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[openssl.git] / apps / spkac.c
1 /* apps/spkac.c */
2
3 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
4  * project 1999. Based on an original idea by Massimiliano Pala
5  * (madwolf@openca.org).
6  */
7 /* ====================================================================
8  * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  *
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer. 
16  *
17  * 2. Redistributions in binary form must reproduce the above copyright
18  *    notice, this list of conditions and the following disclaimer in
19  *    the documentation and/or other materials provided with the
20  *    distribution.
21  *
22  * 3. All advertising materials mentioning features or use of this
23  *    software must display the following acknowledgment:
24  *    "This product includes software developed by the OpenSSL Project
25  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
26  *
27  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
28  *    endorse or promote products derived from this software without
29  *    prior written permission. For written permission, please contact
30  *    licensing@OpenSSL.org.
31  *
32  * 5. Products derived from this software may not be called "OpenSSL"
33  *    nor may "OpenSSL" appear in their names without prior written
34  *    permission of the OpenSSL Project.
35  *
36  * 6. Redistributions of any form whatsoever must retain the following
37  *    acknowledgment:
38  *    "This product includes software developed by the OpenSSL Project
39  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
40  *
41  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
42  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
44  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
45  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
46  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
47  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
48  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
49  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
50  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
51  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
52  * OF THE POSSIBILITY OF SUCH DAMAGE.
53  * ====================================================================
54  *
55  * This product includes cryptographic software written by Eric Young
56  * (eay@cryptsoft.com).  This product includes software written by Tim
57  * Hudson (tjh@cryptsoft.com).
58  *
59  */
60 #include <stdio.h>
61 #include <stdlib.h>
62 #include <string.h>
63 #include <time.h>
64 #include "apps.h"
65 #include <openssl/bio.h>
66 #include <openssl/conf.h>
67 #include <openssl/err.h>
68 #include <openssl/evp.h>
69 #include <openssl/lhash.h>
70 #include <openssl/x509.h>
71 #include <openssl/pem.h>
72
73 #undef PROG
74 #define PROG    spkac_main
75
76 /*-
77  * -in arg      - input file - default stdin
78  * -out arg     - output file - default stdout
79  */
80
81 int MAIN(int, char **);
82
83 int MAIN(int argc, char **argv)
84         {
85         ENGINE *e = NULL;
86         int i,badops=0, ret = 1;
87         BIO *in = NULL,*out = NULL;
88         int verify=0,noout=0,pubkey=0;
89         char *infile = NULL,*outfile = NULL,*prog;
90         char *passargin = NULL, *passin = NULL;
91         const char *spkac = "SPKAC", *spksect = "default";
92         char *spkstr = NULL;
93         char *challenge = NULL, *keyfile = NULL;
94         CONF *conf = NULL;
95         NETSCAPE_SPKI *spki = NULL;
96         EVP_PKEY *pkey = NULL;
97 #ifndef OPENSSL_NO_ENGINE
98         char *engine=NULL;
99 #endif
100
101         apps_startup();
102
103         if (!bio_err) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
104
105         if (!load_config(bio_err, NULL))
106                 goto end;
107
108         prog=argv[0];
109         argc--;
110         argv++;
111         while (argc >= 1)
112                 {
113                 if (strcmp(*argv,"-in") == 0)
114                         {
115                         if (--argc < 1) goto bad;
116                         infile= *(++argv);
117                         }
118                 else if (strcmp(*argv,"-out") == 0)
119                         {
120                         if (--argc < 1) goto bad;
121                         outfile= *(++argv);
122                         }
123                 else if (strcmp(*argv,"-passin") == 0)
124                         {
125                         if (--argc < 1) goto bad;
126                         passargin= *(++argv);
127                         }
128                 else if (strcmp(*argv,"-key") == 0)
129                         {
130                         if (--argc < 1) goto bad;
131                         keyfile= *(++argv);
132                         }
133                 else if (strcmp(*argv,"-challenge") == 0)
134                         {
135                         if (--argc < 1) goto bad;
136                         challenge= *(++argv);
137                         }
138                 else if (strcmp(*argv,"-spkac") == 0)
139                         {
140                         if (--argc < 1) goto bad;
141                         spkac= *(++argv);
142                         }
143                 else if (strcmp(*argv,"-spksect") == 0)
144                         {
145                         if (--argc < 1) goto bad;
146                         spksect= *(++argv);
147                         }
148 #ifndef OPENSSL_NO_ENGINE
149                 else if (strcmp(*argv,"-engine") == 0)
150                         {
151                         if (--argc < 1) goto bad;
152                         engine= *(++argv);
153                         }
154 #endif
155                 else if (strcmp(*argv,"-noout") == 0)
156                         noout=1;
157                 else if (strcmp(*argv,"-pubkey") == 0)
158                         pubkey=1;
159                 else if (strcmp(*argv,"-verify") == 0)
160                         verify=1;
161                 else badops = 1;
162                 argc--;
163                 argv++;
164                 }
165
166         if (badops)
167                 {
168 bad:
169                 BIO_printf(bio_err,"%s [options]\n",prog);
170                 BIO_printf(bio_err,"where options are\n");
171                 BIO_printf(bio_err," -in arg        input file\n");
172                 BIO_printf(bio_err," -out arg       output file\n");
173                 BIO_printf(bio_err," -key arg       create SPKAC using private key\n");
174                 BIO_printf(bio_err," -passin arg    input file pass phrase source\n");
175                 BIO_printf(bio_err," -challenge arg challenge string\n");
176                 BIO_printf(bio_err," -spkac arg     alternative SPKAC name\n");
177                 BIO_printf(bio_err," -noout         don't print SPKAC\n");
178                 BIO_printf(bio_err," -pubkey        output public key\n");
179                 BIO_printf(bio_err," -verify        verify SPKAC signature\n");
180 #ifndef OPENSSL_NO_ENGINE
181                 BIO_printf(bio_err," -engine e      use engine e, possibly a hardware device.\n");
182 #endif
183                 goto end;
184                 }
185
186         ERR_load_crypto_strings();
187         if(!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
188                 BIO_printf(bio_err, "Error getting password\n");
189                 goto end;
190         }
191
192 #ifndef OPENSSL_NO_ENGINE
193         e = setup_engine(bio_err, engine, 0);
194 #endif
195
196         if(keyfile) {
197                 pkey = load_key(bio_err,
198                                 strcmp(keyfile, "-") ? keyfile : NULL,
199                                 FORMAT_PEM, 1, passin, e, "private key");
200                 if(!pkey) {
201                         goto end;
202                 }
203                 spki = NETSCAPE_SPKI_new();
204                 if(challenge) ASN1_STRING_set(spki->spkac->challenge,
205                                                  challenge, (int)strlen(challenge));
206                 NETSCAPE_SPKI_set_pubkey(spki, pkey);
207                 NETSCAPE_SPKI_sign(spki, pkey, EVP_md5());
208                 spkstr = NETSCAPE_SPKI_b64_encode(spki);
209
210                 if (outfile) out = BIO_new_file(outfile, "w");
211                 else {
212                         out = BIO_new_fp(stdout, BIO_NOCLOSE);
213 #ifdef OPENSSL_SYS_VMS
214                         {
215                             BIO *tmpbio = BIO_new(BIO_f_linebuffer());
216                             out = BIO_push(tmpbio, out);
217                         }
218 #endif
219                 }
220
221                 if(!out) {
222                         BIO_printf(bio_err, "Error opening output file\n");
223                         ERR_print_errors(bio_err);
224                         goto end;
225                 }
226                 BIO_printf(out, "SPKAC=%s\n", spkstr);
227                 OPENSSL_free(spkstr);
228                 ret = 0;
229                 goto end;
230         }
231
232         
233
234         if (infile) in = BIO_new_file(infile, "r");
235         else in = BIO_new_fp(stdin, BIO_NOCLOSE);
236
237         if(!in) {
238                 BIO_printf(bio_err, "Error opening input file\n");
239                 ERR_print_errors(bio_err);
240                 goto end;
241         }
242
243         conf = NCONF_new(NULL);
244         i = NCONF_load_bio(conf, in, NULL);
245
246         if(!i) {
247                 BIO_printf(bio_err, "Error parsing config file\n");
248                 ERR_print_errors(bio_err);
249                 goto end;
250         }
251
252         spkstr = NCONF_get_string(conf, spksect, spkac);
253                 
254         if(!spkstr) {
255                 BIO_printf(bio_err, "Can't find SPKAC called \"%s\"\n", spkac);
256                 ERR_print_errors(bio_err);
257                 goto end;
258         }
259
260         spki = NETSCAPE_SPKI_b64_decode(spkstr, -1);
261         
262         if(!spki) {
263                 BIO_printf(bio_err, "Error loading SPKAC\n");
264                 ERR_print_errors(bio_err);
265                 goto end;
266         }
267
268         if (outfile) out = BIO_new_file(outfile, "w");
269         else {
270                 out = BIO_new_fp(stdout, BIO_NOCLOSE);
271 #ifdef OPENSSL_SYS_VMS
272                 {
273                     BIO *tmpbio = BIO_new(BIO_f_linebuffer());
274                     out = BIO_push(tmpbio, out);
275                 }
276 #endif
277         }
278
279         if(!out) {
280                 BIO_printf(bio_err, "Error opening output file\n");
281                 ERR_print_errors(bio_err);
282                 goto end;
283         }
284
285         if(!noout) NETSCAPE_SPKI_print(out, spki);
286         pkey = NETSCAPE_SPKI_get_pubkey(spki);
287         if(verify) {
288                 i = NETSCAPE_SPKI_verify(spki, pkey);
289                 if (i > 0) BIO_printf(bio_err, "Signature OK\n");
290                 else {
291                         BIO_printf(bio_err, "Signature Failure\n");
292                         ERR_print_errors(bio_err);
293                         goto end;
294                 }
295         }
296         if(pubkey) PEM_write_bio_PUBKEY(out, pkey);
297
298         ret = 0;
299
300 end:
301         NCONF_free(conf);
302         NETSCAPE_SPKI_free(spki);
303         BIO_free(in);
304         BIO_free_all(out);
305         EVP_PKEY_free(pkey);
306         if(passin) OPENSSL_free(passin);
307         apps_shutdown();
308         OPENSSL_EXIT(ret);
309         }