1 /* crypto/dh/dhtest.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
63 #include "../bio/bss_file.c"
65 #include <openssl/crypto.h>
66 #include <openssl/bio.h>
67 #include <openssl/bn.h>
68 #include <openssl/rand.h>
71 int main(int argc, char *argv[])
73 printf("No DH support\n");
77 #include <openssl/dh.h>
80 #define MS_CALLBACK _far _loadds
85 static void MS_CALLBACK cb(int p, int n, void *arg);
86 #ifdef OPENSSL_NO_STDIO
91 static const char rnd_seed[] = "string to make the random number generator think it has entropy";
93 int main(int argc, char *argv[])
98 unsigned char *abuf=NULL,*bbuf=NULL;
99 int i,alen,blen,aout,bout,ret=1;
103 CRYPTO_malloc_init();
106 RAND_seed(rnd_seed, sizeof rnd_seed);
108 out=BIO_new(BIO_s_file());
109 if (out == NULL) exit(1);
110 BIO_set_fp(out,stdout,BIO_NOCLOSE);
112 a=DH_generate_parameters(64,DH_GENERATOR_5,cb,out);
113 if (a == NULL) goto err;
115 BIO_puts(out,"\np =");
117 BIO_puts(out,"\ng =");
122 if (b == NULL) goto err;
126 if ((b->p == NULL) || (b->g == NULL)) goto err;
128 if (!DH_generate_key(a)) goto err;
129 BIO_puts(out,"pri 1=");
130 BN_print(out,a->priv_key);
131 BIO_puts(out,"\npub 1=");
132 BN_print(out,a->pub_key);
135 if (!DH_generate_key(b)) goto err;
136 BIO_puts(out,"pri 2=");
137 BN_print(out,b->priv_key);
138 BIO_puts(out,"\npub 2=");
139 BN_print(out,b->pub_key);
143 abuf=(unsigned char *)OPENSSL_malloc(alen);
144 aout=DH_compute_key(abuf,b->pub_key,a);
146 BIO_puts(out,"key1 =");
147 for (i=0; i<aout; i++)
149 sprintf(buf,"%02X",abuf[i]);
155 bbuf=(unsigned char *)OPENSSL_malloc(blen);
156 bout=DH_compute_key(bbuf,a->pub_key,b);
158 BIO_puts(out,"key2 =");
159 for (i=0; i<bout; i++)
161 sprintf(buf,"%02X",bbuf[i]);
165 if ((aout < 4) || (bout != aout) || (memcmp(abuf,bbuf,aout) != 0))
167 fprintf(stderr,"Error in DH routines\n");
173 if (abuf != NULL) OPENSSL_free(abuf);
174 if (bbuf != NULL) OPENSSL_free(bbuf);
175 if(b != NULL) DH_free(b);
176 if(a != NULL) DH_free(a);
182 static void MS_CALLBACK cb(int p, int n, void *arg)
190 BIO_write((BIO *)arg,&c,1);
191 (void)BIO_flush((BIO *)arg);