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.]
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>
72 int main(int argc
, char *argv
[])
74 printf("No DH support\n");
78 #include <openssl/dh.h>
80 #ifdef OPENSSL_SYS_WIN16
81 #define MS_CALLBACK _far _loadds
86 static void MS_CALLBACK
cb(int p
, int n
, void *arg
);
88 static const char rnd_seed
[] = "string to make the random number generator think it has entropy";
90 int main(int argc
, char *argv
[])
95 unsigned char *abuf
=NULL
,*bbuf
=NULL
;
96 int i
,alen
,blen
,aout
,bout
,ret
=1;
99 CRYPTO_malloc_debug_init();
100 CRYPTO_dbg_set_options(V_CRYPTO_MDEBUG_ALL
);
101 CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON
);
103 #ifdef OPENSSL_SYS_WIN32
104 CRYPTO_malloc_init();
107 RAND_seed(rnd_seed
, sizeof rnd_seed
);
109 out
=BIO_new(BIO_s_file());
110 if (out
== NULL
) EXIT(1);
111 BIO_set_fp(out
,stdout
,BIO_NOCLOSE
);
113 a
=DH_generate_parameters(64,DH_GENERATOR_5
,cb
,out
);
114 if (a
== NULL
) goto err
;
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");
126 BIO_puts(out
,"\np =");
128 BIO_puts(out
,"\ng =");
133 if (b
== NULL
) goto err
;
137 if ((b
->p
== NULL
) || (b
->g
== NULL
)) goto err
;
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
);
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
);
154 abuf
=(unsigned char *)OPENSSL_malloc(alen
);
155 aout
=DH_compute_key(abuf
,b
->pub_key
,a
);
157 BIO_puts(out
,"key1 =");
158 for (i
=0; i
<aout
; i
++)
160 sprintf(buf
,"%02X",abuf
[i
]);
166 bbuf
=(unsigned char *)OPENSSL_malloc(blen
);
167 bout
=DH_compute_key(bbuf
,a
->pub_key
,b
);
169 BIO_puts(out
,"key2 =");
170 for (i
=0; i
<bout
; i
++)
172 sprintf(buf
,"%02X",bbuf
[i
]);
176 if ((aout
< 4) || (bout
!= aout
) || (memcmp(abuf
,bbuf
,aout
) != 0))
178 fprintf(stderr
,"Error in DH routines\n");
184 ERR_print_errors_fp(stderr
);
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
);
191 CRYPTO_cleanup_all_ex_data();
193 CRYPTO_mem_leaks_fp(stderr
);
198 static void MS_CALLBACK
cb(int p
, int n
, void *arg
)
206 BIO_write((BIO
*)arg
,&c
,1);
207 (void)BIO_flush((BIO
*)arg
);