source: EcnlProtoTool/trunk/openssl-1.1.0e/apps/ecparam.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: 15.4 KB
Line 
1/*
2 * Copyright 2002-2016 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/* ====================================================================
11 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
12 *
13 * Portions of the attached software ("Contribution") are developed by
14 * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project.
15 *
16 * The Contribution is licensed pursuant to the OpenSSL open source
17 * license provided above.
18 *
19 * The elliptic curve binary polynomial software is originally written by
20 * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories.
21 *
22 */
23
24#include <openssl/opensslconf.h>
25#ifdef OPENSSL_NO_EC
26NON_EMPTY_TRANSLATION_UNIT
27#else
28
29# include <stdio.h>
30# include <stdlib.h>
31# include <time.h>
32# include <string.h>
33# include "apps.h"
34# include <openssl/bio.h>
35# include <openssl/err.h>
36# include <openssl/bn.h>
37# include <openssl/ec.h>
38# include <openssl/x509.h>
39# include <openssl/pem.h>
40
41typedef enum OPTION_choice {
42 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
43 OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_TEXT, OPT_C,
44 OPT_CHECK, OPT_LIST_CURVES, OPT_NO_SEED, OPT_NOOUT, OPT_NAME,
45 OPT_CONV_FORM, OPT_PARAM_ENC, OPT_GENKEY, OPT_RAND, OPT_ENGINE
46} OPTION_CHOICE;
47
48OPTIONS ecparam_options[] = {
49 {"help", OPT_HELP, '-', "Display this summary"},
50 {"inform", OPT_INFORM, 'F', "Input format - default PEM (DER or PEM)"},
51 {"outform", OPT_OUTFORM, 'F', "Output format - default PEM"},
52 {"in", OPT_IN, '<', "Input file - default stdin"},
53 {"out", OPT_OUT, '>', "Output file - default stdout"},
54 {"text", OPT_TEXT, '-', "Print the ec parameters in text form"},
55 {"C", OPT_C, '-', "Print a 'C' function creating the parameters"},
56 {"check", OPT_CHECK, '-', "Validate the ec parameters"},
57 {"list_curves", OPT_LIST_CURVES, '-',
58 "Prints a list of all curve 'short names'"},
59 {"no_seed", OPT_NO_SEED, '-',
60 "If 'explicit' parameters are chosen do not use the seed"},
61 {"noout", OPT_NOOUT, '-', "Do not print the ec parameter"},
62 {"name", OPT_NAME, 's',
63 "Use the ec parameters with specified 'short name'"},
64 {"conv_form", OPT_CONV_FORM, 's', "Specifies the point conversion form "},
65 {"param_enc", OPT_PARAM_ENC, 's',
66 "Specifies the way the ec parameters are encoded"},
67 {"genkey", OPT_GENKEY, '-', "Generate ec key"},
68 {"rand", OPT_RAND, 's', "Files to use for random number input"},
69# ifndef OPENSSL_NO_ENGINE
70 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
71# endif
72 {NULL}
73};
74
75static OPT_PAIR forms[] = {
76 {"compressed", POINT_CONVERSION_COMPRESSED},
77 {"uncompressed", POINT_CONVERSION_UNCOMPRESSED},
78 {"hybrid", POINT_CONVERSION_HYBRID},
79 {NULL}
80};
81
82static OPT_PAIR encodings[] = {
83 {"named_curve", OPENSSL_EC_NAMED_CURVE},
84 {"explicit", 0},
85 {NULL}
86};
87
88int ecparam_main(int argc, char **argv)
89{
90 ENGINE *e = NULL;
91 BIGNUM *ec_gen = NULL, *ec_order = NULL, *ec_cofactor = NULL;
92 BIGNUM *ec_p = NULL, *ec_a = NULL, *ec_b = NULL;
93 BIO *in = NULL, *out = NULL;
94 EC_GROUP *group = NULL;
95 point_conversion_form_t form = POINT_CONVERSION_UNCOMPRESSED;
96 char *curve_name = NULL, *inrand = NULL;
97 char *infile = NULL, *outfile = NULL, *prog;
98 unsigned char *buffer = NULL;
99 OPTION_CHOICE o;
100 int asn1_flag = OPENSSL_EC_NAMED_CURVE, new_asn1_flag = 0;
101 int informat = FORMAT_PEM, outformat = FORMAT_PEM, noout = 0, C = 0;
102 int ret = 1, private = 0;
103 int list_curves = 0, no_seed = 0, check = 0, new_form = 0;
104 int text = 0, i, need_rand = 0, genkey = 0;
105
106 prog = opt_init(argc, argv, ecparam_options);
107 while ((o = opt_next()) != OPT_EOF) {
108 switch (o) {
109 case OPT_EOF:
110 case OPT_ERR:
111 opthelp:
112 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
113 goto end;
114 case OPT_HELP:
115 opt_help(ecparam_options);
116 ret = 0;
117 goto end;
118 case OPT_INFORM:
119 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
120 goto opthelp;
121 break;
122 case OPT_IN:
123 infile = opt_arg();
124 break;
125 case OPT_OUTFORM:
126 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
127 goto opthelp;
128 break;
129 case OPT_OUT:
130 outfile = opt_arg();
131 break;
132 case OPT_TEXT:
133 text = 1;
134 break;
135 case OPT_C:
136 C = 1;
137 break;
138 case OPT_CHECK:
139 check = 1;
140 break;
141 case OPT_LIST_CURVES:
142 list_curves = 1;
143 break;
144 case OPT_NO_SEED:
145 no_seed = 1;
146 break;
147 case OPT_NOOUT:
148 noout = 1;
149 break;
150 case OPT_NAME:
151 curve_name = opt_arg();
152 break;
153 case OPT_CONV_FORM:
154 if (!opt_pair(opt_arg(), forms, &new_form))
155 goto opthelp;
156 form = new_form;
157 new_form = 1;
158 break;
159 case OPT_PARAM_ENC:
160 if (!opt_pair(opt_arg(), encodings, &asn1_flag))
161 goto opthelp;
162 new_asn1_flag = 1;
163 break;
164 case OPT_GENKEY:
165 genkey = need_rand = 1;
166 break;
167 case OPT_RAND:
168 inrand = opt_arg();
169 need_rand = 1;
170 break;
171 case OPT_ENGINE:
172 e = setup_engine(opt_arg(), 0);
173 break;
174 }
175 }
176 argc = opt_num_rest();
177 if (argc != 0)
178 goto opthelp;
179
180 private = genkey ? 1 : 0;
181
182 in = bio_open_default(infile, 'r', informat);
183 if (in == NULL)
184 goto end;
185 out = bio_open_owner(outfile, outformat, private);
186 if (out == NULL)
187 goto end;
188
189 if (list_curves) {
190 EC_builtin_curve *curves = NULL;
191 size_t crv_len = EC_get_builtin_curves(NULL, 0);
192 size_t n;
193
194 curves = app_malloc((int)sizeof(*curves) * crv_len, "list curves");
195 if (!EC_get_builtin_curves(curves, crv_len)) {
196 OPENSSL_free(curves);
197 goto end;
198 }
199
200 for (n = 0; n < crv_len; n++) {
201 const char *comment;
202 const char *sname;
203 comment = curves[n].comment;
204 sname = OBJ_nid2sn(curves[n].nid);
205 if (comment == NULL)
206 comment = "CURVE DESCRIPTION NOT AVAILABLE";
207 if (sname == NULL)
208 sname = "";
209
210 BIO_printf(out, " %-10s: ", sname);
211 BIO_printf(out, "%s\n", comment);
212 }
213
214 OPENSSL_free(curves);
215 ret = 0;
216 goto end;
217 }
218
219 if (curve_name != NULL) {
220 int nid;
221
222 /*
223 * workaround for the SECG curve names secp192r1 and secp256r1 (which
224 * are the same as the curves prime192v1 and prime256v1 defined in
225 * X9.62)
226 */
227 if (strcmp(curve_name, "secp192r1") == 0) {
228 BIO_printf(bio_err, "using curve name prime192v1 "
229 "instead of secp192r1\n");
230 nid = NID_X9_62_prime192v1;
231 } else if (strcmp(curve_name, "secp256r1") == 0) {
232 BIO_printf(bio_err, "using curve name prime256v1 "
233 "instead of secp256r1\n");
234 nid = NID_X9_62_prime256v1;
235 } else
236 nid = OBJ_sn2nid(curve_name);
237
238 if (nid == 0)
239 nid = EC_curve_nist2nid(curve_name);
240
241 if (nid == 0) {
242 BIO_printf(bio_err, "unknown curve name (%s)\n", curve_name);
243 goto end;
244 }
245
246 group = EC_GROUP_new_by_curve_name(nid);
247 if (group == NULL) {
248 BIO_printf(bio_err, "unable to create curve (%s)\n", curve_name);
249 goto end;
250 }
251 EC_GROUP_set_asn1_flag(group, asn1_flag);
252 EC_GROUP_set_point_conversion_form(group, form);
253 } else if (informat == FORMAT_ASN1)
254 group = d2i_ECPKParameters_bio(in, NULL);
255 else
256 group = PEM_read_bio_ECPKParameters(in, NULL, NULL, NULL);
257 if (group == NULL) {
258 BIO_printf(bio_err, "unable to load elliptic curve parameters\n");
259 ERR_print_errors(bio_err);
260 goto end;
261 }
262
263 if (new_form)
264 EC_GROUP_set_point_conversion_form(group, form);
265
266 if (new_asn1_flag)
267 EC_GROUP_set_asn1_flag(group, asn1_flag);
268
269 if (no_seed) {
270 EC_GROUP_set_seed(group, NULL, 0);
271 }
272
273 if (text) {
274 if (!ECPKParameters_print(out, group, 0))
275 goto end;
276 }
277
278 if (check) {
279 BIO_printf(bio_err, "checking elliptic curve parameters: ");
280 if (!EC_GROUP_check(group, NULL)) {
281 BIO_printf(bio_err, "failed\n");
282 ERR_print_errors(bio_err);
283 goto end;
284 }
285 BIO_printf(bio_err, "ok\n");
286
287 }
288
289 if (C) {
290 size_t buf_len = 0, tmp_len = 0;
291 const EC_POINT *point;
292 int is_prime, len = 0;
293 const EC_METHOD *meth = EC_GROUP_method_of(group);
294
295 if ((ec_p = BN_new()) == NULL
296 || (ec_a = BN_new()) == NULL
297 || (ec_b = BN_new()) == NULL
298 || (ec_gen = BN_new()) == NULL
299 || (ec_order = BN_new()) == NULL
300 || (ec_cofactor = BN_new()) == NULL) {
301 perror("Can't allocate BN");
302 goto end;
303 }
304
305 is_prime = (EC_METHOD_get_field_type(meth) == NID_X9_62_prime_field);
306 if (!is_prime) {
307 BIO_printf(bio_err, "Can only handle X9.62 prime fields\n");
308 goto end;
309 }
310
311 if (!EC_GROUP_get_curve_GFp(group, ec_p, ec_a, ec_b, NULL))
312 goto end;
313
314 if ((point = EC_GROUP_get0_generator(group)) == NULL)
315 goto end;
316 if (!EC_POINT_point2bn(group, point,
317 EC_GROUP_get_point_conversion_form(group),
318 ec_gen, NULL))
319 goto end;
320 if (!EC_GROUP_get_order(group, ec_order, NULL))
321 goto end;
322 if (!EC_GROUP_get_cofactor(group, ec_cofactor, NULL))
323 goto end;
324
325 if (!ec_p || !ec_a || !ec_b || !ec_gen || !ec_order || !ec_cofactor)
326 goto end;
327
328 len = BN_num_bits(ec_order);
329
330 if ((tmp_len = (size_t)BN_num_bytes(ec_p)) > buf_len)
331 buf_len = tmp_len;
332 if ((tmp_len = (size_t)BN_num_bytes(ec_a)) > buf_len)
333 buf_len = tmp_len;
334 if ((tmp_len = (size_t)BN_num_bytes(ec_b)) > buf_len)
335 buf_len = tmp_len;
336 if ((tmp_len = (size_t)BN_num_bytes(ec_gen)) > buf_len)
337 buf_len = tmp_len;
338 if ((tmp_len = (size_t)BN_num_bytes(ec_order)) > buf_len)
339 buf_len = tmp_len;
340 if ((tmp_len = (size_t)BN_num_bytes(ec_cofactor)) > buf_len)
341 buf_len = tmp_len;
342
343 buffer = app_malloc(buf_len, "BN buffer");
344
345 BIO_printf(out, "EC_GROUP *get_ec_group_%d(void)\n{\n", len);
346 print_bignum_var(out, ec_p, "ec_p", len, buffer);
347 print_bignum_var(out, ec_a, "ec_a", len, buffer);
348 print_bignum_var(out, ec_b, "ec_b", len, buffer);
349 print_bignum_var(out, ec_gen, "ec_gen", len, buffer);
350 print_bignum_var(out, ec_order, "ec_order", len, buffer);
351 print_bignum_var(out, ec_cofactor, "ec_cofactor", len, buffer);
352 BIO_printf(out, " int ok = 0;\n"
353 " EC_GROUP *group = NULL;\n"
354 " EC_POINT *point = NULL;\n"
355 " BIGNUM *tmp_1 = NULL;\n"
356 " BIGNUM *tmp_2 = NULL;\n"
357 " BIGNUM *tmp_3 = NULL;\n"
358 "\n");
359
360 BIO_printf(out, " if ((tmp_1 = BN_bin2bn(ec_p_%d, sizeof (ec_p_%d), NULL)) == NULL)\n"
361 " goto err;\n", len, len);
362 BIO_printf(out, " if ((tmp_2 = BN_bin2bn(ec_a_%d, sizeof (ec_a_%d), NULL)) == NULL)\n"
363 " goto err;\n", len, len);
364 BIO_printf(out, " if ((tmp_3 = BN_bin2bn(ec_b_%d, sizeof (ec_b_%d), NULL)) == NULL)\n"
365 " goto err;\n", len, len);
366 BIO_printf(out, " if ((group = EC_GROUP_new_curve_GFp(tmp_1, tmp_2, tmp_3, NULL)) == NULL)\n"
367 " goto err;\n"
368 "\n");
369 BIO_printf(out, " /* build generator */\n");
370 BIO_printf(out, " if ((tmp_1 = BN_bin2bn(ec_gen_%d, sizeof (ec_gen_%d), tmp_1)) == NULL)\n"
371 " goto err;\n", len, len);
372 BIO_printf(out, " point = EC_POINT_bn2point(group, tmp_1, NULL, NULL);\n");
373 BIO_printf(out, " if (point == NULL)\n"
374 " goto err;\n");
375 BIO_printf(out, " if ((tmp_2 = BN_bin2bn(ec_order_%d, sizeof (ec_order_%d), tmp_2)) == NULL)\n"
376 " goto err;\n", len, len);
377 BIO_printf(out, " if ((tmp_3 = BN_bin2bn(ec_cofactor_%d, sizeof (ec_cofactor_%d), tmp_3)) == NULL)\n"
378 " goto err;\n", len, len);
379 BIO_printf(out, " if (!EC_GROUP_set_generator(group, point, tmp_2, tmp_3))\n"
380 " goto err;\n"
381 "ok = 1;"
382 "\n");
383 BIO_printf(out, "err:\n"
384 " BN_free(tmp_1);\n"
385 " BN_free(tmp_2);\n"
386 " BN_free(tmp_3);\n"
387 " EC_POINT_free(point);\n"
388 " if (!ok) {\n"
389 " EC_GROUP_free(group);\n"
390 " return NULL;\n"
391 " }\n"
392 " return (group);\n"
393 "}\n");
394 }
395
396 if (!noout) {
397 if (outformat == FORMAT_ASN1)
398 i = i2d_ECPKParameters_bio(out, group);
399 else
400 i = PEM_write_bio_ECPKParameters(out, group);
401 if (!i) {
402 BIO_printf(bio_err, "unable to write elliptic "
403 "curve parameters\n");
404 ERR_print_errors(bio_err);
405 goto end;
406 }
407 }
408
409 if (need_rand) {
410 app_RAND_load_file(NULL, (inrand != NULL));
411 if (inrand != NULL)
412 BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
413 app_RAND_load_files(inrand));
414 }
415
416 if (genkey) {
417 EC_KEY *eckey = EC_KEY_new();
418
419 if (eckey == NULL)
420 goto end;
421
422 assert(need_rand);
423
424 if (EC_KEY_set_group(eckey, group) == 0) {
425 BIO_printf(bio_err, "unable to set group when generating key\n");
426 EC_KEY_free(eckey);
427 ERR_print_errors(bio_err);
428 goto end;
429 }
430
431 if (!EC_KEY_generate_key(eckey)) {
432 BIO_printf(bio_err, "unable to generate key\n");
433 EC_KEY_free(eckey);
434 ERR_print_errors(bio_err);
435 goto end;
436 }
437 assert(private);
438 if (outformat == FORMAT_ASN1)
439 i = i2d_ECPrivateKey_bio(out, eckey);
440 else
441 i = PEM_write_bio_ECPrivateKey(out, eckey, NULL,
442 NULL, 0, NULL, NULL);
443 EC_KEY_free(eckey);
444 }
445
446 if (need_rand)
447 app_RAND_write_file(NULL);
448
449 ret = 0;
450 end:
451 BN_free(ec_p);
452 BN_free(ec_a);
453 BN_free(ec_b);
454 BN_free(ec_gen);
455 BN_free(ec_order);
456 BN_free(ec_cofactor);
457 OPENSSL_free(buffer);
458 EC_GROUP_free(group);
459 release_engine(e);
460 BIO_free(in);
461 BIO_free_all(out);
462 return (ret);
463}
464
465#endif
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