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CommitLineData
d4a8f90c
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1/* apps/ec.c */
2/*
3 * Written by Nils Larsch for the OpenSSL project.
4 */
4d94ae00 5/* ====================================================================
9dd84053 6 * Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved.
4d94ae00
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7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
ae5c8664 13 * notice, this list of conditions and the following disclaimer.
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14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
18 * distribution.
19 *
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
24 *
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * openssl-core@openssl.org.
29 *
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
38 *
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
52 *
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
56 *
57 */
4d94ae00 58
6e04afb8 59#include <openssl/opensslconf.h>
d4a8f90c 60#ifndef OPENSSL_NO_EC
ae5c8664
MC
61# include <stdio.h>
62# include <stdlib.h>
63# include <string.h>
64# include "apps.h"
65# include <openssl/bio.h>
66# include <openssl/err.h>
67# include <openssl/evp.h>
68# include <openssl/pem.h>
4d94ae00 69
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70# undef PROG
71# define PROG ec_main
4d94ae00 72
6977c7e2
TH
73/*-
74 * -inform arg - input format - default PEM (one of DER, NET or PEM)
eefa6e4e
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75 * -outform arg - output format - default PEM
76 * -in arg - input file - default stdin
77 * -out arg - output file - default stdout
78 * -des - encrypt output if PEM format with DES in cbc mode
79 * -text - print a text version
80 * -param_out - print the elliptic curve parameters
81 * -conv_form arg - specifies the point encoding form
82 * -param_enc arg - specifies the parameter encoding
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83 */
84
85int MAIN(int, char **);
86
87int MAIN(int argc, char **argv)
88{
ae5c8664
MC
89 int ret = 1;
90 EC_KEY *eckey = NULL;
91 const EC_GROUP *group;
92 int i, badops = 0;
93 const EVP_CIPHER *enc = NULL;
94 BIO *in = NULL, *out = NULL;
95 int informat, outformat, text = 0, noout = 0;
96 int pubin = 0, pubout = 0, param_out = 0;
97 char *infile, *outfile, *prog, *engine;
aa01b82c 98 ENGINE *e = NULL;
ae5c8664
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99 char *passargin = NULL, *passargout = NULL;
100 char *passin = NULL, *passout = NULL;
101 point_conversion_form_t form = POINT_CONVERSION_UNCOMPRESSED;
102 int new_form = 0;
103 int asn1_flag = OPENSSL_EC_NAMED_CURVE;
104 int new_asn1_flag = 0;
4d94ae00 105
ae5c8664 106 apps_startup();
4d94ae00 107
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108 if (bio_err == NULL)
109 if ((bio_err = BIO_new(BIO_s_file())) != NULL)
110 BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
4d94ae00 111
ae5c8664
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112 if (!load_config(bio_err, NULL))
113 goto end;
3647bee2 114
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115 engine = NULL;
116 infile = NULL;
117 outfile = NULL;
118 informat = FORMAT_PEM;
119 outformat = FORMAT_PEM;
4d94ae00 120
ae5c8664
MC
121 prog = argv[0];
122 argc--;
123 argv++;
124 while (argc >= 1) {
125 if (strcmp(*argv, "-inform") == 0) {
126 if (--argc < 1)
127 goto bad;
128 informat = str2fmt(*(++argv));
129 } else if (strcmp(*argv, "-outform") == 0) {
130 if (--argc < 1)
131 goto bad;
132 outformat = str2fmt(*(++argv));
133 } else if (strcmp(*argv, "-in") == 0) {
134 if (--argc < 1)
135 goto bad;
136 infile = *(++argv);
137 } else if (strcmp(*argv, "-out") == 0) {
138 if (--argc < 1)
139 goto bad;
140 outfile = *(++argv);
141 } else if (strcmp(*argv, "-passin") == 0) {
142 if (--argc < 1)
143 goto bad;
144 passargin = *(++argv);
145 } else if (strcmp(*argv, "-passout") == 0) {
146 if (--argc < 1)
147 goto bad;
148 passargout = *(++argv);
149 } else if (strcmp(*argv, "-engine") == 0) {
150 if (--argc < 1)
151 goto bad;
152 engine = *(++argv);
153 } else if (strcmp(*argv, "-noout") == 0)
154 noout = 1;
155 else if (strcmp(*argv, "-text") == 0)
156 text = 1;
157 else if (strcmp(*argv, "-conv_form") == 0) {
158 if (--argc < 1)
159 goto bad;
160 ++argv;
161 new_form = 1;
162 if (strcmp(*argv, "compressed") == 0)
163 form = POINT_CONVERSION_COMPRESSED;
164 else if (strcmp(*argv, "uncompressed") == 0)
165 form = POINT_CONVERSION_UNCOMPRESSED;
166 else if (strcmp(*argv, "hybrid") == 0)
167 form = POINT_CONVERSION_HYBRID;
168 else
169 goto bad;
170 } else if (strcmp(*argv, "-param_enc") == 0) {
171 if (--argc < 1)
172 goto bad;
173 ++argv;
174 new_asn1_flag = 1;
175 if (strcmp(*argv, "named_curve") == 0)
176 asn1_flag = OPENSSL_EC_NAMED_CURVE;
177 else if (strcmp(*argv, "explicit") == 0)
178 asn1_flag = 0;
179 else
180 goto bad;
181 } else if (strcmp(*argv, "-param_out") == 0)
182 param_out = 1;
183 else if (strcmp(*argv, "-pubin") == 0)
184 pubin = 1;
185 else if (strcmp(*argv, "-pubout") == 0)
186 pubout = 1;
187 else if ((enc = EVP_get_cipherbyname(&(argv[0][1]))) == NULL) {
188 BIO_printf(bio_err, "unknown option %s\n", *argv);
189 badops = 1;
190 break;
191 }
192 argc--;
193 argv++;
194 }
4d94ae00 195
ae5c8664
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196 if (badops) {
197 bad:
198 BIO_printf(bio_err, "%s [options] <infile >outfile\n", prog);
199 BIO_printf(bio_err, "where options are\n");
200 BIO_printf(bio_err, " -inform arg input format - "
201 "DER or PEM\n");
202 BIO_printf(bio_err, " -outform arg output format - "
203 "DER or PEM\n");
204 BIO_printf(bio_err, " -in arg input file\n");
205 BIO_printf(bio_err, " -passin arg input file pass "
206 "phrase source\n");
207 BIO_printf(bio_err, " -out arg output file\n");
208 BIO_printf(bio_err, " -passout arg output file pass "
209 "phrase source\n");
210 BIO_printf(bio_err, " -engine e use engine e, "
211 "possibly a hardware device.\n");
212 BIO_printf(bio_err, " -des encrypt PEM output, "
213 "instead of 'des' every other \n"
214 " cipher "
215 "supported by OpenSSL can be used\n");
216 BIO_printf(bio_err, " -text print the key\n");
217 BIO_printf(bio_err, " -noout don't print key out\n");
218 BIO_printf(bio_err, " -param_out print the elliptic "
219 "curve parameters\n");
220 BIO_printf(bio_err, " -conv_form arg specifies the "
221 "point conversion form \n");
222 BIO_printf(bio_err, " possible values:"
223 " compressed\n");
224 BIO_printf(bio_err, " "
225 " uncompressed (default)\n");
226 BIO_printf(bio_err, " " " hybrid\n");
227 BIO_printf(bio_err, " -param_enc arg specifies the way"
228 " the ec parameters are encoded\n");
229 BIO_printf(bio_err, " in the asn1 der " "encoding\n");
230 BIO_printf(bio_err, " possible values:"
231 " named_curve (default)\n");
232 BIO_printf(bio_err, " "
233 "explicit\n");
234 goto end;
235 }
4d94ae00 236
ae5c8664 237 ERR_load_crypto_strings();
4d94ae00 238
aa01b82c 239 e = setup_engine(bio_err, engine, 0);
4d94ae00 240
ae5c8664
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241 if (!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
242 BIO_printf(bio_err, "Error getting passwords\n");
243 goto end;
244 }
4d94ae00 245
ae5c8664
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246 in = BIO_new(BIO_s_file());
247 out = BIO_new(BIO_s_file());
248 if ((in == NULL) || (out == NULL)) {
249 ERR_print_errors(bio_err);
250 goto end;
251 }
4d94ae00 252
ae5c8664
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253 if (infile == NULL)
254 BIO_set_fp(in, stdin, BIO_NOCLOSE);
255 else {
256 if (BIO_read_filename(in, infile) <= 0) {
257 perror(infile);
258 goto end;
259 }
260 }
4d94ae00 261
ae5c8664
MC
262 BIO_printf(bio_err, "read EC key\n");
263 if (informat == FORMAT_ASN1) {
264 if (pubin)
265 eckey = d2i_EC_PUBKEY_bio(in, NULL);
266 else
267 eckey = d2i_ECPrivateKey_bio(in, NULL);
268 } else if (informat == FORMAT_PEM) {
269 if (pubin)
270 eckey = PEM_read_bio_EC_PUBKEY(in, NULL, NULL, NULL);
271 else
272 eckey = PEM_read_bio_ECPrivateKey(in, NULL, NULL, passin);
273 } else {
274 BIO_printf(bio_err, "bad input format specified for key\n");
275 goto end;
276 }
277 if (eckey == NULL) {
278 BIO_printf(bio_err, "unable to load Key\n");
279 ERR_print_errors(bio_err);
280 goto end;
281 }
4d94ae00 282
ae5c8664
MC
283 if (outfile == NULL) {
284 BIO_set_fp(out, stdout, BIO_NOCLOSE);
285# ifdef OPENSSL_SYS_VMS
286 {
287 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
288 out = BIO_push(tmpbio, out);
289 }
290# endif
291 } else {
292 if (BIO_write_filename(out, outfile) <= 0) {
293 perror(outfile);
294 goto end;
295 }
296 }
4d94ae00 297
ae5c8664 298 group = EC_KEY_get0_group(eckey);
9dd84053 299
ae5c8664
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300 if (new_form)
301 EC_KEY_set_conv_form(eckey, form);
4d94ae00 302
ae5c8664
MC
303 if (new_asn1_flag)
304 EC_KEY_set_asn1_flag(eckey, asn1_flag);
eefa6e4e 305
ae5c8664
MC
306 if (text)
307 if (!EC_KEY_print(out, eckey, 0)) {
308 perror(outfile);
309 ERR_print_errors(bio_err);
310 goto end;
311 }
4d94ae00 312
ae5c8664
MC
313 if (noout) {
314 ret = 0;
315 goto end;
316 }
eefa6e4e 317
ae5c8664
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318 BIO_printf(bio_err, "writing EC key\n");
319 if (outformat == FORMAT_ASN1) {
320 if (param_out)
321 i = i2d_ECPKParameters_bio(out, group);
322 else if (pubin || pubout)
323 i = i2d_EC_PUBKEY_bio(out, eckey);
324 else
325 i = i2d_ECPrivateKey_bio(out, eckey);
326 } else if (outformat == FORMAT_PEM) {
327 if (param_out)
328 i = PEM_write_bio_ECPKParameters(out, group);
329 else if (pubin || pubout)
330 i = PEM_write_bio_EC_PUBKEY(out, eckey);
331 else
332 i = PEM_write_bio_ECPrivateKey(out, eckey, enc,
333 NULL, 0, NULL, passout);
334 } else {
335 BIO_printf(bio_err, "bad output format specified for " "outfile\n");
336 goto end;
337 }
eefa6e4e 338
ae5c8664
MC
339 if (!i) {
340 BIO_printf(bio_err, "unable to write private key\n");
341 ERR_print_errors(bio_err);
342 } else
343 ret = 0;
344 end:
345 if (in)
346 BIO_free(in);
347 if (out)
348 BIO_free_all(out);
349 if (eckey)
350 EC_KEY_free(eckey);
0df1caa7 351 release_engine(e);
ae5c8664
MC
352 if (passin)
353 OPENSSL_free(passin);
354 if (passout)
355 OPENSSL_free(passout);
356 apps_shutdown();
357 OPENSSL_EXIT(ret);
4d94ae00 358}
ae5c8664 359#else /* !OPENSSL_NO_EC */
fe41d985
DSH
360
361# if PEDANTIC
ae5c8664 362static void *dummy = &dummy;
fe41d985
DSH
363# endif
364
4d94ae00 365#endif