minor signed/unsigned warning fixes
[openssl.git] / apps / pkcs8.c
1 /* pkcs8.c */
2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
3  * project 1999.
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 #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;
84         PKCS8_PRIV_KEY_INFO *p8inf;
85         EVP_PKEY *pkey=NULL;
86         char pass[50], *passin = NULL, *passout = NULL, *p8pass = NULL;
87         int badarg = 0;
88 #ifndef OPENSSL_NO_ENGINE
89         char *engine=NULL;
90 #endif
91
92         if (bio_err == NULL) bio_err = BIO_new_fp (stderr, BIO_NOCLOSE);
93
94         if (!load_config(bio_err, NULL))
95                 goto end;
96
97         informat=FORMAT_PEM;
98         outformat=FORMAT_PEM;
99
100         ERR_load_crypto_strings();
101         OpenSSL_add_all_algorithms();
102         args = argv + 1;
103         while (!badarg && *args && *args[0] == '-') {
104                 if (!strcmp(*args,"-v2")) {
105                         if (args[1]) {
106                                 args++;
107                                 cipher=EVP_get_cipherbyname(*args);
108                                 if(!cipher) {
109                                         BIO_printf(bio_err,
110                                                  "Unknown cipher %s\n", *args);
111                                         badarg = 1;
112                                 }
113                         } else badarg = 1;
114                 } else if (!strcmp(*args,"-v1")) {
115                         if (args[1]) {
116                                 args++;
117                                 pbe_nid=OBJ_txt2nid(*args);
118                                 if(pbe_nid == NID_undef) {
119                                         BIO_printf(bio_err,
120                                                  "Unknown PBE algorithm %s\n", *args);
121                                         badarg = 1;
122                                 }
123                         } else badarg = 1;
124                 } else if (!strcmp(*args,"-inform")) {
125                         if (args[1]) {
126                                 args++;
127                                 informat=str2fmt(*args);
128                         } else badarg = 1;
129                 } else if (!strcmp(*args,"-outform")) {
130                         if (args[1]) {
131                                 args++;
132                                 outformat=str2fmt(*args);
133                         } else badarg = 1;
134                 } else if (!strcmp (*args, "-topk8")) topk8 = 1;
135                 else if (!strcmp (*args, "-noiter")) iter = 1;
136                 else if (!strcmp (*args, "-nocrypt")) nocrypt = 1;
137                 else if (!strcmp (*args, "-nooct")) p8_broken = PKCS8_NO_OCTET;
138                 else if (!strcmp (*args, "-nsdb")) p8_broken = PKCS8_NS_DB;
139                 else if (!strcmp (*args, "-embed")) p8_broken = PKCS8_EMBEDDED_PARAM;
140                 else if (!strcmp(*args,"-passin"))
141                         {
142                         if (!args[1]) goto bad;
143                         passargin= *(++args);
144                         }
145                 else if (!strcmp(*args,"-passout"))
146                         {
147                         if (!args[1]) goto bad;
148                         passargout= *(++args);
149                         }
150 #ifndef OPENSSL_NO_ENGINE
151                 else if (strcmp(*args,"-engine") == 0)
152                         {
153                         if (!args[1]) goto bad;
154                         engine= *(++args);
155                         }
156 #endif
157                 else if (!strcmp (*args, "-in")) {
158                         if (args[1]) {
159                                 args++;
160                                 infile = *args;
161                         } else badarg = 1;
162                 } else if (!strcmp (*args, "-out")) {
163                         if (args[1]) {
164                                 args++;
165                                 outfile = *args;
166                         } else badarg = 1;
167                 } else badarg = 1;
168                 args++;
169         }
170
171         if (badarg) {
172                 bad:
173                 BIO_printf(bio_err, "Usage pkcs8 [options]\n");
174                 BIO_printf(bio_err, "where options are\n");
175                 BIO_printf(bio_err, "-in file        input file\n");
176                 BIO_printf(bio_err, "-inform X       input format (DER or PEM)\n");
177                 BIO_printf(bio_err, "-passin arg     input file pass phrase source\n");
178                 BIO_printf(bio_err, "-outform X      output format (DER or PEM)\n");
179                 BIO_printf(bio_err, "-out file       output file\n");
180                 BIO_printf(bio_err, "-passout arg    output file pass phrase source\n");
181                 BIO_printf(bio_err, "-topk8          output PKCS8 file\n");
182                 BIO_printf(bio_err, "-nooct          use (nonstandard) no octet format\n");
183                 BIO_printf(bio_err, "-embed          use (nonstandard) embedded DSA parameters format\n");
184                 BIO_printf(bio_err, "-nsdb           use (nonstandard) DSA Netscape DB format\n");
185                 BIO_printf(bio_err, "-noiter         use 1 as iteration count\n");
186                 BIO_printf(bio_err, "-nocrypt        use or expect unencrypted private key\n");
187                 BIO_printf(bio_err, "-v2 alg         use PKCS#5 v2.0 and cipher \"alg\"\n");
188                 BIO_printf(bio_err, "-v1 obj         use PKCS#5 v1.5 and cipher \"alg\"\n");
189 #ifndef OPENSSL_NO_ENGINE
190                 BIO_printf(bio_err," -engine e       use engine e, possibly a hardware device.\n");
191 #endif
192                 return (1);
193         }
194
195 #ifndef OPENSSL_NO_ENGINE
196         e = setup_engine(bio_err, engine, 0);
197 #endif
198
199         if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) {
200                 BIO_printf(bio_err, "Error getting passwords\n");
201                 return (1);
202         }
203
204         if ((pbe_nid == -1) && !cipher) pbe_nid = NID_pbeWithMD5AndDES_CBC;
205
206         if (infile) {
207                 if (!(in = BIO_new_file(infile, "rb"))) {
208                         BIO_printf(bio_err,
209                                  "Can't open input file %s\n", infile);
210                         return (1);
211                 }
212         } else in = BIO_new_fp (stdin, BIO_NOCLOSE);
213
214         if (outfile) {
215                 if (!(out = BIO_new_file (outfile, "wb"))) {
216                         BIO_printf(bio_err,
217                                  "Can't open output file %s\n", outfile);
218                         return (1);
219                 }
220         } else {
221                 out = BIO_new_fp (stdout, BIO_NOCLOSE);
222 #ifdef OPENSSL_SYS_VMS
223                 {
224                         BIO *tmpbio = BIO_new(BIO_f_linebuffer());
225                         out = BIO_push(tmpbio, out);
226                 }
227 #endif
228         }
229         if (topk8)
230                 {
231                 BIO_free(in); /* Not needed in this section */
232                 pkey = load_key(bio_err, infile, informat, 1,
233                         passin, e, "key");
234                 if (!pkey) {
235                         BIO_free_all(out);
236                         return (1);
237                 }
238                 if (!(p8inf = EVP_PKEY2PKCS8_broken(pkey, p8_broken))) {
239                         BIO_printf(bio_err, "Error converting key\n");
240                         ERR_print_errors(bio_err);
241                         EVP_PKEY_free(pkey);
242                         BIO_free_all(out);
243                         return (1);
244                 }
245                 if(nocrypt) {
246                         if(outformat == FORMAT_PEM) 
247                                 PEM_write_bio_PKCS8_PRIV_KEY_INFO(out, p8inf);
248                         else if(outformat == FORMAT_ASN1)
249                                 i2d_PKCS8_PRIV_KEY_INFO_bio(out, p8inf);
250                         else {
251                                 BIO_printf(bio_err, "Bad format specified for key\n");
252                                 PKCS8_PRIV_KEY_INFO_free(p8inf);
253                                 EVP_PKEY_free(pkey);
254                                 BIO_free_all(out);
255                                 return (1);
256                         }
257                 } else {
258                         if(passout) p8pass = passout;
259                         else {
260                                 p8pass = pass;
261                                 if (EVP_read_pw_string(pass, sizeof pass, "Enter Encryption Password:", 1))
262                                 {
263                                         PKCS8_PRIV_KEY_INFO_free(p8inf);
264                                         EVP_PKEY_free(pkey);
265                                         BIO_free_all(out);
266                                         return (1);
267                                 }
268                         }
269                         app_RAND_load_file(NULL, bio_err, 0);
270                         if (!(p8 = PKCS8_encrypt(pbe_nid, cipher,
271                                         p8pass, strlen(p8pass),
272                                         NULL, 0, iter, p8inf))) {
273                                 BIO_printf(bio_err, "Error encrypting key\n");
274                                 ERR_print_errors(bio_err);
275                                 PKCS8_PRIV_KEY_INFO_free(p8inf);
276                                 EVP_PKEY_free(pkey);
277                                 BIO_free_all(out);
278                                 return (1);
279                         }
280                         app_RAND_write_file(NULL, bio_err);
281                         if(outformat == FORMAT_PEM) 
282                                 PEM_write_bio_PKCS8(out, p8);
283                         else if(outformat == FORMAT_ASN1)
284                                 i2d_PKCS8_bio(out, p8);
285                         else {
286                                 BIO_printf(bio_err, "Bad format specified for key\n");
287                                 PKCS8_PRIV_KEY_INFO_free(p8inf);
288                                 EVP_PKEY_free(pkey);
289                                 BIO_free_all(out);
290                                 return (1);
291                         }
292                         X509_SIG_free(p8);
293                 }
294                 PKCS8_PRIV_KEY_INFO_free (p8inf);
295                 EVP_PKEY_free(pkey);
296                 BIO_free_all(out);
297                 if(passin) OPENSSL_free(passin);
298                 if(passout) OPENSSL_free(passout);
299                 return (0);
300         }
301
302         if(nocrypt) {
303                 if(informat == FORMAT_PEM) 
304                         p8inf = PEM_read_bio_PKCS8_PRIV_KEY_INFO(in,NULL,NULL, NULL);
305                 else if(informat == FORMAT_ASN1)
306                         p8inf = d2i_PKCS8_PRIV_KEY_INFO_bio(in, NULL);
307                 else {
308                         BIO_printf(bio_err, "Bad format specified for key\n");
309                         return (1);
310                 }
311         } else {
312                 if(informat == FORMAT_PEM) 
313                         p8 = PEM_read_bio_PKCS8(in, NULL, NULL, NULL);
314                 else if(informat == FORMAT_ASN1)
315                         p8 = d2i_PKCS8_bio(in, NULL);
316                 else {
317                         BIO_printf(bio_err, "Bad format specified for key\n");
318                         return (1);
319                 }
320
321                 if (!p8) {
322                         BIO_printf (bio_err, "Error reading key\n");
323                         ERR_print_errors(bio_err);
324                         return (1);
325                 }
326                 if(passin) p8pass = passin;
327                 else {
328                         p8pass = pass;
329                         EVP_read_pw_string(pass, sizeof pass, "Enter Password:", 0);
330                 }
331                 p8inf = PKCS8_decrypt(p8, p8pass, strlen(p8pass));
332                 X509_SIG_free(p8);
333         }
334
335         if (!p8inf) {
336                 BIO_printf(bio_err, "Error decrypting key\n");
337                 ERR_print_errors(bio_err);
338                 return (1);
339         }
340
341         if (!(pkey = EVP_PKCS82PKEY(p8inf))) {
342                 BIO_printf(bio_err, "Error converting key\n");
343                 ERR_print_errors(bio_err);
344                 return (1);
345         }
346         
347         if (p8inf->broken) {
348                 BIO_printf(bio_err, "Warning: broken key encoding: ");
349                 switch (p8inf->broken) {
350                         case PKCS8_NO_OCTET:
351                         BIO_printf(bio_err, "No Octet String in PrivateKey\n");
352                         break;
353
354                         case PKCS8_EMBEDDED_PARAM:
355                         BIO_printf(bio_err, "DSA parameters included in PrivateKey\n");
356                         break;
357
358                         case PKCS8_NS_DB:
359                         BIO_printf(bio_err, "DSA public key include in PrivateKey\n");
360                         break;
361
362                         default:
363                         BIO_printf(bio_err, "Unknown broken type\n");
364                         break;
365                 }
366         }
367         
368         PKCS8_PRIV_KEY_INFO_free(p8inf);
369         if(outformat == FORMAT_PEM) 
370                 PEM_write_bio_PrivateKey(out, pkey, NULL, NULL, 0, NULL, passout);
371         else if(outformat == FORMAT_ASN1)
372                 i2d_PrivateKey_bio(out, pkey);
373         else {
374                 BIO_printf(bio_err, "Bad format specified for key\n");
375                         return (1);
376         }
377
378         end:
379         EVP_PKEY_free(pkey);
380         BIO_free_all(out);
381         BIO_free(in);
382         if(passin) OPENSSL_free(passin);
383         if(passout) OPENSSL_free(passout);
384
385         return (0);
386 }