538a419345eb0f51d3a045aacd9f0e3935cb4974
[openssl.git] / apps / spkac.c
1 /* apps/spkac.c */
2
3 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) 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 #include <openssl/engine.h>
73
74 #undef PROG
75 #define PROG    spkac_main
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, *key = NULL;
88         int verify=0,noout=0,pubkey=0;
89         char *infile = NULL,*outfile = NULL,*prog;
90         char *passargin = NULL, *passin = NULL;
91         char *spkac = "SPKAC", *spksect = "default", *spkstr = NULL;
92         char *challenge = NULL, *keyfile = NULL;
93         LHASH *conf = NULL;
94         NETSCAPE_SPKI *spki = NULL;
95         EVP_PKEY *pkey = NULL;
96         char *engine=NULL;
97
98         apps_startup();
99
100         if (!bio_err) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
101
102         prog=argv[0];
103         argc--;
104         argv++;
105         while (argc >= 1)
106                 {
107                 if (strcmp(*argv,"-in") == 0)
108                         {
109                         if (--argc < 1) goto bad;
110                         infile= *(++argv);
111                         }
112                 else if (strcmp(*argv,"-out") == 0)
113                         {
114                         if (--argc < 1) goto bad;
115                         outfile= *(++argv);
116                         }
117                 else if (strcmp(*argv,"-passin") == 0)
118                         {
119                         if (--argc < 1) goto bad;
120                         passargin= *(++argv);
121                         }
122                 else if (strcmp(*argv,"-key") == 0)
123                         {
124                         if (--argc < 1) goto bad;
125                         keyfile= *(++argv);
126                         }
127                 else if (strcmp(*argv,"-challenge") == 0)
128                         {
129                         if (--argc < 1) goto bad;
130                         challenge= *(++argv);
131                         }
132                 else if (strcmp(*argv,"-spkac") == 0)
133                         {
134                         if (--argc < 1) goto bad;
135                         spkac= *(++argv);
136                         }
137                 else if (strcmp(*argv,"-spksect") == 0)
138                         {
139                         if (--argc < 1) goto bad;
140                         spksect= *(++argv);
141                         }
142                 else if (strcmp(*argv,"-engine") == 0)
143                         {
144                         if (--argc < 1) goto bad;
145                         engine= *(++argv);
146                         }
147                 else if (strcmp(*argv,"-noout") == 0)
148                         noout=1;
149                 else if (strcmp(*argv,"-pubkey") == 0)
150                         pubkey=1;
151                 else if (strcmp(*argv,"-verify") == 0)
152                         verify=1;
153                 else badops = 1;
154                 argc--;
155                 argv++;
156                 }
157
158         if (badops)
159                 {
160 bad:
161                 BIO_printf(bio_err,"%s [options]\n",prog);
162                 BIO_printf(bio_err,"where options are\n");
163                 BIO_printf(bio_err," -in arg        input file\n");
164                 BIO_printf(bio_err," -out arg       output file\n");
165                 BIO_printf(bio_err," -key arg       create SPKAC using private key\n");
166                 BIO_printf(bio_err," -passin arg    input file pass phrase source\n");
167                 BIO_printf(bio_err," -challenge arg challenge string\n");
168                 BIO_printf(bio_err," -spkac arg     alternative SPKAC name\n");
169                 BIO_printf(bio_err," -noout         don't print SPKAC\n");
170                 BIO_printf(bio_err," -pubkey        output public key\n");
171                 BIO_printf(bio_err," -verify        verify SPKAC signature\n");
172                 BIO_printf(bio_err," -engine e      use engine e, possibly a hardware device.\n");
173                 goto end;
174                 }
175
176         ERR_load_crypto_strings();
177         if(!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
178                 BIO_printf(bio_err, "Error getting password\n");
179                 goto end;
180         }
181
182         e = setup_engine(bio_err, engine, 0);
183
184         if(keyfile) {
185                 if(strcmp(keyfile, "-")) key = BIO_new_file(keyfile, "r");
186                 else key = BIO_new_fp(stdin, BIO_NOCLOSE);
187                 if(!key) {
188                         BIO_printf(bio_err, "Error opening key file\n");
189                         ERR_print_errors(bio_err);
190                         goto end;
191                 }
192                 pkey = PEM_read_bio_PrivateKey(key, NULL, NULL, passin);
193                 if(!pkey) {
194                         BIO_printf(bio_err, "Error reading private key\n");
195                         ERR_print_errors(bio_err);
196                         goto end;
197                 }
198                 spki = NETSCAPE_SPKI_new();
199                 if(challenge) ASN1_STRING_set(spki->spkac->challenge,
200                                                  challenge, strlen(challenge));
201                 NETSCAPE_SPKI_set_pubkey(spki, pkey);
202                 NETSCAPE_SPKI_sign(spki, pkey, EVP_md5());
203                 spkstr = NETSCAPE_SPKI_b64_encode(spki);
204
205                 if (outfile) out = BIO_new_file(outfile, "w");
206                 else {
207                         out = BIO_new_fp(stdout, BIO_NOCLOSE);
208 #ifdef OPENSSL_SYS_VMS
209                         {
210                             BIO *tmpbio = BIO_new(BIO_f_linebuffer());
211                             out = BIO_push(tmpbio, out);
212                         }
213 #endif
214                 }
215
216                 if(!out) {
217                         BIO_printf(bio_err, "Error opening output file\n");
218                         ERR_print_errors(bio_err);
219                         goto end;
220                 }
221                 BIO_printf(out, "SPKAC=%s\n", spkstr);
222                 OPENSSL_free(spkstr);
223                 ret = 0;
224                 goto end;
225         }
226
227         
228
229         if (infile) in = BIO_new_file(infile, "r");
230         else in = BIO_new_fp(stdin, BIO_NOCLOSE);
231
232         if(!in) {
233                 BIO_printf(bio_err, "Error opening input file\n");
234                 ERR_print_errors(bio_err);
235                 goto end;
236         }
237
238         conf = CONF_load_bio(NULL, in, NULL);
239
240         if(!conf) {
241                 BIO_printf(bio_err, "Error parsing config file\n");
242                 ERR_print_errors(bio_err);
243                 goto end;
244         }
245
246         spkstr = CONF_get_string(conf, spksect, spkac);
247                 
248         if(!spkstr) {
249                 BIO_printf(bio_err, "Can't find SPKAC called \"%s\"\n", spkac);
250                 ERR_print_errors(bio_err);
251                 goto end;
252         }
253
254         spki = NETSCAPE_SPKI_b64_decode(spkstr, -1);
255         
256         if(!spki) {
257                 BIO_printf(bio_err, "Error loading SPKAC\n");
258                 ERR_print_errors(bio_err);
259                 goto end;
260         }
261
262         if (outfile) out = BIO_new_file(outfile, "w");
263         else {
264                 out = BIO_new_fp(stdout, BIO_NOCLOSE);
265 #ifdef OPENSSL_SYS_VMS
266                 {
267                     BIO *tmpbio = BIO_new(BIO_f_linebuffer());
268                     out = BIO_push(tmpbio, out);
269                 }
270 #endif
271         }
272
273         if(!out) {
274                 BIO_printf(bio_err, "Error opening output file\n");
275                 ERR_print_errors(bio_err);
276                 goto end;
277         }
278
279         if(!noout) NETSCAPE_SPKI_print(out, spki);
280         pkey = NETSCAPE_SPKI_get_pubkey(spki);
281         if(verify) {
282                 i = NETSCAPE_SPKI_verify(spki, pkey);
283                 if(i) BIO_printf(bio_err, "Signature OK\n");
284                 else {
285                         BIO_printf(bio_err, "Signature Failure\n");
286                         ERR_print_errors(bio_err);
287                         goto end;
288                 }
289         }
290         if(pubkey) PEM_write_bio_PUBKEY(out, pkey);
291
292         ret = 0;
293
294 end:
295         CONF_free(conf);
296         NETSCAPE_SPKI_free(spki);
297         BIO_free(in);
298         BIO_free_all(out);
299         BIO_free(key);
300         EVP_PKEY_free(pkey);
301         if(passin) OPENSSL_free(passin);
302         EXIT(ret);
303         }