| 1 | /* apps/ec.c */
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| 2 | /*
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| 3 | * Written by Nils Larsch for the OpenSSL project.
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| 4 | */
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| 5 | /* ====================================================================
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| 6 | * Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved.
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| 7 | *
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| 8 | * Redistribution and use in source and binary forms, with or without
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| 9 | * modification, are permitted provided that the following conditions
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| 10 | * are met:
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| 11 | *
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| 12 | * 1. Redistributions of source code must retain the above copyright
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| 13 | * notice, this list of conditions and the following disclaimer.
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| 14 | *
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| 15 | * 2. Redistributions in binary form must reproduce the above copyright
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| 16 | * notice, this list of conditions and the following disclaimer in
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| 17 | * the documentation and/or other materials provided with the
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| 18 | * distribution.
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| 19 | *
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| 20 | * 3. All advertising materials mentioning features or use of this
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| 21 | * software must display the following acknowledgment:
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| 22 | * "This product includes software developed by the OpenSSL Project
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| 23 | * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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| 24 | *
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| 25 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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| 26 | * endorse or promote products derived from this software without
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| 27 | * prior written permission. For written permission, please contact
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| 28 | * openssl-core@openssl.org.
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| 29 | *
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| 30 | * 5. Products derived from this software may not be called "OpenSSL"
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| 31 | * nor may "OpenSSL" appear in their names without prior written
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| 32 | * permission of the OpenSSL Project.
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| 33 | *
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| 34 | * 6. Redistributions of any form whatsoever must retain the following
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| 35 | * acknowledgment:
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| 36 | * "This product includes software developed by the OpenSSL Project
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| 37 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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| 38 | *
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| 39 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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| 40 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 41 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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| 42 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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| 43 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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| 44 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 45 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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| 46 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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| 48 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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| 49 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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| 50 | * OF THE POSSIBILITY OF SUCH DAMAGE.
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| 51 | * ====================================================================
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| 52 | *
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| 53 | * This product includes cryptographic software written by Eric Young
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| 54 | * (eay@cryptsoft.com). This product includes software written by Tim
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| 55 | * Hudson (tjh@cryptsoft.com).
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| 56 | *
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| 57 | */
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| 58 |
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| 59 | #include <openssl/opensslconf.h>
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| 60 | #ifndef OPENSSL_NO_EC
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| 61 | # include <stdio.h>
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| 62 | # include <stdlib.h>
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| 63 | # include <string.h>
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| 64 | # include "apps.h"
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| 65 | # include <openssl/bio.h>
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| 66 | # include <openssl/err.h>
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| 67 | # include <openssl/evp.h>
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| 68 | # include <openssl/pem.h>
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| 69 |
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| 70 | # undef PROG
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| 71 | # define PROG ec_main
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| 72 |
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| 73 | /*-
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| 74 | * -inform arg - input format - default PEM (one of DER, NET or PEM)
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| 75 | * -outform arg - output format - default PEM
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| 76 | * -in arg - input file - default stdin
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| 77 | * -out arg - output file - default stdout
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| 78 | * -des - encrypt output if PEM format with DES in cbc mode
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| 79 | * -text - print a text version
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| 80 | * -param_out - print the elliptic curve parameters
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| 81 | * -conv_form arg - specifies the point encoding form
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| 82 | * -param_enc arg - specifies the parameter encoding
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| 83 | */
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| 84 |
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| 85 | int MAIN(int, char **);
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| 86 |
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| 87 | int MAIN(int argc, char **argv)
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| 88 | {
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| 89 | int ret = 1;
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| 90 | EC_KEY *eckey = NULL;
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| 91 | const EC_GROUP *group;
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| 92 | int i, badops = 0;
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| 93 | const EVP_CIPHER *enc = NULL;
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| 94 | BIO *in = NULL, *out = NULL;
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| 95 | int informat, outformat, text = 0, noout = 0;
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| 96 | int pubin = 0, pubout = 0, param_out = 0;
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| 97 | char *infile, *outfile, *prog, *engine;
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| 98 | ENGINE *e = NULL;
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| 99 | char *passargin = NULL, *passargout = NULL;
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| 100 | char *passin = NULL, *passout = NULL;
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| 101 | point_conversion_form_t form = POINT_CONVERSION_UNCOMPRESSED;
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| 102 | int new_form = 0;
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| 103 | int asn1_flag = OPENSSL_EC_NAMED_CURVE;
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| 104 | int new_asn1_flag = 0;
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| 105 |
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| 106 | apps_startup();
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| 107 |
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| 108 | if (bio_err == NULL)
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| 109 | if ((bio_err = BIO_new(BIO_s_file())) != NULL)
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| 110 | BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
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| 111 |
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| 112 | if (!load_config(bio_err, NULL))
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| 113 | goto end;
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| 114 |
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| 115 | engine = NULL;
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| 116 | infile = NULL;
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| 117 | outfile = NULL;
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| 118 | informat = FORMAT_PEM;
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| 119 | outformat = FORMAT_PEM;
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| 120 |
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| 121 | prog = argv[0];
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| 122 | argc--;
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| 123 | argv++;
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| 124 | while (argc >= 1) {
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| 125 | if (strcmp(*argv, "-inform") == 0) {
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| 126 | if (--argc < 1)
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| 127 | goto bad;
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| 128 | informat = str2fmt(*(++argv));
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| 129 | } else if (strcmp(*argv, "-outform") == 0) {
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| 130 | if (--argc < 1)
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| 131 | goto bad;
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| 132 | outformat = str2fmt(*(++argv));
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| 133 | } else if (strcmp(*argv, "-in") == 0) {
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| 134 | if (--argc < 1)
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| 135 | goto bad;
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| 136 | infile = *(++argv);
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| 137 | } else if (strcmp(*argv, "-out") == 0) {
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| 138 | if (--argc < 1)
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| 139 | goto bad;
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| 140 | outfile = *(++argv);
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| 141 | } else if (strcmp(*argv, "-passin") == 0) {
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| 142 | if (--argc < 1)
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| 143 | goto bad;
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| 144 | passargin = *(++argv);
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| 145 | } else if (strcmp(*argv, "-passout") == 0) {
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| 146 | if (--argc < 1)
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| 147 | goto bad;
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| 148 | passargout = *(++argv);
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| 149 | } else if (strcmp(*argv, "-engine") == 0) {
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| 150 | if (--argc < 1)
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| 151 | goto bad;
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| 152 | engine = *(++argv);
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| 153 | } else if (strcmp(*argv, "-noout") == 0)
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| 154 | noout = 1;
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| 155 | else if (strcmp(*argv, "-text") == 0)
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| 156 | text = 1;
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| 157 | else if (strcmp(*argv, "-conv_form") == 0) {
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| 158 | if (--argc < 1)
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| 159 | goto bad;
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| 160 | ++argv;
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| 161 | new_form = 1;
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| 162 | if (strcmp(*argv, "compressed") == 0)
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| 163 | form = POINT_CONVERSION_COMPRESSED;
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| 164 | else if (strcmp(*argv, "uncompressed") == 0)
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| 165 | form = POINT_CONVERSION_UNCOMPRESSED;
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| 166 | else if (strcmp(*argv, "hybrid") == 0)
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| 167 | form = POINT_CONVERSION_HYBRID;
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| 168 | else
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| 169 | goto bad;
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| 170 | } else if (strcmp(*argv, "-param_enc") == 0) {
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| 171 | if (--argc < 1)
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| 172 | goto bad;
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| 173 | ++argv;
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| 174 | new_asn1_flag = 1;
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| 175 | if (strcmp(*argv, "named_curve") == 0)
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| 176 | asn1_flag = OPENSSL_EC_NAMED_CURVE;
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| 177 | else if (strcmp(*argv, "explicit") == 0)
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| 178 | asn1_flag = 0;
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| 179 | else
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| 180 | goto bad;
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| 181 | } else if (strcmp(*argv, "-param_out") == 0)
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| 182 | param_out = 1;
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| 183 | else if (strcmp(*argv, "-pubin") == 0)
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| 184 | pubin = 1;
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| 185 | else if (strcmp(*argv, "-pubout") == 0)
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| 186 | pubout = 1;
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| 187 | else if ((enc = EVP_get_cipherbyname(&(argv[0][1]))) == NULL) {
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| 188 | BIO_printf(bio_err, "unknown option %s\n", *argv);
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| 189 | badops = 1;
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| 190 | break;
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| 191 | }
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| 192 | argc--;
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| 193 | argv++;
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| 194 | }
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| 195 |
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| 196 | if (badops) {
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| 197 | bad:
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| 198 | BIO_printf(bio_err, "%s [options] <infile >outfile\n", prog);
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| 199 | BIO_printf(bio_err, "where options are\n");
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| 200 | BIO_printf(bio_err, " -inform arg input format - "
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| 201 | "DER or PEM\n");
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| 202 | BIO_printf(bio_err, " -outform arg output format - "
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| 203 | "DER or PEM\n");
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| 204 | BIO_printf(bio_err, " -in arg input file\n");
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| 205 | BIO_printf(bio_err, " -passin arg input file pass "
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| 206 | "phrase source\n");
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| 207 | BIO_printf(bio_err, " -out arg output file\n");
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| 208 | BIO_printf(bio_err, " -passout arg output file pass "
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| 209 | "phrase source\n");
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| 210 | BIO_printf(bio_err, " -engine e use engine e, "
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| 211 | "possibly a hardware device.\n");
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| 212 | BIO_printf(bio_err, " -des encrypt PEM output, "
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| 213 | "instead of 'des' every other \n"
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| 214 | " cipher "
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| 215 | "supported by OpenSSL can be used\n");
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| 216 | BIO_printf(bio_err, " -text print the key\n");
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| 217 | BIO_printf(bio_err, " -noout don't print key out\n");
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| 218 | BIO_printf(bio_err, " -param_out print the elliptic "
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| 219 | "curve parameters\n");
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| 220 | BIO_printf(bio_err, " -conv_form arg specifies the "
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| 221 | "point conversion form \n");
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| 222 | BIO_printf(bio_err, " possible values:"
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| 223 | " compressed\n");
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| 224 | BIO_printf(bio_err, " "
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| 225 | " uncompressed (default)\n");
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| 226 | BIO_printf(bio_err, " " " hybrid\n");
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| 227 | BIO_printf(bio_err, " -param_enc arg specifies the way"
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| 228 | " the ec parameters are encoded\n");
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| 229 | BIO_printf(bio_err, " in the asn1 der " "encoding\n");
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| 230 | BIO_printf(bio_err, " possible values:"
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| 231 | " named_curve (default)\n");
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| 232 | BIO_printf(bio_err, " "
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| 233 | "explicit\n");
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| 234 | goto end;
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| 235 | }
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| 236 |
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| 237 | ERR_load_crypto_strings();
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| 238 |
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| 239 | e = setup_engine(bio_err, engine, 0);
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| 240 |
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| 241 | if (!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
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| 242 | BIO_printf(bio_err, "Error getting passwords\n");
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| 243 | goto end;
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| 244 | }
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| 245 |
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| 246 | in = BIO_new(BIO_s_file());
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| 247 | out = BIO_new(BIO_s_file());
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| 248 | if ((in == NULL) || (out == NULL)) {
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| 249 | ERR_print_errors(bio_err);
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| 250 | goto end;
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| 251 | }
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| 252 |
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| 253 | if (infile == NULL)
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| 254 | BIO_set_fp(in, stdin, BIO_NOCLOSE);
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| 255 | else {
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| 256 | if (BIO_read_filename(in, infile) <= 0) {
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| 257 | perror(infile);
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| 258 | goto end;
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| 259 | }
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| 260 | }
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| 261 |
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| 262 | BIO_printf(bio_err, "read EC key\n");
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| 263 | if (informat == FORMAT_ASN1) {
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| 264 | if (pubin)
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| 265 | eckey = d2i_EC_PUBKEY_bio(in, NULL);
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| 266 | else
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| 267 | eckey = d2i_ECPrivateKey_bio(in, NULL);
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| 268 | } else if (informat == FORMAT_PEM) {
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| 269 | if (pubin)
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| 270 | eckey = PEM_read_bio_EC_PUBKEY(in, NULL, NULL, NULL);
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| 271 | else
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| 272 | eckey = PEM_read_bio_ECPrivateKey(in, NULL, NULL, passin);
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| 273 | } else {
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| 274 | BIO_printf(bio_err, "bad input format specified for key\n");
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| 275 | goto end;
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| 276 | }
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| 277 | if (eckey == NULL) {
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| 278 | BIO_printf(bio_err, "unable to load Key\n");
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| 279 | ERR_print_errors(bio_err);
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| 280 | goto end;
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| 281 | }
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| 282 |
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| 283 | if (outfile == NULL) {
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| 284 | BIO_set_fp(out, stdout, BIO_NOCLOSE);
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| 285 | # ifdef OPENSSL_SYS_VMS
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| 286 | {
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| 287 | BIO *tmpbio = BIO_new(BIO_f_linebuffer());
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| 288 | out = BIO_push(tmpbio, out);
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| 289 | }
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| 290 | # endif
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| 291 | } else {
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| 292 | if (BIO_write_filename(out, outfile) <= 0) {
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| 293 | perror(outfile);
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| 294 | goto end;
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| 295 | }
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| 296 | }
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| 297 |
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| 298 | group = EC_KEY_get0_group(eckey);
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| 299 |
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| 300 | if (new_form)
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| 301 | EC_KEY_set_conv_form(eckey, form);
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| 302 |
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| 303 | if (new_asn1_flag)
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| 304 | EC_KEY_set_asn1_flag(eckey, asn1_flag);
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| 305 |
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| 306 | if (text)
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| 307 | if (!EC_KEY_print(out, eckey, 0)) {
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| 308 | perror(outfile);
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| 309 | ERR_print_errors(bio_err);
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| 310 | goto end;
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| 311 | }
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| 312 |
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| 313 | if (noout) {
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| 314 | ret = 0;
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| 315 | goto end;
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| 316 | }
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| 317 |
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| 318 | BIO_printf(bio_err, "writing EC key\n");
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| 319 | if (outformat == FORMAT_ASN1) {
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| 320 | if (param_out)
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| 321 | i = i2d_ECPKParameters_bio(out, group);
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| 322 | else if (pubin || pubout)
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| 323 | i = i2d_EC_PUBKEY_bio(out, eckey);
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| 324 | else
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| 325 | i = i2d_ECPrivateKey_bio(out, eckey);
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| 326 | } else if (outformat == FORMAT_PEM) {
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| 327 | if (param_out)
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| 328 | i = PEM_write_bio_ECPKParameters(out, group);
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| 329 | else if (pubin || pubout)
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| 330 | i = PEM_write_bio_EC_PUBKEY(out, eckey);
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| 331 | else
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| 332 | i = PEM_write_bio_ECPrivateKey(out, eckey, enc,
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| 333 | NULL, 0, NULL, passout);
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| 334 | } else {
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| 335 | BIO_printf(bio_err, "bad output format specified for " "outfile\n");
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| 336 | goto end;
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| 337 | }
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| 338 |
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| 339 | if (!i) {
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| 340 | BIO_printf(bio_err, "unable to write private key\n");
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| 341 | ERR_print_errors(bio_err);
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| 342 | } else
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| 343 | ret = 0;
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| 344 | end:
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| 345 | if (in)
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| 346 | BIO_free(in);
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| 347 | if (out)
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| 348 | BIO_free_all(out);
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| 349 | if (eckey)
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| 350 | EC_KEY_free(eckey);
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| 351 | release_engine(e);
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| 352 | if (passin)
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| 353 | OPENSSL_free(passin);
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| 354 | if (passout)
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| 355 | OPENSSL_free(passout);
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| 356 | apps_shutdown();
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| 357 | OPENSSL_EXIT(ret);
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| 358 | }
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| 359 | #else /* !OPENSSL_NO_EC */
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| 360 |
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| 361 | # if PEDANTIC
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| 362 | static void *dummy = &dummy;
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| 363 | # endif
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| 364 |
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| 365 | #endif
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