source: openssl/trunk/apps/ec.c@ 808

Last change on this file since 808 was 808, checked in by dmik, 11 years ago

openssl: Merge version 1.0.0n from vendor to trunk.
File size: 10.5 KB
Line 
1/* apps/ec.c */
2/*
3 * Written by Nils Larsch for the OpenSSL project.
4 */
5/* ====================================================================
6 * Copyright (c) 1998-2005 The OpenSSL Project. All rights reserved.
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
13 * notice, this list of conditions and the following disclaimer.
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 */
58
59#include <openssl/opensslconf.h>
60#ifndef OPENSSL_NO_EC
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>
69
70#undef PROG
71#define PROG ec_main
72
73/* -inform arg - input format - default PEM (one of DER, NET or PEM)
74 * -outform arg - output format - default PEM
75 * -in arg - input file - default stdin
76 * -out arg - output file - default stdout
77 * -des - encrypt output if PEM format with DES in cbc mode
78 * -text - print a text version
79 * -param_out - print the elliptic curve parameters
80 * -conv_form arg - specifies the point encoding form
81 * -param_enc arg - specifies the parameter encoding
82 */
83
84int MAIN(int, char **);
85
86int MAIN(int argc, char **argv)
87{
88 int ret = 1;
89 EC_KEY *eckey = NULL;
90 const EC_GROUP *group;
91 int i, badops = 0;
92 const EVP_CIPHER *enc = NULL;
93 BIO *in = NULL, *out = NULL;
94 int informat, outformat, text=0, noout=0;
95 int pubin = 0, pubout = 0, param_out = 0;
96 char *infile, *outfile, *prog, *engine;
97 char *passargin = NULL, *passargout = NULL;
98 char *passin = NULL, *passout = NULL;
99 point_conversion_form_t form = POINT_CONVERSION_UNCOMPRESSED;
100 int new_form = 0;
101 int asn1_flag = OPENSSL_EC_NAMED_CURVE;
102 int new_asn1_flag = 0;
103
104 apps_startup();
105
106 if (bio_err == NULL)
107 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
108 BIO_set_fp(bio_err, stderr, BIO_NOCLOSE|BIO_FP_TEXT);
109
110 if (!load_config(bio_err, NULL))
111 goto end;
112
113 engine = NULL;
114 infile = NULL;
115 outfile = NULL;
116 informat = FORMAT_PEM;
117 outformat = FORMAT_PEM;
118
119 prog = argv[0];
120 argc--;
121 argv++;
122 while (argc >= 1)
123 {
124 if (strcmp(*argv,"-inform") == 0)
125 {
126 if (--argc < 1) goto bad;
127 informat=str2fmt(*(++argv));
128 }
129 else if (strcmp(*argv,"-outform") == 0)
130 {
131 if (--argc < 1) goto bad;
132 outformat=str2fmt(*(++argv));
133 }
134 else if (strcmp(*argv,"-in") == 0)
135 {
136 if (--argc < 1) goto bad;
137 infile= *(++argv);
138 }
139 else if (strcmp(*argv,"-out") == 0)
140 {
141 if (--argc < 1) goto bad;
142 outfile= *(++argv);
143 }
144 else if (strcmp(*argv,"-passin") == 0)
145 {
146 if (--argc < 1) goto bad;
147 passargin= *(++argv);
148 }
149 else if (strcmp(*argv,"-passout") == 0)
150 {
151 if (--argc < 1) goto bad;
152 passargout= *(++argv);
153 }
154 else if (strcmp(*argv, "-engine") == 0)
155 {
156 if (--argc < 1) goto bad;
157 engine= *(++argv);
158 }
159 else if (strcmp(*argv, "-noout") == 0)
160 noout = 1;
161 else if (strcmp(*argv, "-text") == 0)
162 text = 1;
163 else if (strcmp(*argv, "-conv_form") == 0)
164 {
165 if (--argc < 1)
166 goto bad;
167 ++argv;
168 new_form = 1;
169 if (strcmp(*argv, "compressed") == 0)
170 form = POINT_CONVERSION_COMPRESSED;
171 else if (strcmp(*argv, "uncompressed") == 0)
172 form = POINT_CONVERSION_UNCOMPRESSED;
173 else if (strcmp(*argv, "hybrid") == 0)
174 form = POINT_CONVERSION_HYBRID;
175 else
176 goto bad;
177 }
178 else if (strcmp(*argv, "-param_enc") == 0)
179 {
180 if (--argc < 1)
181 goto bad;
182 ++argv;
183 new_asn1_flag = 1;
184 if (strcmp(*argv, "named_curve") == 0)
185 asn1_flag = OPENSSL_EC_NAMED_CURVE;
186 else if (strcmp(*argv, "explicit") == 0)
187 asn1_flag = 0;
188 else
189 goto bad;
190 }
191 else if (strcmp(*argv, "-param_out") == 0)
192 param_out = 1;
193 else if (strcmp(*argv, "-pubin") == 0)
194 pubin=1;
195 else if (strcmp(*argv, "-pubout") == 0)
196 pubout=1;
197 else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL)
198 {
199 BIO_printf(bio_err, "unknown option %s\n", *argv);
200 badops=1;
201 break;
202 }
203 argc--;
204 argv++;
205 }
206
207 if (badops)
208 {
209bad:
210 BIO_printf(bio_err, "%s [options] <infile >outfile\n", prog);
211 BIO_printf(bio_err, "where options are\n");
212 BIO_printf(bio_err, " -inform arg input format - "
213 "DER or PEM\n");
214 BIO_printf(bio_err, " -outform arg output format - "
215 "DER or PEM\n");
216 BIO_printf(bio_err, " -in arg input file\n");
217 BIO_printf(bio_err, " -passin arg input file pass "
218 "phrase source\n");
219 BIO_printf(bio_err, " -out arg output file\n");
220 BIO_printf(bio_err, " -passout arg output file pass "
221 "phrase source\n");
222 BIO_printf(bio_err, " -engine e use engine e, "
223 "possibly a hardware device.\n");
224 BIO_printf(bio_err, " -des encrypt PEM output, "
225 "instead of 'des' every other \n"
226 " cipher "
227 "supported by OpenSSL can be used\n");
228 BIO_printf(bio_err, " -text print the key\n");
229 BIO_printf(bio_err, " -noout don't print key out\n");
230 BIO_printf(bio_err, " -param_out print the elliptic "
231 "curve parameters\n");
232 BIO_printf(bio_err, " -conv_form arg specifies the "
233 "point conversion form \n");
234 BIO_printf(bio_err, " possible values:"
235 " compressed\n");
236 BIO_printf(bio_err, " "
237 " uncompressed (default)\n");
238 BIO_printf(bio_err, " "
239 " hybrid\n");
240 BIO_printf(bio_err, " -param_enc arg specifies the way"
241 " the ec parameters are encoded\n");
242 BIO_printf(bio_err, " in the asn1 der "
243 "encoding\n");
244 BIO_printf(bio_err, " possible values:"
245 " named_curve (default)\n");
246 BIO_printf(bio_err," "
247 "explicit\n");
248 goto end;
249 }
250
251 ERR_load_crypto_strings();
252
253#ifndef OPENSSL_NO_ENGINE
254 setup_engine(bio_err, engine, 0);
255#endif
256
257 if(!app_passwd(bio_err, passargin, passargout, &passin, &passout))
258 {
259 BIO_printf(bio_err, "Error getting passwords\n");
260 goto end;
261 }
262
263 in = BIO_new(BIO_s_file());
264 out = BIO_new(BIO_s_file());
265 if ((in == NULL) || (out == NULL))
266 {
267 ERR_print_errors(bio_err);
268 goto end;
269 }
270
271 if (infile == NULL)
272 BIO_set_fp(in, stdin, BIO_NOCLOSE);
273 else
274 {
275 if (BIO_read_filename(in, infile) <= 0)
276 {
277 perror(infile);
278 goto end;
279 }
280 }
281
282 BIO_printf(bio_err, "read EC key\n");
283 if (informat == FORMAT_ASN1)
284 {
285 if (pubin)
286 eckey = d2i_EC_PUBKEY_bio(in, NULL);
287 else
288 eckey = d2i_ECPrivateKey_bio(in, NULL);
289 }
290 else if (informat == FORMAT_PEM)
291 {
292 if (pubin)
293 eckey = PEM_read_bio_EC_PUBKEY(in, NULL, NULL,
294 NULL);
295 else
296 eckey = PEM_read_bio_ECPrivateKey(in, NULL, NULL,
297 passin);
298 }
299 else
300 {
301 BIO_printf(bio_err, "bad input format specified for key\n");
302 goto end;
303 }
304 if (eckey == NULL)
305 {
306 BIO_printf(bio_err,"unable to load Key\n");
307 ERR_print_errors(bio_err);
308 goto end;
309 }
310
311 if (outfile == NULL)
312 {
313 BIO_set_fp(out, stdout, BIO_NOCLOSE);
314#ifdef OPENSSL_SYS_VMS
315 {
316 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
317 out = BIO_push(tmpbio, out);
318 }
319#endif
320 }
321 else
322 {
323 if (BIO_write_filename(out, outfile) <= 0)
324 {
325 perror(outfile);
326 goto end;
327 }
328 }
329
330 group = EC_KEY_get0_group(eckey);
331
332 if (new_form)
333 EC_KEY_set_conv_form(eckey, form);
334
335 if (new_asn1_flag)
336 EC_KEY_set_asn1_flag(eckey, asn1_flag);
337
338 if (text)
339 if (!EC_KEY_print(out, eckey, 0))
340 {
341 perror(outfile);
342 ERR_print_errors(bio_err);
343 goto end;
344 }
345
346 if (noout)
347 {
348 ret = 0;
349 goto end;
350 }
351
352 BIO_printf(bio_err, "writing EC key\n");
353 if (outformat == FORMAT_ASN1)
354 {
355 if (param_out)
356 i = i2d_ECPKParameters_bio(out, group);
357 else if (pubin || pubout)
358 i = i2d_EC_PUBKEY_bio(out, eckey);
359 else
360 i = i2d_ECPrivateKey_bio(out, eckey);
361 }
362 else if (outformat == FORMAT_PEM)
363 {
364 if (param_out)
365 i = PEM_write_bio_ECPKParameters(out, group);
366 else if (pubin || pubout)
367 i = PEM_write_bio_EC_PUBKEY(out, eckey);
368 else
369 i = PEM_write_bio_ECPrivateKey(out, eckey, enc,
370 NULL, 0, NULL, passout);
371 }
372 else
373 {
374 BIO_printf(bio_err, "bad output format specified for "
375 "outfile\n");
376 goto end;
377 }
378
379 if (!i)
380 {
381 BIO_printf(bio_err, "unable to write private key\n");
382 ERR_print_errors(bio_err);
383 }
384 else
385 ret=0;
386end:
387 if (in)
388 BIO_free(in);
389 if (out)
390 BIO_free_all(out);
391 if (eckey)
392 EC_KEY_free(eckey);
393 if (passin)
394 OPENSSL_free(passin);
395 if (passout)
396 OPENSSL_free(passout);
397 apps_shutdown();
398 OPENSSL_EXIT(ret);
399}
400#else /* !OPENSSL_NO_EC */
401
402# if PEDANTIC
403static void *dummy=&dummy;
404# endif
405
406#endif
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