diff options
Diffstat (limited to 'src/usr.bin/openssl/ecparam.c')
-rw-r--r-- | src/usr.bin/openssl/ecparam.c | 613 |
1 files changed, 613 insertions, 0 deletions
diff --git a/src/usr.bin/openssl/ecparam.c b/src/usr.bin/openssl/ecparam.c new file mode 100644 index 0000000000..9623cb96ce --- /dev/null +++ b/src/usr.bin/openssl/ecparam.c | |||
@@ -0,0 +1,613 @@ | |||
1 | /* $OpenBSD: ecparam.c,v 1.1 2014/08/26 17:47:24 jsing Exp $ */ | ||
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 | |||
74 | #ifndef OPENSSL_NO_EC | ||
75 | |||
76 | #include <stdio.h> | ||
77 | #include <stdlib.h> | ||
78 | #include <string.h> | ||
79 | #include <time.h> | ||
80 | |||
81 | #include "apps.h" | ||
82 | |||
83 | #include <openssl/bio.h> | ||
84 | #include <openssl/bn.h> | ||
85 | #include <openssl/ec.h> | ||
86 | #include <openssl/err.h> | ||
87 | #include <openssl/pem.h> | ||
88 | #include <openssl/x509.h> | ||
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 | * -engine e - use engine e, possibly a hardware device | ||
111 | */ | ||
112 | |||
113 | |||
114 | static int ecparam_print_var(BIO *, BIGNUM *, const char *, int, unsigned char *); | ||
115 | |||
116 | int ecparam_main(int, char **); | ||
117 | |||
118 | int | ||
119 | ecparam_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; | ||
127 | int list_curves = 0, no_seed = 0, check = 0, badops = 0, text = 0, | ||
128 | i, 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, *ec_gen = NULL, | ||
135 | *ec_order = NULL, *ec_cofactor = NULL; | ||
136 | unsigned char *buffer = NULL; | ||
137 | |||
138 | informat = FORMAT_PEM; | ||
139 | outformat = FORMAT_PEM; | ||
140 | |||
141 | prog = argv[0]; | ||
142 | argc--; | ||
143 | argv++; | ||
144 | while (argc >= 1) { | ||
145 | if (strcmp(*argv, "-inform") == 0) { | ||
146 | if (--argc < 1) | ||
147 | goto bad; | ||
148 | informat = str2fmt(*(++argv)); | ||
149 | } else if (strcmp(*argv, "-outform") == 0) { | ||
150 | if (--argc < 1) | ||
151 | goto bad; | ||
152 | outformat = str2fmt(*(++argv)); | ||
153 | } else if (strcmp(*argv, "-in") == 0) { | ||
154 | if (--argc < 1) | ||
155 | goto bad; | ||
156 | infile = *(++argv); | ||
157 | } else if (strcmp(*argv, "-out") == 0) { | ||
158 | if (--argc < 1) | ||
159 | goto bad; | ||
160 | outfile = *(++argv); | ||
161 | } else if (strcmp(*argv, "-text") == 0) | ||
162 | text = 1; | ||
163 | else if (strcmp(*argv, "-C") == 0) | ||
164 | C = 1; | ||
165 | else if (strcmp(*argv, "-check") == 0) | ||
166 | check = 1; | ||
167 | else if (strcmp(*argv, "-name") == 0) { | ||
168 | if (--argc < 1) | ||
169 | goto bad; | ||
170 | curve_name = *(++argv); | ||
171 | } else if (strcmp(*argv, "-list_curves") == 0) | ||
172 | list_curves = 1; | ||
173 | else if (strcmp(*argv, "-conv_form") == 0) { | ||
174 | if (--argc < 1) | ||
175 | goto bad; | ||
176 | ++argv; | ||
177 | new_form = 1; | ||
178 | if (strcmp(*argv, "compressed") == 0) | ||
179 | form = POINT_CONVERSION_COMPRESSED; | ||
180 | else if (strcmp(*argv, "uncompressed") == 0) | ||
181 | form = POINT_CONVERSION_UNCOMPRESSED; | ||
182 | else if (strcmp(*argv, "hybrid") == 0) | ||
183 | form = POINT_CONVERSION_HYBRID; | ||
184 | else | ||
185 | goto bad; | ||
186 | } else if (strcmp(*argv, "-param_enc") == 0) { | ||
187 | if (--argc < 1) | ||
188 | goto bad; | ||
189 | ++argv; | ||
190 | new_asn1_flag = 1; | ||
191 | if (strcmp(*argv, "named_curve") == 0) | ||
192 | asn1_flag = OPENSSL_EC_NAMED_CURVE; | ||
193 | else if (strcmp(*argv, "explicit") == 0) | ||
194 | asn1_flag = 0; | ||
195 | else | ||
196 | goto bad; | ||
197 | } else if (strcmp(*argv, "-no_seed") == 0) | ||
198 | no_seed = 1; | ||
199 | else if (strcmp(*argv, "-noout") == 0) | ||
200 | noout = 1; | ||
201 | else if (strcmp(*argv, "-genkey") == 0) { | ||
202 | genkey = 1; | ||
203 | } else if (strcmp(*argv, "-engine") == 0) { | ||
204 | if (--argc < 1) | ||
205 | goto bad; | ||
206 | engine = *(++argv); | ||
207 | } else { | ||
208 | BIO_printf(bio_err, "unknown option %s\n", *argv); | ||
209 | badops = 1; | ||
210 | break; | ||
211 | } | ||
212 | argc--; | ||
213 | argv++; | ||
214 | } | ||
215 | |||
216 | if (badops) { | ||
217 | bad: | ||
218 | BIO_printf(bio_err, "%s [options] <infile >outfile\n", prog); | ||
219 | BIO_printf(bio_err, "where options are\n"); | ||
220 | BIO_printf(bio_err, " -inform arg input format - " | ||
221 | "default PEM (DER or PEM)\n"); | ||
222 | BIO_printf(bio_err, " -outform arg output format - " | ||
223 | "default PEM\n"); | ||
224 | BIO_printf(bio_err, " -in arg input file - " | ||
225 | "default stdin\n"); | ||
226 | BIO_printf(bio_err, " -out arg output file - " | ||
227 | "default stdout\n"); | ||
228 | BIO_printf(bio_err, " -noout do not print the " | ||
229 | "ec parameter\n"); | ||
230 | BIO_printf(bio_err, " -text print the ec " | ||
231 | "parameters in text form\n"); | ||
232 | BIO_printf(bio_err, " -check validate the ec " | ||
233 | "parameters\n"); | ||
234 | BIO_printf(bio_err, " -C print a 'C' " | ||
235 | "function creating the parameters\n"); | ||
236 | BIO_printf(bio_err, " -name arg use the " | ||
237 | "ec parameters with 'short name' name\n"); | ||
238 | BIO_printf(bio_err, " -list_curves prints a list of " | ||
239 | "all currently available curve 'short names'\n"); | ||
240 | BIO_printf(bio_err, " -conv_form arg specifies the " | ||
241 | "point conversion form \n"); | ||
242 | BIO_printf(bio_err, " possible values:" | ||
243 | " compressed\n"); | ||
244 | BIO_printf(bio_err, " " | ||
245 | " uncompressed (default)\n"); | ||
246 | BIO_printf(bio_err, " " | ||
247 | " hybrid\n"); | ||
248 | BIO_printf(bio_err, " -param_enc arg specifies the way" | ||
249 | " the ec parameters are encoded\n"); | ||
250 | BIO_printf(bio_err, " in the asn1 der " | ||
251 | "encoding\n"); | ||
252 | BIO_printf(bio_err, " possible values:" | ||
253 | " named_curve (default)\n"); | ||
254 | BIO_printf(bio_err, " " | ||
255 | " explicit\n"); | ||
256 | BIO_printf(bio_err, " -no_seed if 'explicit'" | ||
257 | " parameters are chosen do not" | ||
258 | " use the seed\n"); | ||
259 | BIO_printf(bio_err, " -genkey generate ec" | ||
260 | " key\n"); | ||
261 | BIO_printf(bio_err, " -engine e use engine e, " | ||
262 | "possibly a hardware device\n"); | ||
263 | goto end; | ||
264 | } | ||
265 | ERR_load_crypto_strings(); | ||
266 | |||
267 | in = BIO_new(BIO_s_file()); | ||
268 | out = BIO_new(BIO_s_file()); | ||
269 | if ((in == NULL) || (out == NULL)) { | ||
270 | ERR_print_errors(bio_err); | ||
271 | goto end; | ||
272 | } | ||
273 | if (infile == NULL) | ||
274 | BIO_set_fp(in, stdin, BIO_NOCLOSE); | ||
275 | else { | ||
276 | if (BIO_read_filename(in, infile) <= 0) { | ||
277 | perror(infile); | ||
278 | goto end; | ||
279 | } | ||
280 | } | ||
281 | if (outfile == NULL) { | ||
282 | BIO_set_fp(out, stdout, BIO_NOCLOSE); | ||
283 | } else { | ||
284 | if (BIO_write_filename(out, outfile) <= 0) { | ||
285 | perror(outfile); | ||
286 | goto end; | ||
287 | } | ||
288 | } | ||
289 | |||
290 | #ifndef OPENSSL_NO_ENGINE | ||
291 | setup_engine(bio_err, engine, 0); | ||
292 | #endif | ||
293 | |||
294 | if (list_curves) { | ||
295 | EC_builtin_curve *curves = NULL; | ||
296 | size_t crv_len = 0; | ||
297 | size_t n = 0; | ||
298 | |||
299 | crv_len = EC_get_builtin_curves(NULL, 0); | ||
300 | |||
301 | curves = reallocarray(NULL, crv_len, sizeof(EC_builtin_curve)); | ||
302 | |||
303 | if (curves == NULL) | ||
304 | goto end; | ||
305 | |||
306 | if (!EC_get_builtin_curves(curves, crv_len)) { | ||
307 | free(curves); | ||
308 | goto end; | ||
309 | } | ||
310 | for (n = 0; n < crv_len; n++) { | ||
311 | const char *comment; | ||
312 | const char *sname; | ||
313 | comment = curves[n].comment; | ||
314 | sname = OBJ_nid2sn(curves[n].nid); | ||
315 | if (comment == NULL) | ||
316 | comment = "CURVE DESCRIPTION NOT AVAILABLE"; | ||
317 | if (sname == NULL) | ||
318 | sname = ""; | ||
319 | |||
320 | BIO_printf(out, " %-10s: ", sname); | ||
321 | BIO_printf(out, "%s\n", comment); | ||
322 | } | ||
323 | |||
324 | free(curves); | ||
325 | ret = 0; | ||
326 | goto end; | ||
327 | } | ||
328 | if (curve_name != NULL) { | ||
329 | int nid; | ||
330 | |||
331 | /* | ||
332 | * workaround for the SECG curve names secp192r1 and | ||
333 | * secp256r1 (which are the same as the curves prime192v1 and | ||
334 | * prime256v1 defined in X9.62) | ||
335 | */ | ||
336 | if (!strcmp(curve_name, "secp192r1")) { | ||
337 | BIO_printf(bio_err, "using curve name prime192v1 " | ||
338 | "instead of secp192r1\n"); | ||
339 | nid = NID_X9_62_prime192v1; | ||
340 | } else if (!strcmp(curve_name, "secp256r1")) { | ||
341 | BIO_printf(bio_err, "using curve name prime256v1 " | ||
342 | "instead of secp256r1\n"); | ||
343 | nid = NID_X9_62_prime256v1; | ||
344 | } else | ||
345 | nid = OBJ_sn2nid(curve_name); | ||
346 | |||
347 | if (nid == 0) { | ||
348 | BIO_printf(bio_err, "unknown curve name (%s)\n", | ||
349 | curve_name); | ||
350 | goto end; | ||
351 | } | ||
352 | group = EC_GROUP_new_by_curve_name(nid); | ||
353 | if (group == NULL) { | ||
354 | BIO_printf(bio_err, "unable to create curve (%s)\n", | ||
355 | curve_name); | ||
356 | goto end; | ||
357 | } | ||
358 | EC_GROUP_set_asn1_flag(group, asn1_flag); | ||
359 | EC_GROUP_set_point_conversion_form(group, form); | ||
360 | } else if (informat == FORMAT_ASN1) { | ||
361 | group = d2i_ECPKParameters_bio(in, NULL); | ||
362 | } else if (informat == FORMAT_PEM) { | ||
363 | group = PEM_read_bio_ECPKParameters(in, NULL, NULL, NULL); | ||
364 | } else { | ||
365 | BIO_printf(bio_err, "bad input format specified\n"); | ||
366 | goto end; | ||
367 | } | ||
368 | |||
369 | if (group == NULL) { | ||
370 | BIO_printf(bio_err, | ||
371 | "unable to load elliptic curve parameters\n"); | ||
372 | ERR_print_errors(bio_err); | ||
373 | goto end; | ||
374 | } | ||
375 | if (new_form) | ||
376 | EC_GROUP_set_point_conversion_form(group, form); | ||
377 | |||
378 | if (new_asn1_flag) | ||
379 | EC_GROUP_set_asn1_flag(group, asn1_flag); | ||
380 | |||
381 | if (no_seed) { | ||
382 | EC_GROUP_set_seed(group, NULL, 0); | ||
383 | } | ||
384 | if (text) { | ||
385 | if (!ECPKParameters_print(out, group, 0)) | ||
386 | goto end; | ||
387 | } | ||
388 | if (check) { | ||
389 | if (group == NULL) | ||
390 | BIO_printf(bio_err, "no elliptic curve parameters\n"); | ||
391 | BIO_printf(bio_err, "checking elliptic curve parameters: "); | ||
392 | if (!EC_GROUP_check(group, NULL)) { | ||
393 | BIO_printf(bio_err, "failed\n"); | ||
394 | ERR_print_errors(bio_err); | ||
395 | } else | ||
396 | BIO_printf(bio_err, "ok\n"); | ||
397 | |||
398 | } | ||
399 | if (C) { | ||
400 | size_t buf_len = 0, tmp_len = 0; | ||
401 | const EC_POINT *point; | ||
402 | int is_prime, len = 0; | ||
403 | const EC_METHOD *meth = EC_GROUP_method_of(group); | ||
404 | |||
405 | if ((ec_p = BN_new()) == NULL || (ec_a = BN_new()) == NULL || | ||
406 | (ec_b = BN_new()) == NULL || (ec_gen = BN_new()) == NULL || | ||
407 | (ec_order = BN_new()) == NULL || | ||
408 | (ec_cofactor = BN_new()) == NULL) { | ||
409 | perror("malloc"); | ||
410 | goto end; | ||
411 | } | ||
412 | is_prime = (EC_METHOD_get_field_type(meth) == | ||
413 | NID_X9_62_prime_field); | ||
414 | |||
415 | if (is_prime) { | ||
416 | if (!EC_GROUP_get_curve_GFp(group, ec_p, ec_a, | ||
417 | ec_b, NULL)) | ||
418 | goto end; | ||
419 | } else { | ||
420 | /* TODO */ | ||
421 | goto end; | ||
422 | } | ||
423 | |||
424 | if ((point = EC_GROUP_get0_generator(group)) == NULL) | ||
425 | goto end; | ||
426 | if (!EC_POINT_point2bn(group, point, | ||
427 | EC_GROUP_get_point_conversion_form(group), ec_gen, | ||
428 | NULL)) | ||
429 | goto end; | ||
430 | if (!EC_GROUP_get_order(group, ec_order, NULL)) | ||
431 | goto end; | ||
432 | if (!EC_GROUP_get_cofactor(group, ec_cofactor, NULL)) | ||
433 | goto end; | ||
434 | |||
435 | if (!ec_p || !ec_a || !ec_b || !ec_gen || | ||
436 | !ec_order || !ec_cofactor) | ||
437 | goto end; | ||
438 | |||
439 | len = BN_num_bits(ec_order); | ||
440 | |||
441 | if ((tmp_len = (size_t) BN_num_bytes(ec_p)) > buf_len) | ||
442 | buf_len = tmp_len; | ||
443 | if ((tmp_len = (size_t) BN_num_bytes(ec_a)) > buf_len) | ||
444 | buf_len = tmp_len; | ||
445 | if ((tmp_len = (size_t) BN_num_bytes(ec_b)) > buf_len) | ||
446 | buf_len = tmp_len; | ||
447 | if ((tmp_len = (size_t) BN_num_bytes(ec_gen)) > buf_len) | ||
448 | buf_len = tmp_len; | ||
449 | if ((tmp_len = (size_t) BN_num_bytes(ec_order)) > buf_len) | ||
450 | buf_len = tmp_len; | ||
451 | if ((tmp_len = (size_t) BN_num_bytes(ec_cofactor)) > buf_len) | ||
452 | buf_len = tmp_len; | ||
453 | |||
454 | buffer = malloc(buf_len); | ||
455 | |||
456 | if (buffer == NULL) { | ||
457 | perror("malloc"); | ||
458 | goto end; | ||
459 | } | ||
460 | ecparam_print_var(out, ec_p, "ec_p", len, buffer); | ||
461 | ecparam_print_var(out, ec_a, "ec_a", len, buffer); | ||
462 | ecparam_print_var(out, ec_b, "ec_b", len, buffer); | ||
463 | ecparam_print_var(out, ec_gen, "ec_gen", len, buffer); | ||
464 | ecparam_print_var(out, ec_order, "ec_order", len, buffer); | ||
465 | ecparam_print_var(out, ec_cofactor, "ec_cofactor", len, | ||
466 | buffer); | ||
467 | |||
468 | BIO_printf(out, "\n\n"); | ||
469 | |||
470 | BIO_printf(out, "EC_GROUP *get_ec_group_%d(void)\n\t{\n", len); | ||
471 | BIO_printf(out, "\tint ok=0;\n"); | ||
472 | BIO_printf(out, "\tEC_GROUP *group = NULL;\n"); | ||
473 | BIO_printf(out, "\tEC_POINT *point = NULL;\n"); | ||
474 | BIO_printf(out, "\tBIGNUM *tmp_1 = NULL, *tmp_2 = NULL, " | ||
475 | "*tmp_3 = NULL;\n\n"); | ||
476 | BIO_printf(out, "\tif ((tmp_1 = BN_bin2bn(ec_p_%d, " | ||
477 | "sizeof(ec_p_%d), NULL)) == NULL)\n\t\t" | ||
478 | "goto err;\n", len, len); | ||
479 | BIO_printf(out, "\tif ((tmp_2 = BN_bin2bn(ec_a_%d, " | ||
480 | "sizeof(ec_a_%d), NULL)) == NULL)\n\t\t" | ||
481 | "goto err;\n", len, len); | ||
482 | BIO_printf(out, "\tif ((tmp_3 = BN_bin2bn(ec_b_%d, " | ||
483 | "sizeof(ec_b_%d), NULL)) == NULL)\n\t\t" | ||
484 | "goto err;\n", len, len); | ||
485 | if (is_prime) { | ||
486 | BIO_printf(out, "\tif ((group = EC_GROUP_new_curve_" | ||
487 | "GFp(tmp_1, tmp_2, tmp_3, NULL)) == NULL)" | ||
488 | "\n\t\tgoto err;\n\n"); | ||
489 | } else { | ||
490 | /* TODO */ | ||
491 | goto end; | ||
492 | } | ||
493 | BIO_printf(out, "\t/* build generator */\n"); | ||
494 | BIO_printf(out, "\tif ((tmp_1 = BN_bin2bn(ec_gen_%d, " | ||
495 | "sizeof(ec_gen_%d), tmp_1)) == NULL)" | ||
496 | "\n\t\tgoto err;\n", len, len); | ||
497 | BIO_printf(out, "\tpoint = EC_POINT_bn2point(group, tmp_1, " | ||
498 | "NULL, NULL);\n"); | ||
499 | BIO_printf(out, "\tif (point == NULL)\n\t\tgoto err;\n"); | ||
500 | BIO_printf(out, "\tif ((tmp_2 = BN_bin2bn(ec_order_%d, " | ||
501 | "sizeof(ec_order_%d), tmp_2)) == NULL)" | ||
502 | "\n\t\tgoto err;\n", len, len); | ||
503 | BIO_printf(out, "\tif ((tmp_3 = BN_bin2bn(ec_cofactor_%d, " | ||
504 | "sizeof(ec_cofactor_%d), tmp_3)) == NULL)" | ||
505 | "\n\t\tgoto err;\n", len, len); | ||
506 | BIO_printf(out, "\tif (!EC_GROUP_set_generator(group, point," | ||
507 | " tmp_2, tmp_3))\n\t\tgoto err;\n"); | ||
508 | BIO_printf(out, "\n\tok=1;\n"); | ||
509 | BIO_printf(out, "err:\n"); | ||
510 | BIO_printf(out, "\tif (tmp_1)\n\t\tBN_free(tmp_1);\n"); | ||
511 | BIO_printf(out, "\tif (tmp_2)\n\t\tBN_free(tmp_2);\n"); | ||
512 | BIO_printf(out, "\tif (tmp_3)\n\t\tBN_free(tmp_3);\n"); | ||
513 | BIO_printf(out, "\tif (point)\n\t\tEC_POINT_free(point);\n"); | ||
514 | BIO_printf(out, "\tif (!ok)\n"); | ||
515 | BIO_printf(out, "\t\t{\n"); | ||
516 | BIO_printf(out, "\t\tEC_GROUP_free(group);\n"); | ||
517 | BIO_printf(out, "\t\tgroup = NULL;\n"); | ||
518 | BIO_printf(out, "\t\t}\n"); | ||
519 | BIO_printf(out, "\treturn(group);\n\t}\n"); | ||
520 | } | ||
521 | if (!noout) { | ||
522 | if (outformat == FORMAT_ASN1) | ||
523 | i = i2d_ECPKParameters_bio(out, group); | ||
524 | else if (outformat == FORMAT_PEM) | ||
525 | i = PEM_write_bio_ECPKParameters(out, group); | ||
526 | else { | ||
527 | BIO_printf(bio_err, "bad output format specified for" | ||
528 | " outfile\n"); | ||
529 | goto end; | ||
530 | } | ||
531 | if (!i) { | ||
532 | BIO_printf(bio_err, "unable to write elliptic " | ||
533 | "curve parameters\n"); | ||
534 | ERR_print_errors(bio_err); | ||
535 | goto end; | ||
536 | } | ||
537 | } | ||
538 | if (genkey) { | ||
539 | EC_KEY *eckey = EC_KEY_new(); | ||
540 | |||
541 | if (eckey == NULL) | ||
542 | goto end; | ||
543 | |||
544 | if (EC_KEY_set_group(eckey, group) == 0) { | ||
545 | EC_KEY_free(eckey); | ||
546 | goto end; | ||
547 | } | ||
548 | |||
549 | if (!EC_KEY_generate_key(eckey)) { | ||
550 | EC_KEY_free(eckey); | ||
551 | goto end; | ||
552 | } | ||
553 | if (outformat == FORMAT_ASN1) | ||
554 | i = i2d_ECPrivateKey_bio(out, eckey); | ||
555 | else if (outformat == FORMAT_PEM) | ||
556 | i = PEM_write_bio_ECPrivateKey(out, eckey, NULL, | ||
557 | NULL, 0, NULL, NULL); | ||
558 | else { | ||
559 | BIO_printf(bio_err, "bad output format specified " | ||
560 | "for outfile\n"); | ||
561 | EC_KEY_free(eckey); | ||
562 | goto end; | ||
563 | } | ||
564 | EC_KEY_free(eckey); | ||
565 | } | ||
566 | ret = 0; | ||
567 | end: | ||
568 | if (ec_p) | ||
569 | BN_free(ec_p); | ||
570 | if (ec_a) | ||
571 | BN_free(ec_a); | ||
572 | if (ec_b) | ||
573 | BN_free(ec_b); | ||
574 | if (ec_gen) | ||
575 | BN_free(ec_gen); | ||
576 | if (ec_order) | ||
577 | BN_free(ec_order); | ||
578 | if (ec_cofactor) | ||
579 | BN_free(ec_cofactor); | ||
580 | free(buffer); | ||
581 | BIO_free(in); | ||
582 | if (out != NULL) | ||
583 | BIO_free_all(out); | ||
584 | if (group != NULL) | ||
585 | EC_GROUP_free(group); | ||
586 | |||
587 | return (ret); | ||
588 | } | ||
589 | |||
590 | static int | ||
591 | ecparam_print_var(BIO * out, BIGNUM * in, const char *var, | ||
592 | int len, unsigned char *buffer) | ||
593 | { | ||
594 | BIO_printf(out, "static unsigned char %s_%d[] = {", var, len); | ||
595 | if (BN_is_zero(in)) | ||
596 | BIO_printf(out, "\n\t0x00"); | ||
597 | else { | ||
598 | int i, l; | ||
599 | |||
600 | l = BN_bn2bin(in, buffer); | ||
601 | for (i = 0; i < l - 1; i++) { | ||
602 | if ((i % 12) == 0) | ||
603 | BIO_printf(out, "\n\t"); | ||
604 | BIO_printf(out, "0x%02X,", buffer[i]); | ||
605 | } | ||
606 | if ((i % 12) == 0) | ||
607 | BIO_printf(out, "\n\t"); | ||
608 | BIO_printf(out, "0x%02X", buffer[i]); | ||
609 | } | ||
610 | BIO_printf(out, "\n\t};\n\n"); | ||
611 | return 1; | ||
612 | } | ||
613 | #endif | ||