365 lines
12 KiB
C
365 lines
12 KiB
C
/* apps/ec.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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#include <openssl/opensslconf.h>
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#ifndef OPENSSL_NO_EC
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# include <stdio.h>
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# include <stdlib.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/evp.h>
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# include <openssl/pem.h>
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# undef PROG
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# define PROG ec_main
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/*-
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* -inform arg - input format - default PEM (one of DER, NET 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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* -des - encrypt output if PEM format with DES in cbc mode
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* -text - print a text version
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* -param_out - print the elliptic curve parameters
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* -conv_form arg - specifies the point encoding form
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* -param_enc arg - specifies the parameter encoding
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*/
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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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int ret = 1;
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EC_KEY *eckey = NULL;
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const EC_GROUP *group;
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int i, badops = 0;
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const EVP_CIPHER *enc = NULL;
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BIO *in = NULL, *out = NULL;
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int informat, outformat, text = 0, noout = 0;
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int pubin = 0, pubout = 0, param_out = 0;
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char *infile, *outfile, *prog, *engine;
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char *passargin = NULL, *passargout = NULL;
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char *passin = NULL, *passout = 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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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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engine = NULL;
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infile = NULL;
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outfile = NULL;
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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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if (strcmp(*argv, "-inform") == 0) {
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if (--argc < 1)
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goto bad;
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informat = str2fmt(*(++argv));
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} else if (strcmp(*argv, "-outform") == 0) {
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if (--argc < 1)
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goto bad;
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outformat = str2fmt(*(++argv));
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} else if (strcmp(*argv, "-in") == 0) {
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if (--argc < 1)
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goto bad;
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infile = *(++argv);
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} else if (strcmp(*argv, "-out") == 0) {
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if (--argc < 1)
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goto bad;
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outfile = *(++argv);
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} else if (strcmp(*argv, "-passin") == 0) {
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if (--argc < 1)
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goto bad;
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passargin = *(++argv);
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} else if (strcmp(*argv, "-passout") == 0) {
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if (--argc < 1)
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goto bad;
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passargout = *(++argv);
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} else if (strcmp(*argv, "-engine") == 0) {
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if (--argc < 1)
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goto bad;
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engine = *(++argv);
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} else if (strcmp(*argv, "-noout") == 0)
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noout = 1;
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else if (strcmp(*argv, "-text") == 0)
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text = 1;
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else if (strcmp(*argv, "-conv_form") == 0) {
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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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} else if (strcmp(*argv, "-param_enc") == 0) {
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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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} else if (strcmp(*argv, "-param_out") == 0)
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param_out = 1;
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else if (strcmp(*argv, "-pubin") == 0)
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pubin = 1;
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else if (strcmp(*argv, "-pubout") == 0)
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pubout = 1;
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else if ((enc = EVP_get_cipherbyname(&(argv[0][1]))) == NULL) {
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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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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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"DER or PEM\n");
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BIO_printf(bio_err, " -outform arg output format - "
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"DER or PEM\n");
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BIO_printf(bio_err, " -in arg input file\n");
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BIO_printf(bio_err, " -passin arg input file pass "
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"phrase source\n");
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BIO_printf(bio_err, " -out arg output file\n");
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BIO_printf(bio_err, " -passout arg output file pass "
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"phrase source\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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BIO_printf(bio_err, " -des encrypt PEM output, "
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"instead of 'des' every other \n"
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" cipher "
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"supported by OpenSSL can be used\n");
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BIO_printf(bio_err, " -text print the key\n");
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BIO_printf(bio_err, " -noout don't print key out\n");
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BIO_printf(bio_err, " -param_out print the elliptic "
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"curve parameters\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, " " " 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 " "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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goto end;
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}
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ERR_load_crypto_strings();
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# ifndef OPENSSL_NO_ENGINE
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setup_engine(bio_err, engine, 0);
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# endif
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if (!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
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BIO_printf(bio_err, "Error getting passwords\n");
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goto end;
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}
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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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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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if (BIO_read_filename(in, infile) <= 0) {
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perror(infile);
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goto end;
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}
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}
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BIO_printf(bio_err, "read EC key\n");
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if (informat == FORMAT_ASN1) {
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if (pubin)
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eckey = d2i_EC_PUBKEY_bio(in, NULL);
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else
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eckey = d2i_ECPrivateKey_bio(in, NULL);
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} else if (informat == FORMAT_PEM) {
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if (pubin)
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eckey = PEM_read_bio_EC_PUBKEY(in, NULL, NULL, NULL);
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else
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eckey = PEM_read_bio_ECPrivateKey(in, NULL, NULL, passin);
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} else {
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BIO_printf(bio_err, "bad input format specified for key\n");
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goto end;
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}
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if (eckey == NULL) {
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BIO_printf(bio_err, "unable to load Key\n");
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ERR_print_errors(bio_err);
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goto end;
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}
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if (outfile == NULL) {
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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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} else {
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if (BIO_write_filename(out, outfile) <= 0) {
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perror(outfile);
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goto end;
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}
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}
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group = EC_KEY_get0_group(eckey);
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if (new_form)
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EC_KEY_set_conv_form(eckey, form);
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if (new_asn1_flag)
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EC_KEY_set_asn1_flag(eckey, asn1_flag);
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if (text)
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if (!EC_KEY_print(out, eckey, 0)) {
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perror(outfile);
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ERR_print_errors(bio_err);
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goto end;
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}
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if (noout) {
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ret = 0;
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goto end;
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}
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BIO_printf(bio_err, "writing EC key\n");
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if (outformat == FORMAT_ASN1) {
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if (param_out)
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i = i2d_ECPKParameters_bio(out, group);
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else if (pubin || pubout)
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i = i2d_EC_PUBKEY_bio(out, eckey);
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else
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i = i2d_ECPrivateKey_bio(out, eckey);
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} else if (outformat == FORMAT_PEM) {
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if (param_out)
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i = PEM_write_bio_ECPKParameters(out, group);
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else if (pubin || pubout)
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i = PEM_write_bio_EC_PUBKEY(out, eckey);
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else
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i = PEM_write_bio_ECPrivateKey(out, eckey, enc,
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NULL, 0, NULL, passout);
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} else {
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BIO_printf(bio_err, "bad output format specified for " "outfile\n");
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goto end;
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}
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if (!i) {
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BIO_printf(bio_err, "unable to write private key\n");
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ERR_print_errors(bio_err);
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} else
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ret = 0;
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end:
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if (in)
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BIO_free(in);
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if (out)
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BIO_free_all(out);
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if (eckey)
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EC_KEY_free(eckey);
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if (passin)
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OPENSSL_free(passin);
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if (passout)
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OPENSSL_free(passout);
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apps_shutdown();
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OPENSSL_EXIT(ret);
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}
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#else /* !OPENSSL_NO_EC */
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# if PEDANTIC
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static void *dummy = &dummy;
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# endif
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#endif
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