spkac.c revision 296465 
1/* apps/spkac.c */
2
3/*
4 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
5 * 1999. Based on an original idea by Massimiliano Pala (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
81int MAIN(int, char **);
82
83int 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)
104        bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
105
106    if (!load_config(bio_err, NULL))
107        goto end;
108
109    prog = argv[0];
110    argc--;
111    argv++;
112    while (argc >= 1) {
113        if (strcmp(*argv, "-in") == 0) {
114            if (--argc < 1)
115                goto bad;
116            infile = *(++argv);
117        } else if (strcmp(*argv, "-out") == 0) {
118            if (--argc < 1)
119                goto bad;
120            outfile = *(++argv);
121        } else if (strcmp(*argv, "-passin") == 0) {
122            if (--argc < 1)
123                goto bad;
124            passargin = *(++argv);
125        } else if (strcmp(*argv, "-key") == 0) {
126            if (--argc < 1)
127                goto bad;
128            keyfile = *(++argv);
129        } else if (strcmp(*argv, "-challenge") == 0) {
130            if (--argc < 1)
131                goto bad;
132            challenge = *(++argv);
133        } else if (strcmp(*argv, "-spkac") == 0) {
134            if (--argc < 1)
135                goto bad;
136            spkac = *(++argv);
137        } else if (strcmp(*argv, "-spksect") == 0) {
138            if (--argc < 1)
139                goto bad;
140            spksect = *(++argv);
141        }
142#ifndef OPENSSL_NO_ENGINE
143        else if (strcmp(*argv, "-engine") == 0) {
144            if (--argc < 1)
145                goto bad;
146            engine = *(++argv);
147        }
148#endif
149        else if (strcmp(*argv, "-noout") == 0)
150            noout = 1;
151        else if (strcmp(*argv, "-pubkey") == 0)
152            pubkey = 1;
153        else if (strcmp(*argv, "-verify") == 0)
154            verify = 1;
155        else
156            badops = 1;
157        argc--;
158        argv++;
159    }
160
161    if (badops) {
162 bad:
163        BIO_printf(bio_err, "%s [options]\n", prog);
164        BIO_printf(bio_err, "where options are\n");
165        BIO_printf(bio_err, " -in arg        input file\n");
166        BIO_printf(bio_err, " -out arg       output file\n");
167        BIO_printf(bio_err,
168                   " -key arg       create SPKAC using private key\n");
169        BIO_printf(bio_err,
170                   " -passin arg    input file pass phrase source\n");
171        BIO_printf(bio_err, " -challenge arg challenge string\n");
172        BIO_printf(bio_err, " -spkac arg     alternative SPKAC name\n");
173        BIO_printf(bio_err, " -noout         don't print SPKAC\n");
174        BIO_printf(bio_err, " -pubkey        output public key\n");
175        BIO_printf(bio_err, " -verify        verify SPKAC signature\n");
176#ifndef OPENSSL_NO_ENGINE
177        BIO_printf(bio_err,
178                   " -engine e      use engine e, possibly a hardware device.\n");
179#endif
180        goto end;
181    }
182
183    ERR_load_crypto_strings();
184    if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
185        BIO_printf(bio_err, "Error getting password\n");
186        goto end;
187    }
188#ifndef OPENSSL_NO_ENGINE
189    e = setup_engine(bio_err, engine, 0);
190#endif
191
192    if (keyfile) {
193        pkey = load_key(bio_err,
194                        strcmp(keyfile, "-") ? keyfile : NULL,
195                        FORMAT_PEM, 1, passin, e, "private key");
196        if (!pkey) {
197            goto end;
198        }
199        spki = NETSCAPE_SPKI_new();
200        if (challenge)
201            ASN1_STRING_set(spki->spkac->challenge,
202                            challenge, (int)strlen(challenge));
203        NETSCAPE_SPKI_set_pubkey(spki, pkey);
204        NETSCAPE_SPKI_sign(spki, pkey, EVP_md5());
205        spkstr = NETSCAPE_SPKI_b64_encode(spki);
206
207        if (outfile)
208            out = BIO_new_file(outfile, "w");
209        else {
210            out = BIO_new_fp(stdout, BIO_NOCLOSE);
211#ifdef OPENSSL_SYS_VMS
212            {
213                BIO *tmpbio = BIO_new(BIO_f_linebuffer());
214                out = BIO_push(tmpbio, out);
215            }
216#endif
217        }
218
219        if (!out) {
220            BIO_printf(bio_err, "Error opening output file\n");
221            ERR_print_errors(bio_err);
222            goto end;
223        }
224        BIO_printf(out, "SPKAC=%s\n", spkstr);
225        OPENSSL_free(spkstr);
226        ret = 0;
227        goto end;
228    }
229
230    if (infile)
231        in = BIO_new_file(infile, "r");
232    else
233        in = BIO_new_fp(stdin, BIO_NOCLOSE);
234
235    if (!in) {
236        BIO_printf(bio_err, "Error opening input file\n");
237        ERR_print_errors(bio_err);
238        goto end;
239    }
240
241    conf = NCONF_new(NULL);
242    i = NCONF_load_bio(conf, in, NULL);
243
244    if (!i) {
245        BIO_printf(bio_err, "Error parsing config file\n");
246        ERR_print_errors(bio_err);
247        goto end;
248    }
249
250    spkstr = NCONF_get_string(conf, spksect, spkac);
251
252    if (!spkstr) {
253        BIO_printf(bio_err, "Can't find SPKAC called \"%s\"\n", spkac);
254        ERR_print_errors(bio_err);
255        goto end;
256    }
257
258    spki = NETSCAPE_SPKI_b64_decode(spkstr, -1);
259
260    if (!spki) {
261        BIO_printf(bio_err, "Error loading SPKAC\n");
262        ERR_print_errors(bio_err);
263        goto end;
264    }
265
266    if (outfile)
267        out = BIO_new_file(outfile, "w");
268    else {
269        out = BIO_new_fp(stdout, BIO_NOCLOSE);
270#ifdef OPENSSL_SYS_VMS
271        {
272            BIO *tmpbio = BIO_new(BIO_f_linebuffer());
273            out = BIO_push(tmpbio, out);
274        }
275#endif
276    }
277
278    if (!out) {
279        BIO_printf(bio_err, "Error opening output file\n");
280        ERR_print_errors(bio_err);
281        goto end;
282    }
283
284    if (!noout)
285        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)
290            BIO_printf(bio_err, "Signature OK\n");
291        else {
292            BIO_printf(bio_err, "Signature Failure\n");
293            ERR_print_errors(bio_err);
294            goto end;
295        }
296    }
297    if (pubkey)
298        PEM_write_bio_PUBKEY(out, pkey);
299
300    ret = 0;
301
302 end:
303    NCONF_free(conf);
304    NETSCAPE_SPKI_free(spki);
305    BIO_free(in);
306    BIO_free_all(out);
307    EVP_PKEY_free(pkey);
308    if (passin)
309        OPENSSL_free(passin);
310    apps_shutdown();
311    OPENSSL_EXIT(ret);
312}
313