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pkcs8.c
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1 /* pkcs8.c */
2 /* Written by Dr Stephen N Henson ([email protected]) 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  * [email protected].
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  * ([email protected]). This product includes software written by Tim
55  * Hudson ([email protected]).
56  *
57  */
58 #include <stdio.h>
59 #include <string.h>
60 #include "apps.h"
61 #include <openssl/pem.h>
62 #include <openssl/err.h>
63 #include <openssl/evp.h>
64 #include <openssl/pkcs12.h>
65 
66 #define PROG pkcs8_main
67 
68 int MAIN(int, char **);
69 
70 int MAIN(int argc, char **argv)
71  {
72  ENGINE *e = NULL;
73  char **args, *infile = NULL, *outfile = NULL;
74  char *passargin = NULL, *passargout = NULL;
75  BIO *in = NULL, *out = NULL;
76  int topk8 = 0;
77  int pbe_nid = -1;
78  const EVP_CIPHER *cipher = NULL;
79  int iter = PKCS12_DEFAULT_ITER;
80  int informat, outformat;
81  int p8_broken = PKCS8_OK;
82  int nocrypt = 0;
83  X509_SIG *p8 = NULL;
84  PKCS8_PRIV_KEY_INFO *p8inf = NULL;
85  EVP_PKEY *pkey=NULL;
86  char pass[50], *passin = NULL, *passout = NULL, *p8pass = NULL;
87  int badarg = 0;
88  int ret = 1;
89 #ifndef OPENSSL_NO_ENGINE
90  char *engine=NULL;
91 #endif
92 
93  if (bio_err == NULL) bio_err = BIO_new_fp (stderr, BIO_NOCLOSE);
94 
95  if (!load_config(bio_err, NULL))
96  goto end;
97 
98  informat=FORMAT_PEM;
99  outformat=FORMAT_PEM;
100 
101  ERR_load_crypto_strings();
102  OpenSSL_add_all_algorithms();
103  args = argv + 1;
104  while (!badarg && *args && *args[0] == '-')
105  {
106  if (!strcmp(*args,"-v2"))
107  {
108  if (args[1])
109  {
110  args++;
111  cipher=EVP_get_cipherbyname(*args);
112  if (!cipher)
113  {
114  BIO_printf(bio_err,
115  "Unknown cipher %s\n", *args);
116  badarg = 1;
117  }
118  }
119  else
120  badarg = 1;
121  }
122  else if (!strcmp(*args,"-v1"))
123  {
124  if (args[1])
125  {
126  args++;
127  pbe_nid=OBJ_txt2nid(*args);
128  if (pbe_nid == NID_undef)
129  {
130  BIO_printf(bio_err,
131  "Unknown PBE algorithm %s\n", *args);
132  badarg = 1;
133  }
134  }
135  else
136  badarg = 1;
137  }
138  else if (!strcmp(*args,"-inform"))
139  {
140  if (args[1])
141  {
142  args++;
143  informat=str2fmt(*args);
144  }
145  else badarg = 1;
146  }
147  else if (!strcmp(*args,"-outform"))
148  {
149  if (args[1])
150  {
151  args++;
152  outformat=str2fmt(*args);
153  }
154  else badarg = 1;
155  }
156  else if (!strcmp (*args, "-topk8"))
157  topk8 = 1;
158  else if (!strcmp (*args, "-noiter"))
159  iter = 1;
160  else if (!strcmp (*args, "-nocrypt"))
161  nocrypt = 1;
162  else if (!strcmp (*args, "-nooct"))
163  p8_broken = PKCS8_NO_OCTET;
164  else if (!strcmp (*args, "-nsdb"))
165  p8_broken = PKCS8_NS_DB;
166  else if (!strcmp (*args, "-embed"))
167  p8_broken = PKCS8_EMBEDDED_PARAM;
168  else if (!strcmp(*args,"-passin"))
169  {
170  if (!args[1]) goto bad;
171  passargin= *(++args);
172  }
173  else if (!strcmp(*args,"-passout"))
174  {
175  if (!args[1]) goto bad;
176  passargout= *(++args);
177  }
178 #ifndef OPENSSL_NO_ENGINE
179  else if (strcmp(*args,"-engine") == 0)
180  {
181  if (!args[1]) goto bad;
182  engine= *(++args);
183  }
184 #endif
185  else if (!strcmp (*args, "-in"))
186  {
187  if (args[1])
188  {
189  args++;
190  infile = *args;
191  }
192  else badarg = 1;
193  }
194  else if (!strcmp (*args, "-out"))
195  {
196  if (args[1])
197  {
198  args++;
199  outfile = *args;
200  }
201  else badarg = 1;
202  }
203  else badarg = 1;
204  args++;
205  }
206 
207  if (badarg)
208  {
209  bad:
210  BIO_printf(bio_err, "Usage pkcs8 [options]\n");
211  BIO_printf(bio_err, "where options are\n");
212  BIO_printf(bio_err, "-in file input file\n");
213  BIO_printf(bio_err, "-inform X input format (DER or PEM)\n");
214  BIO_printf(bio_err, "-passin arg input file pass phrase source\n");
215  BIO_printf(bio_err, "-outform X output format (DER or PEM)\n");
216  BIO_printf(bio_err, "-out file output file\n");
217  BIO_printf(bio_err, "-passout arg output file pass phrase source\n");
218  BIO_printf(bio_err, "-topk8 output PKCS8 file\n");
219  BIO_printf(bio_err, "-nooct use (nonstandard) no octet format\n");
220  BIO_printf(bio_err, "-embed use (nonstandard) embedded DSA parameters format\n");
221  BIO_printf(bio_err, "-nsdb use (nonstandard) DSA Netscape DB format\n");
222  BIO_printf(bio_err, "-noiter use 1 as iteration count\n");
223  BIO_printf(bio_err, "-nocrypt use or expect unencrypted private key\n");
224  BIO_printf(bio_err, "-v2 alg use PKCS#5 v2.0 and cipher \"alg\"\n");
225  BIO_printf(bio_err, "-v1 obj use PKCS#5 v1.5 and cipher \"alg\"\n");
226 #ifndef OPENSSL_NO_ENGINE
227  BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n");
228 #endif
229  goto end;
230  }
231 
232 #ifndef OPENSSL_NO_ENGINE
233  e = setup_engine(bio_err, engine, 0);
234 #endif
235 
236  if (!app_passwd(bio_err, passargin, passargout, &passin, &passout))
237  {
238  BIO_printf(bio_err, "Error getting passwords\n");
239  goto end;
240  }
241 
242  if ((pbe_nid == -1) && !cipher)
243  pbe_nid = NID_pbeWithMD5AndDES_CBC;
244 
245  if (infile)
246  {
247  if (!(in = BIO_new_file(infile, "rb")))
248  {
249  BIO_printf(bio_err,
250  "Can't open input file %s\n", infile);
251  goto end;
252  }
253  }
254  else
255  in = BIO_new_fp (stdin, BIO_NOCLOSE);
256 
257  if (outfile)
258  {
259  if (!(out = BIO_new_file (outfile, "wb")))
260  {
261  BIO_printf(bio_err,
262  "Can't open output file %s\n", outfile);
263  goto end;
264  }
265  }
266  else
267  {
268  out = BIO_new_fp (stdout, BIO_NOCLOSE);
269 #ifdef OPENSSL_SYS_VMS
270  {
271  BIO *tmpbio = BIO_new(BIO_f_linebuffer());
272  out = BIO_push(tmpbio, out);
273  }
274 #endif
275  }
276  if (topk8)
277  {
278  pkey = load_key(bio_err, infile, informat, 1,
279  passin, e, "key");
280  if (!pkey)
281  goto end;
282  if (!(p8inf = EVP_PKEY2PKCS8_broken(pkey, p8_broken)))
283  {
284  BIO_printf(bio_err, "Error converting key\n");
285  ERR_print_errors(bio_err);
286  goto end;
287  }
288  if (nocrypt)
289  {
290  if (outformat == FORMAT_PEM)
291  PEM_write_bio_PKCS8_PRIV_KEY_INFO(out, p8inf);
292  else if (outformat == FORMAT_ASN1)
293  i2d_PKCS8_PRIV_KEY_INFO_bio(out, p8inf);
294  else
295  {
296  BIO_printf(bio_err, "Bad format specified for key\n");
297  goto end;
298  }
299  }
300  else
301  {
302  if (passout)
303  p8pass = passout;
304  else
305  {
306  p8pass = pass;
307  if (EVP_read_pw_string(pass, sizeof pass, "Enter Encryption Password:", 1))
308  goto end;
309  }
310  app_RAND_load_file(NULL, bio_err, 0);
311  if (!(p8 = PKCS8_encrypt(pbe_nid, cipher,
312  p8pass, strlen(p8pass),
313  NULL, 0, iter, p8inf)))
314  {
315  BIO_printf(bio_err, "Error encrypting key\n");
316  ERR_print_errors(bio_err);
317  goto end;
318  }
319  app_RAND_write_file(NULL, bio_err);
320  if (outformat == FORMAT_PEM)
321  PEM_write_bio_PKCS8(out, p8);
322  else if (outformat == FORMAT_ASN1)
323  i2d_PKCS8_bio(out, p8);
324  else
325  {
326  BIO_printf(bio_err, "Bad format specified for key\n");
327  goto end;
328  }
329  }
330 
331  ret = 0;
332  goto end;
333  }
334 
335  if (nocrypt)
336  {
337  if (informat == FORMAT_PEM)
338  p8inf = PEM_read_bio_PKCS8_PRIV_KEY_INFO(in,NULL,NULL, NULL);
339  else if (informat == FORMAT_ASN1)
340  p8inf = d2i_PKCS8_PRIV_KEY_INFO_bio(in, NULL);
341  else
342  {
343  BIO_printf(bio_err, "Bad format specified for key\n");
344  goto end;
345  }
346  }
347  else
348  {
349  if (informat == FORMAT_PEM)
350  p8 = PEM_read_bio_PKCS8(in, NULL, NULL, NULL);
351  else if (informat == FORMAT_ASN1)
352  p8 = d2i_PKCS8_bio(in, NULL);
353  else
354  {
355  BIO_printf(bio_err, "Bad format specified for key\n");
356  goto end;
357  }
358 
359  if (!p8)
360  {
361  BIO_printf (bio_err, "Error reading key\n");
362  ERR_print_errors(bio_err);
363  goto end;
364  }
365  if (passin)
366  p8pass = passin;
367  else
368  {
369  p8pass = pass;
370  EVP_read_pw_string(pass, sizeof pass, "Enter Password:", 0);
371  }
372  p8inf = PKCS8_decrypt(p8, p8pass, strlen(p8pass));
373  }
374 
375  if (!p8inf)
376  {
377  BIO_printf(bio_err, "Error decrypting key\n");
378  ERR_print_errors(bio_err);
379  goto end;
380  }
381 
382  if (!(pkey = EVP_PKCS82PKEY(p8inf)))
383  {
384  BIO_printf(bio_err, "Error converting key\n");
385  ERR_print_errors(bio_err);
386  goto end;
387  }
388 
389  if (p8inf->broken)
390  {
391  BIO_printf(bio_err, "Warning: broken key encoding: ");
392  switch (p8inf->broken)
393  {
394  case PKCS8_NO_OCTET:
395  BIO_printf(bio_err, "No Octet String in PrivateKey\n");
396  break;
397 
398  case PKCS8_EMBEDDED_PARAM:
399  BIO_printf(bio_err, "DSA parameters included in PrivateKey\n");
400  break;
401 
402  case PKCS8_NS_DB:
403  BIO_printf(bio_err, "DSA public key include in PrivateKey\n");
404  break;
405 
406  case PKCS8_NEG_PRIVKEY:
407  BIO_printf(bio_err, "DSA private key value is negative\n");
408  break;
409 
410  default:
411  BIO_printf(bio_err, "Unknown broken type\n");
412  break;
413  }
414  }
415 
416  if (outformat == FORMAT_PEM)
417  PEM_write_bio_PrivateKey(out, pkey, NULL, NULL, 0, NULL, passout);
418  else if (outformat == FORMAT_ASN1)
419  i2d_PrivateKey_bio(out, pkey);
420  else
421  {
422  BIO_printf(bio_err, "Bad format specified for key\n");
423  goto end;
424  }
425  ret = 0;
426 
427  end:
428  X509_SIG_free(p8);
429  PKCS8_PRIV_KEY_INFO_free(p8inf);
430  EVP_PKEY_free(pkey);
431  BIO_free_all(out);
432  BIO_free(in);
433  if (passin)
434  OPENSSL_free(passin);
435  if (passout)
436  OPENSSL_free(passout);
437 
438  return ret;
439  }
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