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turns printfs back on
[freebsd-src/fkvm-freebsd.git] / crypto / openssl / apps / ecparam.c
blob4e1fc837ed6aca2366287bf9e25bd616d7512130
1 /* apps/ecparam.c */
2 /*
3 * Written by Nils Larsch for the OpenSSL project.
4 */
5 /* ====================================================================
6 * Copyright (c) 1998-2005 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 */
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 * The elliptic curve binary polynomial software is originally written by
68 * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories.
69 *
70 */
71
72 #include <openssl/opensslconf.h>
73 #ifndef OPENSSL_NO_EC
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
89
90 /* -inform arg - input format - default PEM (DER or PEM)
91 * -outform arg - output format - default PEM
92 * -in arg - input file - default stdin
93 * -out arg - output file - default stdout
94 * -noout - do not print the ec parameter
95 * -text - print the ec parameters in text form
96 * -check - validate the ec parameters
97 * -C - print a 'C' function creating the parameters
98 * -name arg - use the ec parameters with 'short name' name
99 * -list_curves - prints a list of all currently available curve 'short names'
100 * -conv_form arg - specifies the point conversion form
101 * - possible values: compressed
102 * uncompressed (default)
103 * hybrid
104 * -param_enc arg - specifies the way the ec parameters are encoded
105 * in the asn1 der encoding
106 * possible values: named_curve (default)
107 * explicit
108 * -no_seed - if 'explicit' parameters are choosen do not use the seed
109 * -genkey - generate ec key
110 * -rand file - files to use for random number input
111 * -engine e - use engine e, possibly a hardware device
112 */
113
114
115 static int ecparam_print_var(BIO *,BIGNUM *,const char *,int,unsigned char *);
116
117 int MAIN(int, char **);
118
119 int MAIN(int argc, char **argv)
120 {
121 EC_GROUP *group = NULL;
122 point_conversion_form_t form = POINT_CONVERSION_UNCOMPRESSED;
123 int new_form = 0;
124 int asn1_flag = OPENSSL_EC_NAMED_CURVE;
125 int new_asn1_flag = 0;
126 char *curve_name = NULL, *inrand = NULL;
127 int list_curves = 0, no_seed = 0, check = 0,
128 badops = 0, text = 0, i, need_rand = 0, genkey = 0;
129 char *infile = NULL, *outfile = NULL, *prog;
130 BIO *in = NULL, *out = NULL;
131 int informat, outformat, noout = 0, C = 0, ret = 1;
132 #ifndef OPENSSL_NO_ENGINE
133 ENGINE *e = NULL;
134 #endif
135 char *engine = NULL;
136
137 BIGNUM *ec_p = NULL, *ec_a = NULL, *ec_b = NULL,
138 *ec_gen = NULL, *ec_order = NULL, *ec_cofactor = NULL;
139 unsigned char *buffer = NULL;
140
141 apps_startup();
142
143 if (bio_err == NULL)
144 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
145 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
146
147 if (!load_config(bio_err, NULL))
148 goto end;
149
150 informat=FORMAT_PEM;
151 outformat=FORMAT_PEM;
152
153 prog=argv[0];
154 argc--;
155 argv++;
156 while (argc >= 1)
157 {
158 if (strcmp(*argv,"-inform") == 0)
159 {
160 if (--argc < 1) goto bad;
161 informat=str2fmt(*(++argv));
162 }
163 else if (strcmp(*argv,"-outform") == 0)
164 {
165 if (--argc < 1) goto bad;
166 outformat=str2fmt(*(++argv));
167 }
168 else if (strcmp(*argv,"-in") == 0)
169 {
170 if (--argc < 1) goto bad;
171 infile= *(++argv);
172 }
173 else if (strcmp(*argv,"-out") == 0)
174 {
175 if (--argc < 1) goto bad;
176 outfile= *(++argv);
177 }
178 else if (strcmp(*argv,"-text") == 0)
179 text = 1;
180 else if (strcmp(*argv,"-C") == 0)
181 C = 1;
182 else if (strcmp(*argv,"-check") == 0)
183 check = 1;
184 else if (strcmp (*argv, "-name") == 0)
185 {
186 if (--argc < 1)
187 goto bad;
188 curve_name = *(++argv);
189 }
190 else if (strcmp(*argv, "-list_curves") == 0)
191 list_curves = 1;
192 else if (strcmp(*argv, "-conv_form") == 0)
193 {
194 if (--argc < 1)
195 goto bad;
196 ++argv;
197 new_form = 1;
198 if (strcmp(*argv, "compressed") == 0)
199 form = POINT_CONVERSION_COMPRESSED;
200 else if (strcmp(*argv, "uncompressed") == 0)
201 form = POINT_CONVERSION_UNCOMPRESSED;
202 else if (strcmp(*argv, "hybrid") == 0)
203 form = POINT_CONVERSION_HYBRID;
204 else
205 goto bad;
206 }
207 else if (strcmp(*argv, "-param_enc") == 0)
208 {
209 if (--argc < 1)
210 goto bad;
211 ++argv;
212 new_asn1_flag = 1;
213 if (strcmp(*argv, "named_curve") == 0)
214 asn1_flag = OPENSSL_EC_NAMED_CURVE;
215 else if (strcmp(*argv, "explicit") == 0)
216 asn1_flag = 0;
217 else
218 goto bad;
219 }
220 else if (strcmp(*argv, "-no_seed") == 0)
221 no_seed = 1;
222 else if (strcmp(*argv, "-noout") == 0)
223 noout=1;
224 else if (strcmp(*argv,"-genkey") == 0)
225 {
226 genkey=1;
227 need_rand=1;
228 }
229 else if (strcmp(*argv, "-rand") == 0)
230 {
231 if (--argc < 1) goto bad;
232 inrand= *(++argv);
233 need_rand=1;
234 }
235 else if(strcmp(*argv, "-engine") == 0)
236 {
237 if (--argc < 1) goto bad;
238 engine = *(++argv);
239 }
240 else
241 {
242 BIO_printf(bio_err,"unknown option %s\n",*argv);
243 badops=1;
244 break;
245 }
246 argc--;
247 argv++;
248 }
249
250 if (badops)
251 {
252 bad:
253 BIO_printf(bio_err, "%s [options] <infile >outfile\n",prog);
254 BIO_printf(bio_err, "where options are\n");
255 BIO_printf(bio_err, " -inform arg input format - "
256 "default PEM (DER or PEM)\n");
257 BIO_printf(bio_err, " -outform arg output format - "
258 "default PEM\n");
259 BIO_printf(bio_err, " -in arg input file - "
260 "default stdin\n");
261 BIO_printf(bio_err, " -out arg output file - "
262 "default stdout\n");
263 BIO_printf(bio_err, " -noout do not print the "
264 "ec parameter\n");
265 BIO_printf(bio_err, " -text print the ec "
266 "parameters in text form\n");
267 BIO_printf(bio_err, " -check validate the ec "
268 "parameters\n");
269 BIO_printf(bio_err, " -C print a 'C' "
270 "function creating the parameters\n");
271 BIO_printf(bio_err, " -name arg use the "
272 "ec parameters with 'short name' name\n");
273 BIO_printf(bio_err, " -list_curves prints a list of "
274 "all currently available curve 'short names'\n");
275 BIO_printf(bio_err, " -conv_form arg specifies the "
276 "point conversion form \n");
277 BIO_printf(bio_err, " possible values:"
278 " compressed\n");
279 BIO_printf(bio_err, " "
280 " uncompressed (default)\n");
281 BIO_printf(bio_err, " "
282 " hybrid\n");
283 BIO_printf(bio_err, " -param_enc arg specifies the way"
284 " the ec parameters are encoded\n");
285 BIO_printf(bio_err, " in the asn1 der "
286 "encoding\n");
287 BIO_printf(bio_err, " possible values:"
288 " named_curve (default)\n");
289 BIO_printf(bio_err, " "
290 " explicit\n");
291 BIO_printf(bio_err, " -no_seed if 'explicit'"
292 " parameters are choosen do not"
293 " use the seed\n");
294 BIO_printf(bio_err, " -genkey generate ec"
295 " key\n");
296 BIO_printf(bio_err, " -rand file files to use for"
297 " random number input\n");
298 BIO_printf(bio_err, " -engine e use engine e, "
299 "possibly a hardware device\n");
300 goto end;
301 }
302
303 ERR_load_crypto_strings();
304
305 in=BIO_new(BIO_s_file());
306 out=BIO_new(BIO_s_file());
307 if ((in == NULL) || (out == NULL))
308 {
309 ERR_print_errors(bio_err);
310 goto end;
311 }
312
313 if (infile == NULL)
314 BIO_set_fp(in,stdin,BIO_NOCLOSE);
315 else
316 {
317 if (BIO_read_filename(in,infile) <= 0)
318 {
319 perror(infile);
320 goto end;
321 }
322 }
323 if (outfile == NULL)
324 {
325 BIO_set_fp(out,stdout,BIO_NOCLOSE);
326 #ifdef OPENSSL_SYS_VMS
327 {
328 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
329 out = BIO_push(tmpbio, out);
330 }
331 #endif
332 }
333 else
334 {
335 if (BIO_write_filename(out,outfile) <= 0)
336 {
337 perror(outfile);
338 goto end;
339 }
340 }
341
342 #ifndef OPENSSL_NO_ENGINE
343 e = setup_engine(bio_err, engine, 0);
344 #endif
345
346 if (list_curves)
347 {
348 EC_builtin_curve *curves = NULL;
349 size_t crv_len = 0;
350 size_t n = 0;
351
352 crv_len = EC_get_builtin_curves(NULL, 0);
353
354 curves = OPENSSL_malloc((int)(sizeof(EC_builtin_curve) * crv_len));
355
356 if (curves == NULL)
357 goto end;
358
359 if (!EC_get_builtin_curves(curves, crv_len))
360 {
361 OPENSSL_free(curves);
362 goto end;
363 }
364
365
366 for (n = 0; n < crv_len; n++)
367 {
368 const char *comment;
369 const char *sname;
370 comment = curves[n].comment;
371 sname = OBJ_nid2sn(curves[n].nid);
372 if (comment == NULL)
373 comment = "CURVE DESCRIPTION NOT AVAILABLE";
374 if (sname == NULL)
375 sname = "";
376
377 BIO_printf(out, " %-10s: ", sname);
378 BIO_printf(out, "%s\n", comment);
379 }
380
381 OPENSSL_free(curves);
382 ret = 0;
383 goto end;
384 }
385
386 if (curve_name != NULL)
387 {
388 int nid;
389
390 /* workaround for the SECG curve names secp192r1
391 * and secp256r1 (which are the same as the curves
392 * prime192v1 and prime256v1 defined in X9.62)
393 */
394 if (!strcmp(curve_name, "secp192r1"))
395 {
396 BIO_printf(bio_err, "using curve name prime192v1 "
397 "instead of secp192r1\n");
398 nid = NID_X9_62_prime192v1;
399 }
400 else if (!strcmp(curve_name, "secp256r1"))
401 {
402 BIO_printf(bio_err, "using curve name prime256v1 "
403 "instead of secp256r1\n");
404 nid = NID_X9_62_prime256v1;
405 }
406 else
407 nid = OBJ_sn2nid(curve_name);
408
409 if (nid == 0)
410 {
411 BIO_printf(bio_err, "unknown curve name (%s)\n",
412 curve_name);
413 goto end;
414 }
415
416 group = EC_GROUP_new_by_curve_name(nid);
417 if (group == NULL)
418 {
419 BIO_printf(bio_err, "unable to create curve (%s)\n",
420 curve_name);
421 goto end;
422 }
423 EC_GROUP_set_asn1_flag(group, asn1_flag);
424 EC_GROUP_set_point_conversion_form(group, form);
425 }
426 else if (informat == FORMAT_ASN1)
427 {
428 group = d2i_ECPKParameters_bio(in, NULL);
429 }
430 else if (informat == FORMAT_PEM)
431 {
432 group = PEM_read_bio_ECPKParameters(in,NULL,NULL,NULL);
433 }
434 else
435 {
436 BIO_printf(bio_err, "bad input format specified\n");
437 goto end;
438 }
439
440 if (group == NULL)
441 {
442 BIO_printf(bio_err,
443 "unable to load elliptic curve parameters\n");
444 ERR_print_errors(bio_err);
445 goto end;
446 }
447
448 if (new_form)
449 EC_GROUP_set_point_conversion_form(group, form);
450
451 if (new_asn1_flag)
452 EC_GROUP_set_asn1_flag(group, asn1_flag);
453
454 if (no_seed)
455 {
456 EC_GROUP_set_seed(group, NULL, 0);
457 }
458
459 if (text)
460 {
461 if (!ECPKParameters_print(out, group, 0))
462 goto end;
463 }
464
465 if (check)
466 {
467 if (group == NULL)
468 BIO_printf(bio_err, "no elliptic curve parameters\n");
469 BIO_printf(bio_err, "checking elliptic curve parameters: ");
470 if (!EC_GROUP_check(group, NULL))
471 {
472 BIO_printf(bio_err, "failed\n");
473 ERR_print_errors(bio_err);
474 }
475 else
476 BIO_printf(bio_err, "ok\n");
477
478 }
479
480 if (C)
481 {
482 size_t buf_len = 0, tmp_len = 0;
483 const EC_POINT *point;
484 int is_prime, len = 0;
485 const EC_METHOD *meth = EC_GROUP_method_of(group);
486
487 if ((ec_p = BN_new()) == NULL || (ec_a = BN_new()) == NULL ||
488 (ec_b = BN_new()) == NULL || (ec_gen = BN_new()) == NULL ||
489 (ec_order = BN_new()) == NULL ||
490 (ec_cofactor = BN_new()) == NULL )
491 {
492 perror("OPENSSL_malloc");
493 goto end;
494 }
495
496 is_prime = (EC_METHOD_get_field_type(meth) ==
497 NID_X9_62_prime_field);
498
499 if (is_prime)
500 {
501 if (!EC_GROUP_get_curve_GFp(group, ec_p, ec_a,
502 ec_b, NULL))
503 goto end;
504 }
505 else
506 {
507 /* TODO */
508 goto end;
509 }
510
511 if ((point = EC_GROUP_get0_generator(group)) == NULL)
512 goto end;
513 if (!EC_POINT_point2bn(group, point,
514 EC_GROUP_get_point_conversion_form(group), ec_gen,
515 NULL))
516 goto end;
517 if (!EC_GROUP_get_order(group, ec_order, NULL))
518 goto end;
519 if (!EC_GROUP_get_cofactor(group, ec_cofactor, NULL))
520 goto end;
521
522 if (!ec_p || !ec_a || !ec_b || !ec_gen ||
523 !ec_order || !ec_cofactor)
524 goto end;
525
526 len = BN_num_bits(ec_order);
527
528 if ((tmp_len = (size_t)BN_num_bytes(ec_p)) > buf_len)
529 buf_len = tmp_len;
530 if ((tmp_len = (size_t)BN_num_bytes(ec_a)) > buf_len)
531 buf_len = tmp_len;
532 if ((tmp_len = (size_t)BN_num_bytes(ec_b)) > buf_len)
533 buf_len = tmp_len;
534 if ((tmp_len = (size_t)BN_num_bytes(ec_gen)) > buf_len)
535 buf_len = tmp_len;
536 if ((tmp_len = (size_t)BN_num_bytes(ec_order)) > buf_len)
537 buf_len = tmp_len;
538 if ((tmp_len = (size_t)BN_num_bytes(ec_cofactor)) > buf_len)
539 buf_len = tmp_len;
540
541 buffer = (unsigned char *)OPENSSL_malloc(buf_len);
542
543 if (buffer == NULL)
544 {
545 perror("OPENSSL_malloc");
546 goto end;
547 }
548
549 ecparam_print_var(out, ec_p, "ec_p", len, buffer);
550 ecparam_print_var(out, ec_a, "ec_a", len, buffer);
551 ecparam_print_var(out, ec_b, "ec_b", len, buffer);
552 ecparam_print_var(out, ec_gen, "ec_gen", len, buffer);
553 ecparam_print_var(out, ec_order, "ec_order", len, buffer);
554 ecparam_print_var(out, ec_cofactor, "ec_cofactor", len,
555 buffer);
556
557 BIO_printf(out, "\n\n");
558
559 BIO_printf(out, "EC_GROUP *get_ec_group_%d(void)\n\t{\n", len);
560 BIO_printf(out, "\tint ok=0;\n");
561 BIO_printf(out, "\tEC_GROUP *group = NULL;\n");
562 BIO_printf(out, "\tEC_POINT *point = NULL;\n");
563 BIO_printf(out, "\tBIGNUM *tmp_1 = NULL, *tmp_2 = NULL, "
564 "*tmp_3 = NULL;\n\n");
565 BIO_printf(out, "\tif ((tmp_1 = BN_bin2bn(ec_p_%d, "
566 "sizeof(ec_p_%d), NULL)) == NULL)\n\t\t"
567 "goto err;\n", len, len);
568 BIO_printf(out, "\tif ((tmp_2 = BN_bin2bn(ec_a_%d, "
569 "sizeof(ec_a_%d), NULL)) == NULL)\n\t\t"
570 "goto err;\n", len, len);
571 BIO_printf(out, "\tif ((tmp_3 = BN_bin2bn(ec_b_%d, "
572 "sizeof(ec_b_%d), NULL)) == NULL)\n\t\t"
573 "goto err;\n", len, len);
574 if (is_prime)
575 {
576 BIO_printf(out, "\tif ((group = EC_GROUP_new_curve_"
577 "GFp(tmp_1, tmp_2, tmp_3, NULL)) == NULL)"
578 "\n\t\tgoto err;\n\n");
579 }
580 else
581 {
582 /* TODO */
583 goto end;
584 }
585 BIO_printf(out, "\t/* build generator */\n");
586 BIO_printf(out, "\tif ((tmp_1 = BN_bin2bn(ec_gen_%d, "
587 "sizeof(ec_gen_%d), tmp_1)) == NULL)"
588 "\n\t\tgoto err;\n", len, len);
589 BIO_printf(out, "\tpoint = EC_POINT_bn2point(group, tmp_1, "
590 "NULL, NULL);\n");
591 BIO_printf(out, "\tif (point == NULL)\n\t\tgoto err;\n");
592 BIO_printf(out, "\tif ((tmp_2 = BN_bin2bn(ec_order_%d, "
593 "sizeof(ec_order_%d), tmp_2)) == NULL)"
594 "\n\t\tgoto err;\n", len, len);
595 BIO_printf(out, "\tif ((tmp_3 = BN_bin2bn(ec_cofactor_%d, "
596 "sizeof(ec_cofactor_%d), tmp_3)) == NULL)"
597 "\n\t\tgoto err;\n", len, len);
598 BIO_printf(out, "\tif (!EC_GROUP_set_generator(group, point,"
599 " tmp_2, tmp_3))\n\t\tgoto err;\n");
600 BIO_printf(out, "\n\tok=1;\n");
601 BIO_printf(out, "err:\n");
602 BIO_printf(out, "\tif (tmp_1)\n\t\tBN_free(tmp_1);\n");
603 BIO_printf(out, "\tif (tmp_2)\n\t\tBN_free(tmp_2);\n");
604 BIO_printf(out, "\tif (tmp_3)\n\t\tBN_free(tmp_3);\n");
605 BIO_printf(out, "\tif (point)\n\t\tEC_POINT_free(point);\n");
606 BIO_printf(out, "\tif (!ok)\n");
607 BIO_printf(out, "\t\t{\n");
608 BIO_printf(out, "\t\tEC_GROUP_free(group);\n");
609 BIO_printf(out, "\t\tgroup = NULL;\n");
610 BIO_printf(out, "\t\t}\n");
611 BIO_printf(out, "\treturn(group);\n\t}\n");
612 }
613
614 if (!noout)
615 {
616 if (outformat == FORMAT_ASN1)
617 i = i2d_ECPKParameters_bio(out, group);
618 else if (outformat == FORMAT_PEM)
619 i = PEM_write_bio_ECPKParameters(out, group);
620 else
621 {
622 BIO_printf(bio_err,"bad output format specified for"
623 " outfile\n");
624 goto end;
625 }
626 if (!i)
627 {
628 BIO_printf(bio_err, "unable to write elliptic "
629 "curve parameters\n");
630 ERR_print_errors(bio_err);
631 goto end;
632 }
633 }
634
635 if (need_rand)
636 {
637 app_RAND_load_file(NULL, bio_err, (inrand != NULL));
638 if (inrand != NULL)
639 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
640 app_RAND_load_files(inrand));
641 }
642
643 if (genkey)
644 {
645 EC_KEY *eckey = EC_KEY_new();
646
647 if (eckey == NULL)
648 goto end;
649
650 assert(need_rand);
651
652 if (EC_KEY_set_group(eckey, group) == 0)
653 goto end;
654
655 if (!EC_KEY_generate_key(eckey))
656 {
657 EC_KEY_free(eckey);
658 goto end;
659 }
660 if (outformat == FORMAT_ASN1)
661 i = i2d_ECPrivateKey_bio(out, eckey);
662 else if (outformat == FORMAT_PEM)
663 i = PEM_write_bio_ECPrivateKey(out, eckey, NULL,
664 NULL, 0, NULL, NULL);
665 else
666 {
667 BIO_printf(bio_err, "bad output format specified "
668 "for outfile\n");
669 EC_KEY_free(eckey);
670 goto end;
671 }
672 EC_KEY_free(eckey);
673 }
674
675 if (need_rand)
676 app_RAND_write_file(NULL, bio_err);
677
678 ret=0;
679 end:
680 if (ec_p)
681 BN_free(ec_p);
682 if (ec_a)
683 BN_free(ec_a);
684 if (ec_b)
685 BN_free(ec_b);
686 if (ec_gen)
687 BN_free(ec_gen);
688 if (ec_order)
689 BN_free(ec_order);
690 if (ec_cofactor)
691 BN_free(ec_cofactor);
692 if (buffer)
693 OPENSSL_free(buffer);
694 if (in != NULL)
695 BIO_free(in);
696 if (out != NULL)
697 BIO_free_all(out);
698 if (group != NULL)
699 EC_GROUP_free(group);
700 apps_shutdown();
701 OPENSSL_EXIT(ret);
702 }
703
704 static int ecparam_print_var(BIO *out, BIGNUM *in, const char *var,
705 int len, unsigned char *buffer)
706 {
707 BIO_printf(out, "static unsigned char %s_%d[] = {", var, len);
708 if (BN_is_zero(in))
709 BIO_printf(out, "\n\t0x00");
710 else
711 {
712 int i, l;
713
714 l = BN_bn2bin(in, buffer);
715 for (i=0; i<l-1; i++)
716 {
717 if ((i%12) == 0)
718 BIO_printf(out, "\n\t");
719 BIO_printf(out, "0x%02X,", buffer[i]);
720 }
721 if ((i%12) == 0)
722 BIO_printf(out, "\n\t");
723 BIO_printf(out, "0x%02X", buffer[i]);
724 }
725 BIO_printf(out, "\n\t};\n\n");
726 return 1;
727 }
728 #endif
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