source: EcnlProtoTool/trunk/openssl-1.1.0e/apps/dhparam.c@ 331

Last change on this file since 331 was 331, checked in by coas-nagasima, 6 years ago

prototoolに関連するプロジェクトをnewlibからmuslを使うよう変更・更新
ntshellをnewlibの下位の実装から、muslのsyscallの実装に変更・更新
以下のOSSをアップデート
・mruby-1.3.0
・musl-1.1.18
・onigmo-6.1.3
・tcc-0.9.27
以下のOSSを追加
・openssl-1.1.0e
・curl-7.57.0
・zlib-1.2.11
以下のmrbgemsを追加
・iij/mruby-digest
・iij/mruby-env
・iij/mruby-errno
・iij/mruby-iijson
・iij/mruby-ipaddr
・iij/mruby-mock
・iij/mruby-require
・iij/mruby-tls-openssl
  • Property svn:eol-style set to native
  • Property svn:mime-type set to text/x-csrc
File size: 11.3 KB
Line 
1/*
2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10#include <openssl/opensslconf.h>
11#ifdef OPENSSL_NO_DH
12NON_EMPTY_TRANSLATION_UNIT
13#else
14
15# include <stdio.h>
16# include <stdlib.h>
17# include <time.h>
18# include <string.h>
19# include "apps.h"
20# include <openssl/bio.h>
21# include <openssl/err.h>
22# include <openssl/bn.h>
23# include <openssl/dh.h>
24# include <openssl/x509.h>
25# include <openssl/pem.h>
26
27# ifndef OPENSSL_NO_DSA
28# include <openssl/dsa.h>
29# endif
30
31# define DEFBITS 2048
32
33static int dh_cb(int p, int n, BN_GENCB *cb);
34
35typedef enum OPTION_choice {
36 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
37 OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT,
38 OPT_ENGINE, OPT_CHECK, OPT_TEXT, OPT_NOOUT,
39 OPT_RAND, OPT_DSAPARAM, OPT_C, OPT_2, OPT_5
40} OPTION_CHOICE;
41
42OPTIONS dhparam_options[] = {
43 {OPT_HELP_STR, 1, '-', "Usage: %s [flags] [numbits]\n"},
44 {OPT_HELP_STR, 1, '-', "Valid options are:\n"},
45 {"help", OPT_HELP, '-', "Display this summary"},
46 {"in", OPT_IN, '<', "Input file"},
47 {"inform", OPT_INFORM, 'F', "Input format, DER or PEM"},
48 {"outform", OPT_OUTFORM, 'F', "Output format, DER or PEM"},
49 {"out", OPT_OUT, '>', "Output file"},
50 {"check", OPT_CHECK, '-', "Check the DH parameters"},
51 {"text", OPT_TEXT, '-', "Print a text form of the DH parameters"},
52 {"noout", OPT_NOOUT, '-', "Don't output any DH parameters"},
53 {"rand", OPT_RAND, 's',
54 "Load the file(s) into the random number generator"},
55 {"C", OPT_C, '-', "Print C code"},
56 {"2", OPT_2, '-', "Generate parameters using 2 as the generator value"},
57 {"5", OPT_5, '-', "Generate parameters using 5 as the generator value"},
58# ifndef OPENSSL_NO_DSA
59 {"dsaparam", OPT_DSAPARAM, '-',
60 "Read or generate DSA parameters, convert to DH"},
61# endif
62# ifndef OPENSSL_NO_ENGINE
63 {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
64# endif
65 {NULL}
66};
67
68int dhparam_main(int argc, char **argv)
69{
70 BIO *in = NULL, *out = NULL;
71 DH *dh = NULL;
72 char *infile = NULL, *outfile = NULL, *prog, *inrand = NULL;
73 ENGINE *e = NULL;
74#ifndef OPENSSL_NO_DSA
75 int dsaparam = 0;
76#endif
77 int i, text = 0, C = 0, ret = 1, num = 0, g = 0;
78 int informat = FORMAT_PEM, outformat = FORMAT_PEM, check = 0, noout = 0;
79 OPTION_CHOICE o;
80
81 prog = opt_init(argc, argv, dhparam_options);
82 while ((o = opt_next()) != OPT_EOF) {
83 switch (o) {
84 case OPT_EOF:
85 case OPT_ERR:
86 opthelp:
87 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
88 goto end;
89 case OPT_HELP:
90 opt_help(dhparam_options);
91 ret = 0;
92 goto end;
93 case OPT_INFORM:
94 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
95 goto opthelp;
96 break;
97 case OPT_OUTFORM:
98 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
99 goto opthelp;
100 break;
101 case OPT_IN:
102 infile = opt_arg();
103 break;
104 case OPT_OUT:
105 outfile = opt_arg();
106 break;
107 case OPT_ENGINE:
108 e = setup_engine(opt_arg(), 0);
109 break;
110 case OPT_CHECK:
111 check = 1;
112 break;
113 case OPT_TEXT:
114 text = 1;
115 break;
116 case OPT_DSAPARAM:
117#ifndef OPENSSL_NO_DSA
118 dsaparam = 1;
119#endif
120 break;
121 case OPT_C:
122 C = 1;
123 break;
124 case OPT_2:
125 g = 2;
126 break;
127 case OPT_5:
128 g = 5;
129 break;
130 case OPT_NOOUT:
131 noout = 1;
132 break;
133 case OPT_RAND:
134 inrand = opt_arg();
135 break;
136 }
137 }
138 argc = opt_num_rest();
139 argv = opt_rest();
140
141 if (argv[0] && (!opt_int(argv[0], &num) || num <= 0))
142 goto end;
143
144 if (g && !num)
145 num = DEFBITS;
146
147# ifndef OPENSSL_NO_DSA
148 if (dsaparam && g) {
149 BIO_printf(bio_err,
150 "generator may not be chosen for DSA parameters\n");
151 goto end;
152 }
153# endif
154 /* DH parameters */
155 if (num && !g)
156 g = 2;
157
158 if (num) {
159
160 BN_GENCB *cb;
161 cb = BN_GENCB_new();
162 if (cb == NULL) {
163 ERR_print_errors(bio_err);
164 goto end;
165 }
166
167 BN_GENCB_set(cb, dh_cb, bio_err);
168 if (!app_RAND_load_file(NULL, 1) && inrand == NULL) {
169 BIO_printf(bio_err,
170 "warning, not much extra random data, consider using the -rand option\n");
171 }
172 if (inrand != NULL)
173 BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
174 app_RAND_load_files(inrand));
175
176# ifndef OPENSSL_NO_DSA
177 if (dsaparam) {
178 DSA *dsa = DSA_new();
179
180 BIO_printf(bio_err,
181 "Generating DSA parameters, %d bit long prime\n", num);
182 if (dsa == NULL
183 || !DSA_generate_parameters_ex(dsa, num, NULL, 0, NULL, NULL,
184 cb)) {
185 DSA_free(dsa);
186 BN_GENCB_free(cb);
187 ERR_print_errors(bio_err);
188 goto end;
189 }
190
191 dh = DSA_dup_DH(dsa);
192 DSA_free(dsa);
193 if (dh == NULL) {
194 BN_GENCB_free(cb);
195 ERR_print_errors(bio_err);
196 goto end;
197 }
198 } else
199# endif
200 {
201 dh = DH_new();
202 BIO_printf(bio_err,
203 "Generating DH parameters, %d bit long safe prime, generator %d\n",
204 num, g);
205 BIO_printf(bio_err, "This is going to take a long time\n");
206 if (dh == NULL || !DH_generate_parameters_ex(dh, num, g, cb)) {
207 BN_GENCB_free(cb);
208 ERR_print_errors(bio_err);
209 goto end;
210 }
211 }
212
213 BN_GENCB_free(cb);
214 app_RAND_write_file(NULL);
215 } else {
216
217 in = bio_open_default(infile, 'r', informat);
218 if (in == NULL)
219 goto end;
220
221# ifndef OPENSSL_NO_DSA
222 if (dsaparam) {
223 DSA *dsa;
224
225 if (informat == FORMAT_ASN1)
226 dsa = d2i_DSAparams_bio(in, NULL);
227 else /* informat == FORMAT_PEM */
228 dsa = PEM_read_bio_DSAparams(in, NULL, NULL, NULL);
229
230 if (dsa == NULL) {
231 BIO_printf(bio_err, "unable to load DSA parameters\n");
232 ERR_print_errors(bio_err);
233 goto end;
234 }
235
236 dh = DSA_dup_DH(dsa);
237 DSA_free(dsa);
238 if (dh == NULL) {
239 ERR_print_errors(bio_err);
240 goto end;
241 }
242 } else
243# endif
244 {
245 if (informat == FORMAT_ASN1)
246 dh = d2i_DHparams_bio(in, NULL);
247 else /* informat == FORMAT_PEM */
248 dh = PEM_read_bio_DHparams(in, NULL, NULL, NULL);
249
250 if (dh == NULL) {
251 BIO_printf(bio_err, "unable to load DH parameters\n");
252 ERR_print_errors(bio_err);
253 goto end;
254 }
255 }
256
257 /* dh != NULL */
258 }
259
260 out = bio_open_default(outfile, 'w', outformat);
261 if (out == NULL)
262 goto end;
263
264 if (text) {
265 DHparams_print(out, dh);
266 }
267
268 if (check) {
269 if (!DH_check(dh, &i)) {
270 ERR_print_errors(bio_err);
271 goto end;
272 }
273 if (i & DH_CHECK_P_NOT_PRIME)
274 BIO_printf(bio_err, "WARNING: p value is not prime\n");
275 if (i & DH_CHECK_P_NOT_SAFE_PRIME)
276 BIO_printf(bio_err, "WARNING: p value is not a safe prime\n");
277 if (i & DH_CHECK_Q_NOT_PRIME)
278 BIO_printf(bio_err, "WARNING: q value is not a prime\n");
279 if (i & DH_CHECK_INVALID_Q_VALUE)
280 BIO_printf(bio_err, "WARNING: q value is invalid\n");
281 if (i & DH_CHECK_INVALID_J_VALUE)
282 BIO_printf(bio_err, "WARNING: j value is invalid\n");
283 if (i & DH_UNABLE_TO_CHECK_GENERATOR)
284 BIO_printf(bio_err,
285 "WARNING: unable to check the generator value\n");
286 if (i & DH_NOT_SUITABLE_GENERATOR)
287 BIO_printf(bio_err, "WARNING: the g value is not a generator\n");
288 if (i == 0)
289 BIO_printf(bio_err, "DH parameters appear to be ok.\n");
290 if (num != 0 && i != 0) {
291 /*
292 * We have generated parameters but DH_check() indicates they are
293 * invalid! This should never happen!
294 */
295 BIO_printf(bio_err, "ERROR: Invalid parameters generated\n");
296 goto end;
297 }
298 }
299 if (C) {
300 unsigned char *data;
301 int len, bits;
302 const BIGNUM *pbn, *gbn;
303
304 len = DH_size(dh);
305 bits = DH_bits(dh);
306 DH_get0_pqg(dh, &pbn, NULL, &gbn);
307 data = app_malloc(len, "print a BN");
308 BIO_printf(out, "#ifndef HEADER_DH_H\n"
309 "# include <openssl/dh.h>\n"
310 "#endif\n"
311 "\n");
312 BIO_printf(out, "DH *get_dh%d()\n{\n", bits);
313 print_bignum_var(out, pbn, "dhp", bits, data);
314 print_bignum_var(out, gbn, "dhg", bits, data);
315 BIO_printf(out, " DH *dh = DH_new();\n"
316 " BIGNUM *dhp_bn, *dhg_bn;\n"
317 "\n"
318 " if (dh == NULL)\n"
319 " return NULL;\n");
320 BIO_printf(out, " dhp_bn = BN_bin2bn(dhp_%d, sizeof (dhp_%d), NULL);\n",
321 bits, bits);
322 BIO_printf(out, " dhg_bn = BN_bin2bn(dhg_%d, sizeof (dhg_%d), NULL);\n",
323 bits, bits);
324 BIO_printf(out, " if (dhp_bn == NULL || dhg_bn == NULL\n"
325 " || !DH_set0_pqg(dh, dhp_bn, NULL, dhg_bn)) {\n"
326 " DH_free(dh);\n"
327 " BN_free(dhp_bn);\n"
328 " BN_free(dhg_bn);\n"
329 " return NULL;\n"
330 " }\n");
331 if (DH_get_length(dh) > 0)
332 BIO_printf(out,
333 " if (!DH_set_length(dh, %ld)) {\n"
334 " DH_free(dh);\n"
335 " }\n", DH_get_length(dh));
336 BIO_printf(out, " return dh;\n}\n");
337 OPENSSL_free(data);
338 }
339
340 if (!noout) {
341 const BIGNUM *q;
342 DH_get0_pqg(dh, NULL, &q, NULL);
343 if (outformat == FORMAT_ASN1)
344 i = i2d_DHparams_bio(out, dh);
345 else if (q != NULL)
346 i = PEM_write_bio_DHxparams(out, dh);
347 else
348 i = PEM_write_bio_DHparams(out, dh);
349 if (!i) {
350 BIO_printf(bio_err, "unable to write DH parameters\n");
351 ERR_print_errors(bio_err);
352 goto end;
353 }
354 }
355 ret = 0;
356 end:
357 BIO_free(in);
358 BIO_free_all(out);
359 DH_free(dh);
360 release_engine(e);
361 return (ret);
362}
363
364static int dh_cb(int p, int n, BN_GENCB *cb)
365{
366 char c = '*';
367
368 if (p == 0)
369 c = '.';
370 if (p == 1)
371 c = '+';
372 if (p == 2)
373 c = '*';
374 if (p == 3)
375 c = '\n';
376 BIO_write(BN_GENCB_get_arg(cb), &c, 1);
377 (void)BIO_flush(BN_GENCB_get_arg(cb));
378 return 1;
379}
380#endif
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