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| 1 /* crypto/mdc2/mdc2dgst.c */ | |
| 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | |
| 3 * All rights reserved. | |
| 4 * | |
| 5 * This package is an SSL implementation written | |
| 6 * by Eric Young (eay@cryptsoft.com). | |
| 7 * The implementation was written so as to conform with Netscapes SSL. | |
| 8 * | |
| 9 * This library is free for commercial and non-commercial use as long as | |
| 10 * the following conditions are aheared to. The following conditions | |
| 11 * apply to all code found in this distribution, be it the RC4, RSA, | |
| 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
| 13 * included with this distribution is covered by the same copyright terms | |
| 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
| 15 * | |
| 16 * Copyright remains Eric Young's, and as such any Copyright notices in | |
| 17 * the code are not to be removed. | |
| 18 * If this package is used in a product, Eric Young should be given attribution | |
| 19 * as the author of the parts of the library used. | |
| 20 * This can be in the form of a textual message at program startup or | |
| 21 * in documentation (online or textual) provided with the package. | |
| 22 * | |
| 23 * Redistribution and use in source and binary forms, with or without | |
| 24 * modification, are permitted provided that the following conditions | |
| 25 * are met: | |
| 26 * 1. Redistributions of source code must retain the copyright | |
| 27 * notice, this list of conditions and the following disclaimer. | |
| 28 * 2. Redistributions in binary form must reproduce the above copyright | |
| 29 * notice, this list of conditions and the following disclaimer in the | |
| 30 * documentation and/or other materials provided with the distribution. | |
| 31 * 3. All advertising materials mentioning features or use of this software | |
| 32 * must display the following acknowledgement: | |
| 33 * "This product includes cryptographic software written by | |
| 34 * Eric Young (eay@cryptsoft.com)" | |
| 35 * The word 'cryptographic' can be left out if the rouines from the library | |
| 36 * being used are not cryptographic related :-). | |
| 37 * 4. If you include any Windows specific code (or a derivative thereof) from | |
| 38 * the apps directory (application code) you must include an acknowledgement: | |
| 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
| 40 * | |
| 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | |
| 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
| 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 51 * SUCH DAMAGE. | |
| 52 * | |
| 53 * The licence and distribution terms for any publically available version or | |
| 54 * derivative of this code cannot be changed. i.e. this code cannot simply be | |
| 55 * copied and put under another distribution licence | |
| 56 * [including the GNU Public Licence.] | |
| 57 */ | |
| 58 | |
| 59 #include <stdio.h> | |
| 60 #include <stdlib.h> | |
| 61 #include <string.h> | |
| 62 #include <openssl/crypto.h> | |
| 63 #include <openssl/des.h> | |
| 64 #include <openssl/mdc2.h> | |
| 65 | |
| 66 #undef c2l | |
| 67 #define c2l(c,l) (l =((DES_LONG)(*((c)++))) , \ | |
| 68 l|=((DES_LONG)(*((c)++)))<< 8L, \ | |
| 69 l|=((DES_LONG)(*((c)++)))<<16L, \ | |
| 70 l|=((DES_LONG)(*((c)++)))<<24L) | |
| 71 | |
| 72 #undef l2c | |
| 73 #define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \ | |
| 74 *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \ | |
| 75 *((c)++)=(unsigned char)(((l)>>16L)&0xff), \ | |
| 76 *((c)++)=(unsigned char)(((l)>>24L)&0xff)) | |
| 77 | |
| 78 static void mdc2_body(MDC2_CTX *c, const unsigned char *in, size_t len); | |
| 79 fips_md_init(MDC2) | |
| 80 { | |
| 81 c->num=0; | |
| 82 c->pad_type=1; | |
| 83 memset(&(c->h[0]),0x52,MDC2_BLOCK); | |
| 84 memset(&(c->hh[0]),0x25,MDC2_BLOCK); | |
| 85 return 1; | |
| 86 } | |
| 87 | |
| 88 int MDC2_Update(MDC2_CTX *c, const unsigned char *in, size_t len) | |
| 89 { | |
| 90 size_t i,j; | |
| 91 | |
| 92 i=c->num; | |
| 93 if (i != 0) | |
| 94 { | |
| 95 if (i+len < MDC2_BLOCK) | |
| 96 { | |
| 97 /* partial block */ | |
| 98 memcpy(&(c->data[i]),in,len); | |
| 99 c->num+=(int)len; | |
| 100 return 1; | |
| 101 } | |
| 102 else | |
| 103 { | |
| 104 /* filled one */ | |
| 105 j=MDC2_BLOCK-i; | |
| 106 memcpy(&(c->data[i]),in,j); | |
| 107 len-=j; | |
| 108 in+=j; | |
| 109 c->num=0; | |
| 110 mdc2_body(c,&(c->data[0]),MDC2_BLOCK); | |
| 111 } | |
| 112 } | |
| 113 i=len&~((size_t)MDC2_BLOCK-1); | |
| 114 if (i > 0) mdc2_body(c,in,i); | |
| 115 j=len-i; | |
| 116 if (j > 0) | |
| 117 { | |
| 118 memcpy(&(c->data[0]),&(in[i]),j); | |
| 119 c->num=(int)j; | |
| 120 } | |
| 121 return 1; | |
| 122 } | |
| 123 | |
| 124 static void mdc2_body(MDC2_CTX *c, const unsigned char *in, size_t len) | |
| 125 { | |
| 126 register DES_LONG tin0,tin1; | |
| 127 register DES_LONG ttin0,ttin1; | |
| 128 DES_LONG d[2],dd[2]; | |
| 129 DES_key_schedule k; | |
| 130 unsigned char *p; | |
| 131 size_t i; | |
| 132 | |
| 133 for (i=0; i<len; i+=8) | |
| 134 { | |
| 135 c2l(in,tin0); d[0]=dd[0]=tin0; | |
| 136 c2l(in,tin1); d[1]=dd[1]=tin1; | |
| 137 c->h[0]=(c->h[0]&0x9f)|0x40; | |
| 138 c->hh[0]=(c->hh[0]&0x9f)|0x20; | |
| 139 | |
| 140 DES_set_odd_parity(&c->h); | |
| 141 DES_set_key_unchecked(&c->h,&k); | |
| 142 DES_encrypt1(d,&k,1); | |
| 143 | |
| 144 DES_set_odd_parity(&c->hh); | |
| 145 DES_set_key_unchecked(&c->hh,&k); | |
| 146 DES_encrypt1(dd,&k,1); | |
| 147 | |
| 148 ttin0=tin0^dd[0]; | |
| 149 ttin1=tin1^dd[1]; | |
| 150 tin0^=d[0]; | |
| 151 tin1^=d[1]; | |
| 152 | |
| 153 p=c->h; | |
| 154 l2c(tin0,p); | |
| 155 l2c(ttin1,p); | |
| 156 p=c->hh; | |
| 157 l2c(ttin0,p); | |
| 158 l2c(tin1,p); | |
| 159 } | |
| 160 } | |
| 161 | |
| 162 int MDC2_Final(unsigned char *md, MDC2_CTX *c) | |
| 163 { | |
| 164 unsigned int i; | |
| 165 int j; | |
| 166 | |
| 167 i=c->num; | |
| 168 j=c->pad_type; | |
| 169 if ((i > 0) || (j == 2)) | |
| 170 { | |
| 171 if (j == 2) | |
| 172 c->data[i++]=0x80; | |
| 173 memset(&(c->data[i]),0,MDC2_BLOCK-i); | |
| 174 mdc2_body(c,c->data,MDC2_BLOCK); | |
| 175 } | |
| 176 memcpy(md,(char *)c->h,MDC2_BLOCK); | |
| 177 memcpy(&(md[MDC2_BLOCK]),(char *)c->hh,MDC2_BLOCK); | |
| 178 return 1; | |
| 179 } | |
| 180 | |
| 181 #undef TEST | |
| 182 | |
| 183 #ifdef TEST | |
| 184 main() | |
| 185 { | |
| 186 unsigned char md[MDC2_DIGEST_LENGTH]; | |
| 187 int i; | |
| 188 MDC2_CTX c; | |
| 189 static char *text="Now is the time for all "; | |
| 190 | |
| 191 MDC2_Init(&c); | |
| 192 MDC2_Update(&c,text,strlen(text)); | |
| 193 MDC2_Final(&(md[0]),&c); | |
| 194 | |
| 195 for (i=0; i<MDC2_DIGEST_LENGTH; i++) | |
| 196 printf("%02X",md[i]); | |
| 197 printf("\n"); | |
| 198 } | |
| 199 | |
| 200 #endif | |
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Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master