1 /*
2 * Copyright 1999-2018 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10 #include <stdio.h>
11 #include <stdlib.h>
12 #include <string.h>
13 #include "apps.h"
14 #include "progs.h"
15 #include <openssl/pem.h>
16 #include <openssl/err.h>
17 #include <openssl/evp.h>
18 #include <openssl/pkcs12.h>
19
20 typedef enum OPTION_choice {
21 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
22 OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_IN, OPT_OUT,
23 OPT_TOPK8, OPT_NOITER, OPT_NOCRYPT,
24 #ifndef OPENSSL_NO_SCRYPT
25 OPT_SCRYPT, OPT_SCRYPT_N, OPT_SCRYPT_R, OPT_SCRYPT_P,
26 #endif
27 OPT_V2, OPT_V1, OPT_V2PRF, OPT_ITER, OPT_PASSIN, OPT_PASSOUT,
28 OPT_TRADITIONAL,
29 OPT_R_ENUM
30 } OPTION_CHOICE;
31
32 const OPTIONS pkcs8_options[] = {
33 {"help", OPT_HELP, '-', "Display this summary"},
34 {"inform", OPT_INFORM, 'F', "Input format (DER or PEM)"},
35 {"outform", OPT_OUTFORM, 'F', "Output format (DER or PEM)"},
36 {"in", OPT_IN, '<', "Input file"},
37 {"out", OPT_OUT, '>', "Output file"},
38 {"topk8", OPT_TOPK8, '-', "Output PKCS8 file"},
39 {"noiter", OPT_NOITER, '-', "Use 1 as iteration count"},
40 {"nocrypt", OPT_NOCRYPT, '-', "Use or expect unencrypted private key"},
41 OPT_R_OPTIONS,
42 {"v2", OPT_V2, 's', "Use PKCS#5 v2.0 and cipher"},
43 {"v1", OPT_V1, 's', "Use PKCS#5 v1.5 and cipher"},
44 {"v2prf", OPT_V2PRF, 's', "Set the PRF algorithm to use with PKCS#5 v2.0"},
45 {"iter", OPT_ITER, 'p', "Specify the iteration count"},
46 {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
47 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
48 {"traditional", OPT_TRADITIONAL, '-', "use traditional format private key"},
49 #ifndef OPENSSL_NO_ENGINE
50 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
51 #endif
52 #ifndef OPENSSL_NO_SCRYPT
53 {"scrypt", OPT_SCRYPT, '-', "Use scrypt algorithm"},
54 {"scrypt_N", OPT_SCRYPT_N, 's', "Set scrypt N parameter"},
55 {"scrypt_r", OPT_SCRYPT_R, 's', "Set scrypt r parameter"},
56 {"scrypt_p", OPT_SCRYPT_P, 's', "Set scrypt p parameter"},
57 #endif
58 {NULL}
59 };
60
pkcs8_main(int argc,char ** argv)61 int pkcs8_main(int argc, char **argv)
62 {
63 BIO *in = NULL, *out = NULL;
64 ENGINE *e = NULL;
65 EVP_PKEY *pkey = NULL;
66 PKCS8_PRIV_KEY_INFO *p8inf = NULL;
67 X509_SIG *p8 = NULL;
68 const EVP_CIPHER *cipher = NULL;
69 char *infile = NULL, *outfile = NULL;
70 char *passinarg = NULL, *passoutarg = NULL, *prog;
71 #ifndef OPENSSL_NO_UI_CONSOLE
72 char pass[APP_PASS_LEN];
73 #endif
74 char *passin = NULL, *passout = NULL, *p8pass = NULL;
75 OPTION_CHOICE o;
76 int nocrypt = 0, ret = 1, iter = PKCS12_DEFAULT_ITER;
77 int informat = FORMAT_PEM, outformat = FORMAT_PEM, topk8 = 0, pbe_nid = -1;
78 int private = 0, traditional = 0;
79 #ifndef OPENSSL_NO_SCRYPT
80 long scrypt_N = 0, scrypt_r = 0, scrypt_p = 0;
81 #endif
82
83 prog = opt_init(argc, argv, pkcs8_options);
84 while ((o = opt_next()) != OPT_EOF) {
85 switch (o) {
86 case OPT_EOF:
87 case OPT_ERR:
88 opthelp:
89 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
90 goto end;
91 case OPT_HELP:
92 opt_help(pkcs8_options);
93 ret = 0;
94 goto end;
95 case OPT_INFORM:
96 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
97 goto opthelp;
98 break;
99 case OPT_IN:
100 infile = opt_arg();
101 break;
102 case OPT_OUTFORM:
103 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
104 goto opthelp;
105 break;
106 case OPT_OUT:
107 outfile = opt_arg();
108 break;
109 case OPT_TOPK8:
110 topk8 = 1;
111 break;
112 case OPT_NOITER:
113 iter = 1;
114 break;
115 case OPT_NOCRYPT:
116 nocrypt = 1;
117 break;
118 case OPT_R_CASES:
119 if (!opt_rand(o))
120 goto end;
121 break;
122 case OPT_TRADITIONAL:
123 traditional = 1;
124 break;
125 case OPT_V2:
126 if (!opt_cipher(opt_arg(), &cipher))
127 goto opthelp;
128 break;
129 case OPT_V1:
130 pbe_nid = OBJ_txt2nid(opt_arg());
131 if (pbe_nid == NID_undef) {
132 BIO_printf(bio_err,
133 "%s: Unknown PBE algorithm %s\n", prog, opt_arg());
134 goto opthelp;
135 }
136 break;
137 case OPT_V2PRF:
138 pbe_nid = OBJ_txt2nid(opt_arg());
139 if (!EVP_PBE_find(EVP_PBE_TYPE_PRF, pbe_nid, NULL, NULL, 0)) {
140 BIO_printf(bio_err,
141 "%s: Unknown PRF algorithm %s\n", prog, opt_arg());
142 goto opthelp;
143 }
144 if (cipher == NULL)
145 cipher = EVP_aes_256_cbc();
146 break;
147 case OPT_ITER:
148 if (!opt_int(opt_arg(), &iter))
149 goto opthelp;
150 break;
151 case OPT_PASSIN:
152 passinarg = opt_arg();
153 break;
154 case OPT_PASSOUT:
155 passoutarg = opt_arg();
156 break;
157 case OPT_ENGINE:
158 e = setup_engine(opt_arg(), 0);
159 break;
160 #ifndef OPENSSL_NO_SCRYPT
161 case OPT_SCRYPT:
162 scrypt_N = 16384;
163 scrypt_r = 8;
164 scrypt_p = 1;
165 if (cipher == NULL)
166 cipher = EVP_aes_256_cbc();
167 break;
168 case OPT_SCRYPT_N:
169 if (!opt_long(opt_arg(), &scrypt_N) || scrypt_N <= 0)
170 goto opthelp;
171 break;
172 case OPT_SCRYPT_R:
173 if (!opt_long(opt_arg(), &scrypt_r) || scrypt_r <= 0)
174 goto opthelp;
175 break;
176 case OPT_SCRYPT_P:
177 if (!opt_long(opt_arg(), &scrypt_p) || scrypt_p <= 0)
178 goto opthelp;
179 break;
180 #endif
181 }
182 }
183 argc = opt_num_rest();
184 if (argc != 0)
185 goto opthelp;
186
187 private = 1;
188
189 if (!app_passwd(passinarg, passoutarg, &passin, &passout)) {
190 BIO_printf(bio_err, "Error getting passwords\n");
191 goto end;
192 }
193
194 if ((pbe_nid == -1) && cipher == NULL)
195 cipher = EVP_aes_256_cbc();
196
197 in = bio_open_default(infile, 'r', informat);
198 if (in == NULL)
199 goto end;
200 out = bio_open_owner(outfile, outformat, private);
201 if (out == NULL)
202 goto end;
203
204 if (topk8) {
205 pkey = load_key(infile, informat, 1, passin, e, "key");
206 if (pkey == NULL)
207 goto end;
208 if ((p8inf = EVP_PKEY2PKCS8(pkey)) == NULL) {
209 BIO_printf(bio_err, "Error converting key\n");
210 ERR_print_errors(bio_err);
211 goto end;
212 }
213 if (nocrypt) {
214 assert(private);
215 if (outformat == FORMAT_PEM) {
216 PEM_write_bio_PKCS8_PRIV_KEY_INFO(out, p8inf);
217 } else if (outformat == FORMAT_ASN1) {
218 i2d_PKCS8_PRIV_KEY_INFO_bio(out, p8inf);
219 } else {
220 BIO_printf(bio_err, "Bad format specified for key\n");
221 goto end;
222 }
223 } else {
224 X509_ALGOR *pbe;
225 if (cipher) {
226 #ifndef OPENSSL_NO_SCRYPT
227 if (scrypt_N && scrypt_r && scrypt_p)
228 pbe = PKCS5_pbe2_set_scrypt(cipher, NULL, 0, NULL,
229 scrypt_N, scrypt_r, scrypt_p);
230 else
231 #endif
232 pbe = PKCS5_pbe2_set_iv(cipher, iter, NULL, 0, NULL,
233 pbe_nid);
234 } else {
235 pbe = PKCS5_pbe_set(pbe_nid, iter, NULL, 0);
236 }
237 if (pbe == NULL) {
238 BIO_printf(bio_err, "Error setting PBE algorithm\n");
239 ERR_print_errors(bio_err);
240 goto end;
241 }
242 if (passout != NULL) {
243 p8pass = passout;
244 } else if (1) {
245 /* To avoid bit rot */
246 #ifndef OPENSSL_NO_UI_CONSOLE
247 p8pass = pass;
248 if (EVP_read_pw_string
249 (pass, sizeof(pass), "Enter Encryption Password:", 1)) {
250 X509_ALGOR_free(pbe);
251 goto end;
252 }
253 } else {
254 #endif
255 BIO_printf(bio_err, "Password required\n");
256 goto end;
257 }
258 p8 = PKCS8_set0_pbe(p8pass, strlen(p8pass), p8inf, pbe);
259 if (p8 == NULL) {
260 X509_ALGOR_free(pbe);
261 BIO_printf(bio_err, "Error encrypting key\n");
262 ERR_print_errors(bio_err);
263 goto end;
264 }
265 assert(private);
266 if (outformat == FORMAT_PEM)
267 PEM_write_bio_PKCS8(out, p8);
268 else if (outformat == FORMAT_ASN1)
269 i2d_PKCS8_bio(out, p8);
270 else {
271 BIO_printf(bio_err, "Bad format specified for key\n");
272 goto end;
273 }
274 }
275
276 ret = 0;
277 goto end;
278 }
279
280 if (nocrypt) {
281 if (informat == FORMAT_PEM) {
282 p8inf = PEM_read_bio_PKCS8_PRIV_KEY_INFO(in, NULL, NULL, NULL);
283 } else if (informat == FORMAT_ASN1) {
284 p8inf = d2i_PKCS8_PRIV_KEY_INFO_bio(in, NULL);
285 } else {
286 BIO_printf(bio_err, "Bad format specified for key\n");
287 goto end;
288 }
289 } else {
290 if (informat == FORMAT_PEM) {
291 p8 = PEM_read_bio_PKCS8(in, NULL, NULL, NULL);
292 } else if (informat == FORMAT_ASN1) {
293 p8 = d2i_PKCS8_bio(in, NULL);
294 } else {
295 BIO_printf(bio_err, "Bad format specified for key\n");
296 goto end;
297 }
298
299 if (p8 == NULL) {
300 BIO_printf(bio_err, "Error reading key\n");
301 ERR_print_errors(bio_err);
302 goto end;
303 }
304 if (passin != NULL) {
305 p8pass = passin;
306 } else if (1) {
307 #ifndef OPENSSL_NO_UI_CONSOLE
308 p8pass = pass;
309 if (EVP_read_pw_string(pass, sizeof(pass), "Enter Password:", 0)) {
310 BIO_printf(bio_err, "Can't read Password\n");
311 goto end;
312 }
313 } else {
314 #endif
315 BIO_printf(bio_err, "Password required\n");
316 goto end;
317 }
318 p8inf = PKCS8_decrypt(p8, p8pass, strlen(p8pass));
319 }
320
321 if (p8inf == NULL) {
322 BIO_printf(bio_err, "Error decrypting key\n");
323 ERR_print_errors(bio_err);
324 goto end;
325 }
326
327 if ((pkey = EVP_PKCS82PKEY(p8inf)) == NULL) {
328 BIO_printf(bio_err, "Error converting key\n");
329 ERR_print_errors(bio_err);
330 goto end;
331 }
332
333 assert(private);
334 if (outformat == FORMAT_PEM) {
335 if (traditional)
336 PEM_write_bio_PrivateKey_traditional(out, pkey, NULL, NULL, 0,
337 NULL, passout);
338 else
339 PEM_write_bio_PrivateKey(out, pkey, NULL, NULL, 0, NULL, passout);
340 } else if (outformat == FORMAT_ASN1) {
341 i2d_PrivateKey_bio(out, pkey);
342 } else {
343 BIO_printf(bio_err, "Bad format specified for key\n");
344 goto end;
345 }
346 ret = 0;
347
348 end:
349 X509_SIG_free(p8);
350 PKCS8_PRIV_KEY_INFO_free(p8inf);
351 EVP_PKEY_free(pkey);
352 release_engine(e);
353 BIO_free_all(out);
354 BIO_free(in);
355 OPENSSL_free(passin);
356 OPENSSL_free(passout);
357
358 return ret;
359 }
360