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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 | |
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