1*0Sstevel@tonic-gate /* crypto/md2/md2_dgst.c */ 2*0Sstevel@tonic-gate /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3*0Sstevel@tonic-gate * All rights reserved. 4*0Sstevel@tonic-gate * 5*0Sstevel@tonic-gate * This package is an SSL implementation written 6*0Sstevel@tonic-gate * by Eric Young (eay@cryptsoft.com). 7*0Sstevel@tonic-gate * The implementation was written so as to conform with Netscapes SSL. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * This library is free for commercial and non-commercial use as long as 10*0Sstevel@tonic-gate * the following conditions are aheared to. The following conditions 11*0Sstevel@tonic-gate * apply to all code found in this distribution, be it the RC4, RSA, 12*0Sstevel@tonic-gate * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13*0Sstevel@tonic-gate * included with this distribution is covered by the same copyright terms 14*0Sstevel@tonic-gate * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15*0Sstevel@tonic-gate * 16*0Sstevel@tonic-gate * Copyright remains Eric Young's, and as such any Copyright notices in 17*0Sstevel@tonic-gate * the code are not to be removed. 18*0Sstevel@tonic-gate * If this package is used in a product, Eric Young should be given attribution 19*0Sstevel@tonic-gate * as the author of the parts of the library used. 20*0Sstevel@tonic-gate * This can be in the form of a textual message at program startup or 21*0Sstevel@tonic-gate * in documentation (online or textual) provided with the package. 22*0Sstevel@tonic-gate * 23*0Sstevel@tonic-gate * Redistribution and use in source and binary forms, with or without 24*0Sstevel@tonic-gate * modification, are permitted provided that the following conditions 25*0Sstevel@tonic-gate * are met: 26*0Sstevel@tonic-gate * 1. Redistributions of source code must retain the copyright 27*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer. 28*0Sstevel@tonic-gate * 2. Redistributions in binary form must reproduce the above copyright 29*0Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer in the 30*0Sstevel@tonic-gate * documentation and/or other materials provided with the distribution. 31*0Sstevel@tonic-gate * 3. All advertising materials mentioning features or use of this software 32*0Sstevel@tonic-gate * must display the following acknowledgement: 33*0Sstevel@tonic-gate * "This product includes cryptographic software written by 34*0Sstevel@tonic-gate * Eric Young (eay@cryptsoft.com)" 35*0Sstevel@tonic-gate * The word 'cryptographic' can be left out if the rouines from the library 36*0Sstevel@tonic-gate * being used are not cryptographic related :-). 37*0Sstevel@tonic-gate * 4. If you include any Windows specific code (or a derivative thereof) from 38*0Sstevel@tonic-gate * the apps directory (application code) you must include an acknowledgement: 39*0Sstevel@tonic-gate * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40*0Sstevel@tonic-gate * 41*0Sstevel@tonic-gate * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42*0Sstevel@tonic-gate * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43*0Sstevel@tonic-gate * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44*0Sstevel@tonic-gate * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45*0Sstevel@tonic-gate * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46*0Sstevel@tonic-gate * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47*0Sstevel@tonic-gate * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48*0Sstevel@tonic-gate * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49*0Sstevel@tonic-gate * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50*0Sstevel@tonic-gate * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51*0Sstevel@tonic-gate * SUCH DAMAGE. 52*0Sstevel@tonic-gate * 53*0Sstevel@tonic-gate * The licence and distribution terms for any publically available version or 54*0Sstevel@tonic-gate * derivative of this code cannot be changed. i.e. this code cannot simply be 55*0Sstevel@tonic-gate * copied and put under another distribution licence 56*0Sstevel@tonic-gate * [including the GNU Public Licence.] 57*0Sstevel@tonic-gate */ 58*0Sstevel@tonic-gate 59*0Sstevel@tonic-gate #include <stdio.h> 60*0Sstevel@tonic-gate #include <stdlib.h> 61*0Sstevel@tonic-gate #include <string.h> 62*0Sstevel@tonic-gate #include <openssl/md2.h> 63*0Sstevel@tonic-gate #include <openssl/opensslv.h> 64*0Sstevel@tonic-gate #include <openssl/crypto.h> 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate const char *MD2_version="MD2" OPENSSL_VERSION_PTEXT; 67*0Sstevel@tonic-gate 68*0Sstevel@tonic-gate /* Implemented from RFC1319 The MD2 Message-Digest Algorithm 69*0Sstevel@tonic-gate */ 70*0Sstevel@tonic-gate 71*0Sstevel@tonic-gate #define UCHAR unsigned char 72*0Sstevel@tonic-gate 73*0Sstevel@tonic-gate static void md2_block(MD2_CTX *c, const unsigned char *d); 74*0Sstevel@tonic-gate /* The magic S table - I have converted it to hex since it is 75*0Sstevel@tonic-gate * basically just a random byte string. */ 76*0Sstevel@tonic-gate static MD2_INT S[256]={ 77*0Sstevel@tonic-gate 0x29, 0x2E, 0x43, 0xC9, 0xA2, 0xD8, 0x7C, 0x01, 78*0Sstevel@tonic-gate 0x3D, 0x36, 0x54, 0xA1, 0xEC, 0xF0, 0x06, 0x13, 79*0Sstevel@tonic-gate 0x62, 0xA7, 0x05, 0xF3, 0xC0, 0xC7, 0x73, 0x8C, 80*0Sstevel@tonic-gate 0x98, 0x93, 0x2B, 0xD9, 0xBC, 0x4C, 0x82, 0xCA, 81*0Sstevel@tonic-gate 0x1E, 0x9B, 0x57, 0x3C, 0xFD, 0xD4, 0xE0, 0x16, 82*0Sstevel@tonic-gate 0x67, 0x42, 0x6F, 0x18, 0x8A, 0x17, 0xE5, 0x12, 83*0Sstevel@tonic-gate 0xBE, 0x4E, 0xC4, 0xD6, 0xDA, 0x9E, 0xDE, 0x49, 84*0Sstevel@tonic-gate 0xA0, 0xFB, 0xF5, 0x8E, 0xBB, 0x2F, 0xEE, 0x7A, 85*0Sstevel@tonic-gate 0xA9, 0x68, 0x79, 0x91, 0x15, 0xB2, 0x07, 0x3F, 86*0Sstevel@tonic-gate 0x94, 0xC2, 0x10, 0x89, 0x0B, 0x22, 0x5F, 0x21, 87*0Sstevel@tonic-gate 0x80, 0x7F, 0x5D, 0x9A, 0x5A, 0x90, 0x32, 0x27, 88*0Sstevel@tonic-gate 0x35, 0x3E, 0xCC, 0xE7, 0xBF, 0xF7, 0x97, 0x03, 89*0Sstevel@tonic-gate 0xFF, 0x19, 0x30, 0xB3, 0x48, 0xA5, 0xB5, 0xD1, 90*0Sstevel@tonic-gate 0xD7, 0x5E, 0x92, 0x2A, 0xAC, 0x56, 0xAA, 0xC6, 91*0Sstevel@tonic-gate 0x4F, 0xB8, 0x38, 0xD2, 0x96, 0xA4, 0x7D, 0xB6, 92*0Sstevel@tonic-gate 0x76, 0xFC, 0x6B, 0xE2, 0x9C, 0x74, 0x04, 0xF1, 93*0Sstevel@tonic-gate 0x45, 0x9D, 0x70, 0x59, 0x64, 0x71, 0x87, 0x20, 94*0Sstevel@tonic-gate 0x86, 0x5B, 0xCF, 0x65, 0xE6, 0x2D, 0xA8, 0x02, 95*0Sstevel@tonic-gate 0x1B, 0x60, 0x25, 0xAD, 0xAE, 0xB0, 0xB9, 0xF6, 96*0Sstevel@tonic-gate 0x1C, 0x46, 0x61, 0x69, 0x34, 0x40, 0x7E, 0x0F, 97*0Sstevel@tonic-gate 0x55, 0x47, 0xA3, 0x23, 0xDD, 0x51, 0xAF, 0x3A, 98*0Sstevel@tonic-gate 0xC3, 0x5C, 0xF9, 0xCE, 0xBA, 0xC5, 0xEA, 0x26, 99*0Sstevel@tonic-gate 0x2C, 0x53, 0x0D, 0x6E, 0x85, 0x28, 0x84, 0x09, 100*0Sstevel@tonic-gate 0xD3, 0xDF, 0xCD, 0xF4, 0x41, 0x81, 0x4D, 0x52, 101*0Sstevel@tonic-gate 0x6A, 0xDC, 0x37, 0xC8, 0x6C, 0xC1, 0xAB, 0xFA, 102*0Sstevel@tonic-gate 0x24, 0xE1, 0x7B, 0x08, 0x0C, 0xBD, 0xB1, 0x4A, 103*0Sstevel@tonic-gate 0x78, 0x88, 0x95, 0x8B, 0xE3, 0x63, 0xE8, 0x6D, 104*0Sstevel@tonic-gate 0xE9, 0xCB, 0xD5, 0xFE, 0x3B, 0x00, 0x1D, 0x39, 105*0Sstevel@tonic-gate 0xF2, 0xEF, 0xB7, 0x0E, 0x66, 0x58, 0xD0, 0xE4, 106*0Sstevel@tonic-gate 0xA6, 0x77, 0x72, 0xF8, 0xEB, 0x75, 0x4B, 0x0A, 107*0Sstevel@tonic-gate 0x31, 0x44, 0x50, 0xB4, 0x8F, 0xED, 0x1F, 0x1A, 108*0Sstevel@tonic-gate 0xDB, 0x99, 0x8D, 0x33, 0x9F, 0x11, 0x83, 0x14, 109*0Sstevel@tonic-gate }; 110*0Sstevel@tonic-gate 111*0Sstevel@tonic-gate const char *MD2_options(void) 112*0Sstevel@tonic-gate { 113*0Sstevel@tonic-gate if (sizeof(MD2_INT) == 1) 114*0Sstevel@tonic-gate return("md2(char)"); 115*0Sstevel@tonic-gate else 116*0Sstevel@tonic-gate return("md2(int)"); 117*0Sstevel@tonic-gate } 118*0Sstevel@tonic-gate 119*0Sstevel@tonic-gate int MD2_Init(MD2_CTX *c) 120*0Sstevel@tonic-gate { 121*0Sstevel@tonic-gate c->num=0; 122*0Sstevel@tonic-gate memset(c->state,0,sizeof c->state); 123*0Sstevel@tonic-gate memset(c->cksm,0,sizeof c->cksm); 124*0Sstevel@tonic-gate memset(c->data,0,sizeof c->data); 125*0Sstevel@tonic-gate return 1; 126*0Sstevel@tonic-gate } 127*0Sstevel@tonic-gate 128*0Sstevel@tonic-gate int MD2_Update(MD2_CTX *c, const unsigned char *data, unsigned long len) 129*0Sstevel@tonic-gate { 130*0Sstevel@tonic-gate register UCHAR *p; 131*0Sstevel@tonic-gate 132*0Sstevel@tonic-gate if (len == 0) return 1; 133*0Sstevel@tonic-gate 134*0Sstevel@tonic-gate p=c->data; 135*0Sstevel@tonic-gate if (c->num != 0) 136*0Sstevel@tonic-gate { 137*0Sstevel@tonic-gate if ((c->num+len) >= MD2_BLOCK) 138*0Sstevel@tonic-gate { 139*0Sstevel@tonic-gate memcpy(&(p[c->num]),data,MD2_BLOCK-c->num); 140*0Sstevel@tonic-gate md2_block(c,c->data); 141*0Sstevel@tonic-gate data+=(MD2_BLOCK - c->num); 142*0Sstevel@tonic-gate len-=(MD2_BLOCK - c->num); 143*0Sstevel@tonic-gate c->num=0; 144*0Sstevel@tonic-gate /* drop through and do the rest */ 145*0Sstevel@tonic-gate } 146*0Sstevel@tonic-gate else 147*0Sstevel@tonic-gate { 148*0Sstevel@tonic-gate memcpy(&(p[c->num]),data,(int)len); 149*0Sstevel@tonic-gate /* data+=len; */ 150*0Sstevel@tonic-gate c->num+=(int)len; 151*0Sstevel@tonic-gate return 1; 152*0Sstevel@tonic-gate } 153*0Sstevel@tonic-gate } 154*0Sstevel@tonic-gate /* we now can process the input data in blocks of MD2_BLOCK 155*0Sstevel@tonic-gate * chars and save the leftovers to c->data. */ 156*0Sstevel@tonic-gate while (len >= MD2_BLOCK) 157*0Sstevel@tonic-gate { 158*0Sstevel@tonic-gate md2_block(c,data); 159*0Sstevel@tonic-gate data+=MD2_BLOCK; 160*0Sstevel@tonic-gate len-=MD2_BLOCK; 161*0Sstevel@tonic-gate } 162*0Sstevel@tonic-gate memcpy(p,data,(int)len); 163*0Sstevel@tonic-gate c->num=(int)len; 164*0Sstevel@tonic-gate return 1; 165*0Sstevel@tonic-gate } 166*0Sstevel@tonic-gate 167*0Sstevel@tonic-gate static void md2_block(MD2_CTX *c, const unsigned char *d) 168*0Sstevel@tonic-gate { 169*0Sstevel@tonic-gate register MD2_INT t,*sp1,*sp2; 170*0Sstevel@tonic-gate register int i,j; 171*0Sstevel@tonic-gate MD2_INT state[48]; 172*0Sstevel@tonic-gate 173*0Sstevel@tonic-gate sp1=c->state; 174*0Sstevel@tonic-gate sp2=c->cksm; 175*0Sstevel@tonic-gate j=sp2[MD2_BLOCK-1]; 176*0Sstevel@tonic-gate for (i=0; i<16; i++) 177*0Sstevel@tonic-gate { 178*0Sstevel@tonic-gate state[i]=sp1[i]; 179*0Sstevel@tonic-gate state[i+16]=t=d[i]; 180*0Sstevel@tonic-gate state[i+32]=(t^sp1[i]); 181*0Sstevel@tonic-gate j=sp2[i]^=S[t^j]; 182*0Sstevel@tonic-gate } 183*0Sstevel@tonic-gate t=0; 184*0Sstevel@tonic-gate for (i=0; i<18; i++) 185*0Sstevel@tonic-gate { 186*0Sstevel@tonic-gate for (j=0; j<48; j+=8) 187*0Sstevel@tonic-gate { 188*0Sstevel@tonic-gate t= state[j+ 0]^=S[t]; 189*0Sstevel@tonic-gate t= state[j+ 1]^=S[t]; 190*0Sstevel@tonic-gate t= state[j+ 2]^=S[t]; 191*0Sstevel@tonic-gate t= state[j+ 3]^=S[t]; 192*0Sstevel@tonic-gate t= state[j+ 4]^=S[t]; 193*0Sstevel@tonic-gate t= state[j+ 5]^=S[t]; 194*0Sstevel@tonic-gate t= state[j+ 6]^=S[t]; 195*0Sstevel@tonic-gate t= state[j+ 7]^=S[t]; 196*0Sstevel@tonic-gate } 197*0Sstevel@tonic-gate t=(t+i)&0xff; 198*0Sstevel@tonic-gate } 199*0Sstevel@tonic-gate memcpy(sp1,state,16*sizeof(MD2_INT)); 200*0Sstevel@tonic-gate OPENSSL_cleanse(state,48*sizeof(MD2_INT)); 201*0Sstevel@tonic-gate } 202*0Sstevel@tonic-gate 203*0Sstevel@tonic-gate int MD2_Final(unsigned char *md, MD2_CTX *c) 204*0Sstevel@tonic-gate { 205*0Sstevel@tonic-gate int i,v; 206*0Sstevel@tonic-gate register UCHAR *cp; 207*0Sstevel@tonic-gate register MD2_INT *p1,*p2; 208*0Sstevel@tonic-gate 209*0Sstevel@tonic-gate cp=c->data; 210*0Sstevel@tonic-gate p1=c->state; 211*0Sstevel@tonic-gate p2=c->cksm; 212*0Sstevel@tonic-gate v=MD2_BLOCK-c->num; 213*0Sstevel@tonic-gate for (i=c->num; i<MD2_BLOCK; i++) 214*0Sstevel@tonic-gate cp[i]=(UCHAR)v; 215*0Sstevel@tonic-gate 216*0Sstevel@tonic-gate md2_block(c,cp); 217*0Sstevel@tonic-gate 218*0Sstevel@tonic-gate for (i=0; i<MD2_BLOCK; i++) 219*0Sstevel@tonic-gate cp[i]=(UCHAR)p2[i]; 220*0Sstevel@tonic-gate md2_block(c,cp); 221*0Sstevel@tonic-gate 222*0Sstevel@tonic-gate for (i=0; i<16; i++) 223*0Sstevel@tonic-gate md[i]=(UCHAR)(p1[i]&0xff); 224*0Sstevel@tonic-gate memset((char *)&c,0,sizeof(c)); 225*0Sstevel@tonic-gate return 1; 226*0Sstevel@tonic-gate } 227*0Sstevel@tonic-gate 228