735 lines
20 KiB
C
735 lines
20 KiB
C
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/* apps/ecparam.c */
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/*
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* Written by Nils Larsch for the OpenSSL project.
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*/
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/* ====================================================================
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* Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@openssl.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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/* ====================================================================
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* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
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*
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* Portions of the attached software ("Contribution") are developed by
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* SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project.
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*
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* The Contribution is licensed pursuant to the OpenSSL open source
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* license provided above.
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*
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* The elliptic curve binary polynomial software is originally written by
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* Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories.
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*
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*/
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#include <openssl/opensslconf.h>
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#ifndef OPENSSL_NO_EC
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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <string.h>
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#include "apps.h"
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#include <openssl/bio.h>
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#include <openssl/err.h>
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#include <openssl/bn.h>
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#include <openssl/ec.h>
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#include <openssl/x509.h>
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#include <openssl/pem.h>
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#undef PROG
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#define PROG ecparam_main
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/* -inform arg - input format - default PEM (DER or PEM)
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* -outform arg - output format - default PEM
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* -in arg - input file - default stdin
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* -out arg - output file - default stdout
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* -noout - do not print the ec parameter
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* -text - print the ec parameters in text form
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* -check - validate the ec parameters
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* -C - print a 'C' function creating the parameters
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* -name arg - use the ec parameters with 'short name' name
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* -list_curves - prints a list of all currently available curve 'short names'
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* -conv_form arg - specifies the point conversion form
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* - possible values: compressed
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* uncompressed (default)
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* hybrid
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* -param_enc arg - specifies the way the ec parameters are encoded
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* in the asn1 der encoding
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* possible values: named_curve (default)
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* explicit
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* -no_seed - if 'explicit' parameters are choosen do not use the seed
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* -genkey - generate ec key
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* -rand file - files to use for random number input
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* -engine e - use engine e, possibly a hardware device
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*/
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static int ecparam_print_var(BIO *,BIGNUM *,const char *,int,unsigned char *);
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int MAIN(int, char **);
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int MAIN(int argc, char **argv)
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{
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EC_GROUP *group = NULL;
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point_conversion_form_t form = POINT_CONVERSION_UNCOMPRESSED;
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int new_form = 0;
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int asn1_flag = OPENSSL_EC_NAMED_CURVE;
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int new_asn1_flag = 0;
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char *curve_name = NULL, *inrand = NULL;
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int list_curves = 0, no_seed = 0, check = 0,
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badops = 0, text = 0, i, need_rand = 0, genkey = 0;
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char *infile = NULL, *outfile = NULL, *prog;
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BIO *in = NULL, *out = NULL;
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int informat, outformat, noout = 0, C = 0, ret = 1;
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#ifndef OPENSSL_NO_ENGINE
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ENGINE *e = NULL;
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#endif
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char *engine = NULL;
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BIGNUM *ec_p = NULL, *ec_a = NULL, *ec_b = NULL,
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*ec_gen = NULL, *ec_order = NULL, *ec_cofactor = NULL;
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unsigned char *buffer = NULL;
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apps_startup();
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if (bio_err == NULL)
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if ((bio_err=BIO_new(BIO_s_file())) != NULL)
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BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
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if (!load_config(bio_err, NULL))
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goto end;
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informat=FORMAT_PEM;
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outformat=FORMAT_PEM;
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prog=argv[0];
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argc--;
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argv++;
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while (argc >= 1)
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{
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if (strcmp(*argv,"-inform") == 0)
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{
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if (--argc < 1) goto bad;
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informat=str2fmt(*(++argv));
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}
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else if (strcmp(*argv,"-outform") == 0)
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{
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if (--argc < 1) goto bad;
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outformat=str2fmt(*(++argv));
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}
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else if (strcmp(*argv,"-in") == 0)
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{
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if (--argc < 1) goto bad;
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infile= *(++argv);
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}
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else if (strcmp(*argv,"-out") == 0)
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{
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if (--argc < 1) goto bad;
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outfile= *(++argv);
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}
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else if (strcmp(*argv,"-text") == 0)
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text = 1;
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else if (strcmp(*argv,"-C") == 0)
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C = 1;
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else if (strcmp(*argv,"-check") == 0)
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check = 1;
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else if (strcmp (*argv, "-name") == 0)
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{
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if (--argc < 1)
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goto bad;
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curve_name = *(++argv);
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}
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else if (strcmp(*argv, "-list_curves") == 0)
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list_curves = 1;
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else if (strcmp(*argv, "-conv_form") == 0)
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{
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if (--argc < 1)
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goto bad;
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++argv;
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new_form = 1;
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if (strcmp(*argv, "compressed") == 0)
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form = POINT_CONVERSION_COMPRESSED;
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else if (strcmp(*argv, "uncompressed") == 0)
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form = POINT_CONVERSION_UNCOMPRESSED;
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else if (strcmp(*argv, "hybrid") == 0)
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form = POINT_CONVERSION_HYBRID;
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else
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goto bad;
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}
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else if (strcmp(*argv, "-param_enc") == 0)
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{
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if (--argc < 1)
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goto bad;
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++argv;
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new_asn1_flag = 1;
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if (strcmp(*argv, "named_curve") == 0)
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asn1_flag = OPENSSL_EC_NAMED_CURVE;
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else if (strcmp(*argv, "explicit") == 0)
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asn1_flag = 0;
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else
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goto bad;
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}
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else if (strcmp(*argv, "-no_seed") == 0)
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no_seed = 1;
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else if (strcmp(*argv, "-noout") == 0)
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noout=1;
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else if (strcmp(*argv,"-genkey") == 0)
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{
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genkey=1;
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need_rand=1;
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}
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else if (strcmp(*argv, "-rand") == 0)
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{
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if (--argc < 1) goto bad;
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inrand= *(++argv);
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need_rand=1;
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}
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else if(strcmp(*argv, "-engine") == 0)
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{
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if (--argc < 1) goto bad;
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engine = *(++argv);
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}
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else
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{
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BIO_printf(bio_err,"unknown option %s\n",*argv);
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badops=1;
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break;
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}
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argc--;
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argv++;
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}
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if (badops)
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{
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bad:
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BIO_printf(bio_err, "%s [options] <infile >outfile\n",prog);
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BIO_printf(bio_err, "where options are\n");
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BIO_printf(bio_err, " -inform arg input format - "
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"default PEM (DER or PEM)\n");
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BIO_printf(bio_err, " -outform arg output format - "
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"default PEM\n");
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BIO_printf(bio_err, " -in arg input file - "
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"default stdin\n");
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BIO_printf(bio_err, " -out arg output file - "
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"default stdout\n");
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BIO_printf(bio_err, " -noout do not print the "
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"ec parameter\n");
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BIO_printf(bio_err, " -text print the ec "
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"parameters in text form\n");
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BIO_printf(bio_err, " -check validate the ec "
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"parameters\n");
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BIO_printf(bio_err, " -C print a 'C' "
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"function creating the parameters\n");
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BIO_printf(bio_err, " -name arg use the "
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"ec parameters with 'short name' name\n");
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BIO_printf(bio_err, " -list_curves prints a list of "
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"all currently available curve 'short names'\n");
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BIO_printf(bio_err, " -conv_form arg specifies the "
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"point conversion form \n");
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BIO_printf(bio_err, " possible values:"
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" compressed\n");
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BIO_printf(bio_err, " "
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" uncompressed (default)\n");
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BIO_printf(bio_err, " "
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" hybrid\n");
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BIO_printf(bio_err, " -param_enc arg specifies the way"
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" the ec parameters are encoded\n");
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BIO_printf(bio_err, " in the asn1 der "
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"encoding\n");
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BIO_printf(bio_err, " possible values:"
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" named_curve (default)\n");
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BIO_printf(bio_err, " "
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" explicit\n");
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BIO_printf(bio_err, " -no_seed if 'explicit'"
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" parameters are choosen do not"
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" use the seed\n");
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BIO_printf(bio_err, " -genkey generate ec"
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" key\n");
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BIO_printf(bio_err, " -rand file files to use for"
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" random number input\n");
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BIO_printf(bio_err, " -engine e use engine e, "
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"possibly a hardware device\n");
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goto end;
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}
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ERR_load_crypto_strings();
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in=BIO_new(BIO_s_file());
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out=BIO_new(BIO_s_file());
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if ((in == NULL) || (out == NULL))
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{
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ERR_print_errors(bio_err);
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goto end;
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}
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if (infile == NULL)
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BIO_set_fp(in,stdin,BIO_NOCLOSE);
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else
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{
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if (BIO_read_filename(in,infile) <= 0)
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{
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perror(infile);
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goto end;
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}
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}
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if (outfile == NULL)
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{
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BIO_set_fp(out,stdout,BIO_NOCLOSE);
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#ifdef OPENSSL_SYS_VMS
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{
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BIO *tmpbio = BIO_new(BIO_f_linebuffer());
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out = BIO_push(tmpbio, out);
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}
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#endif
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}
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else
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{
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if (BIO_write_filename(out,outfile) <= 0)
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{
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perror(outfile);
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goto end;
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}
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}
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#ifndef OPENSSL_NO_ENGINE
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e = setup_engine(bio_err, engine, 0);
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#endif
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if (list_curves)
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{
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EC_builtin_curve *curves = NULL;
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size_t crv_len = 0;
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size_t n = 0;
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crv_len = EC_get_builtin_curves(NULL, 0);
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curves = OPENSSL_malloc((int)(sizeof(EC_builtin_curve) * crv_len));
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if (curves == NULL)
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goto end;
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if (!EC_get_builtin_curves(curves, crv_len))
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{
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OPENSSL_free(curves);
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goto end;
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}
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for (n = 0; n < crv_len; n++)
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{
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const char *comment;
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const char *sname;
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comment = curves[n].comment;
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|
|
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)
|
||
|
|
{
|
||
|
|
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);
|
||
|
|
|
||
|
|
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
|