xref: /freebsd/crypto/openssl/apps/spkac.c (revision 9a14aa017b21c292740c00ee098195cd46642730)
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 /* -in arg	- input file - default stdin
77  * -out arg	- output file - default stdout
78  */
79 
80 int MAIN(int, char **);
81 
82 int MAIN(int argc, char **argv)
83 	{
84 	ENGINE *e = NULL;
85 	int i,badops=0, ret = 1;
86 	BIO *in = NULL,*out = NULL;
87 	int verify=0,noout=0,pubkey=0;
88 	char *infile = NULL,*outfile = NULL,*prog;
89 	char *passargin = NULL, *passin = NULL;
90 	const char *spkac = "SPKAC", *spksect = "default";
91 	char *spkstr = NULL;
92 	char *challenge = NULL, *keyfile = NULL;
93 	CONF *conf = NULL;
94 	NETSCAPE_SPKI *spki = NULL;
95 	EVP_PKEY *pkey = NULL;
96 #ifndef OPENSSL_NO_ENGINE
97 	char *engine=NULL;
98 #endif
99 
100 	apps_startup();
101 
102 	if (!bio_err) bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
103 
104 	if (!load_config(bio_err, NULL))
105 		goto end;
106 
107 	prog=argv[0];
108 	argc--;
109 	argv++;
110 	while (argc >= 1)
111 		{
112 		if (strcmp(*argv,"-in") == 0)
113 			{
114 			if (--argc < 1) goto bad;
115 			infile= *(++argv);
116 			}
117 		else if (strcmp(*argv,"-out") == 0)
118 			{
119 			if (--argc < 1) goto bad;
120 			outfile= *(++argv);
121 			}
122 		else if (strcmp(*argv,"-passin") == 0)
123 			{
124 			if (--argc < 1) goto bad;
125 			passargin= *(++argv);
126 			}
127 		else if (strcmp(*argv,"-key") == 0)
128 			{
129 			if (--argc < 1) goto bad;
130 			keyfile= *(++argv);
131 			}
132 		else if (strcmp(*argv,"-challenge") == 0)
133 			{
134 			if (--argc < 1) goto bad;
135 			challenge= *(++argv);
136 			}
137 		else if (strcmp(*argv,"-spkac") == 0)
138 			{
139 			if (--argc < 1) goto bad;
140 			spkac= *(++argv);
141 			}
142 		else if (strcmp(*argv,"-spksect") == 0)
143 			{
144 			if (--argc < 1) goto bad;
145 			spksect= *(++argv);
146 			}
147 #ifndef OPENSSL_NO_ENGINE
148 		else if (strcmp(*argv,"-engine") == 0)
149 			{
150 			if (--argc < 1) goto bad;
151 			engine= *(++argv);
152 			}
153 #endif
154 		else if (strcmp(*argv,"-noout") == 0)
155 			noout=1;
156 		else if (strcmp(*argv,"-pubkey") == 0)
157 			pubkey=1;
158 		else if (strcmp(*argv,"-verify") == 0)
159 			verify=1;
160 		else badops = 1;
161 		argc--;
162 		argv++;
163 		}
164 
165 	if (badops)
166 		{
167 bad:
168 		BIO_printf(bio_err,"%s [options]\n",prog);
169 		BIO_printf(bio_err,"where options are\n");
170 		BIO_printf(bio_err," -in arg        input file\n");
171 		BIO_printf(bio_err," -out arg       output file\n");
172 		BIO_printf(bio_err," -key arg       create SPKAC using private key\n");
173 		BIO_printf(bio_err," -passin arg    input file pass phrase source\n");
174 		BIO_printf(bio_err," -challenge arg challenge string\n");
175 		BIO_printf(bio_err," -spkac arg     alternative SPKAC name\n");
176 		BIO_printf(bio_err," -noout         don't print SPKAC\n");
177 		BIO_printf(bio_err," -pubkey        output public key\n");
178 		BIO_printf(bio_err," -verify        verify SPKAC signature\n");
179 #ifndef OPENSSL_NO_ENGINE
180 		BIO_printf(bio_err," -engine e      use engine e, possibly a hardware device.\n");
181 #endif
182 		goto end;
183 		}
184 
185 	ERR_load_crypto_strings();
186 	if(!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
187 		BIO_printf(bio_err, "Error getting password\n");
188 		goto end;
189 	}
190 
191 #ifndef OPENSSL_NO_ENGINE
192         e = setup_engine(bio_err, engine, 0);
193 #endif
194 
195 	if(keyfile) {
196 		pkey = load_key(bio_err,
197 				strcmp(keyfile, "-") ? keyfile : NULL,
198 				FORMAT_PEM, 1, passin, e, "private key");
199 		if(!pkey) {
200 			goto end;
201 		}
202 		spki = NETSCAPE_SPKI_new();
203 		if(challenge) ASN1_STRING_set(spki->spkac->challenge,
204 						 challenge, (int)strlen(challenge));
205 		NETSCAPE_SPKI_set_pubkey(spki, pkey);
206 		NETSCAPE_SPKI_sign(spki, pkey, EVP_md5());
207 		spkstr = NETSCAPE_SPKI_b64_encode(spki);
208 
209 		if (outfile) out = BIO_new_file(outfile, "w");
210 		else {
211 			out = BIO_new_fp(stdout, BIO_NOCLOSE);
212 #ifdef OPENSSL_SYS_VMS
213 			{
214 			    BIO *tmpbio = BIO_new(BIO_f_linebuffer());
215 			    out = BIO_push(tmpbio, out);
216 			}
217 #endif
218 		}
219 
220 		if(!out) {
221 			BIO_printf(bio_err, "Error opening output file\n");
222 			ERR_print_errors(bio_err);
223 			goto end;
224 		}
225 		BIO_printf(out, "SPKAC=%s\n", spkstr);
226 		OPENSSL_free(spkstr);
227 		ret = 0;
228 		goto end;
229 	}
230 
231 
232 
233 	if (infile) in = BIO_new_file(infile, "r");
234 	else in = BIO_new_fp(stdin, BIO_NOCLOSE);
235 
236 	if(!in) {
237 		BIO_printf(bio_err, "Error opening input file\n");
238 		ERR_print_errors(bio_err);
239 		goto end;
240 	}
241 
242 	conf = NCONF_new(NULL);
243 	i = NCONF_load_bio(conf, in, NULL);
244 
245 	if(!i) {
246 		BIO_printf(bio_err, "Error parsing config file\n");
247 		ERR_print_errors(bio_err);
248 		goto end;
249 	}
250 
251 	spkstr = NCONF_get_string(conf, spksect, spkac);
252 
253 	if(!spkstr) {
254 		BIO_printf(bio_err, "Can't find SPKAC called \"%s\"\n", spkac);
255 		ERR_print_errors(bio_err);
256 		goto end;
257 	}
258 
259 	spki = NETSCAPE_SPKI_b64_decode(spkstr, -1);
260 
261 	if(!spki) {
262 		BIO_printf(bio_err, "Error loading SPKAC\n");
263 		ERR_print_errors(bio_err);
264 		goto end;
265 	}
266 
267 	if (outfile) 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) NETSCAPE_SPKI_print(out, spki);
285 	pkey = NETSCAPE_SPKI_get_pubkey(spki);
286 	if(verify) {
287 		i = NETSCAPE_SPKI_verify(spki, pkey);
288 		if (i > 0) BIO_printf(bio_err, "Signature OK\n");
289 		else {
290 			BIO_printf(bio_err, "Signature Failure\n");
291 			ERR_print_errors(bio_err);
292 			goto end;
293 		}
294 	}
295 	if(pubkey) PEM_write_bio_PUBKEY(out, pkey);
296 
297 	ret = 0;
298 
299 end:
300 	NCONF_free(conf);
301 	NETSCAPE_SPKI_free(spki);
302 	BIO_free(in);
303 	BIO_free_all(out);
304 	EVP_PKEY_free(pkey);
305 	if(passin) OPENSSL_free(passin);
306 	apps_shutdown();
307 	OPENSSL_EXIT(ret);
308 	}
309