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5dbd3efc | 1 | /* apps/ecparam.c */ |
14a7cfb3 | 2 | /* |
7eb18f12 | 3 | * Written by Nils Larsch for the OpenSSL project. |
14a7cfb3 | 4 | */ |
5dbd3efc BM |
5 | /* ==================================================================== |
6 | * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved. | |
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 | |
13 | * notice, this list of conditions and the following disclaimer. | |
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 | * | |
61 | * Portions of the attached software ("Contribution") are developed by | |
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 | * | |
67 | * In addition, Sun covenants to all licensees who provide a reciprocal | |
68 | * covenant with respect to their own patents if any, not to sue under | |
69 | * current and future patent claims necessarily infringed by the making, | |
70 | * using, practicing, selling, offering for sale and/or otherwise | |
71 | * disposing of the Contribution as delivered hereunder | |
72 | * (or portions thereof), provided that such covenant shall not apply: | |
73 | * 1) for code that a licensee deletes from the Contribution; | |
74 | * 2) separates from the Contribution; or | |
75 | * 3) for infringements caused by: | |
76 | * i) the modification of the Contribution or | |
77 | * ii) the combination of the Contribution with other software or | |
78 | * devices where such combination causes the infringement. | |
79 | * | |
80 | * The elliptic curve binary polynomial software is originally written by | |
81 | * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories. | |
82 | * | |
83 | */ | |
14a7cfb3 | 84 | #ifndef OPENSSL_NO_EC |
5dbd3efc BM |
85 | #include <assert.h> |
86 | #include <stdio.h> | |
87 | #include <stdlib.h> | |
88 | #include <time.h> | |
89 | #include <string.h> | |
90 | #include "apps.h" | |
91 | #include <openssl/bio.h> | |
92 | #include <openssl/err.h> | |
93 | #include <openssl/bn.h> | |
94 | #include <openssl/ec.h> | |
5dbd3efc BM |
95 | #include <openssl/x509.h> |
96 | #include <openssl/pem.h> | |
97 | ||
98 | #undef PROG | |
99 | #define PROG ecparam_main | |
100 | ||
101 | /* -inform arg - input format - default PEM (DER or PEM) | |
102 | * -outform arg - output format - default PEM | |
103 | * -in arg - input file - default stdin | |
104 | * -out arg - output file - default stdout | |
105 | * -noout | |
106 | * -text | |
107 | * -check - validate the ec parameters | |
108 | * -C | |
109 | * -noout | |
110 | * -name file - use the ecparameters with 'short name' name | |
111 | * -list_curves - prints a list of all currently available curve | |
112 | * 'short names' and exits | |
113 | * -conv_form - specifies the point conversion form | |
c96f0fd2 BM |
114 | * possible values: compressed |
115 | * uncompressed (default) | |
116 | * hybrid | |
5dbd3efc BM |
117 | * -param_enc - specifies the way the ec parameters are encoded |
118 | * in the asn1 der encoding | |
c96f0fd2 BM |
119 | * possilbe values: named_curve (default) |
120 | * explicit | |
5dbd3efc BM |
121 | * -no_seed - if 'explicit' parameters are choosen do not |
122 | * use the seed | |
7eb18f12 | 123 | * -genkey - generates a ec private key |
5dbd3efc BM |
124 | * -rand file |
125 | * -engine e - use engine e, possible a hardware device | |
126 | */ | |
127 | ||
5dbd3efc BM |
128 | |
129 | static int ecparam_print_var(BIO *,BIGNUM *,const char *,int,unsigned char *); | |
130 | ||
131 | int MAIN(int, char **); | |
132 | ||
133 | int MAIN(int argc, char **argv) | |
134 | { | |
135 | EC_GROUP *group = NULL; | |
136 | point_conversion_form_t form = POINT_CONVERSION_UNCOMPRESSED; | |
137 | int new_form = 0; | |
138 | int asn1_flag = OPENSSL_EC_NAMED_CURVE; | |
139 | int new_asn1_flag = 0; | |
140 | char *curve_name = NULL, *inrand = NULL; | |
141 | int list_curves = 0, no_seed = 0, check = 0, | |
142 | badops = 0, text = 0, i, need_rand = 0, genkey = 0; | |
143 | char *infile = NULL, *outfile = NULL, *prog; | |
144 | BIO *in = NULL, *out = NULL; | |
145 | int informat, outformat, noout = 0, C = 0, ret = 1; | |
146 | ENGINE *e = NULL; | |
147 | char *engine = NULL; | |
148 | ||
149 | BIGNUM *ec_p = NULL, *ec_a = NULL, *ec_b = NULL, | |
150 | *ec_gen = NULL, *ec_order = NULL, *ec_cofactor = NULL; | |
151 | unsigned char *buffer = NULL; | |
152 | ||
153 | apps_startup(); | |
154 | ||
155 | if (bio_err == NULL) | |
156 | if ((bio_err=BIO_new(BIO_s_file())) != NULL) | |
157 | BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); | |
158 | ||
159 | if (!load_config(bio_err, NULL)) | |
160 | goto end; | |
161 | ||
162 | informat=FORMAT_PEM; | |
163 | outformat=FORMAT_PEM; | |
164 | ||
165 | prog=argv[0]; | |
166 | argc--; | |
167 | argv++; | |
168 | while (argc >= 1) | |
169 | { | |
170 | if (strcmp(*argv,"-inform") == 0) | |
171 | { | |
172 | if (--argc < 1) goto bad; | |
173 | informat=str2fmt(*(++argv)); | |
174 | } | |
175 | else if (strcmp(*argv,"-outform") == 0) | |
176 | { | |
177 | if (--argc < 1) goto bad; | |
178 | outformat=str2fmt(*(++argv)); | |
179 | } | |
180 | else if (strcmp(*argv,"-in") == 0) | |
181 | { | |
182 | if (--argc < 1) goto bad; | |
183 | infile= *(++argv); | |
184 | } | |
185 | else if (strcmp(*argv,"-out") == 0) | |
186 | { | |
187 | if (--argc < 1) goto bad; | |
188 | outfile= *(++argv); | |
189 | } | |
190 | else if (strcmp(*argv,"-text") == 0) | |
191 | text = 1; | |
192 | else if (strcmp(*argv,"-C") == 0) | |
193 | C = 1; | |
194 | else if (strcmp(*argv,"-check") == 0) | |
195 | check = 1; | |
196 | else if (strcmp (*argv, "-name") == 0) | |
197 | { | |
198 | if (--argc < 1) | |
199 | goto bad; | |
200 | curve_name = *(++argv); | |
201 | } | |
202 | else if (strcmp(*argv, "-list_curves") == 0) | |
203 | list_curves = 1; | |
204 | else if (strcmp(*argv, "-conv_form") == 0) | |
205 | { | |
206 | if (--argc < 1) | |
207 | goto bad; | |
208 | ++argv; | |
209 | new_form = 1; | |
210 | if (strcmp(*argv, "compressed") == 0) | |
211 | form = POINT_CONVERSION_COMPRESSED; | |
212 | else if (strcmp(*argv, "uncompressed") == 0) | |
213 | form = POINT_CONVERSION_UNCOMPRESSED; | |
214 | else if (strcmp(*argv, "hybrid") == 0) | |
215 | form = POINT_CONVERSION_HYBRID; | |
216 | else | |
217 | goto bad; | |
218 | } | |
219 | else if (strcmp(*argv, "-param_enc") == 0) | |
220 | { | |
221 | if (--argc < 1) | |
222 | goto bad; | |
223 | ++argv; | |
224 | new_asn1_flag = 1; | |
225 | if (strcmp(*argv, "named_curve") == 0) | |
226 | asn1_flag = OPENSSL_EC_NAMED_CURVE; | |
227 | else if (strcmp(*argv, "explicit") == 0) | |
228 | asn1_flag = 0; | |
229 | else | |
230 | goto bad; | |
231 | } | |
232 | else if (strcmp(*argv, "-no_seed") == 0) | |
233 | no_seed = 1; | |
234 | else if (strcmp(*argv, "-noout") == 0) | |
235 | noout=1; | |
236 | else if (strcmp(*argv,"-genkey") == 0) | |
237 | { | |
238 | genkey=1; | |
239 | need_rand=1; | |
240 | } | |
241 | else if (strcmp(*argv, "-rand") == 0) | |
242 | { | |
243 | if (--argc < 1) goto bad; | |
244 | inrand= *(++argv); | |
245 | need_rand=1; | |
246 | } | |
247 | else if(strcmp(*argv, "-engine") == 0) | |
248 | { | |
249 | if (--argc < 1) goto bad; | |
250 | engine = *(++argv); | |
251 | } | |
252 | else | |
253 | { | |
254 | BIO_printf(bio_err,"unknown option %s\n",*argv); | |
255 | badops=1; | |
256 | break; | |
257 | } | |
258 | argc--; | |
259 | argv++; | |
260 | } | |
261 | ||
262 | if (badops) | |
263 | { | |
264 | bad: | |
265 | BIO_printf(bio_err, "%s [options] <infile >outfile\n",prog); | |
266 | BIO_printf(bio_err, "where options are\n"); | |
267 | BIO_printf(bio_err, " -inform arg input format - " | |
268 | "default PEM (DER or PEM)\n"); | |
269 | BIO_printf(bio_err, " -outform arg output format - " | |
270 | "default PEM\n"); | |
271 | BIO_printf(bio_err, " -in arg input file - " | |
272 | "default stdin\n"); | |
273 | BIO_printf(bio_err, " -out arg output file - " | |
274 | "default stdout\n"); | |
275 | BIO_printf(bio_err, " -noout do not print the " | |
276 | "ec parameter\n"); | |
277 | BIO_printf(bio_err, " -text print the ec " | |
278 | "parameters in text form\n"); | |
279 | BIO_printf(bio_err, " -check validate the ec " | |
280 | "parameters\n"); | |
281 | BIO_printf(bio_err, " -C print a 'C' " | |
282 | "function creating the parameters\n"); | |
283 | BIO_printf(bio_err, " -name arg use the " | |
284 | "ec parameters with 'short name' name\n"); | |
285 | BIO_printf(bio_err, " -list_curves prints a list of " | |
286 | "all currently available curve\n"); | |
287 | BIO_printf(bio_err, " 'short names'\n"); | |
288 | BIO_printf(bio_err, " -conv_form arg specifies the " | |
289 | "point conversion form \n"); | |
c96f0fd2 | 290 | BIO_printf(bio_err, " possible values:" |
5dbd3efc | 291 | " compressed\n"); |
c96f0fd2 | 292 | BIO_printf(bio_err, " " |
5dbd3efc | 293 | " uncompressed (default)\n"); |
c96f0fd2 | 294 | BIO_printf(bio_err, " " |
5dbd3efc BM |
295 | " hybrid\n"); |
296 | BIO_printf(bio_err, " -param_enc arg specifies the way" | |
297 | " the ec parameters are encoded\n"); | |
298 | BIO_printf(bio_err, " in the asn1 der " | |
299 | "encoding\n"); | |
c96f0fd2 | 300 | BIO_printf(bio_err, " possilbe values:" |
5dbd3efc BM |
301 | " named_curve (default)\n"); |
302 | BIO_printf(bio_err," " | |
c96f0fd2 | 303 | " explicit\n"); |
5dbd3efc BM |
304 | BIO_printf(bio_err, " -no_seed if 'explicit'" |
305 | " parameters are choosen do not\n"); | |
306 | BIO_printf(bio_err, " use the seed\n"); | |
7eb18f12 | 307 | BIO_printf(bio_err, " -genkey generate ec" |
5dbd3efc BM |
308 | " key\n"); |
309 | BIO_printf(bio_err, " -rand file files to use for" | |
310 | " random number input\n"); | |
311 | BIO_printf(bio_err, " -engine e use engine e, " | |
312 | "possible a hardware device\n"); | |
313 | goto end; | |
314 | } | |
315 | ||
316 | ERR_load_crypto_strings(); | |
317 | ||
318 | in=BIO_new(BIO_s_file()); | |
319 | out=BIO_new(BIO_s_file()); | |
320 | if ((in == NULL) || (out == NULL)) | |
321 | { | |
322 | ERR_print_errors(bio_err); | |
323 | goto end; | |
324 | } | |
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 | if (outfile == NULL) | |
337 | { | |
338 | BIO_set_fp(out,stdout,BIO_NOCLOSE); | |
339 | #ifdef OPENSSL_SYS_VMS | |
340 | { | |
341 | BIO *tmpbio = BIO_new(BIO_f_linebuffer()); | |
342 | out = BIO_push(tmpbio, out); | |
343 | } | |
344 | #endif | |
345 | } | |
346 | else | |
347 | { | |
348 | if (BIO_write_filename(out,outfile) <= 0) | |
349 | { | |
350 | perror(outfile); | |
351 | goto end; | |
352 | } | |
353 | } | |
354 | ||
355 | e = setup_engine(bio_err, engine, 0); | |
356 | ||
357 | if (list_curves) | |
358 | { | |
359 | int counter=0; | |
360 | ||
7eb18f12 BM |
361 | for (;;) |
362 | { | |
363 | const char *comment; | |
364 | const char *sname; | |
365 | int len, nid = ec_group_index2nid(counter++); | |
366 | if (!nid) | |
367 | break; | |
368 | comment = EC_GROUP_get0_comment(nid); | |
369 | sname = OBJ_nid2sn(nid); | |
370 | if (comment == NULL) | |
371 | comment = ""; | |
372 | if (sname == NULL) | |
428112ef | 373 | sname = ""; |
7eb18f12 BM |
374 | |
375 | len = BIO_printf(out, " %-10s: ", sname); | |
376 | if (len + strlen(comment) > 80) | |
377 | BIO_printf(out, "\n%80s\n", comment); | |
378 | else | |
379 | BIO_printf(out, "%s\n", comment); | |
380 | } | |
381 | ||
5dbd3efc BM |
382 | ret = 0; |
383 | goto end; | |
384 | } | |
385 | ||
386 | if (curve_name != NULL) | |
387 | { | |
388 | int nid = OBJ_sn2nid(curve_name); | |
389 | ||
390 | if (nid == 0) | |
391 | { | |
392 | BIO_printf(bio_err, "unknown curve name (%s)\n", | |
393 | curve_name); | |
394 | goto end; | |
395 | } | |
396 | ||
397 | group = EC_GROUP_new_by_nid(nid); | |
398 | if (group == NULL) | |
399 | { | |
400 | BIO_printf(bio_err, "unable to create curve (%s)\n", | |
401 | curve_name); | |
402 | goto end; | |
403 | } | |
404 | EC_GROUP_set_asn1_flag(group, asn1_flag); | |
405 | EC_GROUP_set_point_conversion_form(group, form); | |
406 | } | |
407 | else if (informat == FORMAT_ASN1) | |
408 | { | |
409 | group = d2i_ECPKParameters_bio(in, NULL); | |
410 | } | |
411 | else if (informat == FORMAT_PEM) | |
412 | { | |
413 | group = PEM_read_bio_ECPKParameters(in,NULL,NULL,NULL); | |
414 | } | |
415 | else | |
416 | { | |
417 | BIO_printf(bio_err, "bad input format specified\n"); | |
418 | goto end; | |
419 | } | |
420 | ||
421 | if (group == NULL) | |
422 | { | |
423 | BIO_printf(bio_err, | |
424 | "unable to load elliptic curve parameters\n"); | |
425 | ERR_print_errors(bio_err); | |
426 | goto end; | |
427 | } | |
428 | ||
429 | if (new_form) | |
430 | EC_GROUP_set_point_conversion_form(group, form); | |
431 | ||
432 | if (new_asn1_flag) | |
433 | EC_GROUP_set_asn1_flag(group, asn1_flag); | |
434 | ||
435 | if (no_seed) | |
436 | { | |
437 | EC_GROUP_set_seed(group, NULL, 0); | |
438 | } | |
439 | ||
440 | if (text) | |
441 | { | |
442 | if (!ECPKParameters_print(out, group, 0)) | |
443 | goto end; | |
444 | } | |
445 | ||
446 | if (check) | |
447 | { | |
448 | if (group == NULL) | |
449 | BIO_printf(bio_err, "no elliptic curve parameters\n"); | |
450 | BIO_printf(bio_err, "checking elliptic curve parameters: "); | |
451 | if (!EC_GROUP_check(group, NULL)) | |
452 | { | |
453 | BIO_printf(bio_err, "failed\n"); | |
454 | ERR_print_errors(bio_err); | |
455 | } | |
456 | else | |
457 | BIO_printf(bio_err, "ok\n"); | |
458 | ||
459 | } | |
460 | ||
461 | if (C) | |
462 | { | |
463 | size_t buf_len = 0, tmp_len = 0; | |
464 | const EC_POINT *point; | |
465 | int is_prime, len = 0; | |
466 | const EC_METHOD *meth = EC_GROUP_method_of(group); | |
467 | ||
468 | if ((ec_p = BN_new()) == NULL || (ec_a = BN_new()) == NULL || | |
469 | (ec_b = BN_new()) == NULL || (ec_gen = BN_new()) == NULL || | |
470 | (ec_order = BN_new()) == NULL || | |
471 | (ec_cofactor = BN_new()) == NULL ) | |
472 | { | |
473 | perror("OPENSSL_malloc"); | |
474 | goto end; | |
475 | } | |
476 | ||
477 | is_prime = (EC_METHOD_get_field_type(meth) == | |
478 | NID_X9_62_prime_field); | |
479 | ||
480 | if (is_prime) | |
481 | { | |
482 | if (!EC_GROUP_get_curve_GFp(group, ec_p, ec_a, | |
483 | ec_b, NULL)) | |
484 | goto end; | |
485 | } | |
486 | else | |
487 | { | |
488 | /* TODO */ | |
489 | goto end; | |
490 | } | |
491 | ||
492 | if ((point = EC_GROUP_get0_generator(group)) == NULL) | |
493 | goto end; | |
494 | if (!EC_POINT_point2bn(group, point, | |
495 | EC_GROUP_get_point_conversion_form(group), ec_gen, | |
496 | NULL)) | |
497 | goto end; | |
498 | if (!EC_GROUP_get_order(group, ec_order, NULL)) | |
499 | goto end; | |
500 | if (!EC_GROUP_get_cofactor(group, ec_cofactor, NULL)) | |
501 | goto end; | |
502 | ||
503 | if (!ec_p || !ec_a || !ec_b || !ec_gen || | |
504 | !ec_order || !ec_cofactor) | |
505 | goto end; | |
506 | ||
507 | len = BN_num_bits(ec_order); | |
508 | ||
509 | if ((tmp_len = (size_t)BN_num_bytes(ec_p)) > buf_len) | |
510 | buf_len = tmp_len; | |
511 | if ((tmp_len = (size_t)BN_num_bytes(ec_a)) > buf_len) | |
512 | buf_len = tmp_len; | |
513 | if ((tmp_len = (size_t)BN_num_bytes(ec_b)) > buf_len) | |
514 | buf_len = tmp_len; | |
515 | if ((tmp_len = (size_t)BN_num_bytes(ec_gen)) > buf_len) | |
516 | buf_len = tmp_len; | |
517 | if ((tmp_len = (size_t)BN_num_bytes(ec_order)) > buf_len) | |
518 | buf_len = tmp_len; | |
519 | if ((tmp_len = (size_t)BN_num_bytes(ec_cofactor)) > buf_len) | |
520 | buf_len = tmp_len; | |
521 | ||
522 | buffer = (unsigned char *)OPENSSL_malloc(buf_len); | |
523 | ||
524 | if (buffer == NULL) | |
525 | { | |
526 | perror("OPENSSL_malloc"); | |
527 | goto end; | |
528 | } | |
529 | ||
530 | ecparam_print_var(out, ec_p, "ec_p", len, buffer); | |
531 | ecparam_print_var(out, ec_a, "ec_a", len, buffer); | |
532 | ecparam_print_var(out, ec_b, "ec_b", len, buffer); | |
533 | ecparam_print_var(out, ec_gen, "ec_gen", len, buffer); | |
534 | ecparam_print_var(out, ec_order, "ec_order", len, buffer); | |
535 | ecparam_print_var(out, ec_cofactor, "ec_cofactor", len, | |
536 | buffer); | |
537 | ||
538 | BIO_printf(out, "\n\n"); | |
539 | ||
540 | BIO_printf(out, "EC_GROUP *get_ec_group_%d(void)\n\t{\n", len); | |
541 | BIO_printf(out, "\tint ok=0;\n"); | |
542 | BIO_printf(out, "\tEC_GROUP *group = NULL;\n"); | |
543 | BIO_printf(out, "\tEC_POINT *point = NULL;\n"); | |
544 | BIO_printf(out, "\tBIGNUM *tmp_1 = NULL, *tmp_2 = NULL, " | |
545 | "*tmp_3 = NULL;\n\n"); | |
546 | BIO_printf(out, "\tif ((tmp_1 = BN_bin2bn(ec_p_%d, " | |
547 | "sizeof(ec_p_%d), NULL)) == NULL)\n\t\t" | |
548 | "goto err;\n", len, len); | |
549 | BIO_printf(out, "\tif ((tmp_2 = BN_bin2bn(ec_a_%d, " | |
550 | "sizeof(ec_a_%d), NULL)) == NULL)\n\t\t" | |
551 | "goto err;\n", len, len); | |
552 | BIO_printf(out, "\tif ((tmp_3 = BN_bin2bn(ec_b_%d, " | |
553 | "sizeof(ec_b_%d), NULL)) == NULL)\n\t\t" | |
554 | "goto err;\n", len, len); | |
555 | if (is_prime) | |
556 | { | |
557 | BIO_printf(out, "\tif ((group = EC_GROUP_new_curve_" | |
558 | "GFp(tmp_1, tmp_2, tmp_3, NULL)) == NULL)" | |
559 | "\n\t\tgoto err;\n\n"); | |
560 | } | |
561 | else | |
562 | { | |
563 | /* TODO */ | |
564 | goto end; | |
565 | } | |
566 | BIO_printf(out, "\t/* build generator */\n"); | |
567 | BIO_printf(out, "\tif ((tmp_1 = BN_bin2bn(ec_gen_%d, " | |
568 | "sizeof(ec_gen_%d), tmp_1)) == NULL)" | |
569 | "\n\t\tgoto err;\n", len, len); | |
570 | BIO_printf(out, "\tpoint = EC_POINT_bn2point(group, tmp_1, " | |
571 | "NULL, NULL);\n"); | |
572 | BIO_printf(out, "\tif (point == NULL)\n\t\tgoto err;\n"); | |
573 | BIO_printf(out, "\tif ((tmp_2 = BN_bin2bn(ec_order_%d, " | |
574 | "sizeof(ec_order_%d), tmp_2)) == NULL)" | |
575 | "\n\t\tgoto err;\n", len, len); | |
576 | BIO_printf(out, "\tif ((tmp_3 = BN_bin2bn(ec_cofactor_%d, " | |
577 | "sizeof(ec_cofactor_%d), tmp_3)) == NULL)" | |
578 | "\n\t\tgoto err;\n", len, len); | |
579 | BIO_printf(out, "\tif (!EC_GROUP_set_generator(group, point," | |
580 | " tmp_2, tmp_3))\n\t\tgoto err;\n"); | |
581 | BIO_printf(out, "\n\tok=1;\n"); | |
582 | BIO_printf(out, "err:\n"); | |
583 | BIO_printf(out, "\tif (tmp_1)\n\t\tBN_free(tmp_1);\n"); | |
584 | BIO_printf(out, "\tif (tmp_2)\n\t\tBN_free(tmp_2);\n"); | |
585 | BIO_printf(out, "\tif (tmp_3)\n\t\tBN_free(tmp_3);\n"); | |
586 | BIO_printf(out, "\tif (point)\n\t\tEC_POINT_free(point);\n"); | |
587 | BIO_printf(out, "\tif (!ok)\n"); | |
588 | BIO_printf(out, "\t\t{\n"); | |
589 | BIO_printf(out, "\t\tEC_GROUP_free(group);\n"); | |
590 | BIO_printf(out, "\t\tgroup = NULL;\n"); | |
591 | BIO_printf(out, "\t\t}\n"); | |
592 | BIO_printf(out, "\treturn(group);\n\t}\n"); | |
593 | } | |
594 | ||
595 | if (!noout) | |
596 | { | |
597 | if (outformat == FORMAT_ASN1) | |
598 | i = i2d_ECPKParameters_bio(out, group); | |
599 | else if (outformat == FORMAT_PEM) | |
600 | i = PEM_write_bio_ECPKParameters(out, group); | |
601 | else | |
602 | { | |
603 | BIO_printf(bio_err,"bad output format specified for" | |
604 | " outfile\n"); | |
605 | goto end; | |
606 | } | |
607 | if (!i) | |
608 | { | |
609 | BIO_printf(bio_err, "unable to write elliptic " | |
610 | "curve parameters\n"); | |
611 | ERR_print_errors(bio_err); | |
612 | goto end; | |
613 | } | |
614 | } | |
615 | ||
616 | if (need_rand) | |
617 | { | |
618 | app_RAND_load_file(NULL, bio_err, (inrand != NULL)); | |
619 | if (inrand != NULL) | |
620 | BIO_printf(bio_err,"%ld semi-random bytes loaded\n", | |
621 | app_RAND_load_files(inrand)); | |
622 | } | |
623 | ||
624 | if (genkey) | |
625 | { | |
14a7cfb3 | 626 | EC_KEY *eckey = EC_KEY_new(); |
5dbd3efc | 627 | |
14a7cfb3 | 628 | if (eckey == NULL) |
5dbd3efc BM |
629 | goto end; |
630 | ||
631 | assert(need_rand); | |
632 | ||
14a7cfb3 | 633 | eckey->group = group; |
5dbd3efc | 634 | |
14a7cfb3 | 635 | if (!EC_KEY_generate_key(eckey)) |
5dbd3efc | 636 | { |
14a7cfb3 BM |
637 | eckey->group = NULL; |
638 | EC_KEY_free(eckey); | |
5dbd3efc BM |
639 | goto end; |
640 | } | |
641 | if (outformat == FORMAT_ASN1) | |
14a7cfb3 | 642 | i = i2d_ECPrivateKey_bio(out, eckey); |
5dbd3efc | 643 | else if (outformat == FORMAT_PEM) |
14a7cfb3 | 644 | i = PEM_write_bio_ECPrivateKey(out, eckey, NULL, |
5dbd3efc BM |
645 | NULL, 0, NULL, NULL); |
646 | else | |
647 | { | |
648 | BIO_printf(bio_err, "bad output format specified " | |
649 | "for outfile\n"); | |
14a7cfb3 BM |
650 | eckey->group = NULL; |
651 | EC_KEY_free(eckey); | |
5dbd3efc BM |
652 | goto end; |
653 | } | |
14a7cfb3 BM |
654 | eckey->group = NULL; |
655 | EC_KEY_free(eckey); | |
5dbd3efc BM |
656 | } |
657 | ||
658 | if (need_rand) | |
659 | app_RAND_write_file(NULL, bio_err); | |
660 | ||
661 | ret=0; | |
662 | end: | |
663 | if (ec_p) | |
664 | BN_free(ec_p); | |
665 | if (ec_a) | |
666 | BN_free(ec_a); | |
667 | if (ec_b) | |
668 | BN_free(ec_b); | |
669 | if (ec_gen) | |
670 | BN_free(ec_gen); | |
671 | if (ec_order) | |
672 | BN_free(ec_order); | |
673 | if (ec_cofactor) | |
674 | BN_free(ec_cofactor); | |
675 | if (buffer) | |
676 | OPENSSL_free(buffer); | |
677 | if (in != NULL) | |
678 | BIO_free(in); | |
679 | if (out != NULL) | |
680 | BIO_free_all(out); | |
681 | if (group != NULL) | |
682 | EC_GROUP_free(group); | |
683 | apps_shutdown(); | |
684 | EXIT(ret); | |
685 | } | |
686 | ||
687 | int ecparam_print_var(BIO *out, BIGNUM *in, const char *var, | |
688 | int len, unsigned char *buffer) | |
689 | { | |
690 | BIO_printf(out, "static unsigned char %s_%d[] = {", var, len); | |
691 | if (BN_is_zero(in)) | |
692 | BIO_printf(out, "\n\t0x00"); | |
693 | else | |
694 | { | |
695 | int i, l; | |
696 | ||
697 | l = BN_bn2bin(in, buffer); | |
698 | for (i=0; i<l-1; i++) | |
699 | { | |
700 | if ((i%12) == 0) | |
701 | BIO_printf(out, "\n\t"); | |
702 | BIO_printf(out, "0x%02X,", buffer[i]); | |
703 | } | |
704 | if ((i%12) == 0) | |
705 | BIO_printf(out, "\n\t"); | |
706 | BIO_printf(out, "0x%02X", buffer[i]); | |
707 | } | |
708 | BIO_printf(out, "\n\t};\n\n"); | |
709 | return 1; | |
710 | } | |
711 | #endif |