| /* apps/ecparam.c */ |
| /* |
| * Written by Nils Larsch for the OpenSSL project. |
| */ |
| /* ==================================================================== |
| * Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. All advertising materials mentioning features or use of this |
| * software must display the following acknowledgment: |
| * "This product includes software developed by the OpenSSL Project |
| * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" |
| * |
| * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
| * endorse or promote products derived from this software without |
| * prior written permission. For written permission, please contact |
| * openssl-core@openssl.org. |
| * |
| * 5. Products derived from this software may not be called "OpenSSL" |
| * nor may "OpenSSL" appear in their names without prior written |
| * permission of the OpenSSL Project. |
| * |
| * 6. Redistributions of any form whatsoever must retain the following |
| * acknowledgment: |
| * "This product includes software developed by the OpenSSL Project |
| * for use in the OpenSSL Toolkit (http://www.openssl.org/)" |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
| * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| * OF THE POSSIBILITY OF SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This product includes cryptographic software written by Eric Young |
| * (eay@cryptsoft.com). This product includes software written by Tim |
| * Hudson (tjh@cryptsoft.com). |
| * |
| */ |
| /* ==================================================================== |
| * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. |
| * |
| * Portions of the attached software ("Contribution") are developed by |
| * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project. |
| * |
| * The Contribution is licensed pursuant to the OpenSSL open source |
| * license provided above. |
| * |
| * The elliptic curve binary polynomial software is originally written by |
| * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories. |
| * |
| */ |
| |
| #include <openssl/opensslconf.h> |
| #ifndef OPENSSL_NO_EC |
| # include <assert.h> |
| # include <stdio.h> |
| # include <stdlib.h> |
| # include <time.h> |
| # include <string.h> |
| # include "apps.h" |
| # include <openssl/bio.h> |
| # include <openssl/err.h> |
| # include <openssl/bn.h> |
| # include <openssl/ec.h> |
| # include <openssl/x509.h> |
| # include <openssl/pem.h> |
| |
| # undef PROG |
| # define PROG ecparam_main |
| |
| /*- |
| * -inform arg - input format - default PEM (DER or PEM) |
| * -outform arg - output format - default PEM |
| * -in arg - input file - default stdin |
| * -out arg - output file - default stdout |
| * -noout - do not print the ec parameter |
| * -text - print the ec parameters in text form |
| * -check - validate the ec parameters |
| * -C - print a 'C' function creating the parameters |
| * -name arg - use the ec parameters with 'short name' name |
| * -list_curves - prints a list of all currently available curve 'short names' |
| * -conv_form arg - specifies the point conversion form |
| * - possible values: compressed |
| * uncompressed (default) |
| * hybrid |
| * -param_enc arg - specifies the way the ec parameters are encoded |
| * in the asn1 der encoding |
| * possible values: named_curve (default) |
| * explicit |
| * -no_seed - if 'explicit' parameters are chosen do not use the seed |
| * -genkey - generate ec key |
| * -rand file - files to use for random number input |
| * -engine e - use engine e, possibly a hardware device |
| */ |
| |
| static int ecparam_print_var(BIO *, BIGNUM *, const char *, int, |
| unsigned char *); |
| |
| int MAIN(int, char **); |
| |
| int MAIN(int argc, char **argv) |
| { |
| EC_GROUP *group = NULL; |
| point_conversion_form_t form = POINT_CONVERSION_UNCOMPRESSED; |
| int new_form = 0; |
| int asn1_flag = OPENSSL_EC_NAMED_CURVE; |
| int new_asn1_flag = 0; |
| char *curve_name = NULL, *inrand = NULL; |
| int list_curves = 0, no_seed = 0, check = 0, |
| badops = 0, text = 0, i, need_rand = 0, genkey = 0; |
| char *infile = NULL, *outfile = NULL, *prog; |
| BIO *in = NULL, *out = NULL; |
| int informat, outformat, noout = 0, C = 0, ret = 1; |
| char *engine = NULL; |
| |
| BIGNUM *ec_p = NULL, *ec_a = NULL, *ec_b = NULL, |
| *ec_gen = NULL, *ec_order = NULL, *ec_cofactor = NULL; |
| unsigned char *buffer = NULL; |
| |
| apps_startup(); |
| |
| if (bio_err == NULL) |
| if ((bio_err = BIO_new(BIO_s_file())) != NULL) |
| BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT); |
| |
| if (!load_config(bio_err, NULL)) |
| goto end; |
| |
| informat = FORMAT_PEM; |
| outformat = FORMAT_PEM; |
| |
| prog = argv[0]; |
| argc--; |
| argv++; |
| while (argc >= 1) { |
| if (strcmp(*argv, "-inform") == 0) { |
| if (--argc < 1) |
| goto bad; |
| informat = str2fmt(*(++argv)); |
| } else if (strcmp(*argv, "-outform") == 0) { |
| if (--argc < 1) |
| goto bad; |
| outformat = str2fmt(*(++argv)); |
| } else if (strcmp(*argv, "-in") == 0) { |
| if (--argc < 1) |
| goto bad; |
| infile = *(++argv); |
| } else if (strcmp(*argv, "-out") == 0) { |
| if (--argc < 1) |
| goto bad; |
| outfile = *(++argv); |
| } else if (strcmp(*argv, "-text") == 0) |
| text = 1; |
| else if (strcmp(*argv, "-C") == 0) |
| C = 1; |
| else if (strcmp(*argv, "-check") == 0) |
| check = 1; |
| else if (strcmp(*argv, "-name") == 0) { |
| if (--argc < 1) |
| goto bad; |
| curve_name = *(++argv); |
| } else if (strcmp(*argv, "-list_curves") == 0) |
| list_curves = 1; |
| else if (strcmp(*argv, "-conv_form") == 0) { |
| if (--argc < 1) |
| goto bad; |
| ++argv; |
| new_form = 1; |
| if (strcmp(*argv, "compressed") == 0) |
| form = POINT_CONVERSION_COMPRESSED; |
| else if (strcmp(*argv, "uncompressed") == 0) |
| form = POINT_CONVERSION_UNCOMPRESSED; |
| else if (strcmp(*argv, "hybrid") == 0) |
| form = POINT_CONVERSION_HYBRID; |
| else |
| goto bad; |
| } else if (strcmp(*argv, "-param_enc") == 0) { |
| if (--argc < 1) |
| goto bad; |
| ++argv; |
| new_asn1_flag = 1; |
| if (strcmp(*argv, "named_curve") == 0) |
| asn1_flag = OPENSSL_EC_NAMED_CURVE; |
| else if (strcmp(*argv, "explicit") == 0) |
| asn1_flag = 0; |
| else |
| goto bad; |
| } else if (strcmp(*argv, "-no_seed") == 0) |
| no_seed = 1; |
| else if (strcmp(*argv, "-noout") == 0) |
| noout = 1; |
| else if (strcmp(*argv, "-genkey") == 0) { |
| genkey = 1; |
| need_rand = 1; |
| } else if (strcmp(*argv, "-rand") == 0) { |
| if (--argc < 1) |
| goto bad; |
| inrand = *(++argv); |
| need_rand = 1; |
| } else if (strcmp(*argv, "-engine") == 0) { |
| if (--argc < 1) |
| goto bad; |
| engine = *(++argv); |
| } else { |
| BIO_printf(bio_err, "unknown option %s\n", *argv); |
| badops = 1; |
| break; |
| } |
| argc--; |
| argv++; |
| } |
| |
| if (badops) { |
| bad: |
| BIO_printf(bio_err, "%s [options] <infile >outfile\n", prog); |
| BIO_printf(bio_err, "where options are\n"); |
| BIO_printf(bio_err, " -inform arg input format - " |
| "default PEM (DER or PEM)\n"); |
| BIO_printf(bio_err, " -outform arg output format - " |
| "default PEM\n"); |
| BIO_printf(bio_err, " -in arg input file - " |
| "default stdin\n"); |
| BIO_printf(bio_err, " -out arg output file - " |
| "default stdout\n"); |
| BIO_printf(bio_err, " -noout do not print the " |
| "ec parameter\n"); |
| BIO_printf(bio_err, " -text print the ec " |
| "parameters in text form\n"); |
| BIO_printf(bio_err, " -check validate the ec " |
| "parameters\n"); |
| BIO_printf(bio_err, " -C print a 'C' " |
| "function creating the parameters\n"); |
| BIO_printf(bio_err, " -name arg use the " |
| "ec parameters with 'short name' name\n"); |
| BIO_printf(bio_err, " -list_curves prints a list of " |
| "all currently available curve 'short names'\n"); |
| BIO_printf(bio_err, " -conv_form arg specifies the " |
| "point conversion form \n"); |
| BIO_printf(bio_err, " possible values:" |
| " compressed\n"); |
| BIO_printf(bio_err, " " |
| " uncompressed (default)\n"); |
| BIO_printf(bio_err, " " |
| " hybrid\n"); |
| BIO_printf(bio_err, " -param_enc arg specifies the way" |
| " the ec parameters are encoded\n"); |
| BIO_printf(bio_err, " in the asn1 der " |
| "encoding\n"); |
| BIO_printf(bio_err, " possible values:" |
| " named_curve (default)\n"); |
| BIO_printf(bio_err, " " |
| " explicit\n"); |
| BIO_printf(bio_err, " -no_seed if 'explicit'" |
| " parameters are chosen do not" " use the seed\n"); |
| BIO_printf(bio_err, " -genkey generate ec" " key\n"); |
| BIO_printf(bio_err, " -rand file files to use for" |
| " random number input\n"); |
| BIO_printf(bio_err, " -engine e use engine e, " |
| "possibly a hardware device\n"); |
| goto end; |
| } |
| |
| ERR_load_crypto_strings(); |
| |
| in = BIO_new(BIO_s_file()); |
| out = BIO_new(BIO_s_file()); |
| if ((in == NULL) || (out == NULL)) { |
| ERR_print_errors(bio_err); |
| goto end; |
| } |
| |
| if (infile == NULL) |
| BIO_set_fp(in, stdin, BIO_NOCLOSE); |
| else { |
| if (BIO_read_filename(in, infile) <= 0) { |
| perror(infile); |
| goto end; |
| } |
| } |
| if (outfile == NULL) { |
| BIO_set_fp(out, stdout, BIO_NOCLOSE); |
| # ifdef OPENSSL_SYS_VMS |
| { |
| BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
| out = BIO_push(tmpbio, out); |
| } |
| # endif |
| } else { |
| if (BIO_write_filename(out, outfile) <= 0) { |
| perror(outfile); |
| goto end; |
| } |
| } |
| |
| # ifndef OPENSSL_NO_ENGINE |
| setup_engine(bio_err, engine, 0); |
| # endif |
| |
| if (list_curves) { |
| EC_builtin_curve *curves = NULL; |
| size_t crv_len = 0; |
| size_t n = 0; |
| |
| crv_len = EC_get_builtin_curves(NULL, 0); |
| |
| curves = OPENSSL_malloc((int)(sizeof(EC_builtin_curve) * crv_len)); |
| |
| if (curves == NULL) |
| goto end; |
| |
| if (!EC_get_builtin_curves(curves, crv_len)) { |
| OPENSSL_free(curves); |
| goto end; |
| } |
| |
| for (n = 0; n < crv_len; n++) { |
| const char *comment; |
| const char *sname; |
| comment = curves[n].comment; |
| sname = OBJ_nid2sn(curves[n].nid); |
| if (comment == NULL) |
| comment = "CURVE DESCRIPTION NOT AVAILABLE"; |
| if (sname == NULL) |
| sname = ""; |
| |
| BIO_printf(out, " %-10s: ", sname); |
| BIO_printf(out, "%s\n", comment); |
| } |
| |
| OPENSSL_free(curves); |
| ret = 0; |
| goto end; |
| } |
| |
| if (curve_name != NULL) { |
| int nid; |
| |
| /* |
| * workaround for the SECG curve names secp192r1 and secp256r1 (which |
| * are the same as the curves prime192v1 and prime256v1 defined in |
| * X9.62) |
| */ |
| if (!strcmp(curve_name, "secp192r1")) { |
| BIO_printf(bio_err, "using curve name prime192v1 " |
| "instead of secp192r1\n"); |
| nid = NID_X9_62_prime192v1; |
| } else if (!strcmp(curve_name, "secp256r1")) { |
| BIO_printf(bio_err, "using curve name prime256v1 " |
| "instead of secp256r1\n"); |
| nid = NID_X9_62_prime256v1; |
| } else |
| nid = OBJ_sn2nid(curve_name); |
| |
| if (nid == 0) { |
| BIO_printf(bio_err, "unknown curve name (%s)\n", curve_name); |
| goto end; |
| } |
| |
| group = EC_GROUP_new_by_curve_name(nid); |
| if (group == NULL) { |
| BIO_printf(bio_err, "unable to create curve (%s)\n", curve_name); |
| goto end; |
| } |
| EC_GROUP_set_asn1_flag(group, asn1_flag); |
| EC_GROUP_set_point_conversion_form(group, form); |
| } else if (informat == FORMAT_ASN1) { |
| group = d2i_ECPKParameters_bio(in, NULL); |
| } else if (informat == FORMAT_PEM) { |
| group = PEM_read_bio_ECPKParameters(in, NULL, NULL, NULL); |
| } else { |
| BIO_printf(bio_err, "bad input format specified\n"); |
| goto end; |
| } |
| |
| if (group == NULL) { |
| BIO_printf(bio_err, "unable to load elliptic curve parameters\n"); |
| ERR_print_errors(bio_err); |
| goto end; |
| } |
| |
| if (new_form) |
| EC_GROUP_set_point_conversion_form(group, form); |
| |
| if (new_asn1_flag) |
| EC_GROUP_set_asn1_flag(group, asn1_flag); |
| |
| if (no_seed) { |
| EC_GROUP_set_seed(group, NULL, 0); |
| } |
| |
| if (text) { |
| if (!ECPKParameters_print(out, group, 0)) |
| goto end; |
| } |
| |
| if (check) { |
| BIO_printf(bio_err, "checking elliptic curve parameters: "); |
| if (!EC_GROUP_check(group, NULL)) { |
| BIO_printf(bio_err, "failed\n"); |
| ERR_print_errors(bio_err); |
| goto end; |
| } |
| BIO_printf(bio_err, "ok\n"); |
| |
| } |
| |
| if (C) { |
| size_t buf_len = 0, tmp_len = 0; |
| const EC_POINT *point; |
| int is_prime, len = 0; |
| const EC_METHOD *meth = EC_GROUP_method_of(group); |
| |
| if ((ec_p = BN_new()) == NULL || (ec_a = BN_new()) == NULL || |
| (ec_b = BN_new()) == NULL || (ec_gen = BN_new()) == NULL || |
| (ec_order = BN_new()) == NULL || |
| (ec_cofactor = BN_new()) == NULL) { |
| perror("OPENSSL_malloc"); |
| goto end; |
| } |
| |
| is_prime = (EC_METHOD_get_field_type(meth) == NID_X9_62_prime_field); |
| |
| if (is_prime) { |
| if (!EC_GROUP_get_curve_GFp(group, ec_p, ec_a, ec_b, NULL)) |
| goto end; |
| } else { |
| /* TODO */ |
| goto end; |
| } |
| |
| if ((point = EC_GROUP_get0_generator(group)) == NULL) |
| goto end; |
| if (!EC_POINT_point2bn(group, point, |
| EC_GROUP_get_point_conversion_form(group), |
| ec_gen, NULL)) |
| goto end; |
| if (!EC_GROUP_get_order(group, ec_order, NULL)) |
| goto end; |
| if (!EC_GROUP_get_cofactor(group, ec_cofactor, NULL)) |
| goto end; |
| |
| if (!ec_p || !ec_a || !ec_b || !ec_gen || !ec_order || !ec_cofactor) |
| goto end; |
| |
| len = BN_num_bits(ec_order); |
| |
| if ((tmp_len = (size_t)BN_num_bytes(ec_p)) > buf_len) |
| buf_len = tmp_len; |
| if ((tmp_len = (size_t)BN_num_bytes(ec_a)) > buf_len) |
| buf_len = tmp_len; |
| if ((tmp_len = (size_t)BN_num_bytes(ec_b)) > buf_len) |
| buf_len = tmp_len; |
| if ((tmp_len = (size_t)BN_num_bytes(ec_gen)) > buf_len) |
| buf_len = tmp_len; |
| if ((tmp_len = (size_t)BN_num_bytes(ec_order)) > buf_len) |
| buf_len = tmp_len; |
| if ((tmp_len = (size_t)BN_num_bytes(ec_cofactor)) > buf_len) |
| buf_len = tmp_len; |
| |
| buffer = (unsigned char *)OPENSSL_malloc(buf_len); |
| |
| if (buffer == NULL) { |
| perror("OPENSSL_malloc"); |
| goto end; |
| } |
| |
| ecparam_print_var(out, ec_p, "ec_p", len, buffer); |
| ecparam_print_var(out, ec_a, "ec_a", len, buffer); |
| ecparam_print_var(out, ec_b, "ec_b", len, buffer); |
| ecparam_print_var(out, ec_gen, "ec_gen", len, buffer); |
| ecparam_print_var(out, ec_order, "ec_order", len, buffer); |
| ecparam_print_var(out, ec_cofactor, "ec_cofactor", len, buffer); |
| |
| BIO_printf(out, "\n\n"); |
| |
| BIO_printf(out, "EC_GROUP *get_ec_group_%d(void)\n\t{\n", len); |
| BIO_printf(out, "\tint ok=0;\n"); |
| BIO_printf(out, "\tEC_GROUP *group = NULL;\n"); |
| BIO_printf(out, "\tEC_POINT *point = NULL;\n"); |
| BIO_printf(out, "\tBIGNUM *tmp_1 = NULL, *tmp_2 = NULL, " |
| "*tmp_3 = NULL;\n\n"); |
| BIO_printf(out, "\tif ((tmp_1 = BN_bin2bn(ec_p_%d, " |
| "sizeof(ec_p_%d), NULL)) == NULL)\n\t\t" |
| "goto err;\n", len, len); |
| BIO_printf(out, "\tif ((tmp_2 = BN_bin2bn(ec_a_%d, " |
| "sizeof(ec_a_%d), NULL)) == NULL)\n\t\t" |
| "goto err;\n", len, len); |
| BIO_printf(out, "\tif ((tmp_3 = BN_bin2bn(ec_b_%d, " |
| "sizeof(ec_b_%d), NULL)) == NULL)\n\t\t" |
| "goto err;\n", len, len); |
| if (is_prime) { |
| BIO_printf(out, "\tif ((group = EC_GROUP_new_curve_" |
| "GFp(tmp_1, tmp_2, tmp_3, NULL)) == NULL)" |
| "\n\t\tgoto err;\n\n"); |
| } else { |
| /* TODO */ |
| goto end; |
| } |
| BIO_printf(out, "\t/* build generator */\n"); |
| BIO_printf(out, "\tif ((tmp_1 = BN_bin2bn(ec_gen_%d, " |
| "sizeof(ec_gen_%d), tmp_1)) == NULL)" |
| "\n\t\tgoto err;\n", len, len); |
| BIO_printf(out, "\tpoint = EC_POINT_bn2point(group, tmp_1, " |
| "NULL, NULL);\n"); |
| BIO_printf(out, "\tif (point == NULL)\n\t\tgoto err;\n"); |
| BIO_printf(out, "\tif ((tmp_2 = BN_bin2bn(ec_order_%d, " |
| "sizeof(ec_order_%d), tmp_2)) == NULL)" |
| "\n\t\tgoto err;\n", len, len); |
| BIO_printf(out, "\tif ((tmp_3 = BN_bin2bn(ec_cofactor_%d, " |
| "sizeof(ec_cofactor_%d), tmp_3)) == NULL)" |
| "\n\t\tgoto err;\n", len, len); |
| BIO_printf(out, "\tif (!EC_GROUP_set_generator(group, point," |
| " tmp_2, tmp_3))\n\t\tgoto err;\n"); |
| BIO_printf(out, "\n\tok=1;\n"); |
| BIO_printf(out, "err:\n"); |
| BIO_printf(out, "\tif (tmp_1)\n\t\tBN_free(tmp_1);\n"); |
| BIO_printf(out, "\tif (tmp_2)\n\t\tBN_free(tmp_2);\n"); |
| BIO_printf(out, "\tif (tmp_3)\n\t\tBN_free(tmp_3);\n"); |
| BIO_printf(out, "\tif (point)\n\t\tEC_POINT_free(point);\n"); |
| BIO_printf(out, "\tif (!ok)\n"); |
| BIO_printf(out, "\t\t{\n"); |
| BIO_printf(out, "\t\tEC_GROUP_free(group);\n"); |
| BIO_printf(out, "\t\tgroup = NULL;\n"); |
| BIO_printf(out, "\t\t}\n"); |
| BIO_printf(out, "\treturn(group);\n\t}\n"); |
| } |
| |
| if (!noout) { |
| if (outformat == FORMAT_ASN1) |
| i = i2d_ECPKParameters_bio(out, group); |
| else if (outformat == FORMAT_PEM) |
| i = PEM_write_bio_ECPKParameters(out, group); |
| else { |
| BIO_printf(bio_err, "bad output format specified for" |
| " outfile\n"); |
| goto end; |
| } |
| if (!i) { |
| BIO_printf(bio_err, "unable to write elliptic " |
| "curve parameters\n"); |
| ERR_print_errors(bio_err); |
| goto end; |
| } |
| } |
| |
| if (need_rand) { |
| app_RAND_load_file(NULL, bio_err, (inrand != NULL)); |
| if (inrand != NULL) |
| BIO_printf(bio_err, "%ld semi-random bytes loaded\n", |
| app_RAND_load_files(inrand)); |
| } |
| |
| if (genkey) { |
| EC_KEY *eckey = EC_KEY_new(); |
| |
| if (eckey == NULL) |
| goto end; |
| |
| assert(need_rand); |
| |
| if (EC_KEY_set_group(eckey, group) == 0) |
| goto end; |
| |
| if (!EC_KEY_generate_key(eckey)) { |
| EC_KEY_free(eckey); |
| goto end; |
| } |
| if (outformat == FORMAT_ASN1) |
| i = i2d_ECPrivateKey_bio(out, eckey); |
| else if (outformat == FORMAT_PEM) |
| i = PEM_write_bio_ECPrivateKey(out, eckey, NULL, |
| NULL, 0, NULL, NULL); |
| else { |
| BIO_printf(bio_err, "bad output format specified " |
| "for outfile\n"); |
| EC_KEY_free(eckey); |
| goto end; |
| } |
| EC_KEY_free(eckey); |
| } |
| |
| if (need_rand) |
| app_RAND_write_file(NULL, bio_err); |
| |
| ret = 0; |
| end: |
| if (ec_p) |
| BN_free(ec_p); |
| if (ec_a) |
| BN_free(ec_a); |
| if (ec_b) |
| BN_free(ec_b); |
| if (ec_gen) |
| BN_free(ec_gen); |
| if (ec_order) |
| BN_free(ec_order); |
| if (ec_cofactor) |
| BN_free(ec_cofactor); |
| if (buffer) |
| OPENSSL_free(buffer); |
| if (in != NULL) |
| BIO_free(in); |
| if (out != NULL) |
| BIO_free_all(out); |
| if (group != NULL) |
| EC_GROUP_free(group); |
| apps_shutdown(); |
| OPENSSL_EXIT(ret); |
| } |
| |
| static int ecparam_print_var(BIO *out, BIGNUM *in, const char *var, |
| int len, unsigned char *buffer) |
| { |
| BIO_printf(out, "static unsigned char %s_%d[] = {", var, len); |
| if (BN_is_zero(in)) |
| BIO_printf(out, "\n\t0x00"); |
| else { |
| int i, l; |
| |
| l = BN_bn2bin(in, buffer); |
| for (i = 0; i < l - 1; i++) { |
| if ((i % 12) == 0) |
| BIO_printf(out, "\n\t"); |
| BIO_printf(out, "0x%02X,", buffer[i]); |
| } |
| if ((i % 12) == 0) |
| BIO_printf(out, "\n\t"); |
| BIO_printf(out, "0x%02X", buffer[i]); |
| } |
| BIO_printf(out, "\n\t};\n\n"); |
| return 1; |
| } |
| #else /* !OPENSSL_NO_EC */ |
| |
| # if PEDANTIC |
| static void *dummy = &dummy; |
| # endif |
| |
| #endif |
