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d4a8f90c BM |
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 BM |
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 | |
10621efd | 13 | * notice, this list of conditions and the following disclaimer. |
4d94ae00 BM |
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 |
10621efd 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 | |
10621efd MC |
70 | # undef PROG |
71 | # define PROG ec_main | |
4d94ae00 | 72 | |
3e9a08ec TH |
73 | /*- |
74 | * -inform arg - input format - default PEM (one of DER, NET or PEM) | |
eefa6e4e BM |
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 | |
4d94ae00 BM |
83 | */ |
84 | ||
85 | int MAIN(int, char **); | |
86 | ||
87 | int MAIN(int argc, char **argv) | |
88 | { | |
10621efd 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; | |
98 | char *passargin = NULL, *passargout = NULL; | |
99 | char *passin = NULL, *passout = NULL; | |
100 | point_conversion_form_t form = POINT_CONVERSION_UNCOMPRESSED; | |
101 | int new_form = 0; | |
102 | int asn1_flag = OPENSSL_EC_NAMED_CURVE; | |
103 | int new_asn1_flag = 0; | |
4d94ae00 | 104 | |
10621efd | 105 | apps_startup(); |
4d94ae00 | 106 | |
10621efd MC |
107 | if (bio_err == NULL) |
108 | if ((bio_err = BIO_new(BIO_s_file())) != NULL) | |
109 | BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT); | |
4d94ae00 | 110 | |
10621efd MC |
111 | if (!load_config(bio_err, NULL)) |
112 | goto end; | |
3647bee2 | 113 | |
10621efd MC |
114 | engine = NULL; |
115 | infile = NULL; | |
116 | outfile = NULL; | |
117 | informat = FORMAT_PEM; | |
118 | outformat = FORMAT_PEM; | |
4d94ae00 | 119 | |
10621efd MC |
120 | prog = argv[0]; |
121 | argc--; | |
122 | argv++; | |
123 | while (argc >= 1) { | |
124 | if (strcmp(*argv, "-inform") == 0) { | |
125 | if (--argc < 1) | |
126 | goto bad; | |
127 | informat = str2fmt(*(++argv)); | |
128 | } else if (strcmp(*argv, "-outform") == 0) { | |
129 | if (--argc < 1) | |
130 | goto bad; | |
131 | outformat = str2fmt(*(++argv)); | |
132 | } else if (strcmp(*argv, "-in") == 0) { | |
133 | if (--argc < 1) | |
134 | goto bad; | |
135 | infile = *(++argv); | |
136 | } else if (strcmp(*argv, "-out") == 0) { | |
137 | if (--argc < 1) | |
138 | goto bad; | |
139 | outfile = *(++argv); | |
140 | } else if (strcmp(*argv, "-passin") == 0) { | |
141 | if (--argc < 1) | |
142 | goto bad; | |
143 | passargin = *(++argv); | |
144 | } else if (strcmp(*argv, "-passout") == 0) { | |
145 | if (--argc < 1) | |
146 | goto bad; | |
147 | passargout = *(++argv); | |
148 | } else if (strcmp(*argv, "-engine") == 0) { | |
149 | if (--argc < 1) | |
150 | goto bad; | |
151 | engine = *(++argv); | |
152 | } else if (strcmp(*argv, "-noout") == 0) | |
153 | noout = 1; | |
154 | else if (strcmp(*argv, "-text") == 0) | |
155 | text = 1; | |
156 | else if (strcmp(*argv, "-conv_form") == 0) { | |
157 | if (--argc < 1) | |
158 | goto bad; | |
159 | ++argv; | |
160 | new_form = 1; | |
161 | if (strcmp(*argv, "compressed") == 0) | |
162 | form = POINT_CONVERSION_COMPRESSED; | |
163 | else if (strcmp(*argv, "uncompressed") == 0) | |
164 | form = POINT_CONVERSION_UNCOMPRESSED; | |
165 | else if (strcmp(*argv, "hybrid") == 0) | |
166 | form = POINT_CONVERSION_HYBRID; | |
167 | else | |
168 | goto bad; | |
169 | } else if (strcmp(*argv, "-param_enc") == 0) { | |
170 | if (--argc < 1) | |
171 | goto bad; | |
172 | ++argv; | |
173 | new_asn1_flag = 1; | |
174 | if (strcmp(*argv, "named_curve") == 0) | |
175 | asn1_flag = OPENSSL_EC_NAMED_CURVE; | |
176 | else if (strcmp(*argv, "explicit") == 0) | |
177 | asn1_flag = 0; | |
178 | else | |
179 | goto bad; | |
180 | } else if (strcmp(*argv, "-param_out") == 0) | |
181 | param_out = 1; | |
182 | else if (strcmp(*argv, "-pubin") == 0) | |
183 | pubin = 1; | |
184 | else if (strcmp(*argv, "-pubout") == 0) | |
185 | pubout = 1; | |
186 | else if ((enc = EVP_get_cipherbyname(&(argv[0][1]))) == NULL) { | |
187 | BIO_printf(bio_err, "unknown option %s\n", *argv); | |
188 | badops = 1; | |
189 | break; | |
190 | } | |
191 | argc--; | |
192 | argv++; | |
193 | } | |
4d94ae00 | 194 | |
10621efd MC |
195 | if (badops) { |
196 | bad: | |
197 | BIO_printf(bio_err, "%s [options] <infile >outfile\n", prog); | |
198 | BIO_printf(bio_err, "where options are\n"); | |
199 | BIO_printf(bio_err, " -inform arg input format - " | |
200 | "DER or PEM\n"); | |
201 | BIO_printf(bio_err, " -outform arg output format - " | |
202 | "DER or PEM\n"); | |
203 | BIO_printf(bio_err, " -in arg input file\n"); | |
204 | BIO_printf(bio_err, " -passin arg input file pass " | |
205 | "phrase source\n"); | |
206 | BIO_printf(bio_err, " -out arg output file\n"); | |
207 | BIO_printf(bio_err, " -passout arg output file pass " | |
208 | "phrase source\n"); | |
209 | BIO_printf(bio_err, " -engine e use engine e, " | |
210 | "possibly a hardware device.\n"); | |
211 | BIO_printf(bio_err, " -des encrypt PEM output, " | |
212 | "instead of 'des' every other \n" | |
213 | " cipher " | |
214 | "supported by OpenSSL can be used\n"); | |
215 | BIO_printf(bio_err, " -text print the key\n"); | |
216 | BIO_printf(bio_err, " -noout don't print key out\n"); | |
217 | BIO_printf(bio_err, " -param_out print the elliptic " | |
218 | "curve parameters\n"); | |
219 | BIO_printf(bio_err, " -conv_form arg specifies the " | |
220 | "point conversion form \n"); | |
221 | BIO_printf(bio_err, " possible values:" | |
222 | " compressed\n"); | |
223 | BIO_printf(bio_err, " " | |
224 | " uncompressed (default)\n"); | |
225 | BIO_printf(bio_err, " " " hybrid\n"); | |
226 | BIO_printf(bio_err, " -param_enc arg specifies the way" | |
227 | " the ec parameters are encoded\n"); | |
228 | BIO_printf(bio_err, " in the asn1 der " "encoding\n"); | |
229 | BIO_printf(bio_err, " possible values:" | |
230 | " named_curve (default)\n"); | |
231 | BIO_printf(bio_err, " " | |
232 | "explicit\n"); | |
233 | goto end; | |
234 | } | |
4d94ae00 | 235 | |
10621efd | 236 | ERR_load_crypto_strings(); |
4d94ae00 | 237 | |
10621efd MC |
238 | # ifndef OPENSSL_NO_ENGINE |
239 | setup_engine(bio_err, engine, 0); | |
240 | # endif | |
4d94ae00 | 241 | |
10621efd MC |
242 | if (!app_passwd(bio_err, passargin, passargout, &passin, &passout)) { |
243 | BIO_printf(bio_err, "Error getting passwords\n"); | |
244 | goto end; | |
245 | } | |
4d94ae00 | 246 | |
10621efd MC |
247 | in = BIO_new(BIO_s_file()); |
248 | out = BIO_new(BIO_s_file()); | |
249 | if ((in == NULL) || (out == NULL)) { | |
250 | ERR_print_errors(bio_err); | |
251 | goto end; | |
252 | } | |
4d94ae00 | 253 | |
10621efd MC |
254 | if (infile == NULL) |
255 | BIO_set_fp(in, stdin, BIO_NOCLOSE); | |
256 | else { | |
257 | if (BIO_read_filename(in, infile) <= 0) { | |
258 | perror(infile); | |
259 | goto end; | |
260 | } | |
261 | } | |
4d94ae00 | 262 | |
10621efd MC |
263 | BIO_printf(bio_err, "read EC key\n"); |
264 | if (informat == FORMAT_ASN1) { | |
265 | if (pubin) | |
266 | eckey = d2i_EC_PUBKEY_bio(in, NULL); | |
267 | else | |
268 | eckey = d2i_ECPrivateKey_bio(in, NULL); | |
269 | } else if (informat == FORMAT_PEM) { | |
270 | if (pubin) | |
271 | eckey = PEM_read_bio_EC_PUBKEY(in, NULL, NULL, NULL); | |
272 | else | |
273 | eckey = PEM_read_bio_ECPrivateKey(in, NULL, NULL, passin); | |
274 | } else { | |
275 | BIO_printf(bio_err, "bad input format specified for key\n"); | |
276 | goto end; | |
277 | } | |
278 | if (eckey == NULL) { | |
279 | BIO_printf(bio_err, "unable to load Key\n"); | |
280 | ERR_print_errors(bio_err); | |
281 | goto end; | |
282 | } | |
4d94ae00 | 283 | |
10621efd MC |
284 | if (outfile == NULL) { |
285 | BIO_set_fp(out, stdout, BIO_NOCLOSE); | |
286 | # ifdef OPENSSL_SYS_VMS | |
287 | { | |
288 | BIO *tmpbio = BIO_new(BIO_f_linebuffer()); | |
289 | out = BIO_push(tmpbio, out); | |
290 | } | |
291 | # endif | |
292 | } else { | |
293 | if (BIO_write_filename(out, outfile) <= 0) { | |
294 | perror(outfile); | |
295 | goto end; | |
296 | } | |
297 | } | |
4d94ae00 | 298 | |
10621efd | 299 | group = EC_KEY_get0_group(eckey); |
9dd84053 | 300 | |
10621efd MC |
301 | if (new_form) |
302 | EC_KEY_set_conv_form(eckey, form); | |
4d94ae00 | 303 | |
10621efd MC |
304 | if (new_asn1_flag) |
305 | EC_KEY_set_asn1_flag(eckey, asn1_flag); | |
eefa6e4e | 306 | |
10621efd MC |
307 | if (text) |
308 | if (!EC_KEY_print(out, eckey, 0)) { | |
309 | perror(outfile); | |
310 | ERR_print_errors(bio_err); | |
311 | goto end; | |
312 | } | |
4d94ae00 | 313 | |
10621efd MC |
314 | if (noout) { |
315 | ret = 0; | |
316 | goto end; | |
317 | } | |
eefa6e4e | 318 | |
10621efd MC |
319 | BIO_printf(bio_err, "writing EC key\n"); |
320 | if (outformat == FORMAT_ASN1) { | |
321 | if (param_out) | |
322 | i = i2d_ECPKParameters_bio(out, group); | |
323 | else if (pubin || pubout) | |
324 | i = i2d_EC_PUBKEY_bio(out, eckey); | |
325 | else | |
326 | i = i2d_ECPrivateKey_bio(out, eckey); | |
327 | } else if (outformat == FORMAT_PEM) { | |
328 | if (param_out) | |
329 | i = PEM_write_bio_ECPKParameters(out, group); | |
330 | else if (pubin || pubout) | |
331 | i = PEM_write_bio_EC_PUBKEY(out, eckey); | |
332 | else | |
333 | i = PEM_write_bio_ECPrivateKey(out, eckey, enc, | |
334 | NULL, 0, NULL, passout); | |
335 | } else { | |
336 | BIO_printf(bio_err, "bad output format specified for " "outfile\n"); | |
337 | goto end; | |
338 | } | |
eefa6e4e | 339 | |
10621efd MC |
340 | if (!i) { |
341 | BIO_printf(bio_err, "unable to write private key\n"); | |
342 | ERR_print_errors(bio_err); | |
343 | } else | |
344 | ret = 0; | |
345 | end: | |
346 | if (in) | |
347 | BIO_free(in); | |
348 | if (out) | |
349 | BIO_free_all(out); | |
350 | if (eckey) | |
351 | EC_KEY_free(eckey); | |
352 | if (passin) | |
353 | OPENSSL_free(passin); | |
354 | if (passout) | |
355 | OPENSSL_free(passout); | |
356 | apps_shutdown(); | |
357 | OPENSSL_EXIT(ret); | |
4d94ae00 | 358 | } |
10621efd | 359 | #else /* !OPENSSL_NO_EC */ |
fe41d985 DSH |
360 | |
361 | # if PEDANTIC | |
10621efd | 362 | static void *dummy = &dummy; |
fe41d985 DSH |
363 | # endif |
364 | ||
4d94ae00 | 365 | #endif |