OLD | NEW |
| (Empty) |
1 /* apps/dh.c */ | |
2 /* obsoleted by dhparam.c */ | |
3 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | |
4 * All rights reserved. | |
5 * | |
6 * This package is an SSL implementation written | |
7 * by Eric Young (eay@cryptsoft.com). | |
8 * The implementation was written so as to conform with Netscapes SSL. | |
9 * | |
10 * This library is free for commercial and non-commercial use as long as | |
11 * the following conditions are aheared to. The following conditions | |
12 * apply to all code found in this distribution, be it the RC4, RSA, | |
13 * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
14 * included with this distribution is covered by the same copyright terms | |
15 * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
16 * | |
17 * Copyright remains Eric Young's, and as such any Copyright notices in | |
18 * the code are not to be removed. | |
19 * If this package is used in a product, Eric Young should be given attribution | |
20 * as the author of the parts of the library used. | |
21 * This can be in the form of a textual message at program startup or | |
22 * in documentation (online or textual) provided with the package. | |
23 * | |
24 * Redistribution and use in source and binary forms, with or without | |
25 * modification, are permitted provided that the following conditions | |
26 * are met: | |
27 * 1. Redistributions of source code must retain the copyright | |
28 * notice, this list of conditions and the following disclaimer. | |
29 * 2. Redistributions in binary form must reproduce the above copyright | |
30 * notice, this list of conditions and the following disclaimer in the | |
31 * documentation and/or other materials provided with the distribution. | |
32 * 3. All advertising materials mentioning features or use of this software | |
33 * must display the following acknowledgement: | |
34 * "This product includes cryptographic software written by | |
35 * Eric Young (eay@cryptsoft.com)" | |
36 * The word 'cryptographic' can be left out if the rouines from the library | |
37 * being used are not cryptographic related :-). | |
38 * 4. If you include any Windows specific code (or a derivative thereof) from | |
39 * the apps directory (application code) you must include an acknowledgement: | |
40 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
41 * | |
42 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | |
43 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
44 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
45 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
46 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
47 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
48 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
49 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
50 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
51 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
52 * SUCH DAMAGE. | |
53 * | |
54 * The licence and distribution terms for any publically available version or | |
55 * derivative of this code cannot be changed. i.e. this code cannot simply be | |
56 * copied and put under another distribution licence | |
57 * [including the GNU Public Licence.] | |
58 */ | |
59 | |
60 #include <openssl/opensslconf.h> /* for OPENSSL_NO_DH */ | |
61 #ifndef OPENSSL_NO_DH | |
62 #include <stdio.h> | |
63 #include <stdlib.h> | |
64 #include <time.h> | |
65 #include <string.h> | |
66 #include "apps.h" | |
67 #include <openssl/bio.h> | |
68 #include <openssl/err.h> | |
69 #include <openssl/bn.h> | |
70 #include <openssl/dh.h> | |
71 #include <openssl/x509.h> | |
72 #include <openssl/pem.h> | |
73 | |
74 #undef PROG | |
75 #define PROG dh_main | |
76 | |
77 /* -inform arg - input format - default PEM (DER or PEM) | |
78 * -outform arg - output format - default PEM | |
79 * -in arg - input file - default stdin | |
80 * -out arg - output file - default stdout | |
81 * -check - check the parameters are ok | |
82 * -noout | |
83 * -text | |
84 * -C | |
85 */ | |
86 | |
87 int MAIN(int, char **); | |
88 | |
89 int MAIN(int argc, char **argv) | |
90 { | |
91 DH *dh=NULL; | |
92 int i,badops=0,text=0; | |
93 BIO *in=NULL,*out=NULL; | |
94 int informat,outformat,check=0,noout=0,C=0,ret=1; | |
95 char *infile,*outfile,*prog; | |
96 #ifndef OPENSSL_NO_ENGINE | |
97 char *engine; | |
98 #endif | |
99 | |
100 apps_startup(); | |
101 | |
102 if (bio_err == NULL) | |
103 if ((bio_err=BIO_new(BIO_s_file())) != NULL) | |
104 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); | |
105 | |
106 if (!load_config(bio_err, NULL)) | |
107 goto end; | |
108 | |
109 #ifndef OPENSSL_NO_ENGINE | |
110 engine=NULL; | |
111 #endif | |
112 infile=NULL; | |
113 outfile=NULL; | |
114 informat=FORMAT_PEM; | |
115 outformat=FORMAT_PEM; | |
116 | |
117 prog=argv[0]; | |
118 argc--; | |
119 argv++; | |
120 while (argc >= 1) | |
121 { | |
122 if (strcmp(*argv,"-inform") == 0) | |
123 { | |
124 if (--argc < 1) goto bad; | |
125 informat=str2fmt(*(++argv)); | |
126 } | |
127 else if (strcmp(*argv,"-outform") == 0) | |
128 { | |
129 if (--argc < 1) goto bad; | |
130 outformat=str2fmt(*(++argv)); | |
131 } | |
132 else if (strcmp(*argv,"-in") == 0) | |
133 { | |
134 if (--argc < 1) goto bad; | |
135 infile= *(++argv); | |
136 } | |
137 else if (strcmp(*argv,"-out") == 0) | |
138 { | |
139 if (--argc < 1) goto bad; | |
140 outfile= *(++argv); | |
141 } | |
142 #ifndef OPENSSL_NO_ENGINE | |
143 else if (strcmp(*argv,"-engine") == 0) | |
144 { | |
145 if (--argc < 1) goto bad; | |
146 engine= *(++argv); | |
147 } | |
148 #endif | |
149 else if (strcmp(*argv,"-check") == 0) | |
150 check=1; | |
151 else if (strcmp(*argv,"-text") == 0) | |
152 text=1; | |
153 else if (strcmp(*argv,"-C") == 0) | |
154 C=1; | |
155 else if (strcmp(*argv,"-noout") == 0) | |
156 noout=1; | |
157 else | |
158 { | |
159 BIO_printf(bio_err,"unknown option %s\n",*argv); | |
160 badops=1; | |
161 break; | |
162 } | |
163 argc--; | |
164 argv++; | |
165 } | |
166 | |
167 if (badops) | |
168 { | |
169 bad: | |
170 BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog); | |
171 BIO_printf(bio_err,"where options are\n"); | |
172 BIO_printf(bio_err," -inform arg input format - one of DER PEM
\n"); | |
173 BIO_printf(bio_err," -outform arg output format - one of DER PE
M\n"); | |
174 BIO_printf(bio_err," -in arg input file\n"); | |
175 BIO_printf(bio_err," -out arg output file\n"); | |
176 BIO_printf(bio_err," -check check the DH parameters\n"); | |
177 BIO_printf(bio_err," -text print a text form of the DH p
arameters\n"); | |
178 BIO_printf(bio_err," -C Output C code\n"); | |
179 BIO_printf(bio_err," -noout no output\n"); | |
180 #ifndef OPENSSL_NO_ENGINE | |
181 BIO_printf(bio_err," -engine e use engine e, possibly a hard
ware device.\n"); | |
182 #endif | |
183 goto end; | |
184 } | |
185 | |
186 ERR_load_crypto_strings(); | |
187 | |
188 #ifndef OPENSSL_NO_ENGINE | |
189 setup_engine(bio_err, engine, 0); | |
190 #endif | |
191 | |
192 in=BIO_new(BIO_s_file()); | |
193 out=BIO_new(BIO_s_file()); | |
194 if ((in == NULL) || (out == NULL)) | |
195 { | |
196 ERR_print_errors(bio_err); | |
197 goto end; | |
198 } | |
199 | |
200 if (infile == NULL) | |
201 BIO_set_fp(in,stdin,BIO_NOCLOSE); | |
202 else | |
203 { | |
204 if (BIO_read_filename(in,infile) <= 0) | |
205 { | |
206 perror(infile); | |
207 goto end; | |
208 } | |
209 } | |
210 if (outfile == NULL) | |
211 { | |
212 BIO_set_fp(out,stdout,BIO_NOCLOSE); | |
213 #ifdef OPENSSL_SYS_VMS | |
214 { | |
215 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); | |
216 out = BIO_push(tmpbio, out); | |
217 } | |
218 #endif | |
219 } | |
220 else | |
221 { | |
222 if (BIO_write_filename(out,outfile) <= 0) | |
223 { | |
224 perror(outfile); | |
225 goto end; | |
226 } | |
227 } | |
228 | |
229 if (informat == FORMAT_ASN1) | |
230 dh=d2i_DHparams_bio(in,NULL); | |
231 else if (informat == FORMAT_PEM) | |
232 dh=PEM_read_bio_DHparams(in,NULL,NULL,NULL); | |
233 else | |
234 { | |
235 BIO_printf(bio_err,"bad input format specified\n"); | |
236 goto end; | |
237 } | |
238 if (dh == NULL) | |
239 { | |
240 BIO_printf(bio_err,"unable to load DH parameters\n"); | |
241 ERR_print_errors(bio_err); | |
242 goto end; | |
243 } | |
244 | |
245 | |
246 | |
247 if (text) | |
248 { | |
249 DHparams_print(out,dh); | |
250 #ifdef undef | |
251 printf("p="); | |
252 BN_print(stdout,dh->p); | |
253 printf("\ng="); | |
254 BN_print(stdout,dh->g); | |
255 printf("\n"); | |
256 if (dh->length != 0) | |
257 printf("recommended private length=%ld\n",dh->length); | |
258 #endif | |
259 } | |
260 | |
261 if (check) | |
262 { | |
263 if (!DH_check(dh,&i)) | |
264 { | |
265 ERR_print_errors(bio_err); | |
266 goto end; | |
267 } | |
268 if (i & DH_CHECK_P_NOT_PRIME) | |
269 printf("p value is not prime\n"); | |
270 if (i & DH_CHECK_P_NOT_SAFE_PRIME) | |
271 printf("p value is not a safe prime\n"); | |
272 if (i & DH_UNABLE_TO_CHECK_GENERATOR) | |
273 printf("unable to check the generator value\n"); | |
274 if (i & DH_NOT_SUITABLE_GENERATOR) | |
275 printf("the g value is not a generator\n"); | |
276 if (i == 0) | |
277 printf("DH parameters appear to be ok.\n"); | |
278 } | |
279 if (C) | |
280 { | |
281 unsigned char *data; | |
282 int len,l,bits; | |
283 | |
284 len=BN_num_bytes(dh->p); | |
285 bits=BN_num_bits(dh->p); | |
286 data=(unsigned char *)OPENSSL_malloc(len); | |
287 if (data == NULL) | |
288 { | |
289 perror("OPENSSL_malloc"); | |
290 goto end; | |
291 } | |
292 l=BN_bn2bin(dh->p,data); | |
293 printf("static unsigned char dh%d_p[]={",bits); | |
294 for (i=0; i<l; i++) | |
295 { | |
296 if ((i%12) == 0) printf("\n\t"); | |
297 printf("0x%02X,",data[i]); | |
298 } | |
299 printf("\n\t};\n"); | |
300 | |
301 l=BN_bn2bin(dh->g,data); | |
302 printf("static unsigned char dh%d_g[]={",bits); | |
303 for (i=0; i<l; i++) | |
304 { | |
305 if ((i%12) == 0) printf("\n\t"); | |
306 printf("0x%02X,",data[i]); | |
307 } | |
308 printf("\n\t};\n\n"); | |
309 | |
310 printf("DH *get_dh%d()\n\t{\n",bits); | |
311 printf("\tDH *dh;\n\n"); | |
312 printf("\tif ((dh=DH_new()) == NULL) return(NULL);\n"); | |
313 printf("\tdh->p=BN_bin2bn(dh%d_p,sizeof(dh%d_p),NULL);\n", | |
314 bits,bits); | |
315 printf("\tdh->g=BN_bin2bn(dh%d_g,sizeof(dh%d_g),NULL);\n", | |
316 bits,bits); | |
317 printf("\tif ((dh->p == NULL) || (dh->g == NULL))\n"); | |
318 printf("\t\treturn(NULL);\n"); | |
319 printf("\treturn(dh);\n\t}\n"); | |
320 OPENSSL_free(data); | |
321 } | |
322 | |
323 | |
324 if (!noout) | |
325 { | |
326 if (outformat == FORMAT_ASN1) | |
327 i=i2d_DHparams_bio(out,dh); | |
328 else if (outformat == FORMAT_PEM) | |
329 i=PEM_write_bio_DHparams(out,dh); | |
330 else { | |
331 BIO_printf(bio_err,"bad output format specified for outf
ile\n"); | |
332 goto end; | |
333 } | |
334 if (!i) | |
335 { | |
336 BIO_printf(bio_err,"unable to write DH parameters\n"); | |
337 ERR_print_errors(bio_err); | |
338 goto end; | |
339 } | |
340 } | |
341 ret=0; | |
342 end: | |
343 if (in != NULL) BIO_free(in); | |
344 if (out != NULL) BIO_free_all(out); | |
345 if (dh != NULL) DH_free(dh); | |
346 apps_shutdown(); | |
347 OPENSSL_EXIT(ret); | |
348 } | |
349 #else /* !OPENSSL_NO_DH */ | |
350 | |
351 # if PEDANTIC | |
352 static void *dummy=&dummy; | |
353 # endif | |
354 | |
355 #endif | |
OLD | NEW |