1/* crypto/dh/dhtest.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 63#include "../e_os.h" 64 65#include <openssl/crypto.h> 66#include <openssl/bio.h> 67#include <openssl/bn.h> 68#include <openssl/rand.h> 69#include <openssl/err.h> 70 71#ifdef OPENSSL_NO_DH 72int main(int argc, char *argv[]) 73{ 74 printf("No DH support\n"); 75 return(0); 76} 77#else 78#include <openssl/dh.h> 79 80#ifdef OPENSSL_SYS_WIN16 81#define MS_CALLBACK _far _loadds 82#else 83#define MS_CALLBACK 84#endif 85 86static void MS_CALLBACK cb(int p, int n, void *arg); 87 88static const char rnd_seed[] = "string to make the random number generator think it has entropy"; 89 90int main(int argc, char *argv[]) 91 { 92 DH *a; 93 DH *b=NULL; 94 char buf[12]; 95 unsigned char *abuf=NULL,*bbuf=NULL; 96 int i,alen,blen,aout,bout,ret=1; 97 BIO *out; 98 99 CRYPTO_malloc_debug_init(); 100 CRYPTO_dbg_set_options(V_CRYPTO_MDEBUG_ALL); 101 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON); 102 103#ifdef OPENSSL_SYS_WIN32 104 CRYPTO_malloc_init(); 105#endif 106 107 RAND_seed(rnd_seed, sizeof rnd_seed); 108 109 out=BIO_new(BIO_s_file()); 110 if (out == NULL) EXIT(1); 111 BIO_set_fp(out,stdout,BIO_NOCLOSE); 112 113 a=DH_generate_parameters(64,DH_GENERATOR_5,cb,out); 114 if (a == NULL) goto err; 115 116 if (!DH_check(a, &i)) goto err; 117 if (i & DH_CHECK_P_NOT_PRIME) 118 BIO_puts(out, "p value is not prime\n"); 119 if (i & DH_CHECK_P_NOT_SAFE_PRIME) 120 BIO_puts(out, "p value is not a safe prime\n"); 121 if (i & DH_UNABLE_TO_CHECK_GENERATOR) 122 BIO_puts(out, "unable to check the generator value\n"); 123 if (i & DH_NOT_SUITABLE_GENERATOR) 124 BIO_puts(out, "the g value is not a generator\n"); 125 126 BIO_puts(out,"\np ="); 127 BN_print(out,a->p); 128 BIO_puts(out,"\ng ="); 129 BN_print(out,a->g); 130 BIO_puts(out,"\n"); 131 132 b=DH_new(); 133 if (b == NULL) goto err; 134 135 b->p=BN_dup(a->p); 136 b->g=BN_dup(a->g); 137 if ((b->p == NULL) || (b->g == NULL)) goto err; 138 139 if (!DH_generate_key(a)) goto err; 140 BIO_puts(out,"pri 1="); 141 BN_print(out,a->priv_key); 142 BIO_puts(out,"\npub 1="); 143 BN_print(out,a->pub_key); 144 BIO_puts(out,"\n"); 145 146 if (!DH_generate_key(b)) goto err; 147 BIO_puts(out,"pri 2="); 148 BN_print(out,b->priv_key); 149 BIO_puts(out,"\npub 2="); 150 BN_print(out,b->pub_key); 151 BIO_puts(out,"\n"); 152 153 alen=DH_size(a); 154 abuf=(unsigned char *)OPENSSL_malloc(alen); 155 aout=DH_compute_key(abuf,b->pub_key,a); 156 157 BIO_puts(out,"key1 ="); 158 for (i=0; i<aout; i++) 159 { 160 sprintf(buf,"%02X",abuf[i]); 161 BIO_puts(out,buf); 162 } 163 BIO_puts(out,"\n"); 164 165 blen=DH_size(b); 166 bbuf=(unsigned char *)OPENSSL_malloc(blen); 167 bout=DH_compute_key(bbuf,a->pub_key,b); 168 169 BIO_puts(out,"key2 ="); 170 for (i=0; i<bout; i++) 171 { 172 sprintf(buf,"%02X",bbuf[i]); 173 BIO_puts(out,buf); 174 } 175 BIO_puts(out,"\n"); 176 if ((aout < 4) || (bout != aout) || (memcmp(abuf,bbuf,aout) != 0)) 177 { 178 fprintf(stderr,"Error in DH routines\n"); 179 ret=1; 180 } 181 else 182 ret=0; 183err: 184 ERR_print_errors_fp(stderr); 185 186 if (abuf != NULL) OPENSSL_free(abuf); 187 if (bbuf != NULL) OPENSSL_free(bbuf); 188 if(b != NULL) DH_free(b); 189 if(a != NULL) DH_free(a); 190 BIO_free(out); 191 CRYPTO_cleanup_all_ex_data(); 192 ERR_remove_state(0); 193 CRYPTO_mem_leaks_fp(stderr); 194 EXIT(ret); 195 return(ret); 196 } 197 198static void MS_CALLBACK cb(int p, int n, void *arg) 199 { 200 char c='*'; 201 202 if (p == 0) c='.'; 203 if (p == 1) c='+'; 204 if (p == 2) c='*'; 205 if (p == 3) c='\n'; 206 BIO_write((BIO *)arg,&c,1); 207 (void)BIO_flush((BIO *)arg); 208#ifdef LINT 209 p=n; 210#endif 211 } 212#endif 213