Don't compile heartbeat test code on Windows (for now).
[openssl.git] / apps / ecparam.c
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 chosen 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         char    *engine = NULL;
133
134         BIGNUM  *ec_p = NULL, *ec_a = NULL, *ec_b = NULL,
135                 *ec_gen = NULL, *ec_order = NULL, *ec_cofactor = NULL;
136         unsigned char *buffer = NULL;
137
138         apps_startup();
139
140         if (bio_err == NULL)
141                 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
142                         BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
143
144         if (!load_config(bio_err, NULL))
145                 goto end;
146
147         informat=FORMAT_PEM;
148         outformat=FORMAT_PEM;
149
150         prog=argv[0];
151         argc--;
152         argv++;
153         while (argc >= 1)
154                 {
155                 if      (strcmp(*argv,"-inform") == 0)
156                         {
157                         if (--argc < 1) goto bad;
158                         informat=str2fmt(*(++argv));
159                         }
160                 else if (strcmp(*argv,"-outform") == 0)
161                         {
162                         if (--argc < 1) goto bad;
163                         outformat=str2fmt(*(++argv));
164                         }
165                 else if (strcmp(*argv,"-in") == 0)
166                         {
167                         if (--argc < 1) goto bad;
168                         infile= *(++argv);
169                         }
170                 else if (strcmp(*argv,"-out") == 0)
171                         {
172                         if (--argc < 1) goto bad;
173                         outfile= *(++argv);
174                         }
175                 else if (strcmp(*argv,"-text") == 0)
176                         text = 1;
177                 else if (strcmp(*argv,"-C") == 0)
178                         C = 1;
179                 else if (strcmp(*argv,"-check") == 0)
180                         check = 1;
181                 else if (strcmp (*argv, "-name") == 0)
182                         {
183                         if (--argc < 1)
184                                 goto bad;
185                         curve_name = *(++argv);
186                         }
187                 else if (strcmp(*argv, "-list_curves") == 0)
188                         list_curves = 1;
189                 else if (strcmp(*argv, "-conv_form") == 0)
190                         {
191                         if (--argc < 1)
192                                 goto bad;
193                         ++argv;
194                         new_form = 1;
195                         if (strcmp(*argv, "compressed") == 0)
196                                 form = POINT_CONVERSION_COMPRESSED;
197                         else if (strcmp(*argv, "uncompressed") == 0)
198                                 form = POINT_CONVERSION_UNCOMPRESSED;
199                         else if (strcmp(*argv, "hybrid") == 0)
200                                 form = POINT_CONVERSION_HYBRID;
201                         else
202                                 goto bad;
203                         }
204                 else if (strcmp(*argv, "-param_enc") == 0)
205                         {
206                         if (--argc < 1)
207                                 goto bad;
208                         ++argv;
209                         new_asn1_flag = 1;
210                         if (strcmp(*argv, "named_curve") == 0)
211                                 asn1_flag = OPENSSL_EC_NAMED_CURVE;
212                         else if (strcmp(*argv, "explicit") == 0)
213                                 asn1_flag = 0;
214                         else
215                                 goto bad;
216                         }
217                 else if (strcmp(*argv, "-no_seed") == 0)
218                         no_seed = 1;
219                 else if (strcmp(*argv, "-noout") == 0)
220                         noout=1;
221                 else if (strcmp(*argv,"-genkey") == 0)
222                         {
223                         genkey=1;
224                         need_rand=1;
225                         }
226                 else if (strcmp(*argv, "-rand") == 0)
227                         {
228                         if (--argc < 1) goto bad;
229                         inrand= *(++argv);
230                         need_rand=1;
231                         }
232                 else if(strcmp(*argv, "-engine") == 0)
233                         {
234                         if (--argc < 1) goto bad;
235                         engine = *(++argv);
236                         }       
237                 else
238                         {
239                         BIO_printf(bio_err,"unknown option %s\n",*argv);
240                         badops=1;
241                         break;
242                         }
243                 argc--;
244                 argv++;
245                 }
246
247         if (badops)
248                 {
249 bad:
250                 BIO_printf(bio_err, "%s [options] <infile >outfile\n",prog);
251                 BIO_printf(bio_err, "where options are\n");
252                 BIO_printf(bio_err, " -inform arg       input format - "
253                                 "default PEM (DER or PEM)\n");
254                 BIO_printf(bio_err, " -outform arg      output format - "
255                                 "default PEM\n");
256                 BIO_printf(bio_err, " -in  arg          input file  - "
257                                 "default stdin\n");
258                 BIO_printf(bio_err, " -out arg          output file - "
259                                 "default stdout\n");
260                 BIO_printf(bio_err, " -noout            do not print the "
261                                 "ec parameter\n");
262                 BIO_printf(bio_err, " -text             print the ec "
263                                 "parameters in text form\n");
264                 BIO_printf(bio_err, " -check            validate the ec "
265                                 "parameters\n");
266                 BIO_printf(bio_err, " -C                print a 'C' "
267                                 "function creating the parameters\n");
268                 BIO_printf(bio_err, " -name arg         use the "
269                                 "ec parameters with 'short name' name\n");
270                 BIO_printf(bio_err, " -list_curves      prints a list of "
271                                 "all currently available curve 'short names'\n");
272                 BIO_printf(bio_err, " -conv_form arg    specifies the "
273                                 "point conversion form \n");
274                 BIO_printf(bio_err, "                   possible values:"
275                                 " compressed\n");
276                 BIO_printf(bio_err, "                                   "
277                                 " uncompressed (default)\n");
278                 BIO_printf(bio_err, "                                   "
279                                 " hybrid\n");
280                 BIO_printf(bio_err, " -param_enc arg    specifies the way"
281                                 " the ec parameters are encoded\n");
282                 BIO_printf(bio_err, "                   in the asn1 der "
283                                 "encoding\n");
284                 BIO_printf(bio_err, "                   possible values:"
285                                 " named_curve (default)\n");
286                 BIO_printf(bio_err, "                                   "
287                                 " explicit\n");
288                 BIO_printf(bio_err, " -no_seed          if 'explicit'"
289                                 " parameters are chosen do not"
290                                 " use the seed\n");
291                 BIO_printf(bio_err, " -genkey           generate ec"
292                                 " key\n");
293                 BIO_printf(bio_err, " -rand file        files to use for"
294                                 " random number input\n");
295                 BIO_printf(bio_err, " -engine e         use engine e, "
296                                 "possibly a hardware device\n");
297                 goto end;
298                 }
299
300         ERR_load_crypto_strings();
301
302         in=BIO_new(BIO_s_file());
303         out=BIO_new(BIO_s_file());
304         if ((in == NULL) || (out == NULL))
305                 {
306                 ERR_print_errors(bio_err);
307                 goto end;
308                 }
309
310         if (infile == NULL)
311                 BIO_set_fp(in,stdin,BIO_NOCLOSE);
312         else
313                 {
314                 if (BIO_read_filename(in,infile) <= 0)
315                         {
316                         perror(infile);
317                         goto end;
318                         }
319                 }
320         if (outfile == NULL)
321                 {
322                 BIO_set_fp(out,stdout,BIO_NOCLOSE);
323 #ifdef OPENSSL_SYS_VMS
324                 {
325                 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
326                 out = BIO_push(tmpbio, out);
327                 }
328 #endif
329                 }
330         else
331                 {
332                 if (BIO_write_filename(out,outfile) <= 0)
333                         {
334                         perror(outfile);
335                         goto end;
336                         }
337                 }
338
339 #ifndef OPENSSL_NO_ENGINE
340         setup_engine(bio_err, engine, 0);
341 #endif
342
343         if (list_curves)
344                 {
345                 EC_builtin_curve *curves = NULL;
346                 size_t crv_len = 0;
347                 size_t n = 0;
348
349                 crv_len = EC_get_builtin_curves(NULL, 0);
350
351                 curves = OPENSSL_malloc((int)(sizeof(EC_builtin_curve) * crv_len));
352
353                 if (curves == NULL)
354                         goto end;
355
356                 if (!EC_get_builtin_curves(curves, crv_len))
357                         {
358                         OPENSSL_free(curves);
359                         goto end;
360                         }
361
362                 
363                 for (n = 0; n < crv_len; n++)
364                         {
365                         const char *comment;
366                         const char *sname;
367                         comment = curves[n].comment;
368                         sname   = OBJ_nid2sn(curves[n].nid);
369                         if (comment == NULL)
370                                 comment = "CURVE DESCRIPTION NOT AVAILABLE";
371                         if (sname == NULL)
372                                 sname = "";
373
374                         BIO_printf(out, "  %-10s: ", sname);
375                         BIO_printf(out, "%s\n", comment);
376                         } 
377
378                 OPENSSL_free(curves);
379                 ret = 0;
380                 goto end;
381                 }
382
383         if (curve_name != NULL)
384                 {
385                 int nid;
386
387                 /* workaround for the SECG curve names secp192r1
388                  * and secp256r1 (which are the same as the curves
389                  * prime192v1 and prime256v1 defined in X9.62)
390                  */
391                 if (!strcmp(curve_name, "secp192r1"))
392                         {
393                         BIO_printf(bio_err, "using curve name prime192v1 "
394                                 "instead of secp192r1\n");
395                         nid = NID_X9_62_prime192v1;
396                         }
397                 else if (!strcmp(curve_name, "secp256r1"))
398                         {
399                         BIO_printf(bio_err, "using curve name prime256v1 "
400                                 "instead of secp256r1\n");
401                         nid = NID_X9_62_prime256v1;
402                         }
403                 else
404                         nid = OBJ_sn2nid(curve_name);
405
406                 if (nid == 0)
407                         nid = EC_curve_nist2nid(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 #else /* !OPENSSL_NO_EC */
729
730 # if PEDANTIC
731 static void *dummy=&dummy;
732 # endif
733
734 #endif