303 lines
9.6 KiB
C
303 lines
9.6 KiB
C
/*
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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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static OPT_PAIR conv_forms[] = {
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{"compressed", POINT_CONVERSION_COMPRESSED},
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{"uncompressed", POINT_CONVERSION_UNCOMPRESSED},
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{"hybrid", POINT_CONVERSION_HYBRID},
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{NULL}
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};
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static OPT_PAIR param_enc[] = {
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{"named_curve", OPENSSL_EC_NAMED_CURVE},
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{"explicit", 0},
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{NULL}
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};
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typedef enum OPTION_choice {
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OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
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OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_IN, OPT_OUT,
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OPT_NOOUT, OPT_TEXT, OPT_PARAM_OUT, OPT_PUBIN, OPT_PUBOUT,
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OPT_PASSIN, OPT_PASSOUT, OPT_PARAM_ENC, OPT_CONV_FORM, OPT_CIPHER,
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OPT_NO_PUBLIC
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} OPTION_CHOICE;
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OPTIONS ec_options[] = {
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{"help", OPT_HELP, '-', "Display this summary"},
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{"in", OPT_IN, '<', "Input file"},
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{"inform", OPT_INFORM, 'F', "Input format - DER or PEM"},
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{"out", OPT_OUT, '>', "Output file"},
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{"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
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{"noout", OPT_NOOUT, '-', "Don't print key out"},
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{"text", OPT_TEXT, '-', "Print the key"},
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{"param_out", OPT_PARAM_OUT, '-', "Print the elliptic curve parameters"},
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{"pubin", OPT_PUBIN, '-'},
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{"pubout", OPT_PUBOUT, '-'},
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{"no_public", OPT_NO_PUBLIC, '-', "exclude public key from private key"},
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{"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
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{"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
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{"param_enc", OPT_PARAM_ENC, 's',
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"Specifies the way the ec parameters are encoded"},
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{"conv_form", OPT_CONV_FORM, 's', "Specifies the point conversion form "},
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{"", OPT_CIPHER, '-', "Any supported cipher"},
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# ifndef OPENSSL_NO_ENGINE
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{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
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# endif
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{NULL}
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};
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int ec_main(int argc, char **argv)
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{
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BIO *in = NULL, *out = NULL;
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EC_KEY *eckey = NULL;
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const EC_GROUP *group;
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const EVP_CIPHER *enc = NULL;
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point_conversion_form_t form = POINT_CONVERSION_UNCOMPRESSED;
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char *infile = NULL, *outfile = NULL, *prog;
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char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL;
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OPTION_CHOICE o;
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int asn1_flag = OPENSSL_EC_NAMED_CURVE, new_form = 0, new_asn1_flag = 0;
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int informat = FORMAT_PEM, outformat = FORMAT_PEM, text = 0, noout = 0;
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int pubin = 0, pubout = 0, param_out = 0, i, ret = 1, private = 0;
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int no_public = 0;
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prog = opt_init(argc, argv, ec_options);
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while ((o = opt_next()) != OPT_EOF) {
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switch (o) {
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case OPT_EOF:
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case OPT_ERR:
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opthelp:
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BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
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goto end;
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case OPT_HELP:
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opt_help(ec_options);
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ret = 0;
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goto end;
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case OPT_INFORM:
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if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
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goto opthelp;
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break;
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case OPT_IN:
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infile = opt_arg();
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break;
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case OPT_OUTFORM:
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if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
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goto opthelp;
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break;
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case OPT_OUT:
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outfile = opt_arg();
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break;
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case OPT_NOOUT:
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noout = 1;
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break;
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case OPT_TEXT:
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text = 1;
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break;
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case OPT_PARAM_OUT:
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param_out = 1;
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break;
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case OPT_PUBIN:
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pubin = 1;
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break;
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case OPT_PUBOUT:
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pubout = 1;
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break;
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case OPT_PASSIN:
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passinarg = opt_arg();
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break;
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case OPT_PASSOUT:
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passoutarg = opt_arg();
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break;
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case OPT_ENGINE:
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(void)setup_engine(opt_arg(), 0);
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break;
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case OPT_CIPHER:
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if (!opt_cipher(opt_unknown(), &enc))
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goto opthelp;
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break;
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case OPT_CONV_FORM:
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if (!opt_pair(opt_arg(), conv_forms, &i))
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goto opthelp;
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new_form = 1;
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form = i;
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break;
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case OPT_PARAM_ENC:
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if (!opt_pair(opt_arg(), param_enc, &i))
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goto opthelp;
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new_asn1_flag = 1;
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asn1_flag = i;
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break;
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case OPT_NO_PUBLIC:
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no_public = 1;
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break;
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}
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}
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argc = opt_num_rest();
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argv = opt_rest();
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private = param_out || pubin || pubout ? 0 : 1;
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if (text && !pubin)
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private = 1;
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if (!app_passwd(passinarg, passoutarg, &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_open_default(infile, 'r', informat);
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if (in == NULL)
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goto end;
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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 {
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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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}
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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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out = bio_open_owner(outfile, outformat, private);
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if (out == NULL)
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goto end;
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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 (no_public)
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EC_KEY_set_enc_flags(eckey, EC_PKEY_NO_PUBKEY);
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if (text) {
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assert(pubin || private);
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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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}
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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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assert(private);
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i = i2d_ECPrivateKey_bio(out, eckey);
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}
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} else {
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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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assert(private);
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i = PEM_write_bio_ECPrivateKey(out, eckey, enc,
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NULL, 0, NULL, passout);
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}
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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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BIO_free(in);
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BIO_free_all(out);
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EC_KEY_free(eckey);
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OPENSSL_free(passin);
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OPENSSL_free(passout);
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return (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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