16 * sizeof(MD2_INT)); + OPENSSL_cleanse(state, 48 * sizeof(MD2_INT)); +} + +int MD2_Final(unsigned char *md, MD2_CTX *c) +{ + int i, v; + register UCHAR *cp; + register MD2_INT *p1, *p2; + + cp = c->data; + p1 = c->state; + p2 = c->cksm; + v = MD2_BLOCK - c->num; + for (i = c->num; i < MD2_BLOCK; i++) + cp[i] = (UCHAR) v; + + md2_block(c, cp); + + for (i = 0; i < MD2_BLOCK; i++) + cp[i] = (UCHAR) p2[i]; + md2_block(c, cp); + + for (i = 0; i < 16; i++) + md[i] = (UCHAR) (p1[i] & 0xff); + OPENSSL_cleanse(c, sizeof(*c)); + return 1; +}