| OLD | NEW |
|---|
| (Empty) |
| 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 name
s' | |
| 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 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 choosen 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 { | |
| 408 BIO_printf(bio_err, "unknown curve name (%s)\n", | |
| 409 curve_name); | |
| 410 goto end; | |
| 411 } | |
| 412 | |
| 413 group = EC_GROUP_new_by_curve_name(nid); | |
| 414 if (group == NULL) | |
| 415 { | |
| 416 BIO_printf(bio_err, "unable to create curve (%s)\n", | |
| 417 curve_name); | |
| 418 goto end; | |
| 419 } | |
| 420 EC_GROUP_set_asn1_flag(group, asn1_flag); | |
| 421 EC_GROUP_set_point_conversion_form(group, form); | |
| 422 } | |
| 423 else if (informat == FORMAT_ASN1) | |
| 424 { | |
| 425 group = d2i_ECPKParameters_bio(in, NULL); | |
| 426 } | |
| 427 else if (informat == FORMAT_PEM) | |
| 428 { | |
| 429 group = PEM_read_bio_ECPKParameters(in,NULL,NULL,NULL); | |
| 430 } | |
| 431 else | |
| 432 { | |
| 433 BIO_printf(bio_err, "bad input format specified\n"); | |
| 434 goto end; | |
| 435 } | |
| 436 | |
| 437 if (group == NULL) | |
| 438 { | |
| 439 BIO_printf(bio_err, | |
| 440 "unable to load elliptic curve parameters\n"); | |
| 441 ERR_print_errors(bio_err); | |
| 442 goto end; | |
| 443 } | |
| 444 | |
| 445 if (new_form) | |
| 446 EC_GROUP_set_point_conversion_form(group, form); | |
| 447 | |
| 448 if (new_asn1_flag) | |
| 449 EC_GROUP_set_asn1_flag(group, asn1_flag); | |
| 450 | |
| 451 if (no_seed) | |
| 452 { | |
| 453 EC_GROUP_set_seed(group, NULL, 0); | |
| 454 } | |
| 455 | |
| 456 if (text) | |
| 457 { | |
| 458 if (!ECPKParameters_print(out, group, 0)) | |
| 459 goto end; | |
| 460 } | |
| 461 | |
| 462 if (check) | |
| 463 { | |
| 464 if (group == NULL) | |
| 465 BIO_printf(bio_err, "no elliptic curve parameters\n"); | |
| 466 BIO_printf(bio_err, "checking elliptic curve parameters: "); | |
| 467 if (!EC_GROUP_check(group, NULL)) | |
| 468 { | |
| 469 BIO_printf(bio_err, "failed\n"); | |
| 470 ERR_print_errors(bio_err); | |
| 471 } | |
| 472 else | |
| 473 BIO_printf(bio_err, "ok\n"); | |
| 474 | |
| 475 } | |
| 476 | |
| 477 if (C) | |
| 478 { | |
| 479 size_t buf_len = 0, tmp_len = 0; | |
| 480 const EC_POINT *point; | |
| 481 int is_prime, len = 0; | |
| 482 const EC_METHOD *meth = EC_GROUP_method_of(group); | |
| 483 | |
| 484 if ((ec_p = BN_new()) == NULL || (ec_a = BN_new()) == NULL || | |
| 485 (ec_b = BN_new()) == NULL || (ec_gen = BN_new()) == NULL || | |
| 486 (ec_order = BN_new()) == NULL || | |
| 487 (ec_cofactor = BN_new()) == NULL ) | |
| 488 { | |
| 489 perror("OPENSSL_malloc"); | |
| 490 goto end; | |
| 491 } | |
| 492 | |
| 493 is_prime = (EC_METHOD_get_field_type(meth) == | |
| 494 NID_X9_62_prime_field); | |
| 495 | |
| 496 if (is_prime) | |
| 497 { | |
| 498 if (!EC_GROUP_get_curve_GFp(group, ec_p, ec_a, | |
| 499 ec_b, NULL)) | |
| 500 goto end; | |
| 501 } | |
| 502 else | |
| 503 { | |
| 504 /* TODO */ | |
| 505 goto end; | |
| 506 } | |
| 507 | |
| 508 if ((point = EC_GROUP_get0_generator(group)) == NULL) | |
| 509 goto end; | |
| 510 if (!EC_POINT_point2bn(group, point, | |
| 511 EC_GROUP_get_point_conversion_form(group), ec_gen, | |
| 512 NULL)) | |
| 513 goto end; | |
| 514 if (!EC_GROUP_get_order(group, ec_order, NULL)) | |
| 515 goto end; | |
| 516 if (!EC_GROUP_get_cofactor(group, ec_cofactor, NULL)) | |
| 517 goto end; | |
| 518 | |
| 519 if (!ec_p || !ec_a || !ec_b || !ec_gen || | |
| 520 !ec_order || !ec_cofactor) | |
| 521 goto end; | |
| 522 | |
| 523 len = BN_num_bits(ec_order); | |
| 524 | |
| 525 if ((tmp_len = (size_t)BN_num_bytes(ec_p)) > buf_len) | |
| 526 buf_len = tmp_len; | |
| 527 if ((tmp_len = (size_t)BN_num_bytes(ec_a)) > buf_len) | |
| 528 buf_len = tmp_len; | |
| 529 if ((tmp_len = (size_t)BN_num_bytes(ec_b)) > buf_len) | |
| 530 buf_len = tmp_len; | |
| 531 if ((tmp_len = (size_t)BN_num_bytes(ec_gen)) > buf_len) | |
| 532 buf_len = tmp_len; | |
| 533 if ((tmp_len = (size_t)BN_num_bytes(ec_order)) > buf_len) | |
| 534 buf_len = tmp_len; | |
| 535 if ((tmp_len = (size_t)BN_num_bytes(ec_cofactor)) > buf_len) | |
| 536 buf_len = tmp_len; | |
| 537 | |
| 538 buffer = (unsigned char *)OPENSSL_malloc(buf_len); | |
| 539 | |
| 540 if (buffer == NULL) | |
| 541 { | |
| 542 perror("OPENSSL_malloc"); | |
| 543 goto end; | |
| 544 } | |
| 545 | |
| 546 ecparam_print_var(out, ec_p, "ec_p", len, buffer); | |
| 547 ecparam_print_var(out, ec_a, "ec_a", len, buffer); | |
| 548 ecparam_print_var(out, ec_b, "ec_b", len, buffer); | |
| 549 ecparam_print_var(out, ec_gen, "ec_gen", len, buffer); | |
| 550 ecparam_print_var(out, ec_order, "ec_order", len, buffer); | |
| 551 ecparam_print_var(out, ec_cofactor, "ec_cofactor", len, | |
| 552 buffer); | |
| 553 | |
| 554 BIO_printf(out, "\n\n"); | |
| 555 | |
| 556 BIO_printf(out, "EC_GROUP *get_ec_group_%d(void)\n\t{\n", len); | |
| 557 BIO_printf(out, "\tint ok=0;\n"); | |
| 558 BIO_printf(out, "\tEC_GROUP *group = NULL;\n"); | |
| 559 BIO_printf(out, "\tEC_POINT *point = NULL;\n"); | |
| 560 BIO_printf(out, "\tBIGNUM *tmp_1 = NULL, *tmp_2 = NULL, " | |
| 561 "*tmp_3 = NULL;\n\n"); | |
| 562 BIO_printf(out, "\tif ((tmp_1 = BN_bin2bn(ec_p_%d, " | |
| 563 "sizeof(ec_p_%d), NULL)) == NULL)\n\t\t" | |
| 564 "goto err;\n", len, len); | |
| 565 BIO_printf(out, "\tif ((tmp_2 = BN_bin2bn(ec_a_%d, " | |
| 566 "sizeof(ec_a_%d), NULL)) == NULL)\n\t\t" | |
| 567 "goto err;\n", len, len); | |
| 568 BIO_printf(out, "\tif ((tmp_3 = BN_bin2bn(ec_b_%d, " | |
| 569 "sizeof(ec_b_%d), NULL)) == NULL)\n\t\t" | |
| 570 "goto err;\n", len, len); | |
| 571 if (is_prime) | |
| 572 { | |
| 573 BIO_printf(out, "\tif ((group = EC_GROUP_new_curve_" | |
| 574 "GFp(tmp_1, tmp_2, tmp_3, NULL)) == NULL)" | |
| 575 "\n\t\tgoto err;\n\n"); | |
| 576 } | |
| 577 else | |
| 578 { | |
| 579 /* TODO */ | |
| 580 goto end; | |
| 581 } | |
| 582 BIO_printf(out, "\t/* build generator */\n"); | |
| 583 BIO_printf(out, "\tif ((tmp_1 = BN_bin2bn(ec_gen_%d, " | |
| 584 "sizeof(ec_gen_%d), tmp_1)) == NULL)" | |
| 585 "\n\t\tgoto err;\n", len, len); | |
| 586 BIO_printf(out, "\tpoint = EC_POINT_bn2point(group, tmp_1, " | |
| 587 "NULL, NULL);\n"); | |
| 588 BIO_printf(out, "\tif (point == NULL)\n\t\tgoto err;\n"); | |
| 589 BIO_printf(out, "\tif ((tmp_2 = BN_bin2bn(ec_order_%d, " | |
| 590 "sizeof(ec_order_%d), tmp_2)) == NULL)" | |
| 591 "\n\t\tgoto err;\n", len, len); | |
| 592 BIO_printf(out, "\tif ((tmp_3 = BN_bin2bn(ec_cofactor_%d, " | |
| 593 "sizeof(ec_cofactor_%d), tmp_3)) == NULL)" | |
| 594 "\n\t\tgoto err;\n", len, len); | |
| 595 BIO_printf(out, "\tif (!EC_GROUP_set_generator(group, point," | |
| 596 " tmp_2, tmp_3))\n\t\tgoto err;\n"); | |
| 597 BIO_printf(out, "\n\tok=1;\n"); | |
| 598 BIO_printf(out, "err:\n"); | |
| 599 BIO_printf(out, "\tif (tmp_1)\n\t\tBN_free(tmp_1);\n"); | |
| 600 BIO_printf(out, "\tif (tmp_2)\n\t\tBN_free(tmp_2);\n"); | |
| 601 BIO_printf(out, "\tif (tmp_3)\n\t\tBN_free(tmp_3);\n"); | |
| 602 BIO_printf(out, "\tif (point)\n\t\tEC_POINT_free(point);\n"); | |
| 603 BIO_printf(out, "\tif (!ok)\n"); | |
| 604 BIO_printf(out, "\t\t{\n"); | |
| 605 BIO_printf(out, "\t\tEC_GROUP_free(group);\n"); | |
| 606 BIO_printf(out, "\t\tgroup = NULL;\n"); | |
| 607 BIO_printf(out, "\t\t}\n"); | |
| 608 BIO_printf(out, "\treturn(group);\n\t}\n"); | |
| 609 } | |
| 610 | |
| 611 if (!noout) | |
| 612 { | |
| 613 if (outformat == FORMAT_ASN1) | |
| 614 i = i2d_ECPKParameters_bio(out, group); | |
| 615 else if (outformat == FORMAT_PEM) | |
| 616 i = PEM_write_bio_ECPKParameters(out, group); | |
| 617 else | |
| 618 { | |
| 619 BIO_printf(bio_err,"bad output format specified for" | |
| 620 " outfile\n"); | |
| 621 goto end; | |
| 622 } | |
| 623 if (!i) | |
| 624 { | |
| 625 BIO_printf(bio_err, "unable to write elliptic " | |
| 626 "curve parameters\n"); | |
| 627 ERR_print_errors(bio_err); | |
| 628 goto end; | |
| 629 } | |
| 630 } | |
| 631 | |
| 632 if (need_rand) | |
| 633 { | |
| 634 app_RAND_load_file(NULL, bio_err, (inrand != NULL)); | |
| 635 if (inrand != NULL) | |
| 636 BIO_printf(bio_err,"%ld semi-random bytes loaded\n", | |
| 637 app_RAND_load_files(inrand)); | |
| 638 } | |
| 639 | |
| 640 if (genkey) | |
| 641 { | |
| 642 EC_KEY *eckey = EC_KEY_new(); | |
| 643 | |
| 644 if (eckey == NULL) | |
| 645 goto end; | |
| 646 | |
| 647 assert(need_rand); | |
| 648 | |
| 649 if (EC_KEY_set_group(eckey, group) == 0) | |
| 650 goto end; | |
| 651 | |
| 652 if (!EC_KEY_generate_key(eckey)) | |
| 653 { | |
| 654 EC_KEY_free(eckey); | |
| 655 goto end; | |
| 656 } | |
| 657 if (outformat == FORMAT_ASN1) | |
| 658 i = i2d_ECPrivateKey_bio(out, eckey); | |
| 659 else if (outformat == FORMAT_PEM) | |
| 660 i = PEM_write_bio_ECPrivateKey(out, eckey, NULL, | |
| 661 NULL, 0, NULL, NULL); | |
| 662 else | |
| 663 { | |
| 664 BIO_printf(bio_err, "bad output format specified " | |
| 665 "for outfile\n"); | |
| 666 EC_KEY_free(eckey); | |
| 667 goto end; | |
| 668 } | |
| 669 EC_KEY_free(eckey); | |
| 670 } | |
| 671 | |
| 672 if (need_rand) | |
| 673 app_RAND_write_file(NULL, bio_err); | |
| 674 | |
| 675 ret=0; | |
| 676 end: | |
| 677 if (ec_p) | |
| 678 BN_free(ec_p); | |
| 679 if (ec_a) | |
| 680 BN_free(ec_a); | |
| 681 if (ec_b) | |
| 682 BN_free(ec_b); | |
| 683 if (ec_gen) | |
| 684 BN_free(ec_gen); | |
| 685 if (ec_order) | |
| 686 BN_free(ec_order); | |
| 687 if (ec_cofactor) | |
| 688 BN_free(ec_cofactor); | |
| 689 if (buffer) | |
| 690 OPENSSL_free(buffer); | |
| 691 if (in != NULL) | |
| 692 BIO_free(in); | |
| 693 if (out != NULL) | |
| 694 BIO_free_all(out); | |
| 695 if (group != NULL) | |
| 696 EC_GROUP_free(group); | |
| 697 apps_shutdown(); | |
| 698 OPENSSL_EXIT(ret); | |
| 699 } | |
| 700 | |
| 701 static int ecparam_print_var(BIO *out, BIGNUM *in, const char *var, | |
| 702 int len, unsigned char *buffer) | |
| 703 { | |
| 704 BIO_printf(out, "static unsigned char %s_%d[] = {", var, len); | |
| 705 if (BN_is_zero(in)) | |
| 706 BIO_printf(out, "\n\t0x00"); | |
| 707 else | |
| 708 { | |
| 709 int i, l; | |
| 710 | |
| 711 l = BN_bn2bin(in, buffer); | |
| 712 for (i=0; i<l-1; i++) | |
| 713 { | |
| 714 if ((i%12) == 0) | |
| 715 BIO_printf(out, "\n\t"); | |
| 716 BIO_printf(out, "0x%02X,", buffer[i]); | |
| 717 } | |
| 718 if ((i%12) == 0) | |
| 719 BIO_printf(out, "\n\t"); | |
| 720 BIO_printf(out, "0x%02X", buffer[i]); | |
| 721 } | |
| 722 BIO_printf(out, "\n\t};\n\n"); | |
| 723 return 1; | |
| 724 } | |
| 725 #else /* !OPENSSL_NO_EC */ | |
| 726 | |
| 727 # if PEDANTIC | |
| 728 static void *dummy=&dummy; | |
| 729 # endif | |
| 730 | |
| 731 #endif | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master