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MFC if_ethersubr.c rev1.77:
[dragonfly.git] / crypto / openssl-0.9 / apps / ec.c
blobc63437fe2acd566b3b1766aad63225cdb1f57325
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
84 int MAIN(int, char **);
85
86 int MAIN(int argc, char **argv)
87 {
88 #ifndef OPENSSL_NO_ENGINE
89 ENGINE *e = NULL;
90 #endif
91 int ret = 1;
92 EC_KEY *eckey = NULL;
93 const EC_GROUP *group;
94 int i, badops = 0;
95 const EVP_CIPHER *enc = NULL;
96 BIO *in = NULL, *out = NULL;
97 int informat, outformat, text=0, noout=0;
98 int pubin = 0, pubout = 0, param_out = 0;
99 char *infile, *outfile, *prog, *engine;
100 char *passargin = NULL, *passargout = NULL;
101 char *passin = NULL, *passout = NULL;
102 point_conversion_form_t form = POINT_CONVERSION_UNCOMPRESSED;
103 int new_form = 0;
104 int asn1_flag = OPENSSL_EC_NAMED_CURVE;
105 int new_asn1_flag = 0;
106
107 apps_startup();
108
109 if (bio_err == NULL)
110 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
111 BIO_set_fp(bio_err, stderr, BIO_NOCLOSE|BIO_FP_TEXT);
112
113 if (!load_config(bio_err, NULL))
114 goto end;
115
116 engine = NULL;
117 infile = NULL;
118 outfile = NULL;
119 informat = FORMAT_PEM;
120 outformat = FORMAT_PEM;
121
122 prog = argv[0];
123 argc--;
124 argv++;
125 while (argc >= 1)
126 {
127 if (strcmp(*argv,"-inform") == 0)
128 {
129 if (--argc < 1) goto bad;
130 informat=str2fmt(*(++argv));
131 }
132 else if (strcmp(*argv,"-outform") == 0)
133 {
134 if (--argc < 1) goto bad;
135 outformat=str2fmt(*(++argv));
136 }
137 else if (strcmp(*argv,"-in") == 0)
138 {
139 if (--argc < 1) goto bad;
140 infile= *(++argv);
141 }
142 else if (strcmp(*argv,"-out") == 0)
143 {
144 if (--argc < 1) goto bad;
145 outfile= *(++argv);
146 }
147 else if (strcmp(*argv,"-passin") == 0)
148 {
149 if (--argc < 1) goto bad;
150 passargin= *(++argv);
151 }
152 else if (strcmp(*argv,"-passout") == 0)
153 {
154 if (--argc < 1) goto bad;
155 passargout= *(++argv);
156 }
157 else if (strcmp(*argv, "-engine") == 0)
158 {
159 if (--argc < 1) goto bad;
160 engine= *(++argv);
161 }
162 else if (strcmp(*argv, "-noout") == 0)
163 noout = 1;
164 else if (strcmp(*argv, "-text") == 0)
165 text = 1;
166 else if (strcmp(*argv, "-conv_form") == 0)
167 {
168 if (--argc < 1)
169 goto bad;
170 ++argv;
171 new_form = 1;
172 if (strcmp(*argv, "compressed") == 0)
173 form = POINT_CONVERSION_COMPRESSED;
174 else if (strcmp(*argv, "uncompressed") == 0)
175 form = POINT_CONVERSION_UNCOMPRESSED;
176 else if (strcmp(*argv, "hybrid") == 0)
177 form = POINT_CONVERSION_HYBRID;
178 else
179 goto bad;
180 }
181 else if (strcmp(*argv, "-param_enc") == 0)
182 {
183 if (--argc < 1)
184 goto bad;
185 ++argv;
186 new_asn1_flag = 1;
187 if (strcmp(*argv, "named_curve") == 0)
188 asn1_flag = OPENSSL_EC_NAMED_CURVE;
189 else if (strcmp(*argv, "explicit") == 0)
190 asn1_flag = 0;
191 else
192 goto bad;
193 }
194 else if (strcmp(*argv, "-param_out") == 0)
195 param_out = 1;
196 else if (strcmp(*argv, "-pubin") == 0)
197 pubin=1;
198 else if (strcmp(*argv, "-pubout") == 0)
199 pubout=1;
200 else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL)
201 {
202 BIO_printf(bio_err, "unknown option %s\n", *argv);
203 badops=1;
204 break;
205 }
206 argc--;
207 argv++;
208 }
209
210 if (badops)
211 {
212 bad:
213 BIO_printf(bio_err, "%s [options] <infile >outfile\n", prog);
214 BIO_printf(bio_err, "where options are\n");
215 BIO_printf(bio_err, " -inform arg input format - "
216 "DER or PEM\n");
217 BIO_printf(bio_err, " -outform arg output format - "
218 "DER or PEM\n");
219 BIO_printf(bio_err, " -in arg input file\n");
220 BIO_printf(bio_err, " -passin arg input file pass "
221 "phrase source\n");
222 BIO_printf(bio_err, " -out arg output file\n");
223 BIO_printf(bio_err, " -passout arg output file pass "
224 "phrase source\n");
225 BIO_printf(bio_err, " -engine e use engine e, "
226 "possibly a hardware device.\n");
227 BIO_printf(bio_err, " -des encrypt PEM output, "
228 "instead of 'des' every other \n"
229 " cipher "
230 "supported by OpenSSL can be used\n");
231 BIO_printf(bio_err, " -text print the key\n");
232 BIO_printf(bio_err, " -noout don't print key out\n");
233 BIO_printf(bio_err, " -param_out print the elliptic "
234 "curve parameters\n");
235 BIO_printf(bio_err, " -conv_form arg specifies the "
236 "point conversion form \n");
237 BIO_printf(bio_err, " possible values:"
238 " compressed\n");
239 BIO_printf(bio_err, " "
240 " uncompressed (default)\n");
241 BIO_printf(bio_err, " "
242 " hybrid\n");
243 BIO_printf(bio_err, " -param_enc arg specifies the way"
244 " the ec parameters are encoded\n");
245 BIO_printf(bio_err, " in the asn1 der "
246 "encoding\n");
247 BIO_printf(bio_err, " possilbe values:"
248 " named_curve (default)\n");
249 BIO_printf(bio_err," "
250 "explicit\n");
251 goto end;
252 }
253
254 ERR_load_crypto_strings();
255
256 #ifndef OPENSSL_NO_ENGINE
257 e = setup_engine(bio_err, engine, 0);
258 #endif
259
260 if(!app_passwd(bio_err, passargin, passargout, &passin, &passout))
261 {
262 BIO_printf(bio_err, "Error getting passwords\n");
263 goto end;
264 }
265
266 in = BIO_new(BIO_s_file());
267 out = BIO_new(BIO_s_file());
268 if ((in == NULL) || (out == NULL))
269 {
270 ERR_print_errors(bio_err);
271 goto end;
272 }
273
274 if (infile == NULL)
275 BIO_set_fp(in, stdin, BIO_NOCLOSE);
276 else
277 {
278 if (BIO_read_filename(in, infile) <= 0)
279 {
280 perror(infile);
281 goto end;
282 }
283 }
284
285 BIO_printf(bio_err, "read EC key\n");
286 if (informat == FORMAT_ASN1)
287 {
288 if (pubin)
289 eckey = d2i_EC_PUBKEY_bio(in, NULL);
290 else
291 eckey = d2i_ECPrivateKey_bio(in, NULL);
292 }
293 else if (informat == FORMAT_PEM)
294 {
295 if (pubin)
296 eckey = PEM_read_bio_EC_PUBKEY(in, NULL, NULL,
297 NULL);
298 else
299 eckey = PEM_read_bio_ECPrivateKey(in, NULL, NULL,
300 passin);
301 }
302 else
303 {
304 BIO_printf(bio_err, "bad input format specified for key\n");
305 goto end;
306 }
307 if (eckey == NULL)
308 {
309 BIO_printf(bio_err,"unable to load Key\n");
310 ERR_print_errors(bio_err);
311 goto end;
312 }
313
314 if (outfile == NULL)
315 {
316 BIO_set_fp(out, stdout, BIO_NOCLOSE);
317 #ifdef OPENSSL_SYS_VMS
318 {
319 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
320 out = BIO_push(tmpbio, out);
321 }
322 #endif
323 }
324 else
325 {
326 if (BIO_write_filename(out, outfile) <= 0)
327 {
328 perror(outfile);
329 goto end;
330 }
331 }
332
333 group = EC_KEY_get0_group(eckey);
334
335 if (new_form)
336 EC_KEY_set_conv_form(eckey, form);
337
338 if (new_asn1_flag)
339 EC_KEY_set_asn1_flag(eckey, asn1_flag);
340
341 if (text)
342 if (!EC_KEY_print(out, eckey, 0))
343 {
344 perror(outfile);
345 ERR_print_errors(bio_err);
346 goto end;
347 }
348
349 if (noout)
350 {
351 ret = 0;
352 goto end;
353 }
354
355 BIO_printf(bio_err, "writing EC key\n");
356 if (outformat == FORMAT_ASN1)
357 {
358 if (param_out)
359 i = i2d_ECPKParameters_bio(out, group);
360 else if (pubin || pubout)
361 i = i2d_EC_PUBKEY_bio(out, eckey);
362 else
363 i = i2d_ECPrivateKey_bio(out, eckey);
364 }
365 else if (outformat == FORMAT_PEM)
366 {
367 if (param_out)
368 i = PEM_write_bio_ECPKParameters(out, group);
369 else if (pubin || pubout)
370 i = PEM_write_bio_EC_PUBKEY(out, eckey);
371 else
372 i = PEM_write_bio_ECPrivateKey(out, eckey, enc,
373 NULL, 0, NULL, passout);
374 }
375 else
376 {
377 BIO_printf(bio_err, "bad output format specified for "
378 "outfile\n");
379 goto end;
380 }
381
382 if (!i)
383 {
384 BIO_printf(bio_err, "unable to write private key\n");
385 ERR_print_errors(bio_err);
386 }
387 else
388 ret=0;
389 end:
390 if (in)
391 BIO_free(in);
392 if (out)
393 BIO_free_all(out);
394 if (eckey)
395 EC_KEY_free(eckey);
396 if (passin)
397 OPENSSL_free(passin);
398 if (passout)
399 OPENSSL_free(passout);
400 apps_shutdown();
401 OPENSSL_EXIT(ret);
402 }
403 #endif
DragonFly BSD