1 /* $OpenBSD: pkcs8.c,v 1.14 2019/07/14 03:30:46 guenther Exp $ */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project 1999-2004.
4 */
5 /* ====================================================================
6 * Copyright (c) 1999 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 * licensing@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 <stdio.h>
60 #include <string.h>
61
62 #include "apps.h"
63 #include "progs.h"
64
65 #include <openssl/err.h>
66 #include <openssl/evp.h>
67 #include <openssl/pem.h>
68 #include <openssl/pkcs12.h>
69
70 static struct {
71 const EVP_CIPHER *cipher;
72 char *infile;
73 int informat;
74 int iter;
75 int nocrypt;
76 char *outfile;
77 int outformat;
78 char *passargin;
79 char *passargout;
80 int pbe_nid;
81 int topk8;
82 } pkcs8_config;
83
84 static int
pkcs8_opt_v1(char * arg)85 pkcs8_opt_v1(char *arg)
86 {
87 if ((pkcs8_config.pbe_nid = OBJ_txt2nid(arg)) == NID_undef) {
88 fprintf(stderr, "Unknown PBE algorithm '%s'\n", arg);
89 return (1);
90 }
91
92 return (0);
93 }
94
95 static int
pkcs8_opt_v2(char * arg)96 pkcs8_opt_v2(char *arg)
97 {
98 if ((pkcs8_config.cipher = EVP_get_cipherbyname(arg)) == NULL) {
99 fprintf(stderr, "Unknown cipher '%s'\n", arg);
100 return (1);
101 }
102
103 return (0);
104 }
105
106 static const struct option pkcs8_options[] = {
107 {
108 .name = "in",
109 .argname = "file",
110 .desc = "Input file (default stdin)",
111 .type = OPTION_ARG,
112 .opt.arg = &pkcs8_config.infile,
113 },
114 {
115 .name = "inform",
116 .argname = "der | pem",
117 .desc = "Input format (default PEM)",
118 .type = OPTION_ARG_FORMAT,
119 .opt.value = &pkcs8_config.informat,
120 },
121 {
122 .name = "nocrypt",
123 .desc = "Use or expect unencrypted private key",
124 .type = OPTION_FLAG,
125 .opt.flag = &pkcs8_config.nocrypt,
126 },
127 {
128 .name = "noiter",
129 .desc = "Use 1 as iteration count",
130 .type = OPTION_VALUE,
131 .value = 1,
132 .opt.value = &pkcs8_config.iter,
133 },
134 {
135 .name = "out",
136 .argname = "file",
137 .desc = "Output file (default stdout)",
138 .type = OPTION_ARG,
139 .opt.arg = &pkcs8_config.outfile,
140 },
141 {
142 .name = "outform",
143 .argname = "der | pem",
144 .desc = "Output format (default PEM)",
145 .type = OPTION_ARG_FORMAT,
146 .opt.value = &pkcs8_config.outformat,
147 },
148 {
149 .name = "passin",
150 .argname = "source",
151 .desc = "Input file passphrase source",
152 .type = OPTION_ARG,
153 .opt.arg = &pkcs8_config.passargin,
154 },
155 {
156 .name = "passout",
157 .argname = "source",
158 .desc = "Output file passphrase source",
159 .type = OPTION_ARG,
160 .opt.arg = &pkcs8_config.passargout,
161 },
162 {
163 .name = "topk8",
164 .desc = "Read traditional format key and write PKCS#8 format"
165 " key",
166 .type = OPTION_FLAG,
167 .opt.flag = &pkcs8_config.topk8,
168 },
169 {
170 .name = "v1",
171 .argname = "algorithm",
172 .desc = "Use PKCS#5 v1.5 or PKCS#12 with given algorithm",
173 .type = OPTION_ARG_FUNC,
174 .opt.argfunc = pkcs8_opt_v1,
175 },
176 {
177 .name = "v2",
178 .argname = "cipher",
179 .desc = "Use PKCS#5 v2.0 with given cipher",
180 .type = OPTION_ARG_FUNC,
181 .opt.argfunc = pkcs8_opt_v2,
182 },
183 { NULL },
184 };
185
186 static void
pkcs8_usage()187 pkcs8_usage()
188 {
189 fprintf(stderr, "usage: pkcs8 [-in file] [inform der | pem] "
190 "[-nocrypt] [-noiter]\n"
191 " [-out file] [-outform der | pem] [-passin arg]\n"
192 " [-passout arg] [-topk8] [-v1 alg] [-v2 alg]\n\n");
193 options_usage(pkcs8_options);
194 }
195
196 int
pkcs8_main(int argc,char ** argv)197 pkcs8_main(int argc, char **argv)
198 {
199 BIO *in = NULL, *out = NULL;
200 X509_SIG *p8 = NULL;
201 PKCS8_PRIV_KEY_INFO *p8inf = NULL;
202 EVP_PKEY *pkey = NULL;
203 char pass[50], *passin = NULL, *passout = NULL, *p8pass = NULL;
204 int ret = 1;
205
206 if (single_execution) {
207 if (pledge("stdio cpath wpath rpath tty", NULL) == -1) {
208 perror("pledge");
209 exit(1);
210 }
211 }
212
213 memset(&pkcs8_config, 0, sizeof(pkcs8_config));
214
215 pkcs8_config.iter = PKCS12_DEFAULT_ITER;
216 pkcs8_config.informat = FORMAT_PEM;
217 pkcs8_config.outformat = FORMAT_PEM;
218 pkcs8_config.pbe_nid = -1;
219
220 if (options_parse(argc, argv, pkcs8_options, NULL, NULL) != 0) {
221 pkcs8_usage();
222 return (1);
223 }
224
225 if (!app_passwd(bio_err, pkcs8_config.passargin,
226 pkcs8_config.passargout, &passin, &passout)) {
227 BIO_printf(bio_err, "Error getting passwords\n");
228 goto end;
229 }
230 if ((pkcs8_config.pbe_nid == -1) && !pkcs8_config.cipher)
231 pkcs8_config.pbe_nid = NID_pbeWithMD5AndDES_CBC;
232
233 if (pkcs8_config.infile) {
234 if (!(in = BIO_new_file(pkcs8_config.infile, "rb"))) {
235 BIO_printf(bio_err,
236 "Can't open input file '%s'\n",
237 pkcs8_config.infile);
238 goto end;
239 }
240 } else
241 in = BIO_new_fp(stdin, BIO_NOCLOSE);
242
243 if (pkcs8_config.outfile) {
244 if (!(out = BIO_new_file(pkcs8_config.outfile, "wb"))) {
245 BIO_printf(bio_err, "Can't open output file '%s'\n",
246 pkcs8_config.outfile);
247 goto end;
248 }
249 } else {
250 out = BIO_new_fp(stdout, BIO_NOCLOSE);
251 }
252 if (pkcs8_config.topk8) {
253 pkey = load_key(bio_err, pkcs8_config.infile,
254 pkcs8_config.informat, 1, passin, "key");
255 if (!pkey)
256 goto end;
257 if (!(p8inf = EVP_PKEY2PKCS8(pkey))) {
258 BIO_printf(bio_err, "Error converting key\n");
259 ERR_print_errors(bio_err);
260 goto end;
261 }
262 if (pkcs8_config.nocrypt) {
263 if (pkcs8_config.outformat == FORMAT_PEM)
264 PEM_write_bio_PKCS8_PRIV_KEY_INFO(out, p8inf);
265 else if (pkcs8_config.outformat == FORMAT_ASN1)
266 i2d_PKCS8_PRIV_KEY_INFO_bio(out, p8inf);
267 else {
268 BIO_printf(bio_err,
269 "Bad format specified for key\n");
270 goto end;
271 }
272 } else {
273 if (passout)
274 p8pass = passout;
275 else {
276 p8pass = pass;
277 if (EVP_read_pw_string(pass, sizeof pass,
278 "Enter Encryption Password:", 1))
279 goto end;
280 }
281 if (!(p8 = PKCS8_encrypt(pkcs8_config.pbe_nid,
282 pkcs8_config.cipher, p8pass, strlen(p8pass),
283 NULL, 0, pkcs8_config.iter, p8inf))) {
284 BIO_printf(bio_err, "Error encrypting key\n");
285 ERR_print_errors(bio_err);
286 goto end;
287 }
288 if (pkcs8_config.outformat == FORMAT_PEM)
289 PEM_write_bio_PKCS8(out, p8);
290 else if (pkcs8_config.outformat == FORMAT_ASN1)
291 i2d_PKCS8_bio(out, p8);
292 else {
293 BIO_printf(bio_err,
294 "Bad format specified for key\n");
295 goto end;
296 }
297 }
298
299 ret = 0;
300 goto end;
301 }
302 if (pkcs8_config.nocrypt) {
303 if (pkcs8_config.informat == FORMAT_PEM)
304 p8inf = PEM_read_bio_PKCS8_PRIV_KEY_INFO(in, NULL,
305 NULL, NULL);
306 else if (pkcs8_config.informat == FORMAT_ASN1)
307 p8inf = d2i_PKCS8_PRIV_KEY_INFO_bio(in, NULL);
308 else {
309 BIO_printf(bio_err, "Bad format specified for key\n");
310 goto end;
311 }
312 } else {
313 if (pkcs8_config.informat == FORMAT_PEM)
314 p8 = PEM_read_bio_PKCS8(in, NULL, NULL, NULL);
315 else if (pkcs8_config.informat == FORMAT_ASN1)
316 p8 = d2i_PKCS8_bio(in, NULL);
317 else {
318 BIO_printf(bio_err, "Bad format specified for key\n");
319 goto end;
320 }
321
322 if (!p8) {
323 BIO_printf(bio_err, "Error reading key\n");
324 ERR_print_errors(bio_err);
325 goto end;
326 }
327 if (passin)
328 p8pass = passin;
329 else {
330 p8pass = pass;
331 EVP_read_pw_string(pass, sizeof pass,
332 "Enter Password:", 0);
333 }
334 p8inf = PKCS8_decrypt(p8, p8pass, strlen(p8pass));
335 }
336
337 if (!p8inf) {
338 BIO_printf(bio_err, "Error decrypting key\n");
339 ERR_print_errors(bio_err);
340 goto end;
341 }
342 if (!(pkey = EVP_PKCS82PKEY(p8inf))) {
343 BIO_printf(bio_err, "Error converting key\n");
344 ERR_print_errors(bio_err);
345 goto end;
346 }
347 if (pkcs8_config.outformat == FORMAT_PEM)
348 PEM_write_bio_PrivateKey(out, pkey, NULL, NULL, 0, NULL,
349 passout);
350 else if (pkcs8_config.outformat == FORMAT_ASN1)
351 i2d_PrivateKey_bio(out, pkey);
352 else {
353 BIO_printf(bio_err, "Bad format specified for key\n");
354 goto end;
355 }
356 ret = 0;
357
358 end:
359 X509_SIG_free(p8);
360 PKCS8_PRIV_KEY_INFO_free(p8inf);
361 EVP_PKEY_free(pkey);
362 BIO_free_all(out);
363 BIO_free(in);
364 free(passin);
365 free(passout);
366
367 return ret;
368 }
369