2 * Written by Nils Larsch for the OpenSSL project.
4 /* ====================================================================
5 * Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
19 * 3. All advertising materials mentioning features or use of this
20 * software must display the following acknowledgment:
21 * "This product includes software developed by the OpenSSL Project
22 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
24 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
25 * endorse or promote products derived from this software without
26 * prior written permission. For written permission, please contact
27 * openssl-core@openssl.org.
29 * 5. Products derived from this software may not be called "OpenSSL"
30 * nor may "OpenSSL" appear in their names without prior written
31 * permission of the OpenSSL Project.
33 * 6. Redistributions of any form whatsoever must retain the following
35 * "This product includes software developed by the OpenSSL Project
36 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
38 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
39 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
40 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
41 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
42 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
43 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
44 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
45 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
46 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
47 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
48 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
49 * OF THE POSSIBILITY OF SUCH DAMAGE.
50 * ====================================================================
52 * This product includes cryptographic software written by Eric Young
53 * (eay@cryptsoft.com). This product includes software written by Tim
54 * Hudson (tjh@cryptsoft.com).
58 #include <openssl/opensslconf.h>
60 NON_EMPTY_TRANSLATION_UNIT
67 # include <openssl/bio.h>
68 # include <openssl/err.h>
69 # include <openssl/evp.h>
70 # include <openssl/pem.h>
72 static OPT_PAIR conv_forms[] = {
73 {"compressed", POINT_CONVERSION_COMPRESSED},
74 {"uncompressed", POINT_CONVERSION_UNCOMPRESSED},
75 {"hybrid", POINT_CONVERSION_HYBRID},
79 static OPT_PAIR param_enc[] = {
80 {"named_curve", OPENSSL_EC_NAMED_CURVE},
85 typedef enum OPTION_choice {
86 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
87 OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_IN, OPT_OUT,
88 OPT_NOOUT, OPT_TEXT, OPT_PARAM_OUT, OPT_PUBIN, OPT_PUBOUT,
89 OPT_PASSIN, OPT_PASSOUT, OPT_PARAM_ENC, OPT_CONV_FORM, OPT_CIPHER,
90 OPT_NO_PUBLIC, OPT_CHECK
93 OPTIONS ec_options[] = {
94 {"help", OPT_HELP, '-', "Display this summary"},
95 {"in", OPT_IN, '<', "Input file"},
96 {"inform", OPT_INFORM, 'F', "Input format - DER or PEM"},
97 {"out", OPT_OUT, '>', "Output file"},
98 {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
99 {"noout", OPT_NOOUT, '-', "Don't print key out"},
100 {"text", OPT_TEXT, '-', "Print the key"},
101 {"param_out", OPT_PARAM_OUT, '-', "Print the elliptic curve parameters"},
102 {"pubin", OPT_PUBIN, '-'},
103 {"pubout", OPT_PUBOUT, '-'},
104 {"no_public", OPT_NO_PUBLIC, '-', "exclude public key from private key"},
105 {"check", OPT_CHECK, '-', "check key consistency"},
106 {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
107 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
108 {"param_enc", OPT_PARAM_ENC, 's',
109 "Specifies the way the ec parameters are encoded"},
110 {"conv_form", OPT_CONV_FORM, 's', "Specifies the point conversion form "},
111 {"", OPT_CIPHER, '-', "Any supported cipher"},
112 # ifndef OPENSSL_NO_ENGINE
113 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
118 int ec_main(int argc, char **argv)
120 BIO *in = NULL, *out = NULL;
121 EC_KEY *eckey = NULL;
122 const EC_GROUP *group;
123 const EVP_CIPHER *enc = NULL;
124 point_conversion_form_t form = POINT_CONVERSION_UNCOMPRESSED;
125 char *infile = NULL, *outfile = NULL, *prog;
126 char *passin = NULL, *passout = NULL, *passinarg = NULL, *passoutarg = NULL;
128 int asn1_flag = OPENSSL_EC_NAMED_CURVE, new_form = 0, new_asn1_flag = 0;
129 int informat = FORMAT_PEM, outformat = FORMAT_PEM, text = 0, noout = 0;
130 int pubin = 0, pubout = 0, param_out = 0, i, ret = 1, private = 0;
131 int no_public = 0, check = 0;
133 prog = opt_init(argc, argv, ec_options);
134 while ((o = opt_next()) != OPT_EOF) {
139 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
142 opt_help(ec_options);
146 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
153 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
175 passinarg = opt_arg();
178 passoutarg = opt_arg();
181 (void)setup_engine(opt_arg(), 0);
184 if (!opt_cipher(opt_unknown(), &enc))
188 if (!opt_pair(opt_arg(), conv_forms, &i))
194 if (!opt_pair(opt_arg(), param_enc, &i))
207 argc = opt_num_rest();
211 private = param_out || pubin || pubout ? 0 : 1;
215 if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
216 BIO_printf(bio_err, "Error getting passwords\n");
220 in = bio_open_default(infile, 'r', informat);
224 BIO_printf(bio_err, "read EC key\n");
225 if (informat == FORMAT_ASN1) {
227 eckey = d2i_EC_PUBKEY_bio(in, NULL);
229 eckey = d2i_ECPrivateKey_bio(in, NULL);
232 eckey = PEM_read_bio_EC_PUBKEY(in, NULL, NULL, NULL);
234 eckey = PEM_read_bio_ECPrivateKey(in, NULL, NULL, passin);
237 BIO_printf(bio_err, "unable to load Key\n");
238 ERR_print_errors(bio_err);
242 out = bio_open_owner(outfile, outformat, private);
246 group = EC_KEY_get0_group(eckey);
249 EC_KEY_set_conv_form(eckey, form);
252 EC_KEY_set_asn1_flag(eckey, asn1_flag);
255 EC_KEY_set_enc_flags(eckey, EC_PKEY_NO_PUBKEY);
258 assert(pubin || private);
259 if (!EC_KEY_print(out, eckey, 0)) {
261 ERR_print_errors(bio_err);
267 if (EC_KEY_check_key(eckey) == 1) {
268 BIO_printf(bio_err, "EC Key valid.\n");
270 BIO_printf(bio_err, "EC Key Invalid!\n");
271 ERR_print_errors(bio_err);
280 BIO_printf(bio_err, "writing EC key\n");
281 if (outformat == FORMAT_ASN1) {
283 i = i2d_ECPKParameters_bio(out, group);
284 else if (pubin || pubout)
285 i = i2d_EC_PUBKEY_bio(out, eckey);
288 i = i2d_ECPrivateKey_bio(out, eckey);
292 i = PEM_write_bio_ECPKParameters(out, group);
293 else if (pubin || pubout)
294 i = PEM_write_bio_EC_PUBKEY(out, eckey);
297 i = PEM_write_bio_ECPrivateKey(out, eckey, enc,
298 NULL, 0, NULL, passout);
303 BIO_printf(bio_err, "unable to write private key\n");
304 ERR_print_errors(bio_err);
311 OPENSSL_free(passin);
312 OPENSSL_free(passout);