1cca6fc52SDaniel Fojt /* $OpenBSD: spkac.c,v 1.11 2019/07/14 03:30:46 guenther Exp $ */
2f5b1c8a1SJohn Marino /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3f5b1c8a1SJohn Marino * project 1999. Based on an original idea by Massimiliano Pala
4f5b1c8a1SJohn Marino * (madwolf@openca.org).
5f5b1c8a1SJohn Marino */
6f5b1c8a1SJohn Marino /* ====================================================================
7f5b1c8a1SJohn Marino * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
8f5b1c8a1SJohn Marino *
9f5b1c8a1SJohn Marino * Redistribution and use in source and binary forms, with or without
10f5b1c8a1SJohn Marino * modification, are permitted provided that the following conditions
11f5b1c8a1SJohn Marino * are met:
12f5b1c8a1SJohn Marino *
13f5b1c8a1SJohn Marino * 1. Redistributions of source code must retain the above copyright
14f5b1c8a1SJohn Marino * notice, this list of conditions and the following disclaimer.
15f5b1c8a1SJohn Marino *
16f5b1c8a1SJohn Marino * 2. Redistributions in binary form must reproduce the above copyright
17f5b1c8a1SJohn Marino * notice, this list of conditions and the following disclaimer in
18f5b1c8a1SJohn Marino * the documentation and/or other materials provided with the
19f5b1c8a1SJohn Marino * distribution.
20f5b1c8a1SJohn Marino *
21f5b1c8a1SJohn Marino * 3. All advertising materials mentioning features or use of this
22f5b1c8a1SJohn Marino * software must display the following acknowledgment:
23f5b1c8a1SJohn Marino * "This product includes software developed by the OpenSSL Project
24f5b1c8a1SJohn Marino * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25f5b1c8a1SJohn Marino *
26f5b1c8a1SJohn Marino * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27f5b1c8a1SJohn Marino * endorse or promote products derived from this software without
28f5b1c8a1SJohn Marino * prior written permission. For written permission, please contact
29f5b1c8a1SJohn Marino * licensing@OpenSSL.org.
30f5b1c8a1SJohn Marino *
31f5b1c8a1SJohn Marino * 5. Products derived from this software may not be called "OpenSSL"
32f5b1c8a1SJohn Marino * nor may "OpenSSL" appear in their names without prior written
33f5b1c8a1SJohn Marino * permission of the OpenSSL Project.
34f5b1c8a1SJohn Marino *
35f5b1c8a1SJohn Marino * 6. Redistributions of any form whatsoever must retain the following
36f5b1c8a1SJohn Marino * acknowledgment:
37f5b1c8a1SJohn Marino * "This product includes software developed by the OpenSSL Project
38f5b1c8a1SJohn Marino * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39f5b1c8a1SJohn Marino *
40f5b1c8a1SJohn Marino * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41f5b1c8a1SJohn Marino * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42f5b1c8a1SJohn Marino * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43f5b1c8a1SJohn Marino * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44f5b1c8a1SJohn Marino * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45f5b1c8a1SJohn Marino * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46f5b1c8a1SJohn Marino * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47f5b1c8a1SJohn Marino * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48f5b1c8a1SJohn Marino * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49f5b1c8a1SJohn Marino * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50f5b1c8a1SJohn Marino * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51f5b1c8a1SJohn Marino * OF THE POSSIBILITY OF SUCH DAMAGE.
52f5b1c8a1SJohn Marino * ====================================================================
53f5b1c8a1SJohn Marino *
54f5b1c8a1SJohn Marino * This product includes cryptographic software written by Eric Young
55f5b1c8a1SJohn Marino * (eay@cryptsoft.com). This product includes software written by Tim
56f5b1c8a1SJohn Marino * Hudson (tjh@cryptsoft.com).
57f5b1c8a1SJohn Marino *
58f5b1c8a1SJohn Marino */
59f5b1c8a1SJohn Marino
60f5b1c8a1SJohn Marino #include <stdio.h>
61f5b1c8a1SJohn Marino #include <stdlib.h>
62f5b1c8a1SJohn Marino #include <string.h>
63f5b1c8a1SJohn Marino #include <time.h>
64f5b1c8a1SJohn Marino
65f5b1c8a1SJohn Marino #include "apps.h"
66f5b1c8a1SJohn Marino #include "progs.h"
67f5b1c8a1SJohn Marino
68f5b1c8a1SJohn Marino #include <openssl/bio.h>
69f5b1c8a1SJohn Marino #include <openssl/conf.h>
70f5b1c8a1SJohn Marino #include <openssl/err.h>
71f5b1c8a1SJohn Marino #include <openssl/evp.h>
72f5b1c8a1SJohn Marino #include <openssl/lhash.h>
73f5b1c8a1SJohn Marino #include <openssl/pem.h>
74f5b1c8a1SJohn Marino #include <openssl/x509.h>
75f5b1c8a1SJohn Marino
76f5b1c8a1SJohn Marino static struct {
77f5b1c8a1SJohn Marino char *challenge;
78f5b1c8a1SJohn Marino char *infile;
79f5b1c8a1SJohn Marino char *keyfile;
80f5b1c8a1SJohn Marino int noout;
81f5b1c8a1SJohn Marino char *outfile;
82f5b1c8a1SJohn Marino char *passargin;
83f5b1c8a1SJohn Marino int pubkey;
84f5b1c8a1SJohn Marino char *spkac;
85f5b1c8a1SJohn Marino char *spksect;
86f5b1c8a1SJohn Marino int verify;
87f5b1c8a1SJohn Marino } spkac_config;
88f5b1c8a1SJohn Marino
89cca6fc52SDaniel Fojt static const struct option spkac_options[] = {
90f5b1c8a1SJohn Marino {
91f5b1c8a1SJohn Marino .name = "challenge",
92f5b1c8a1SJohn Marino .argname = "string",
93f5b1c8a1SJohn Marino .desc = "Specify challenge string if SPKAC is generated",
94f5b1c8a1SJohn Marino .type = OPTION_ARG,
95f5b1c8a1SJohn Marino .opt.arg = &spkac_config.challenge,
96f5b1c8a1SJohn Marino },
97f5b1c8a1SJohn Marino {
98f5b1c8a1SJohn Marino .name = "in",
99f5b1c8a1SJohn Marino .argname = "file",
100f5b1c8a1SJohn Marino .desc = "Input file (default stdin)",
101f5b1c8a1SJohn Marino .type = OPTION_ARG,
102f5b1c8a1SJohn Marino .opt.arg = &spkac_config.infile,
103f5b1c8a1SJohn Marino },
104f5b1c8a1SJohn Marino {
105f5b1c8a1SJohn Marino .name = "key",
106f5b1c8a1SJohn Marino .argname = "file",
107f5b1c8a1SJohn Marino .desc = "Create SPKAC using private key file",
108f5b1c8a1SJohn Marino .type = OPTION_ARG,
109f5b1c8a1SJohn Marino .opt.arg = &spkac_config.keyfile,
110f5b1c8a1SJohn Marino },
111f5b1c8a1SJohn Marino {
112f5b1c8a1SJohn Marino .name = "noout",
113f5b1c8a1SJohn Marino .desc = "Do not print text version of SPKAC",
114f5b1c8a1SJohn Marino .type = OPTION_FLAG,
115f5b1c8a1SJohn Marino .opt.flag = &spkac_config.noout,
116f5b1c8a1SJohn Marino },
117f5b1c8a1SJohn Marino {
118f5b1c8a1SJohn Marino .name = "out",
119f5b1c8a1SJohn Marino .argname = "file",
120f5b1c8a1SJohn Marino .desc = "Output file (default stdout)",
121f5b1c8a1SJohn Marino .type = OPTION_ARG,
122f5b1c8a1SJohn Marino .opt.arg = &spkac_config.outfile,
123f5b1c8a1SJohn Marino },
124f5b1c8a1SJohn Marino {
125f5b1c8a1SJohn Marino .name = "passin",
126f5b1c8a1SJohn Marino .argname = "src",
127f5b1c8a1SJohn Marino .desc = "Input file passphrase source",
128f5b1c8a1SJohn Marino .type = OPTION_ARG,
129f5b1c8a1SJohn Marino .opt.arg = &spkac_config.passargin,
130f5b1c8a1SJohn Marino },
131f5b1c8a1SJohn Marino {
132f5b1c8a1SJohn Marino .name = "pubkey",
133f5b1c8a1SJohn Marino .desc = "Output public key of an SPKAC (not used if creating)",
134f5b1c8a1SJohn Marino .type = OPTION_FLAG,
135f5b1c8a1SJohn Marino .opt.flag = &spkac_config.pubkey,
136f5b1c8a1SJohn Marino },
137f5b1c8a1SJohn Marino {
138f5b1c8a1SJohn Marino .name = "spkac",
139f5b1c8a1SJohn Marino .argname = "name",
140f5b1c8a1SJohn Marino .desc = "SPKAC name (default \"SPKAC\")",
141f5b1c8a1SJohn Marino .type = OPTION_ARG,
142f5b1c8a1SJohn Marino .opt.arg = &spkac_config.spkac,
143f5b1c8a1SJohn Marino },
144f5b1c8a1SJohn Marino {
145f5b1c8a1SJohn Marino .name = "spksect",
146f5b1c8a1SJohn Marino .argname = "name",
147f5b1c8a1SJohn Marino .desc = "Name of the section containing SPKAC (default"
148f5b1c8a1SJohn Marino " \"default\")",
149f5b1c8a1SJohn Marino .type = OPTION_ARG,
150f5b1c8a1SJohn Marino .opt.arg = &spkac_config.spksect,
151f5b1c8a1SJohn Marino },
152f5b1c8a1SJohn Marino {
153f5b1c8a1SJohn Marino .name = "verify",
154f5b1c8a1SJohn Marino .desc = "Verify digital signature on supplied SPKAC",
155f5b1c8a1SJohn Marino .type = OPTION_FLAG,
156f5b1c8a1SJohn Marino .opt.flag = &spkac_config.verify,
157f5b1c8a1SJohn Marino },
158f5b1c8a1SJohn Marino { NULL }
159f5b1c8a1SJohn Marino };
160f5b1c8a1SJohn Marino
161f5b1c8a1SJohn Marino static void
spkac_usage(void)162f5b1c8a1SJohn Marino spkac_usage(void)
163f5b1c8a1SJohn Marino {
164f5b1c8a1SJohn Marino fprintf(stderr,
165f5b1c8a1SJohn Marino "usage: spkac [-challenge string] [-in file] "
166f5b1c8a1SJohn Marino "[-key file] [-noout]\n"
167f5b1c8a1SJohn Marino " [-out file] [-passin src] [-pubkey] [-spkac name] "
168f5b1c8a1SJohn Marino "[-spksect section]\n"
169f5b1c8a1SJohn Marino " [-verify]\n\n");
170f5b1c8a1SJohn Marino options_usage(spkac_options);
171f5b1c8a1SJohn Marino }
172f5b1c8a1SJohn Marino
173f5b1c8a1SJohn Marino int
spkac_main(int argc,char ** argv)174f5b1c8a1SJohn Marino spkac_main(int argc, char **argv)
175f5b1c8a1SJohn Marino {
176f5b1c8a1SJohn Marino int i, ret = 1;
177f5b1c8a1SJohn Marino BIO *in = NULL, *out = NULL;
178f5b1c8a1SJohn Marino char *passin = NULL;
179f5b1c8a1SJohn Marino char *spkstr = NULL;
180f5b1c8a1SJohn Marino CONF *conf = NULL;
181f5b1c8a1SJohn Marino NETSCAPE_SPKI *spki = NULL;
182f5b1c8a1SJohn Marino EVP_PKEY *pkey = NULL;
183f5b1c8a1SJohn Marino
184f5b1c8a1SJohn Marino if (single_execution) {
18572c33676SMaxim Ag if (pledge("stdio cpath wpath rpath tty", NULL) == -1) {
186f5b1c8a1SJohn Marino perror("pledge");
187f5b1c8a1SJohn Marino exit(1);
188f5b1c8a1SJohn Marino }
189f5b1c8a1SJohn Marino }
190f5b1c8a1SJohn Marino
191f5b1c8a1SJohn Marino memset(&spkac_config, 0, sizeof(spkac_config));
192f5b1c8a1SJohn Marino spkac_config.spkac = "SPKAC";
193f5b1c8a1SJohn Marino spkac_config.spksect = "default";
194f5b1c8a1SJohn Marino
195f5b1c8a1SJohn Marino if (options_parse(argc, argv, spkac_options, NULL, NULL) != 0) {
196f5b1c8a1SJohn Marino spkac_usage();
197f5b1c8a1SJohn Marino return (1);
198f5b1c8a1SJohn Marino }
199f5b1c8a1SJohn Marino
200f5b1c8a1SJohn Marino if (!app_passwd(bio_err, spkac_config.passargin, NULL, &passin, NULL)) {
201f5b1c8a1SJohn Marino BIO_printf(bio_err, "Error getting password\n");
202f5b1c8a1SJohn Marino goto end;
203f5b1c8a1SJohn Marino }
204f5b1c8a1SJohn Marino
205f5b1c8a1SJohn Marino if (spkac_config.keyfile) {
206f5b1c8a1SJohn Marino pkey = load_key(bio_err,
207f5b1c8a1SJohn Marino strcmp(spkac_config.keyfile, "-") ? spkac_config.keyfile
208f5b1c8a1SJohn Marino : NULL, FORMAT_PEM, 1, passin, "private key");
209f5b1c8a1SJohn Marino if (!pkey) {
210f5b1c8a1SJohn Marino goto end;
211f5b1c8a1SJohn Marino }
212f5b1c8a1SJohn Marino spki = NETSCAPE_SPKI_new();
213f5b1c8a1SJohn Marino if (spkac_config.challenge)
214f5b1c8a1SJohn Marino ASN1_STRING_set(spki->spkac->challenge,
215f5b1c8a1SJohn Marino spkac_config.challenge,
216f5b1c8a1SJohn Marino (int) strlen(spkac_config.challenge));
217f5b1c8a1SJohn Marino NETSCAPE_SPKI_set_pubkey(spki, pkey);
218f5b1c8a1SJohn Marino NETSCAPE_SPKI_sign(spki, pkey, EVP_md5());
219f5b1c8a1SJohn Marino spkstr = NETSCAPE_SPKI_b64_encode(spki);
220f5b1c8a1SJohn Marino if (spkstr == NULL) {
221f5b1c8a1SJohn Marino BIO_printf(bio_err, "Error encoding SPKAC\n");
222f5b1c8a1SJohn Marino ERR_print_errors(bio_err);
223f5b1c8a1SJohn Marino goto end;
224f5b1c8a1SJohn Marino }
225f5b1c8a1SJohn Marino
226f5b1c8a1SJohn Marino if (spkac_config.outfile)
227f5b1c8a1SJohn Marino out = BIO_new_file(spkac_config.outfile, "w");
228f5b1c8a1SJohn Marino else
229f5b1c8a1SJohn Marino out = BIO_new_fp(stdout, BIO_NOCLOSE);
230f5b1c8a1SJohn Marino
231f5b1c8a1SJohn Marino if (!out) {
232f5b1c8a1SJohn Marino BIO_printf(bio_err, "Error opening output file\n");
233f5b1c8a1SJohn Marino ERR_print_errors(bio_err);
234f5b1c8a1SJohn Marino } else {
235f5b1c8a1SJohn Marino BIO_printf(out, "SPKAC=%s\n", spkstr);
236f5b1c8a1SJohn Marino ret = 0;
237f5b1c8a1SJohn Marino }
238f5b1c8a1SJohn Marino free(spkstr);
239f5b1c8a1SJohn Marino goto end;
240f5b1c8a1SJohn Marino }
241f5b1c8a1SJohn Marino if (spkac_config.infile)
242f5b1c8a1SJohn Marino in = BIO_new_file(spkac_config.infile, "r");
243f5b1c8a1SJohn Marino else
244f5b1c8a1SJohn Marino in = BIO_new_fp(stdin, BIO_NOCLOSE);
245f5b1c8a1SJohn Marino
246f5b1c8a1SJohn Marino if (!in) {
247f5b1c8a1SJohn Marino BIO_printf(bio_err, "Error opening input file\n");
248f5b1c8a1SJohn Marino ERR_print_errors(bio_err);
249f5b1c8a1SJohn Marino goto end;
250f5b1c8a1SJohn Marino }
251f5b1c8a1SJohn Marino conf = NCONF_new(NULL);
252f5b1c8a1SJohn Marino i = NCONF_load_bio(conf, in, NULL);
253f5b1c8a1SJohn Marino
254f5b1c8a1SJohn Marino if (!i) {
255f5b1c8a1SJohn Marino BIO_printf(bio_err, "Error parsing config file\n");
256f5b1c8a1SJohn Marino ERR_print_errors(bio_err);
257f5b1c8a1SJohn Marino goto end;
258f5b1c8a1SJohn Marino }
259f5b1c8a1SJohn Marino spkstr = NCONF_get_string(conf, spkac_config.spksect,
260f5b1c8a1SJohn Marino spkac_config.spkac);
261f5b1c8a1SJohn Marino
262f5b1c8a1SJohn Marino if (!spkstr) {
263f5b1c8a1SJohn Marino BIO_printf(bio_err, "Can't find SPKAC called \"%s\"\n",
264f5b1c8a1SJohn Marino spkac_config.spkac);
265f5b1c8a1SJohn Marino ERR_print_errors(bio_err);
266f5b1c8a1SJohn Marino goto end;
267f5b1c8a1SJohn Marino }
268f5b1c8a1SJohn Marino spki = NETSCAPE_SPKI_b64_decode(spkstr, -1);
269f5b1c8a1SJohn Marino
270f5b1c8a1SJohn Marino if (!spki) {
271f5b1c8a1SJohn Marino BIO_printf(bio_err, "Error loading SPKAC\n");
272f5b1c8a1SJohn Marino ERR_print_errors(bio_err);
273f5b1c8a1SJohn Marino goto end;
274f5b1c8a1SJohn Marino }
275f5b1c8a1SJohn Marino if (spkac_config.outfile)
276f5b1c8a1SJohn Marino out = BIO_new_file(spkac_config.outfile, "w");
277f5b1c8a1SJohn Marino else {
278f5b1c8a1SJohn Marino out = BIO_new_fp(stdout, BIO_NOCLOSE);
279f5b1c8a1SJohn Marino }
280f5b1c8a1SJohn Marino
281f5b1c8a1SJohn Marino if (!out) {
282f5b1c8a1SJohn Marino BIO_printf(bio_err, "Error opening output file\n");
283f5b1c8a1SJohn Marino ERR_print_errors(bio_err);
284f5b1c8a1SJohn Marino goto end;
285f5b1c8a1SJohn Marino }
286f5b1c8a1SJohn Marino if (!spkac_config.noout)
287f5b1c8a1SJohn Marino NETSCAPE_SPKI_print(out, spki);
288f5b1c8a1SJohn Marino pkey = NETSCAPE_SPKI_get_pubkey(spki);
289f5b1c8a1SJohn Marino if (spkac_config.verify) {
290f5b1c8a1SJohn Marino i = NETSCAPE_SPKI_verify(spki, pkey);
291f5b1c8a1SJohn Marino if (i > 0)
292f5b1c8a1SJohn Marino BIO_printf(bio_err, "Signature OK\n");
293f5b1c8a1SJohn Marino else {
294f5b1c8a1SJohn Marino BIO_printf(bio_err, "Signature Failure\n");
295f5b1c8a1SJohn Marino ERR_print_errors(bio_err);
296f5b1c8a1SJohn Marino goto end;
297f5b1c8a1SJohn Marino }
298f5b1c8a1SJohn Marino }
299f5b1c8a1SJohn Marino if (spkac_config.pubkey)
300f5b1c8a1SJohn Marino PEM_write_bio_PUBKEY(out, pkey);
301f5b1c8a1SJohn Marino
302f5b1c8a1SJohn Marino ret = 0;
303f5b1c8a1SJohn Marino
304f5b1c8a1SJohn Marino end:
305f5b1c8a1SJohn Marino NCONF_free(conf);
306f5b1c8a1SJohn Marino NETSCAPE_SPKI_free(spki);
307f5b1c8a1SJohn Marino BIO_free(in);
308f5b1c8a1SJohn Marino BIO_free_all(out);
309f5b1c8a1SJohn Marino EVP_PKEY_free(pkey);
310f5b1c8a1SJohn Marino free(passin);
311f5b1c8a1SJohn Marino
312f5b1c8a1SJohn Marino return (ret);
313f5b1c8a1SJohn Marino }
314