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Tomato 1.28
[tomato.git] / release / src / router / openssl / apps / dhparam.c
blob5f9b60148d6fb60610a7abaf887b2be721d137e6
1 /* apps/dhparam.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 * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
60 *
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
63 * are met:
64 *
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
67 *
68 * 2. Redistributions in binary form must reproduce the above copyright
69 * notice, this list of conditions and the following disclaimer in
70 * the documentation and/or other materials provided with the
71 * distribution.
72 *
73 * 3. All advertising materials mentioning features or use of this
74 * software must display the following acknowledgment:
75 * "This product includes software developed by the OpenSSL Project
76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77 *
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 * endorse or promote products derived from this software without
80 * prior written permission. For written permission, please contact
81 * openssl-core@openssl.org.
82 *
83 * 5. Products derived from this software may not be called "OpenSSL"
84 * nor may "OpenSSL" appear in their names without prior written
85 * permission of the OpenSSL Project.
86 *
87 * 6. Redistributions of any form whatsoever must retain the following
88 * acknowledgment:
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91 *
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
105 *
106 * This product includes cryptographic software written by Eric Young
107 * (eay@cryptsoft.com). This product includes software written by Tim
108 * Hudson (tjh@cryptsoft.com).
109 *
110 */
111
112 #ifndef NO_DH
113 #include <stdio.h>
114 #include <stdlib.h>
115 #include <time.h>
116 #include <string.h>
117 #include "apps.h"
118 #include <openssl/bio.h>
119 #include <openssl/err.h>
120 #include <openssl/bn.h>
121 #include <openssl/dh.h>
122 #include <openssl/x509.h>
123 #include <openssl/pem.h>
124
125 #ifndef NO_DSA
126 #include <openssl/dsa.h>
127 #endif
128
129 #undef PROG
130 #define PROG dhparam_main
131
132 #define DEFBITS 512
133
134 /* -inform arg - input format - default PEM (DER or PEM)
135 * -outform arg - output format - default PEM
136 * -in arg - input file - default stdin
137 * -out arg - output file - default stdout
138 * -dsaparam - read or generate DSA parameters, convert to DH
139 * -check - check the parameters are ok
140 * -noout
141 * -text
142 * -C
143 */
144
145 static void MS_CALLBACK dh_cb(int p, int n, void *arg);
146
147 int MAIN(int, char **);
148
149 int MAIN(int argc, char **argv)
150 {
151 DH *dh=NULL;
152 int i,badops=0,text=0;
153 #ifndef NO_DSA
154 int dsaparam=0;
155 #endif
156 BIO *in=NULL,*out=NULL;
157 int informat,outformat,check=0,noout=0,C=0,ret=1;
158 char *infile,*outfile,*prog;
159 char *inrand=NULL;
160 int num = 0, g = 0;
161
162 apps_startup();
163
164 if (bio_err == NULL)
165 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
166 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
167
168 infile=NULL;
169 outfile=NULL;
170 informat=FORMAT_PEM;
171 outformat=FORMAT_PEM;
172
173 prog=argv[0];
174 argc--;
175 argv++;
176 while (argc >= 1)
177 {
178 if (strcmp(*argv,"-inform") == 0)
179 {
180 if (--argc < 1) goto bad;
181 informat=str2fmt(*(++argv));
182 }
183 else if (strcmp(*argv,"-outform") == 0)
184 {
185 if (--argc < 1) goto bad;
186 outformat=str2fmt(*(++argv));
187 }
188 else if (strcmp(*argv,"-in") == 0)
189 {
190 if (--argc < 1) goto bad;
191 infile= *(++argv);
192 }
193 else if (strcmp(*argv,"-out") == 0)
194 {
195 if (--argc < 1) goto bad;
196 outfile= *(++argv);
197 }
198 else if (strcmp(*argv,"-check") == 0)
199 check=1;
200 else if (strcmp(*argv,"-text") == 0)
201 text=1;
202 #ifndef NO_DSA
203 else if (strcmp(*argv,"-dsaparam") == 0)
204 dsaparam=1;
205 #endif
206 else if (strcmp(*argv,"-C") == 0)
207 C=1;
208 else if (strcmp(*argv,"-noout") == 0)
209 noout=1;
210 else if (strcmp(*argv,"-2") == 0)
211 g=2;
212 else if (strcmp(*argv,"-5") == 0)
213 g=5;
214 else if (strcmp(*argv,"-rand") == 0)
215 {
216 if (--argc < 1) goto bad;
217 inrand= *(++argv);
218 }
219 else if (((sscanf(*argv,"%d",&num) == 0) || (num <= 0)))
220 goto bad;
221 argv++;
222 argc--;
223 }
224
225 if (badops)
226 {
227 bad:
228 BIO_printf(bio_err,"%s [options] [numbits]\n",prog);
229 BIO_printf(bio_err,"where options are\n");
230 BIO_printf(bio_err," -inform arg input format - one of DER PEM\n");
231 BIO_printf(bio_err," -outform arg output format - one of DER PEM\n");
232 BIO_printf(bio_err," -in arg input file\n");
233 BIO_printf(bio_err," -out arg output file\n");
234 #ifndef NO_DSA
235 BIO_printf(bio_err," -dsaparam read or generate DSA parameters, convert to DH\n");
236 #endif
237 BIO_printf(bio_err," -check check the DH parameters\n");
238 BIO_printf(bio_err," -text print a text form of the DH parameters\n");
239 BIO_printf(bio_err," -C Output C code\n");
240 BIO_printf(bio_err," -2 generate parameters using 2 as the generator value\n");
241 BIO_printf(bio_err," -5 generate parameters using 5 as the generator value\n");
242 BIO_printf(bio_err," numbits number of bits in to generate (default 512)\n");
243 BIO_printf(bio_err," -rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
244 BIO_printf(bio_err," - load the file (or the files in the directory) into\n");
245 BIO_printf(bio_err," the random number generator\n");
246 BIO_printf(bio_err," -noout no output\n");
247 goto end;
248 }
249
250 ERR_load_crypto_strings();
251
252 if (g && !num)
253 num = DEFBITS;
254
255 #ifndef NO_DSA
256 if (dsaparam)
257 {
258 if (g)
259 {
260 BIO_printf(bio_err, "generator may not be chosen for DSA parameters\n");
261 goto end;
262 }
263 }
264 else
265 #endif
266 {
267 /* DH parameters */
268 if (num && !g)
269 g = 2;
270 }
271
272 if(num) {
273
274 if (!app_RAND_load_file(NULL, bio_err, 1) && inrand == NULL)
275 {
276 BIO_printf(bio_err,"warning, not much extra random data, consider using the -rand option\n");
277 }
278 if (inrand != NULL)
279 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
280 app_RAND_load_files(inrand));
281
282 #ifndef NO_DSA
283 if (dsaparam)
284 {
285 DSA *dsa;
286
287 BIO_printf(bio_err,"Generating DSA parameters, %d bit long prime\n",num);
288 dsa = DSA_generate_parameters(num, NULL, 0, NULL, NULL, dh_cb, bio_err);
289 if (dsa == NULL)
290 {
291 ERR_print_errors(bio_err);
292 goto end;
293 }
294
295 dh = DSA_dup_DH(dsa);
296 DSA_free(dsa);
297 if (dh == NULL)
298 {
299 ERR_print_errors(bio_err);
300 goto end;
301 }
302 }
303 else
304 #endif
305 {
306 BIO_printf(bio_err,"Generating DH parameters, %d bit long safe prime, generator %d\n",num,g);
307 BIO_printf(bio_err,"This is going to take a long time\n");
308 dh=DH_generate_parameters(num,g,dh_cb,bio_err);
309
310 if (dh == NULL)
311 {
312 ERR_print_errors(bio_err);
313 goto end;
314 }
315 }
316
317 app_RAND_write_file(NULL, bio_err);
318 } else {
319
320 in=BIO_new(BIO_s_file());
321 if (in == NULL)
322 {
323 ERR_print_errors(bio_err);
324 goto end;
325 }
326 if (infile == NULL)
327 BIO_set_fp(in,stdin,BIO_NOCLOSE);
328 else
329 {
330 if (BIO_read_filename(in,infile) <= 0)
331 {
332 perror(infile);
333 goto end;
334 }
335 }
336
337 if (informat != FORMAT_ASN1 && informat != FORMAT_PEM)
338 {
339 BIO_printf(bio_err,"bad input format specified\n");
340 goto end;
341 }
342
343 #ifndef NO_DSA
344 if (dsaparam)
345 {
346 DSA *dsa;
347
348 if (informat == FORMAT_ASN1)
349 dsa=d2i_DSAparams_bio(in,NULL);
350 else /* informat == FORMAT_PEM */
351 dsa=PEM_read_bio_DSAparams(in,NULL,NULL,NULL);
352
353 if (dsa == NULL)
354 {
355 BIO_printf(bio_err,"unable to load DSA parameters\n");
356 ERR_print_errors(bio_err);
357 goto end;
358 }
359
360 dh = DSA_dup_DH(dsa);
361 DSA_free(dsa);
362 if (dh == NULL)
363 {
364 ERR_print_errors(bio_err);
365 goto end;
366 }
367 }
368 else
369 #endif
370 {
371 if (informat == FORMAT_ASN1)
372 dh=d2i_DHparams_bio(in,NULL);
373 else /* informat == FORMAT_PEM */
374 dh=PEM_read_bio_DHparams(in,NULL,NULL,NULL);
375
376 if (dh == NULL)
377 {
378 BIO_printf(bio_err,"unable to load DH parameters\n");
379 ERR_print_errors(bio_err);
380 goto end;
381 }
382 }
383
384 /* dh != NULL */
385 }
386
387 out=BIO_new(BIO_s_file());
388 if (out == NULL)
389 {
390 ERR_print_errors(bio_err);
391 goto end;
392 }
393 if (outfile == NULL)
394 {
395 BIO_set_fp(out,stdout,BIO_NOCLOSE);
396 #ifdef VMS
397 {
398 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
399 out = BIO_push(tmpbio, out);
400 }
401 #endif
402 }
403 else
404 {
405 if (BIO_write_filename(out,outfile) <= 0)
406 {
407 perror(outfile);
408 goto end;
409 }
410 }
411
412
413 if (text)
414 {
415 DHparams_print(out,dh);
416 }
417
418 if (check)
419 {
420 if (!DH_check(dh,&i))
421 {
422 ERR_print_errors(bio_err);
423 goto end;
424 }
425 if (i & DH_CHECK_P_NOT_PRIME)
426 printf("p value is not prime\n");
427 if (i & DH_CHECK_P_NOT_SAFE_PRIME)
428 printf("p value is not a safe prime\n");
429 if (i & DH_UNABLE_TO_CHECK_GENERATOR)
430 printf("unable to check the generator value\n");
431 if (i & DH_NOT_SUITABLE_GENERATOR)
432 printf("the g value is not a generator\n");
433 if (i == 0)
434 printf("DH parameters appear to be ok.\n");
435 }
436 if (C)
437 {
438 unsigned char *data;
439 int len,l,bits;
440
441 len=BN_num_bytes(dh->p);
442 bits=BN_num_bits(dh->p);
443 data=(unsigned char *)OPENSSL_malloc(len);
444 if (data == NULL)
445 {
446 perror("OPENSSL_malloc");
447 goto end;
448 }
449 printf("#ifndef HEADER_DH_H\n"
450 "#include <openssl/dh.h>\n"
451 "#endif\n");
452 printf("DH *get_dh%d()\n\t{\n",bits);
453
454 l=BN_bn2bin(dh->p,data);
455 printf("\tstatic unsigned char dh%d_p[]={",bits);
456 for (i=0; i<l; i++)
457 {
458 if ((i%12) == 0) printf("\n\t\t");
459 printf("0x%02X,",data[i]);
460 }
461 printf("\n\t\t};\n");
462
463 l=BN_bn2bin(dh->g,data);
464 printf("\tstatic unsigned char dh%d_g[]={",bits);
465 for (i=0; i<l; i++)
466 {
467 if ((i%12) == 0) printf("\n\t\t");
468 printf("0x%02X,",data[i]);
469 }
470 printf("\n\t\t};\n");
471
472 printf("\tDH *dh;\n\n");
473 printf("\tif ((dh=DH_new()) == NULL) return(NULL);\n");
474 printf("\tdh->p=BN_bin2bn(dh%d_p,sizeof(dh%d_p),NULL);\n",
475 bits,bits);
476 printf("\tdh->g=BN_bin2bn(dh%d_g,sizeof(dh%d_g),NULL);\n",
477 bits,bits);
478 printf("\tif ((dh->p == NULL) || (dh->g == NULL))\n");
479 printf("\t\t{ DH_free(dh); return(NULL); }\n");
480 if (dh->length)
481 printf("\tdh->length = %d;\n", dh->length);
482 printf("\treturn(dh);\n\t}\n");
483 OPENSSL_free(data);
484 }
485
486
487 if (!noout)
488 {
489 if (outformat == FORMAT_ASN1)
490 i=i2d_DHparams_bio(out,dh);
491 else if (outformat == FORMAT_PEM)
492 i=PEM_write_bio_DHparams(out,dh);
493 else {
494 BIO_printf(bio_err,"bad output format specified for outfile\n");
495 goto end;
496 }
497 if (!i)
498 {
499 BIO_printf(bio_err,"unable to write DH parameters\n");
500 ERR_print_errors(bio_err);
501 goto end;
502 }
503 }
504 ret=0;
505 end:
506 if (in != NULL) BIO_free(in);
507 if (out != NULL) BIO_free_all(out);
508 if (dh != NULL) DH_free(dh);
509 EXIT(ret);
510 }
511
512 /* dh_cb is identical to dsa_cb in apps/dsaparam.c */
513 static void MS_CALLBACK dh_cb(int p, int n, void *arg)
514 {
515 char c='*';
516
517 if (p == 0) c='.';
518 if (p == 1) c='+';
519 if (p == 2) c='*';
520 if (p == 3) c='\n';
521 BIO_write((BIO *)arg,&c,1);
522 (void)BIO_flush((BIO *)arg);
523 #ifdef LINT
524 p=n;
525 #endif
526 }
527
528 #endif
Tomato firmware and modifications.