Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 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 | /* Until the key-gen callbacks are modified to use newer prototypes, we allow |
| 60 | * deprecated functions for openssl-internal code */ |
| 61 | #ifdef OPENSSL_NO_DEPRECATED |
| 62 | #undef OPENSSL_NO_DEPRECATED |
| 63 | #endif |
| 64 | |
| 65 | #include <stdio.h> |
| 66 | #include <stdlib.h> |
| 67 | #include <string.h> |
| 68 | |
| 69 | #include "../e_os.h" |
| 70 | |
| 71 | #include <openssl/crypto.h> |
| 72 | #include <openssl/bio.h> |
| 73 | #include <openssl/bn.h> |
| 74 | #include <openssl/rand.h> |
| 75 | #include <openssl/err.h> |
| 76 | |
| 77 | #ifdef OPENSSL_NO_DH |
| 78 | int main(int argc, char *argv[]) |
| 79 | { |
| 80 | printf("No DH support\n"); |
| 81 | return(0); |
| 82 | } |
| 83 | #else |
| 84 | #include <openssl/dh.h> |
| 85 | |
| 86 | #ifdef OPENSSL_SYS_WIN16 |
| 87 | #define MS_CALLBACK _far _loadds |
| 88 | #else |
| 89 | #define MS_CALLBACK |
| 90 | #endif |
| 91 | |
| 92 | static int MS_CALLBACK cb(int p, int n, BN_GENCB *arg); |
| 93 | |
| 94 | static const char rnd_seed[] = "string to make the random number generator think it has entropy"; |
| 95 | |
| 96 | int main(int argc, char *argv[]) |
| 97 | { |
| 98 | BN_GENCB _cb; |
| 99 | DH *a; |
| 100 | DH *b=NULL; |
| 101 | char buf[12]; |
| 102 | unsigned char *abuf=NULL,*bbuf=NULL; |
| 103 | int i,alen,blen,aout,bout,ret=1; |
| 104 | BIO *out; |
| 105 | |
| 106 | CRYPTO_malloc_debug_init(); |
| 107 | CRYPTO_dbg_set_options(V_CRYPTO_MDEBUG_ALL); |
| 108 | CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON); |
| 109 | |
| 110 | #ifdef OPENSSL_SYS_WIN32 |
| 111 | CRYPTO_malloc_init(); |
| 112 | #endif |
| 113 | |
| 114 | RAND_seed(rnd_seed, sizeof rnd_seed); |
| 115 | |
| 116 | out=BIO_new(BIO_s_file()); |
| 117 | if (out == NULL) EXIT(1); |
| 118 | BIO_set_fp(out,stdout,BIO_NOCLOSE); |
| 119 | |
| 120 | BN_GENCB_set(&_cb, &cb, out); |
| 121 | if(((a = DH_new()) == NULL) || !DH_generate_parameters_ex(a, 64, |
| 122 | DH_GENERATOR_5, &_cb)) |
| 123 | goto err; |
| 124 | |
| 125 | if (!DH_check(a, &i)) goto err; |
| 126 | if (i & DH_CHECK_P_NOT_PRIME) |
| 127 | BIO_puts(out, "p value is not prime\n"); |
| 128 | if (i & DH_CHECK_P_NOT_SAFE_PRIME) |
| 129 | BIO_puts(out, "p value is not a safe prime\n"); |
| 130 | if (i & DH_UNABLE_TO_CHECK_GENERATOR) |
| 131 | BIO_puts(out, "unable to check the generator value\n"); |
| 132 | if (i & DH_NOT_SUITABLE_GENERATOR) |
| 133 | BIO_puts(out, "the g value is not a generator\n"); |
| 134 | |
| 135 | BIO_puts(out,"\np ="); |
| 136 | BN_print(out,a->p); |
| 137 | BIO_puts(out,"\ng ="); |
| 138 | BN_print(out,a->g); |
| 139 | BIO_puts(out,"\n"); |
| 140 | |
| 141 | b=DH_new(); |
| 142 | if (b == NULL) goto err; |
| 143 | |
| 144 | b->p=BN_dup(a->p); |
| 145 | b->g=BN_dup(a->g); |
| 146 | if ((b->p == NULL) || (b->g == NULL)) goto err; |
| 147 | |
| 148 | /* Set a to run with normal modexp and b to use constant time */ |
| 149 | a->flags &= ~DH_FLAG_NO_EXP_CONSTTIME; |
| 150 | b->flags |= DH_FLAG_NO_EXP_CONSTTIME; |
| 151 | |
| 152 | if (!DH_generate_key(a)) goto err; |
| 153 | BIO_puts(out,"pri 1="); |
| 154 | BN_print(out,a->priv_key); |
| 155 | BIO_puts(out,"\npub 1="); |
| 156 | BN_print(out,a->pub_key); |
| 157 | BIO_puts(out,"\n"); |
| 158 | |
| 159 | if (!DH_generate_key(b)) goto err; |
| 160 | BIO_puts(out,"pri 2="); |
| 161 | BN_print(out,b->priv_key); |
| 162 | BIO_puts(out,"\npub 2="); |
| 163 | BN_print(out,b->pub_key); |
| 164 | BIO_puts(out,"\n"); |
| 165 | |
| 166 | alen=DH_size(a); |
| 167 | abuf=(unsigned char *)OPENSSL_malloc(alen); |
| 168 | aout=DH_compute_key(abuf,b->pub_key,a); |
| 169 | |
| 170 | BIO_puts(out,"key1 ="); |
| 171 | for (i=0; i<aout; i++) |
| 172 | { |
| 173 | sprintf(buf,"%02X",abuf[i]); |
| 174 | BIO_puts(out,buf); |
| 175 | } |
| 176 | BIO_puts(out,"\n"); |
| 177 | |
| 178 | blen=DH_size(b); |
| 179 | bbuf=(unsigned char *)OPENSSL_malloc(blen); |
| 180 | bout=DH_compute_key(bbuf,a->pub_key,b); |
| 181 | |
| 182 | BIO_puts(out,"key2 ="); |
| 183 | for (i=0; i<bout; i++) |
| 184 | { |
| 185 | sprintf(buf,"%02X",bbuf[i]); |
| 186 | BIO_puts(out,buf); |
| 187 | } |
| 188 | BIO_puts(out,"\n"); |
| 189 | if ((aout < 4) || (bout != aout) || (memcmp(abuf,bbuf,aout) != 0)) |
| 190 | { |
| 191 | fprintf(stderr,"Error in DH routines\n"); |
| 192 | ret=1; |
| 193 | } |
| 194 | else |
| 195 | ret=0; |
| 196 | err: |
| 197 | ERR_print_errors_fp(stderr); |
| 198 | |
| 199 | if (abuf != NULL) OPENSSL_free(abuf); |
| 200 | if (bbuf != NULL) OPENSSL_free(bbuf); |
| 201 | if(b != NULL) DH_free(b); |
| 202 | if(a != NULL) DH_free(a); |
| 203 | BIO_free(out); |
| 204 | #ifdef OPENSSL_SYS_NETWARE |
| 205 | if (ret) printf("ERROR: %d\n", ret); |
| 206 | #endif |
| 207 | EXIT(ret); |
| 208 | return(ret); |
| 209 | } |
| 210 | |
| 211 | static int MS_CALLBACK cb(int p, int n, BN_GENCB *arg) |
| 212 | { |
| 213 | char c='*'; |
| 214 | |
| 215 | if (p == 0) c='.'; |
| 216 | if (p == 1) c='+'; |
| 217 | if (p == 2) c='*'; |
| 218 | if (p == 3) c='\n'; |
| 219 | BIO_write(arg->arg,&c,1); |
| 220 | (void)BIO_flush(arg->arg); |
| 221 | #ifdef LINT |
| 222 | p=n; |
| 223 | #endif |
| 224 | return 1; |
| 225 | } |
| 226 | #endif |