1 /* $OpenBSD: ecparam.c,v 1.20 2021/04/21 00:31:59 tb 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 int EC_GROUP_get_curve_GF2m(const EC_GROUP *, BIGNUM *, BIGNUM *, BIGNUM *, 91 BN_CTX *); 92 int EC_GROUP_get_curve_GFp(const EC_GROUP *, BIGNUM *, BIGNUM *, BIGNUM *, 93 BN_CTX *); 94 95 static int ecparam_print_var(BIO *, BIGNUM *, const char *, int, 96 unsigned char *); 97 98 static struct { 99 int C; 100 int asn1_flag; 101 int check; 102 char *curve_name; 103 point_conversion_form_t form; 104 int genkey; 105 char *infile; 106 int informat; 107 int list_curves; 108 int new_asn1_flag; 109 int new_form; 110 int no_seed; 111 int noout; 112 char *outfile; 113 int outformat; 114 int text; 115 } ecparam_config; 116 117 static int 118 ecparam_opt_form(char *arg) 119 { 120 if (strcmp(arg, "compressed") == 0) 121 ecparam_config.form = POINT_CONVERSION_COMPRESSED; 122 else if (strcmp(arg, "uncompressed") == 0) 123 ecparam_config.form = POINT_CONVERSION_UNCOMPRESSED; 124 else if (strcmp(arg, "hybrid") == 0) 125 ecparam_config.form = POINT_CONVERSION_HYBRID; 126 else 127 return (1); 128 129 ecparam_config.new_form = 1; 130 return (0); 131 } 132 133 static int 134 ecparam_opt_enctype(char *arg) 135 { 136 if (strcmp(arg, "explicit") == 0) 137 ecparam_config.asn1_flag = 0; 138 else if (strcmp(arg, "named_curve") == 0) 139 ecparam_config.asn1_flag = OPENSSL_EC_NAMED_CURVE; 140 else 141 return (1); 142 143 ecparam_config.new_asn1_flag = 1; 144 return (0); 145 } 146 147 static const struct option ecparam_options[] = { 148 { 149 .name = "C", 150 .desc = "Convert the EC parameters into C code", 151 .type = OPTION_FLAG, 152 .opt.flag = &ecparam_config.C, 153 }, 154 { 155 .name = "check", 156 .desc = "Validate the elliptic curve parameters", 157 .type = OPTION_FLAG, 158 .opt.flag = &ecparam_config.check, 159 }, 160 { 161 .name = "conv_form", 162 .argname = "form", 163 .desc = "Specify point conversion form:\n" 164 " compressed, uncompressed (default), hybrid", 165 .type = OPTION_ARG_FUNC, 166 .opt.argfunc = ecparam_opt_form, 167 }, 168 { 169 .name = "genkey", 170 .desc = "Generate an EC private key using the specified " 171 "parameters", 172 .type = OPTION_FLAG, 173 .opt.flag = &ecparam_config.genkey, 174 }, 175 { 176 .name = "in", 177 .argname = "file", 178 .desc = "Input file to read parameters from (default stdin)", 179 .type = OPTION_ARG, 180 .opt.arg = &ecparam_config.infile, 181 }, 182 { 183 .name = "inform", 184 .argname = "format", 185 .desc = "Input format (DER or PEM)", 186 .type = OPTION_ARG_FORMAT, 187 .opt.value = &ecparam_config.informat, 188 }, 189 { 190 .name = "list_curves", 191 .desc = "Print list of all currently implemented EC " 192 "parameter names", 193 .type = OPTION_FLAG, 194 .opt.flag = &ecparam_config.list_curves, 195 }, 196 { 197 .name = "name", 198 .argname = "curve", 199 .desc = "Use the EC parameters with the specified name", 200 .type = OPTION_ARG, 201 .opt.arg = &ecparam_config.curve_name, 202 }, 203 { 204 .name = "no_seed", 205 .desc = "Do not output seed with explicit parameter encoding", 206 .type = OPTION_FLAG, 207 .opt.flag = &ecparam_config.no_seed, 208 }, 209 { 210 .name = "noout", 211 .desc = "Do not output encoded version of EC parameters", 212 .type = OPTION_FLAG, 213 .opt.flag = &ecparam_config.noout, 214 }, 215 { 216 .name = "out", 217 .argname = "file", 218 .desc = "Output file to write parameters to (default stdout)", 219 .type = OPTION_ARG, 220 .opt.arg = &ecparam_config.outfile, 221 }, 222 { 223 .name = "outform", 224 .argname = "format", 225 .desc = "Output format (DER or PEM)", 226 .type = OPTION_ARG_FORMAT, 227 .opt.value = &ecparam_config.outformat, 228 }, 229 { 230 .name = "param_enc", 231 .argname = "type", 232 .desc = "Specify EC parameter ASN.1 encoding type:\n" 233 " explicit, named_curve (default)", 234 .type = OPTION_ARG_FUNC, 235 .opt.argfunc = ecparam_opt_enctype, 236 }, 237 { 238 .name = "text", 239 .desc = "Print out the EC parameters in human readable form", 240 .type = OPTION_FLAG, 241 .opt.flag = &ecparam_config.text, 242 }, 243 {NULL}, 244 }; 245 246 static void 247 ecparam_usage(void) 248 { 249 fprintf(stderr, "usage: ecparam [-C] [-check] [-conv_form arg] " 250 " [-genkey]\n" 251 " [-in file] [-inform DER | PEM] [-list_curves] [-name arg]\n" 252 " [-no_seed] [-noout] [-out file] [-outform DER | PEM]\n" 253 " [-param_enc arg] [-text]\n\n"); 254 options_usage(ecparam_options); 255 } 256 257 int 258 ecparam_main(int argc, char **argv) 259 { 260 BIGNUM *ec_p = NULL, *ec_a = NULL, *ec_b = NULL, *ec_gen = NULL; 261 BIGNUM *ec_order = NULL, *ec_cofactor = NULL; 262 EC_GROUP *group = NULL; 263 unsigned char *buffer = NULL; 264 BIO *in = NULL, *out = NULL; 265 int i, ret = 1; 266 267 if (single_execution) { 268 if (pledge("stdio cpath wpath rpath", NULL) == -1) { 269 perror("pledge"); 270 exit(1); 271 } 272 } 273 274 memset(&ecparam_config, 0, sizeof(ecparam_config)); 275 ecparam_config.asn1_flag = OPENSSL_EC_NAMED_CURVE; 276 ecparam_config.form = POINT_CONVERSION_UNCOMPRESSED; 277 ecparam_config.informat = FORMAT_PEM; 278 ecparam_config.outformat = FORMAT_PEM; 279 280 if (options_parse(argc, argv, ecparam_options, NULL, NULL) != 0) { 281 ecparam_usage(); 282 goto end; 283 } 284 285 in = BIO_new(BIO_s_file()); 286 out = BIO_new(BIO_s_file()); 287 if ((in == NULL) || (out == NULL)) { 288 ERR_print_errors(bio_err); 289 goto end; 290 } 291 if (ecparam_config.infile == NULL) 292 BIO_set_fp(in, stdin, BIO_NOCLOSE); 293 else { 294 if (BIO_read_filename(in, ecparam_config.infile) <= 0) { 295 perror(ecparam_config.infile); 296 goto end; 297 } 298 } 299 if (ecparam_config.outfile == NULL) { 300 BIO_set_fp(out, stdout, BIO_NOCLOSE); 301 } else { 302 if (BIO_write_filename(out, ecparam_config.outfile) <= 0) { 303 perror(ecparam_config.outfile); 304 goto end; 305 } 306 } 307 308 if (ecparam_config.list_curves) { 309 EC_builtin_curve *curves = NULL; 310 size_t crv_len = 0; 311 size_t n = 0; 312 313 crv_len = EC_get_builtin_curves(NULL, 0); 314 315 curves = reallocarray(NULL, crv_len, sizeof(EC_builtin_curve)); 316 if (curves == NULL) 317 goto end; 318 319 if (!EC_get_builtin_curves(curves, crv_len)) { 320 free(curves); 321 goto end; 322 } 323 for (n = 0; n < crv_len; n++) { 324 const char *comment; 325 const char *sname; 326 comment = curves[n].comment; 327 sname = OBJ_nid2sn(curves[n].nid); 328 if (comment == NULL) 329 comment = "CURVE DESCRIPTION NOT AVAILABLE"; 330 if (sname == NULL) 331 sname = ""; 332 333 BIO_printf(out, " %-10s: ", sname); 334 BIO_printf(out, "%s\n", comment); 335 } 336 337 free(curves); 338 ret = 0; 339 goto end; 340 } 341 if (ecparam_config.curve_name != NULL) { 342 int nid; 343 344 /* 345 * workaround for the SECG curve names secp192r1 and 346 * secp256r1 (which are the same as the curves prime192v1 and 347 * prime256v1 defined in X9.62) 348 */ 349 if (!strcmp(ecparam_config.curve_name, "secp192r1")) { 350 BIO_printf(bio_err, "using curve name prime192v1 " 351 "instead of secp192r1\n"); 352 nid = NID_X9_62_prime192v1; 353 } else if (!strcmp(ecparam_config.curve_name, "secp256r1")) { 354 BIO_printf(bio_err, "using curve name prime256v1 " 355 "instead of secp256r1\n"); 356 nid = NID_X9_62_prime256v1; 357 } else 358 nid = OBJ_sn2nid(ecparam_config.curve_name); 359 360 if (nid == 0) 361 nid = EC_curve_nist2nid(ecparam_config.curve_name); 362 363 if (nid == 0) { 364 BIO_printf(bio_err, "unknown curve name (%s)\n", 365 ecparam_config.curve_name); 366 goto end; 367 } 368 group = EC_GROUP_new_by_curve_name(nid); 369 if (group == NULL) { 370 BIO_printf(bio_err, "unable to create curve (%s)\n", 371 ecparam_config.curve_name); 372 goto end; 373 } 374 EC_GROUP_set_asn1_flag(group, ecparam_config.asn1_flag); 375 EC_GROUP_set_point_conversion_form(group, ecparam_config.form); 376 } else if (ecparam_config.informat == FORMAT_ASN1) { 377 group = d2i_ECPKParameters_bio(in, NULL); 378 } else if (ecparam_config.informat == FORMAT_PEM) { 379 group = PEM_read_bio_ECPKParameters(in, NULL, NULL, NULL); 380 } else { 381 BIO_printf(bio_err, "bad input format specified\n"); 382 goto end; 383 } 384 385 if (group == NULL) { 386 BIO_printf(bio_err, 387 "unable to load elliptic curve parameters\n"); 388 ERR_print_errors(bio_err); 389 goto end; 390 } 391 if (ecparam_config.new_form) 392 EC_GROUP_set_point_conversion_form(group, ecparam_config.form); 393 394 if (ecparam_config.new_asn1_flag) 395 EC_GROUP_set_asn1_flag(group, ecparam_config.asn1_flag); 396 397 if (ecparam_config.no_seed) 398 EC_GROUP_set_seed(group, NULL, 0); 399 400 if (ecparam_config.text) { 401 if (!ECPKParameters_print(out, group, 0)) 402 goto end; 403 } 404 if (ecparam_config.check) { 405 BIO_printf(bio_err, "checking elliptic curve parameters: "); 406 if (!EC_GROUP_check(group, NULL)) { 407 BIO_printf(bio_err, "failed\n"); 408 ERR_print_errors(bio_err); 409 } else 410 BIO_printf(bio_err, "ok\n"); 411 412 } 413 if (ecparam_config.C) { 414 size_t buf_len = 0, tmp_len = 0; 415 const EC_POINT *point; 416 int is_prime, len = 0; 417 const EC_METHOD *meth = EC_GROUP_method_of(group); 418 419 if ((ec_p = BN_new()) == NULL || (ec_a = BN_new()) == NULL || 420 (ec_b = BN_new()) == NULL || (ec_gen = BN_new()) == NULL || 421 (ec_order = BN_new()) == NULL || 422 (ec_cofactor = BN_new()) == NULL) { 423 perror("malloc"); 424 goto end; 425 } 426 is_prime = (EC_METHOD_get_field_type(meth) == 427 NID_X9_62_prime_field); 428 429 if (is_prime) { 430 if (!EC_GROUP_get_curve_GFp(group, ec_p, ec_a, 431 ec_b, NULL)) 432 goto end; 433 } else { 434 if (!EC_GROUP_get_curve_GF2m(group, ec_p, ec_a, 435 ec_b, NULL)) 436 goto end; 437 } 438 439 if ((point = EC_GROUP_get0_generator(group)) == NULL) 440 goto end; 441 if (!EC_POINT_point2bn(group, point, 442 EC_GROUP_get_point_conversion_form(group), ec_gen, 443 NULL)) 444 goto end; 445 if (!EC_GROUP_get_order(group, ec_order, NULL)) 446 goto end; 447 if (!EC_GROUP_get_cofactor(group, ec_cofactor, NULL)) 448 goto end; 449 450 len = BN_num_bits(ec_order); 451 452 if ((tmp_len = (size_t) BN_num_bytes(ec_p)) > buf_len) 453 buf_len = tmp_len; 454 if ((tmp_len = (size_t) BN_num_bytes(ec_a)) > buf_len) 455 buf_len = tmp_len; 456 if ((tmp_len = (size_t) BN_num_bytes(ec_b)) > buf_len) 457 buf_len = tmp_len; 458 if ((tmp_len = (size_t) BN_num_bytes(ec_gen)) > buf_len) 459 buf_len = tmp_len; 460 if ((tmp_len = (size_t) BN_num_bytes(ec_order)) > buf_len) 461 buf_len = tmp_len; 462 if ((tmp_len = (size_t) BN_num_bytes(ec_cofactor)) > buf_len) 463 buf_len = tmp_len; 464 465 buffer = malloc(buf_len); 466 467 if (buffer == NULL) { 468 perror("malloc"); 469 goto end; 470 } 471 ecparam_print_var(out, ec_p, "ec_p", len, buffer); 472 ecparam_print_var(out, ec_a, "ec_a", len, buffer); 473 ecparam_print_var(out, ec_b, "ec_b", len, buffer); 474 ecparam_print_var(out, ec_gen, "ec_gen", len, buffer); 475 ecparam_print_var(out, ec_order, "ec_order", len, buffer); 476 ecparam_print_var(out, ec_cofactor, "ec_cofactor", len, 477 buffer); 478 479 BIO_printf(out, "\n\n"); 480 481 BIO_printf(out, "EC_GROUP *get_ec_group_%d(void)\n\t{\n", len); 482 BIO_printf(out, "\tint ok=0;\n"); 483 BIO_printf(out, "\tEC_GROUP *group = NULL;\n"); 484 BIO_printf(out, "\tEC_POINT *point = NULL;\n"); 485 BIO_printf(out, "\tBIGNUM *tmp_1 = NULL, *tmp_2 = NULL, " 486 "*tmp_3 = NULL;\n\n"); 487 BIO_printf(out, "\tif ((tmp_1 = BN_bin2bn(ec_p_%d, " 488 "sizeof(ec_p_%d), NULL)) == NULL)\n\t\t" 489 "goto err;\n", len, len); 490 BIO_printf(out, "\tif ((tmp_2 = BN_bin2bn(ec_a_%d, " 491 "sizeof(ec_a_%d), NULL)) == NULL)\n\t\t" 492 "goto err;\n", len, len); 493 BIO_printf(out, "\tif ((tmp_3 = BN_bin2bn(ec_b_%d, " 494 "sizeof(ec_b_%d), NULL)) == NULL)\n\t\t" 495 "goto err;\n", len, len); 496 if (is_prime) { 497 BIO_printf(out, "\tif ((group = EC_GROUP_new_curve_" 498 "GFp(tmp_1, tmp_2, tmp_3, NULL)) == NULL)" 499 "\n\t\tgoto err;\n\n"); 500 } else { 501 BIO_printf(out, "\tif ((group = EC_GROUP_new_curve_" 502 "GF2m(tmp_1, tmp_2, tmp_3, NULL)) == NULL)" 503 "\n\t\tgoto err;\n\n"); 504 } 505 BIO_printf(out, "\t/* build generator */\n"); 506 BIO_printf(out, "\tif ((tmp_1 = BN_bin2bn(ec_gen_%d, " 507 "sizeof(ec_gen_%d), tmp_1)) == NULL)" 508 "\n\t\tgoto err;\n", len, len); 509 BIO_printf(out, "\tpoint = EC_POINT_bn2point(group, tmp_1, " 510 "NULL, NULL);\n"); 511 BIO_printf(out, "\tif (point == NULL)\n\t\tgoto err;\n"); 512 BIO_printf(out, "\tif ((tmp_2 = BN_bin2bn(ec_order_%d, " 513 "sizeof(ec_order_%d), tmp_2)) == NULL)" 514 "\n\t\tgoto err;\n", len, len); 515 BIO_printf(out, "\tif ((tmp_3 = BN_bin2bn(ec_cofactor_%d, " 516 "sizeof(ec_cofactor_%d), tmp_3)) == NULL)" 517 "\n\t\tgoto err;\n", len, len); 518 BIO_printf(out, "\tif (!EC_GROUP_set_generator(group, point," 519 " tmp_2, tmp_3))\n\t\tgoto err;\n"); 520 BIO_printf(out, "\n\tok=1;\n"); 521 BIO_printf(out, "err:\n"); 522 BIO_printf(out, "\tif (tmp_1)\n\t\tBN_free(tmp_1);\n"); 523 BIO_printf(out, "\tif (tmp_2)\n\t\tBN_free(tmp_2);\n"); 524 BIO_printf(out, "\tif (tmp_3)\n\t\tBN_free(tmp_3);\n"); 525 BIO_printf(out, "\tif (point)\n\t\tEC_POINT_free(point);\n"); 526 BIO_printf(out, "\tif (!ok)\n"); 527 BIO_printf(out, "\t\t{\n"); 528 BIO_printf(out, "\t\tEC_GROUP_free(group);\n"); 529 BIO_printf(out, "\t\tgroup = NULL;\n"); 530 BIO_printf(out, "\t\t}\n"); 531 BIO_printf(out, "\treturn(group);\n\t}\n"); 532 } 533 if (!ecparam_config.noout) { 534 if (ecparam_config.outformat == FORMAT_ASN1) 535 i = i2d_ECPKParameters_bio(out, group); 536 else if (ecparam_config.outformat == FORMAT_PEM) 537 i = PEM_write_bio_ECPKParameters(out, group); 538 else { 539 BIO_printf(bio_err, "bad output format specified for" 540 " outfile\n"); 541 goto end; 542 } 543 if (!i) { 544 BIO_printf(bio_err, "unable to write elliptic " 545 "curve parameters\n"); 546 ERR_print_errors(bio_err); 547 goto end; 548 } 549 } 550 if (ecparam_config.genkey) { 551 EC_KEY *eckey = EC_KEY_new(); 552 553 if (eckey == NULL) 554 goto end; 555 556 if (EC_KEY_set_group(eckey, group) == 0) { 557 EC_KEY_free(eckey); 558 goto end; 559 } 560 561 if (!EC_KEY_generate_key(eckey)) { 562 EC_KEY_free(eckey); 563 goto end; 564 } 565 if (ecparam_config.outformat == FORMAT_ASN1) 566 i = i2d_ECPrivateKey_bio(out, eckey); 567 else if (ecparam_config.outformat == FORMAT_PEM) 568 i = PEM_write_bio_ECPrivateKey(out, eckey, NULL, 569 NULL, 0, NULL, NULL); 570 else { 571 BIO_printf(bio_err, "bad output format specified " 572 "for outfile\n"); 573 EC_KEY_free(eckey); 574 goto end; 575 } 576 EC_KEY_free(eckey); 577 } 578 ret = 0; 579 580 end: 581 BN_free(ec_p); 582 BN_free(ec_a); 583 BN_free(ec_b); 584 BN_free(ec_gen); 585 BN_free(ec_order); 586 BN_free(ec_cofactor); 587 588 free(buffer); 589 590 BIO_free(in); 591 BIO_free_all(out); 592 EC_GROUP_free(group); 593 594 return (ret); 595 } 596 597 static int 598 ecparam_print_var(BIO * out, BIGNUM * in, const char *var, 599 int len, unsigned char *buffer) 600 { 601 BIO_printf(out, "static unsigned char %s_%d[] = {", var, len); 602 if (BN_is_zero(in)) 603 BIO_printf(out, "\n\t0x00"); 604 else { 605 int i, l; 606 607 l = BN_bn2bin(in, buffer); 608 for (i = 0; i < l - 1; i++) { 609 if ((i % 12) == 0) 610 BIO_printf(out, "\n\t"); 611 BIO_printf(out, "0x%02X,", buffer[i]); 612 } 613 if ((i % 12) == 0) 614 BIO_printf(out, "\n\t"); 615 BIO_printf(out, "0x%02X", buffer[i]); 616 } 617 BIO_printf(out, "\n\t};\n\n"); 618 return 1; 619 } 620 #endif 621