X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=apps%2Fecparam.c;h=51877f5991ec93ca4e779157b784da00b067098f;hp=3bd0a974873b32cc7b101ccc76ba7ce16586c1f6;hb=d420729b9e709b7a6fc227a073f526d86d8767e6;hpb=1c3e4a366022c043ae87ff9715905e97582bf649 diff --git a/apps/ecparam.c b/apps/ecparam.c index 3bd0a97487..51877f5991 100644 --- a/apps/ecparam.c +++ b/apps/ecparam.c @@ -1,709 +1,444 @@ -/* apps/ecparam.c */ /* - * Written by Nils Larsch for the OpenSSL project. - */ -/* ==================================================================== - * Copyright (c) 1998-2002 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 2002-2018 The OpenSSL Project Authors. All Rights Reserved. + * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved * - */ -/* ==================================================================== - * 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. - * - */ -#ifndef OPENSSL_NO_EC -#include -#include -#include -#include -#include -#include "apps.h" -#include -#include -#include -#include -#include -#include - -#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 choosen 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 + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html */ - -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; - ENGINE *e = NULL; - 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] 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 choosen 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; - } - } - - e = setup_engine(bio_err, engine, 0); - - if (list_curves) - { - EC_builtin_curve *curves = NULL; - size_t crv_len = 0; - size_t n = 0; - size_t len; - - crv_len = EC_get_builtin_curves(NULL, 0); - - curves = OPENSSL_malloc(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 = ""; - - len = BIO_printf(out, " %-10s: ", sname); - if (len + strlen(comment) > 80) - BIO_printf(out, "\n%80s\n", comment); - else - BIO_printf(out, "%s\n", comment); - } - - OPENSSL_free(curves); - ret = 0; - goto end; - } - - if (curve_name != NULL) - { - int 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_nid(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) - { - if (group == NULL) - BIO_printf(bio_err, "no elliptic curve parameters\n"); - 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); - } - else - 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); - - eckey->group = group; - - if (!EC_KEY_generate_key(eckey)) - { - eckey->group = NULL; - 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"); - eckey->group = NULL; - EC_KEY_free(eckey); - goto end; - } - eckey->group = NULL; - 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); +#include +#ifdef OPENSSL_NO_EC +NON_EMPTY_TRANSLATION_UNIT +#else + +# include +# include +# include +# include +# include "apps.h" +# include "progs.h" +# include +# include +# include +# include +# include +# include + +typedef enum OPTION_choice { + OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, + OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_TEXT, OPT_C, + OPT_CHECK, OPT_LIST_CURVES, OPT_NO_SEED, OPT_NOOUT, OPT_NAME, + OPT_CONV_FORM, OPT_PARAM_ENC, OPT_GENKEY, OPT_ENGINE, + OPT_R_ENUM +} OPTION_CHOICE; + +const OPTIONS ecparam_options[] = { + {"help", OPT_HELP, '-', "Display this summary"}, + {"inform", OPT_INFORM, 'F', "Input format - default PEM (DER or PEM)"}, + {"outform", OPT_OUTFORM, 'F', "Output format - default PEM"}, + {"in", OPT_IN, '<', "Input file - default stdin"}, + {"out", OPT_OUT, '>', "Output file - default stdout"}, + {"text", OPT_TEXT, '-', "Print the ec parameters in text form"}, + {"C", OPT_C, '-', "Print a 'C' function creating the parameters"}, + {"check", OPT_CHECK, '-', "Validate the ec parameters"}, + {"list_curves", OPT_LIST_CURVES, '-', + "Prints a list of all curve 'short names'"}, + {"no_seed", OPT_NO_SEED, '-', + "If 'explicit' parameters are chosen do not use the seed"}, + {"noout", OPT_NOOUT, '-', "Do not print the ec parameter"}, + {"name", OPT_NAME, 's', + "Use the ec parameters with specified 'short name'"}, + {"conv_form", OPT_CONV_FORM, 's', "Specifies the point conversion form "}, + {"param_enc", OPT_PARAM_ENC, 's', + "Specifies the way the ec parameters are encoded"}, + {"genkey", OPT_GENKEY, '-', "Generate ec key"}, + OPT_R_OPTIONS, +# ifndef OPENSSL_NO_ENGINE + {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, +# endif + {NULL} +}; + +static OPT_PAIR forms[] = { + {"compressed", POINT_CONVERSION_COMPRESSED}, + {"uncompressed", POINT_CONVERSION_UNCOMPRESSED}, + {"hybrid", POINT_CONVERSION_HYBRID}, + {NULL} +}; + +static OPT_PAIR encodings[] = { + {"named_curve", OPENSSL_EC_NAMED_CURVE}, + {"explicit", 0}, + {NULL} +}; + +int ecparam_main(int argc, char **argv) +{ + ENGINE *e = NULL; + BIGNUM *ec_gen = NULL, *ec_order = NULL, *ec_cofactor = NULL; + BIGNUM *ec_p = NULL, *ec_a = NULL, *ec_b = NULL; + BIO *in = NULL, *out = NULL; + EC_GROUP *group = NULL; + point_conversion_form_t form = POINT_CONVERSION_UNCOMPRESSED; + char *curve_name = NULL; + char *infile = NULL, *outfile = NULL, *prog; + unsigned char *buffer = NULL; + OPTION_CHOICE o; + int asn1_flag = OPENSSL_EC_NAMED_CURVE, new_asn1_flag = 0; + int informat = FORMAT_PEM, outformat = FORMAT_PEM, noout = 0, C = 0; + int ret = 1, private = 0; + int list_curves = 0, no_seed = 0, check = 0, new_form = 0; + int text = 0, i, genkey = 0; + + prog = opt_init(argc, argv, ecparam_options); + while ((o = opt_next()) != OPT_EOF) { + switch (o) { + case OPT_EOF: + case OPT_ERR: + opthelp: + BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); + goto end; + case OPT_HELP: + opt_help(ecparam_options); + ret = 0; + goto end; + case OPT_INFORM: + if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat)) + goto opthelp; + break; + case OPT_IN: + infile = opt_arg(); + break; + case OPT_OUTFORM: + if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat)) + goto opthelp; + break; + case OPT_OUT: + outfile = opt_arg(); + break; + case OPT_TEXT: + text = 1; + break; + case OPT_C: + C = 1; + break; + case OPT_CHECK: + check = 1; + break; + case OPT_LIST_CURVES: + list_curves = 1; + break; + case OPT_NO_SEED: + no_seed = 1; + break; + case OPT_NOOUT: + noout = 1; + break; + case OPT_NAME: + curve_name = opt_arg(); + break; + case OPT_CONV_FORM: + if (!opt_pair(opt_arg(), forms, &new_form)) + goto opthelp; + form = new_form; + new_form = 1; + break; + case OPT_PARAM_ENC: + if (!opt_pair(opt_arg(), encodings, &asn1_flag)) + goto opthelp; + new_asn1_flag = 1; + break; + case OPT_GENKEY: + genkey = 1; + break; + case OPT_R_CASES: + if (!opt_rand(o)) + goto end; + break; + case OPT_ENGINE: + e = setup_engine(opt_arg(), 0); + break; + } + } + argc = opt_num_rest(); + if (argc != 0) + goto opthelp; + + private = genkey ? 1 : 0; + + in = bio_open_default(infile, 'r', informat); + if (in == NULL) + goto end; + out = bio_open_owner(outfile, outformat, private); + if (out == NULL) + goto end; + + if (list_curves) { + EC_builtin_curve *curves = NULL; + size_t crv_len = EC_get_builtin_curves(NULL, 0); + size_t n; + + curves = app_malloc((int)sizeof(*curves) * crv_len, "list curves"); + 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") == 0) { + BIO_printf(bio_err, "using curve name prime192v1 " + "instead of secp192r1\n"); + nid = NID_X9_62_prime192v1; + } else if (strcmp(curve_name, "secp256r1") == 0) { + 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) + nid = EC_curve_nist2nid(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 { + group = PEM_read_bio_ECPKParameters(in, NULL, NULL, NULL); + } + 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("Can't allocate BN"); + goto end; + } + + is_prime = (EC_METHOD_get_field_type(meth) == NID_X9_62_prime_field); + if (!is_prime) { + BIO_printf(bio_err, "Can only handle X9.62 prime fields\n"); + goto end; + } + + if (!EC_GROUP_get_curve_GFp(group, ec_p, ec_a, ec_b, NULL)) + 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 = app_malloc(buf_len, "BN buffer"); + + BIO_printf(out, "EC_GROUP *get_ec_group_%d(void)\n{\n", len); + print_bignum_var(out, ec_p, "ec_p", len, buffer); + print_bignum_var(out, ec_a, "ec_a", len, buffer); + print_bignum_var(out, ec_b, "ec_b", len, buffer); + print_bignum_var(out, ec_gen, "ec_gen", len, buffer); + print_bignum_var(out, ec_order, "ec_order", len, buffer); + print_bignum_var(out, ec_cofactor, "ec_cofactor", len, buffer); + BIO_printf(out, " int ok = 0;\n" + " EC_GROUP *group = NULL;\n" + " EC_POINT *point = NULL;\n" + " BIGNUM *tmp_1 = NULL;\n" + " BIGNUM *tmp_2 = NULL;\n" + " BIGNUM *tmp_3 = NULL;\n" + "\n"); + + BIO_printf(out, " if ((tmp_1 = BN_bin2bn(ec_p_%d, sizeof(ec_p_%d), NULL)) == NULL)\n" + " goto err;\n", len, len); + BIO_printf(out, " if ((tmp_2 = BN_bin2bn(ec_a_%d, sizeof(ec_a_%d), NULL)) == NULL)\n" + " goto err;\n", len, len); + BIO_printf(out, " if ((tmp_3 = BN_bin2bn(ec_b_%d, sizeof(ec_b_%d), NULL)) == NULL)\n" + " goto err;\n", len, len); + BIO_printf(out, " if ((group = EC_GROUP_new_curve_GFp(tmp_1, tmp_2, tmp_3, NULL)) == NULL)\n" + " goto err;\n" + "\n"); + BIO_printf(out, " /* build generator */\n"); + BIO_printf(out, " if ((tmp_1 = BN_bin2bn(ec_gen_%d, sizeof(ec_gen_%d), tmp_1)) == NULL)\n" + " goto err;\n", len, len); + BIO_printf(out, " point = EC_POINT_bn2point(group, tmp_1, NULL, NULL);\n"); + BIO_printf(out, " if (point == NULL)\n" + " goto err;\n"); + BIO_printf(out, " if ((tmp_2 = BN_bin2bn(ec_order_%d, sizeof(ec_order_%d), tmp_2)) == NULL)\n" + " goto err;\n", len, len); + BIO_printf(out, " if ((tmp_3 = BN_bin2bn(ec_cofactor_%d, sizeof(ec_cofactor_%d), tmp_3)) == NULL)\n" + " goto err;\n", len, len); + BIO_printf(out, " if (!EC_GROUP_set_generator(group, point, tmp_2, tmp_3))\n" + " goto err;\n" + "ok = 1;" + "\n"); + BIO_printf(out, "err:\n" + " BN_free(tmp_1);\n" + " BN_free(tmp_2);\n" + " BN_free(tmp_3);\n" + " EC_POINT_free(point);\n" + " if (!ok) {\n" + " EC_GROUP_free(group);\n" + " return NULL;\n" + " }\n" + " return (group);\n" + "}\n"); + } + + if (!noout) { + if (outformat == FORMAT_ASN1) + i = i2d_ECPKParameters_bio(out, group); + else + i = PEM_write_bio_ECPKParameters(out, group); + if (!i) { + BIO_printf(bio_err, "unable to write elliptic " + "curve parameters\n"); + ERR_print_errors(bio_err); + goto end; + } + } + + if (genkey) { + EC_KEY *eckey = EC_KEY_new(); + + if (eckey == NULL) + goto end; + + if (EC_KEY_set_group(eckey, group) == 0) { + BIO_printf(bio_err, "unable to set group when generating key\n"); + EC_KEY_free(eckey); + ERR_print_errors(bio_err); + goto end; + } + + if (!EC_KEY_generate_key(eckey)) { + BIO_printf(bio_err, "unable to generate key\n"); + EC_KEY_free(eckey); + ERR_print_errors(bio_err); + goto end; + } + assert(private); + if (outformat == FORMAT_ASN1) + i = i2d_ECPrivateKey_bio(out, eckey); + else + i = PEM_write_bio_ECPrivateKey(out, eckey, NULL, + NULL, 0, NULL, NULL); + EC_KEY_free(eckey); + } + + ret = 0; + end: + BN_free(ec_p); + BN_free(ec_a); + BN_free(ec_b); + BN_free(ec_gen); + BN_free(ec_order); + BN_free(ec_cofactor); + OPENSSL_free(buffer); + EC_GROUP_free(group); + release_engine(e); + BIO_free(in); + BIO_free_all(out); + return ret; } -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