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5dbd3efc | 1 | /* apps/ecparam.c */ |
14a7cfb3 | 2 | /* |
7eb18f12 | 3 | * Written by Nils Larsch for the OpenSSL project. |
14a7cfb3 | 4 | */ |
5dbd3efc | 5 | /* ==================================================================== |
9dd84053 | 6 | * Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved. |
5dbd3efc BM |
7 | * |
8 | * Redistribution and use in source and binary forms, with or without | |
9 | * modification, are permitted provided that the following conditions | |
10 | * are met: | |
11 | * | |
12 | * 1. Redistributions of source code must retain the above copyright | |
10621efd | 13 | * notice, this list of conditions and the following disclaimer. |
5dbd3efc BM |
14 | * |
15 | * 2. Redistributions in binary form must reproduce the above copyright | |
16 | * notice, this list of conditions and the following disclaimer in | |
17 | * the documentation and/or other materials provided with the | |
18 | * distribution. | |
19 | * | |
20 | * 3. All advertising materials mentioning features or use of this | |
21 | * software must display the following acknowledgment: | |
22 | * "This product includes software developed by the OpenSSL Project | |
23 | * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" | |
24 | * | |
25 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
26 | * endorse or promote products derived from this software without | |
27 | * prior written permission. For written permission, please contact | |
28 | * openssl-core@openssl.org. | |
29 | * | |
30 | * 5. Products derived from this software may not be called "OpenSSL" | |
31 | * nor may "OpenSSL" appear in their names without prior written | |
32 | * permission of the OpenSSL Project. | |
33 | * | |
34 | * 6. Redistributions of any form whatsoever must retain the following | |
35 | * acknowledgment: | |
36 | * "This product includes software developed by the OpenSSL Project | |
37 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)" | |
38 | * | |
39 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
40 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
41 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
42 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
43 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
44 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
45 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
46 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
48 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
49 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
50 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
51 | * ==================================================================== | |
52 | * | |
53 | * This product includes cryptographic software written by Eric Young | |
54 | * (eay@cryptsoft.com). This product includes software written by Tim | |
55 | * Hudson (tjh@cryptsoft.com). | |
56 | * | |
57 | */ | |
714df32e BM |
58 | /* ==================================================================== |
59 | * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. | |
60 | * | |
10621efd | 61 | * Portions of the attached software ("Contribution") are developed by |
714df32e BM |
62 | * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project. |
63 | * | |
64 | * The Contribution is licensed pursuant to the OpenSSL open source | |
65 | * license provided above. | |
66 | * | |
10621efd | 67 | * The elliptic curve binary polynomial software is originally written by |
714df32e BM |
68 | * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories. |
69 | * | |
70 | */ | |
6e04afb8 NL |
71 | |
72 | #include <openssl/opensslconf.h> | |
14a7cfb3 | 73 | #ifndef OPENSSL_NO_EC |
10621efd MC |
74 | # include <assert.h> |
75 | # include <stdio.h> | |
76 | # include <stdlib.h> | |
77 | # include <time.h> | |
78 | # include <string.h> | |
79 | # include "apps.h" | |
80 | # include <openssl/bio.h> | |
81 | # include <openssl/err.h> | |
82 | # include <openssl/bn.h> | |
83 | # include <openssl/ec.h> | |
84 | # include <openssl/x509.h> | |
85 | # include <openssl/pem.h> | |
86 | ||
87 | # undef PROG | |
88 | # define PROG ecparam_main | |
5dbd3efc | 89 | |
3e9a08ec TH |
90 | /*- |
91 | * -inform arg - input format - default PEM (DER or PEM) | |
e2aeb817 BM |
92 | * -outform arg - output format - default PEM |
93 | * -in arg - input file - default stdin | |
94 | * -out arg - output file - default stdout | |
95 | * -noout - do not print the ec parameter | |
96 | * -text - print the ec parameters in text form | |
97 | * -check - validate the ec parameters | |
98 | * -C - print a 'C' function creating the parameters | |
99 | * -name arg - use the ec parameters with 'short name' name | |
100 | * -list_curves - prints a list of all currently available curve 'short names' | |
10621efd | 101 | * -conv_form arg - specifies the point conversion form |
e2aeb817 BM |
102 | * - possible values: compressed |
103 | * uncompressed (default) | |
104 | * hybrid | |
105 | * -param_enc arg - specifies the way the ec parameters are encoded | |
106 | * in the asn1 der encoding | |
107 | * possible values: named_curve (default) | |
108 | * explicit | |
040ed7b4 | 109 | * -no_seed - if 'explicit' parameters are chosen do not use the seed |
e2aeb817 BM |
110 | * -genkey - generate ec key |
111 | * -rand file - files to use for random number input | |
112 | * -engine e - use engine e, possibly a hardware device | |
5dbd3efc BM |
113 | */ |
114 | ||
10621efd MC |
115 | static int ecparam_print_var(BIO *, BIGNUM *, const char *, int, |
116 | unsigned char *); | |
5dbd3efc BM |
117 | |
118 | int MAIN(int, char **); | |
119 | ||
120 | int MAIN(int argc, char **argv) | |
10621efd MC |
121 | { |
122 | EC_GROUP *group = NULL; | |
123 | point_conversion_form_t form = POINT_CONVERSION_UNCOMPRESSED; | |
124 | int new_form = 0; | |
125 | int asn1_flag = OPENSSL_EC_NAMED_CURVE; | |
126 | int new_asn1_flag = 0; | |
127 | char *curve_name = NULL, *inrand = NULL; | |
128 | int list_curves = 0, no_seed = 0, check = 0, | |
129 | badops = 0, text = 0, i, need_rand = 0, genkey = 0; | |
130 | char *infile = NULL, *outfile = NULL, *prog; | |
131 | BIO *in = NULL, *out = NULL; | |
132 | int informat, outformat, noout = 0, C = 0, ret = 1; | |
133 | char *engine = NULL; | |
134 | ||
135 | BIGNUM *ec_p = NULL, *ec_a = NULL, *ec_b = NULL, | |
136 | *ec_gen = NULL, *ec_order = NULL, *ec_cofactor = NULL; | |
137 | unsigned char *buffer = NULL; | |
138 | ||
139 | apps_startup(); | |
140 | ||
141 | if (bio_err == NULL) | |
142 | if ((bio_err = BIO_new(BIO_s_file())) != NULL) | |
143 | BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT); | |
144 | ||
145 | if (!load_config(bio_err, NULL)) | |
146 | goto end; | |
147 | ||
148 | informat = FORMAT_PEM; | |
149 | outformat = FORMAT_PEM; | |
150 | ||
151 | prog = argv[0]; | |
152 | argc--; | |
153 | argv++; | |
154 | while (argc >= 1) { | |
155 | if (strcmp(*argv, "-inform") == 0) { | |
156 | if (--argc < 1) | |
157 | goto bad; | |
158 | informat = str2fmt(*(++argv)); | |
159 | } else if (strcmp(*argv, "-outform") == 0) { | |
160 | if (--argc < 1) | |
161 | goto bad; | |
162 | outformat = str2fmt(*(++argv)); | |
163 | } else if (strcmp(*argv, "-in") == 0) { | |
164 | if (--argc < 1) | |
165 | goto bad; | |
166 | infile = *(++argv); | |
167 | } else if (strcmp(*argv, "-out") == 0) { | |
168 | if (--argc < 1) | |
169 | goto bad; | |
170 | outfile = *(++argv); | |
171 | } else if (strcmp(*argv, "-text") == 0) | |
172 | text = 1; | |
173 | else if (strcmp(*argv, "-C") == 0) | |
174 | C = 1; | |
175 | else if (strcmp(*argv, "-check") == 0) | |
176 | check = 1; | |
177 | else if (strcmp(*argv, "-name") == 0) { | |
178 | if (--argc < 1) | |
179 | goto bad; | |
180 | curve_name = *(++argv); | |
181 | } else if (strcmp(*argv, "-list_curves") == 0) | |
182 | list_curves = 1; | |
183 | else if (strcmp(*argv, "-conv_form") == 0) { | |
184 | if (--argc < 1) | |
185 | goto bad; | |
186 | ++argv; | |
187 | new_form = 1; | |
188 | if (strcmp(*argv, "compressed") == 0) | |
189 | form = POINT_CONVERSION_COMPRESSED; | |
190 | else if (strcmp(*argv, "uncompressed") == 0) | |
191 | form = POINT_CONVERSION_UNCOMPRESSED; | |
192 | else if (strcmp(*argv, "hybrid") == 0) | |
193 | form = POINT_CONVERSION_HYBRID; | |
194 | else | |
195 | goto bad; | |
196 | } else if (strcmp(*argv, "-param_enc") == 0) { | |
197 | if (--argc < 1) | |
198 | goto bad; | |
199 | ++argv; | |
200 | new_asn1_flag = 1; | |
201 | if (strcmp(*argv, "named_curve") == 0) | |
202 | asn1_flag = OPENSSL_EC_NAMED_CURVE; | |
203 | else if (strcmp(*argv, "explicit") == 0) | |
204 | asn1_flag = 0; | |
205 | else | |
206 | goto bad; | |
207 | } else if (strcmp(*argv, "-no_seed") == 0) | |
208 | no_seed = 1; | |
209 | else if (strcmp(*argv, "-noout") == 0) | |
210 | noout = 1; | |
211 | else if (strcmp(*argv, "-genkey") == 0) { | |
212 | genkey = 1; | |
213 | need_rand = 1; | |
214 | } else if (strcmp(*argv, "-rand") == 0) { | |
215 | if (--argc < 1) | |
216 | goto bad; | |
217 | inrand = *(++argv); | |
218 | need_rand = 1; | |
219 | } else if (strcmp(*argv, "-engine") == 0) { | |
220 | if (--argc < 1) | |
221 | goto bad; | |
222 | engine = *(++argv); | |
223 | } else { | |
224 | BIO_printf(bio_err, "unknown option %s\n", *argv); | |
225 | badops = 1; | |
226 | break; | |
227 | } | |
228 | argc--; | |
229 | argv++; | |
230 | } | |
231 | ||
232 | if (badops) { | |
233 | bad: | |
234 | BIO_printf(bio_err, "%s [options] <infile >outfile\n", prog); | |
235 | BIO_printf(bio_err, "where options are\n"); | |
236 | BIO_printf(bio_err, " -inform arg input format - " | |
237 | "default PEM (DER or PEM)\n"); | |
238 | BIO_printf(bio_err, " -outform arg output format - " | |
239 | "default PEM\n"); | |
240 | BIO_printf(bio_err, " -in arg input file - " | |
241 | "default stdin\n"); | |
242 | BIO_printf(bio_err, " -out arg output file - " | |
243 | "default stdout\n"); | |
244 | BIO_printf(bio_err, " -noout do not print the " | |
245 | "ec parameter\n"); | |
246 | BIO_printf(bio_err, " -text print the ec " | |
247 | "parameters in text form\n"); | |
248 | BIO_printf(bio_err, " -check validate the ec " | |
249 | "parameters\n"); | |
250 | BIO_printf(bio_err, " -C print a 'C' " | |
251 | "function creating the parameters\n"); | |
252 | BIO_printf(bio_err, " -name arg use the " | |
253 | "ec parameters with 'short name' name\n"); | |
254 | BIO_printf(bio_err, " -list_curves prints a list of " | |
255 | "all currently available curve 'short names'\n"); | |
256 | BIO_printf(bio_err, " -conv_form arg specifies the " | |
257 | "point conversion form \n"); | |
258 | BIO_printf(bio_err, " possible values:" | |
259 | " compressed\n"); | |
260 | BIO_printf(bio_err, " " | |
261 | " uncompressed (default)\n"); | |
262 | BIO_printf(bio_err, " " | |
263 | " hybrid\n"); | |
264 | BIO_printf(bio_err, " -param_enc arg specifies the way" | |
265 | " the ec parameters are encoded\n"); | |
266 | BIO_printf(bio_err, " in the asn1 der " | |
267 | "encoding\n"); | |
268 | BIO_printf(bio_err, " possible values:" | |
269 | " named_curve (default)\n"); | |
270 | BIO_printf(bio_err, " " | |
271 | " explicit\n"); | |
272 | BIO_printf(bio_err, " -no_seed if 'explicit'" | |
273 | " parameters are chosen do not" " use the seed\n"); | |
274 | BIO_printf(bio_err, " -genkey generate ec" " key\n"); | |
275 | BIO_printf(bio_err, " -rand file files to use for" | |
276 | " random number input\n"); | |
277 | BIO_printf(bio_err, " -engine e use engine e, " | |
278 | "possibly a hardware device\n"); | |
279 | goto end; | |
280 | } | |
281 | ||
282 | ERR_load_crypto_strings(); | |
283 | ||
284 | in = BIO_new(BIO_s_file()); | |
285 | out = BIO_new(BIO_s_file()); | |
286 | if ((in == NULL) || (out == NULL)) { | |
287 | ERR_print_errors(bio_err); | |
288 | goto end; | |
289 | } | |
290 | ||
291 | if (infile == NULL) | |
292 | BIO_set_fp(in, stdin, BIO_NOCLOSE); | |
293 | else { | |
294 | if (BIO_read_filename(in, infile) <= 0) { | |
295 | perror(infile); | |
296 | goto end; | |
297 | } | |
298 | } | |
299 | if (outfile == NULL) { | |
300 | BIO_set_fp(out, stdout, BIO_NOCLOSE); | |
301 | # ifdef OPENSSL_SYS_VMS | |
302 | { | |
303 | BIO *tmpbio = BIO_new(BIO_f_linebuffer()); | |
304 | out = BIO_push(tmpbio, out); | |
305 | } | |
306 | # endif | |
307 | } else { | |
308 | if (BIO_write_filename(out, outfile) <= 0) { | |
309 | perror(outfile); | |
310 | goto end; | |
311 | } | |
312 | } | |
313 | ||
314 | # ifndef OPENSSL_NO_ENGINE | |
315 | setup_engine(bio_err, engine, 0); | |
316 | # endif | |
5dbd3efc | 317 | |
10621efd MC |
318 | if (list_curves) { |
319 | EC_builtin_curve *curves = NULL; | |
320 | size_t crv_len = 0; | |
321 | size_t n = 0; | |
322 | ||
323 | crv_len = EC_get_builtin_curves(NULL, 0); | |
324 | ||
325 | curves = OPENSSL_malloc((int)(sizeof(EC_builtin_curve) * crv_len)); | |
326 | ||
327 | if (curves == NULL) | |
328 | goto end; | |
329 | ||
330 | if (!EC_get_builtin_curves(curves, crv_len)) { | |
331 | OPENSSL_free(curves); | |
332 | goto end; | |
333 | } | |
334 | ||
335 | for (n = 0; n < crv_len; n++) { | |
336 | const char *comment; | |
337 | const char *sname; | |
338 | comment = curves[n].comment; | |
339 | sname = OBJ_nid2sn(curves[n].nid); | |
340 | if (comment == NULL) | |
341 | comment = "CURVE DESCRIPTION NOT AVAILABLE"; | |
342 | if (sname == NULL) | |
343 | sname = ""; | |
344 | ||
345 | BIO_printf(out, " %-10s: ", sname); | |
346 | BIO_printf(out, "%s\n", comment); | |
347 | } | |
348 | ||
349 | OPENSSL_free(curves); | |
350 | ret = 0; | |
351 | goto end; | |
352 | } | |
353 | ||
354 | if (curve_name != NULL) { | |
355 | int nid; | |
356 | ||
357 | /* | |
358 | * workaround for the SECG curve names secp192r1 and secp256r1 (which | |
359 | * are the same as the curves prime192v1 and prime256v1 defined in | |
360 | * X9.62) | |
361 | */ | |
362 | if (!strcmp(curve_name, "secp192r1")) { | |
363 | BIO_printf(bio_err, "using curve name prime192v1 " | |
364 | "instead of secp192r1\n"); | |
365 | nid = NID_X9_62_prime192v1; | |
366 | } else if (!strcmp(curve_name, "secp256r1")) { | |
367 | BIO_printf(bio_err, "using curve name prime256v1 " | |
368 | "instead of secp256r1\n"); | |
369 | nid = NID_X9_62_prime256v1; | |
370 | } else | |
371 | nid = OBJ_sn2nid(curve_name); | |
372 | ||
373 | if (nid == 0) { | |
374 | BIO_printf(bio_err, "unknown curve name (%s)\n", curve_name); | |
375 | goto end; | |
376 | } | |
377 | ||
378 | group = EC_GROUP_new_by_curve_name(nid); | |
379 | if (group == NULL) { | |
380 | BIO_printf(bio_err, "unable to create curve (%s)\n", curve_name); | |
381 | goto end; | |
382 | } | |
383 | EC_GROUP_set_asn1_flag(group, asn1_flag); | |
384 | EC_GROUP_set_point_conversion_form(group, form); | |
385 | } else if (informat == FORMAT_ASN1) { | |
386 | group = d2i_ECPKParameters_bio(in, NULL); | |
387 | } else if (informat == FORMAT_PEM) { | |
388 | group = PEM_read_bio_ECPKParameters(in, NULL, NULL, NULL); | |
389 | } else { | |
390 | BIO_printf(bio_err, "bad input format specified\n"); | |
391 | goto end; | |
392 | } | |
393 | ||
394 | if (group == NULL) { | |
395 | BIO_printf(bio_err, "unable to load elliptic curve parameters\n"); | |
396 | ERR_print_errors(bio_err); | |
397 | goto end; | |
398 | } | |
399 | ||
400 | if (new_form) | |
401 | EC_GROUP_set_point_conversion_form(group, form); | |
402 | ||
403 | if (new_asn1_flag) | |
404 | EC_GROUP_set_asn1_flag(group, asn1_flag); | |
405 | ||
406 | if (no_seed) { | |
407 | EC_GROUP_set_seed(group, NULL, 0); | |
408 | } | |
409 | ||
410 | if (text) { | |
411 | if (!ECPKParameters_print(out, group, 0)) | |
412 | goto end; | |
413 | } | |
414 | ||
415 | if (check) { | |
10621efd MC |
416 | BIO_printf(bio_err, "checking elliptic curve parameters: "); |
417 | if (!EC_GROUP_check(group, NULL)) { | |
418 | BIO_printf(bio_err, "failed\n"); | |
419 | ERR_print_errors(bio_err); | |
b5e972fd PW |
420 | goto end; |
421 | } | |
422 | BIO_printf(bio_err, "ok\n"); | |
10621efd MC |
423 | |
424 | } | |
425 | ||
426 | if (C) { | |
427 | size_t buf_len = 0, tmp_len = 0; | |
428 | const EC_POINT *point; | |
429 | int is_prime, len = 0; | |
430 | const EC_METHOD *meth = EC_GROUP_method_of(group); | |
431 | ||
432 | if ((ec_p = BN_new()) == NULL || (ec_a = BN_new()) == NULL || | |
433 | (ec_b = BN_new()) == NULL || (ec_gen = BN_new()) == NULL || | |
434 | (ec_order = BN_new()) == NULL || | |
435 | (ec_cofactor = BN_new()) == NULL) { | |
436 | perror("OPENSSL_malloc"); | |
437 | goto end; | |
438 | } | |
439 | ||
440 | is_prime = (EC_METHOD_get_field_type(meth) == NID_X9_62_prime_field); | |
441 | ||
442 | if (is_prime) { | |
443 | if (!EC_GROUP_get_curve_GFp(group, ec_p, ec_a, ec_b, NULL)) | |
444 | goto end; | |
445 | } else { | |
446 | /* TODO */ | |
447 | goto end; | |
448 | } | |
449 | ||
450 | if ((point = EC_GROUP_get0_generator(group)) == NULL) | |
451 | goto end; | |
452 | if (!EC_POINT_point2bn(group, point, | |
453 | EC_GROUP_get_point_conversion_form(group), | |
454 | ec_gen, NULL)) | |
455 | goto end; | |
456 | if (!EC_GROUP_get_order(group, ec_order, NULL)) | |
457 | goto end; | |
458 | if (!EC_GROUP_get_cofactor(group, ec_cofactor, NULL)) | |
459 | goto end; | |
460 | ||
461 | if (!ec_p || !ec_a || !ec_b || !ec_gen || !ec_order || !ec_cofactor) | |
462 | goto end; | |
463 | ||
464 | len = BN_num_bits(ec_order); | |
465 | ||
466 | if ((tmp_len = (size_t)BN_num_bytes(ec_p)) > buf_len) | |
467 | buf_len = tmp_len; | |
468 | if ((tmp_len = (size_t)BN_num_bytes(ec_a)) > buf_len) | |
469 | buf_len = tmp_len; | |
470 | if ((tmp_len = (size_t)BN_num_bytes(ec_b)) > buf_len) | |
471 | buf_len = tmp_len; | |
472 | if ((tmp_len = (size_t)BN_num_bytes(ec_gen)) > buf_len) | |
473 | buf_len = tmp_len; | |
474 | if ((tmp_len = (size_t)BN_num_bytes(ec_order)) > buf_len) | |
475 | buf_len = tmp_len; | |
476 | if ((tmp_len = (size_t)BN_num_bytes(ec_cofactor)) > buf_len) | |
477 | buf_len = tmp_len; | |
478 | ||
479 | buffer = (unsigned char *)OPENSSL_malloc(buf_len); | |
480 | ||
481 | if (buffer == NULL) { | |
482 | perror("OPENSSL_malloc"); | |
483 | goto end; | |
484 | } | |
485 | ||
486 | ecparam_print_var(out, ec_p, "ec_p", len, buffer); | |
487 | ecparam_print_var(out, ec_a, "ec_a", len, buffer); | |
488 | ecparam_print_var(out, ec_b, "ec_b", len, buffer); | |
489 | ecparam_print_var(out, ec_gen, "ec_gen", len, buffer); | |
490 | ecparam_print_var(out, ec_order, "ec_order", len, buffer); | |
491 | ecparam_print_var(out, ec_cofactor, "ec_cofactor", len, buffer); | |
492 | ||
493 | BIO_printf(out, "\n\n"); | |
494 | ||
495 | BIO_printf(out, "EC_GROUP *get_ec_group_%d(void)\n\t{\n", len); | |
496 | BIO_printf(out, "\tint ok=0;\n"); | |
497 | BIO_printf(out, "\tEC_GROUP *group = NULL;\n"); | |
498 | BIO_printf(out, "\tEC_POINT *point = NULL;\n"); | |
499 | BIO_printf(out, "\tBIGNUM *tmp_1 = NULL, *tmp_2 = NULL, " | |
500 | "*tmp_3 = NULL;\n\n"); | |
501 | BIO_printf(out, "\tif ((tmp_1 = BN_bin2bn(ec_p_%d, " | |
502 | "sizeof(ec_p_%d), NULL)) == NULL)\n\t\t" | |
503 | "goto err;\n", len, len); | |
504 | BIO_printf(out, "\tif ((tmp_2 = BN_bin2bn(ec_a_%d, " | |
505 | "sizeof(ec_a_%d), NULL)) == NULL)\n\t\t" | |
506 | "goto err;\n", len, len); | |
507 | BIO_printf(out, "\tif ((tmp_3 = BN_bin2bn(ec_b_%d, " | |
508 | "sizeof(ec_b_%d), NULL)) == NULL)\n\t\t" | |
509 | "goto err;\n", len, len); | |
510 | if (is_prime) { | |
511 | BIO_printf(out, "\tif ((group = EC_GROUP_new_curve_" | |
512 | "GFp(tmp_1, tmp_2, tmp_3, NULL)) == NULL)" | |
513 | "\n\t\tgoto err;\n\n"); | |
514 | } else { | |
515 | /* TODO */ | |
516 | goto end; | |
517 | } | |
518 | BIO_printf(out, "\t/* build generator */\n"); | |
519 | BIO_printf(out, "\tif ((tmp_1 = BN_bin2bn(ec_gen_%d, " | |
520 | "sizeof(ec_gen_%d), tmp_1)) == NULL)" | |
521 | "\n\t\tgoto err;\n", len, len); | |
522 | BIO_printf(out, "\tpoint = EC_POINT_bn2point(group, tmp_1, " | |
523 | "NULL, NULL);\n"); | |
524 | BIO_printf(out, "\tif (point == NULL)\n\t\tgoto err;\n"); | |
525 | BIO_printf(out, "\tif ((tmp_2 = BN_bin2bn(ec_order_%d, " | |
526 | "sizeof(ec_order_%d), tmp_2)) == NULL)" | |
527 | "\n\t\tgoto err;\n", len, len); | |
528 | BIO_printf(out, "\tif ((tmp_3 = BN_bin2bn(ec_cofactor_%d, " | |
529 | "sizeof(ec_cofactor_%d), tmp_3)) == NULL)" | |
530 | "\n\t\tgoto err;\n", len, len); | |
531 | BIO_printf(out, "\tif (!EC_GROUP_set_generator(group, point," | |
532 | " tmp_2, tmp_3))\n\t\tgoto err;\n"); | |
533 | BIO_printf(out, "\n\tok=1;\n"); | |
534 | BIO_printf(out, "err:\n"); | |
535 | BIO_printf(out, "\tif (tmp_1)\n\t\tBN_free(tmp_1);\n"); | |
536 | BIO_printf(out, "\tif (tmp_2)\n\t\tBN_free(tmp_2);\n"); | |
537 | BIO_printf(out, "\tif (tmp_3)\n\t\tBN_free(tmp_3);\n"); | |
538 | BIO_printf(out, "\tif (point)\n\t\tEC_POINT_free(point);\n"); | |
539 | BIO_printf(out, "\tif (!ok)\n"); | |
540 | BIO_printf(out, "\t\t{\n"); | |
541 | BIO_printf(out, "\t\tEC_GROUP_free(group);\n"); | |
542 | BIO_printf(out, "\t\tgroup = NULL;\n"); | |
543 | BIO_printf(out, "\t\t}\n"); | |
544 | BIO_printf(out, "\treturn(group);\n\t}\n"); | |
545 | } | |
546 | ||
547 | if (!noout) { | |
548 | if (outformat == FORMAT_ASN1) | |
549 | i = i2d_ECPKParameters_bio(out, group); | |
550 | else if (outformat == FORMAT_PEM) | |
551 | i = PEM_write_bio_ECPKParameters(out, group); | |
552 | else { | |
553 | BIO_printf(bio_err, "bad output format specified for" | |
554 | " outfile\n"); | |
555 | goto end; | |
556 | } | |
557 | if (!i) { | |
558 | BIO_printf(bio_err, "unable to write elliptic " | |
559 | "curve parameters\n"); | |
560 | ERR_print_errors(bio_err); | |
561 | goto end; | |
562 | } | |
563 | } | |
564 | ||
565 | if (need_rand) { | |
566 | app_RAND_load_file(NULL, bio_err, (inrand != NULL)); | |
567 | if (inrand != NULL) | |
568 | BIO_printf(bio_err, "%ld semi-random bytes loaded\n", | |
569 | app_RAND_load_files(inrand)); | |
570 | } | |
571 | ||
572 | if (genkey) { | |
573 | EC_KEY *eckey = EC_KEY_new(); | |
574 | ||
575 | if (eckey == NULL) | |
576 | goto end; | |
577 | ||
578 | assert(need_rand); | |
579 | ||
580 | if (EC_KEY_set_group(eckey, group) == 0) | |
581 | goto end; | |
582 | ||
583 | if (!EC_KEY_generate_key(eckey)) { | |
584 | EC_KEY_free(eckey); | |
585 | goto end; | |
586 | } | |
587 | if (outformat == FORMAT_ASN1) | |
588 | i = i2d_ECPrivateKey_bio(out, eckey); | |
589 | else if (outformat == FORMAT_PEM) | |
590 | i = PEM_write_bio_ECPrivateKey(out, eckey, NULL, | |
591 | NULL, 0, NULL, NULL); | |
592 | else { | |
593 | BIO_printf(bio_err, "bad output format specified " | |
594 | "for outfile\n"); | |
595 | EC_KEY_free(eckey); | |
596 | goto end; | |
597 | } | |
598 | EC_KEY_free(eckey); | |
599 | } | |
600 | ||
601 | if (need_rand) | |
602 | app_RAND_write_file(NULL, bio_err); | |
603 | ||
604 | ret = 0; | |
605 | end: | |
606 | if (ec_p) | |
607 | BN_free(ec_p); | |
608 | if (ec_a) | |
609 | BN_free(ec_a); | |
610 | if (ec_b) | |
611 | BN_free(ec_b); | |
612 | if (ec_gen) | |
613 | BN_free(ec_gen); | |
614 | if (ec_order) | |
615 | BN_free(ec_order); | |
616 | if (ec_cofactor) | |
617 | BN_free(ec_cofactor); | |
618 | if (buffer) | |
619 | OPENSSL_free(buffer); | |
620 | if (in != NULL) | |
621 | BIO_free(in); | |
622 | if (out != NULL) | |
623 | BIO_free_all(out); | |
624 | if (group != NULL) | |
625 | EC_GROUP_free(group); | |
626 | apps_shutdown(); | |
627 | OPENSSL_EXIT(ret); | |
5dbd3efc BM |
628 | } |
629 | ||
3a160f1d | 630 | static int ecparam_print_var(BIO *out, BIGNUM *in, const char *var, |
10621efd MC |
631 | int len, unsigned char *buffer) |
632 | { | |
633 | BIO_printf(out, "static unsigned char %s_%d[] = {", var, len); | |
634 | if (BN_is_zero(in)) | |
635 | BIO_printf(out, "\n\t0x00"); | |
636 | else { | |
637 | int i, l; | |
638 | ||
639 | l = BN_bn2bin(in, buffer); | |
640 | for (i = 0; i < l - 1; i++) { | |
641 | if ((i % 12) == 0) | |
642 | BIO_printf(out, "\n\t"); | |
643 | BIO_printf(out, "0x%02X,", buffer[i]); | |
644 | } | |
645 | if ((i % 12) == 0) | |
646 | BIO_printf(out, "\n\t"); | |
647 | BIO_printf(out, "0x%02X", buffer[i]); | |
648 | } | |
649 | BIO_printf(out, "\n\t};\n\n"); | |
650 | return 1; | |
651 | } | |
652 | #else /* !OPENSSL_NO_EC */ | |
fe41d985 DSH |
653 | |
654 | # if PEDANTIC | |
10621efd | 655 | static void *dummy = &dummy; |
fe41d985 DSH |
656 | # endif |
657 | ||
5dbd3efc | 658 | #endif |