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authorryker <>1998-10-05 20:13:16 +0000
committerryker <>1998-10-05 20:13:16 +0000
commit9e43e2ac1373d5be5c6500c1bc3b1dd6ee9584b4 (patch)
tree51ff319f3510104698e541954d10ad98f9125f36 /src/lib/libcrypto/x509v3/v3_ku.c
parent9e77c62555877f9a64805c49d0dcd7dbfbb40f4e (diff)
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Import of SSLeay-0.9.0b with RSA and IDEA stubbed + OpenBSD build
functionality for shared libs. Note that routines such as sslv2_init and friends that use RSA will not work due to lack of RSA in this library. Needs documentation and help from ports for easy upgrade to full functionality where legally possible.
Diffstat (limited to 'src/lib/libcrypto/x509v3/v3_ku.c')
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1 files changed, 318 insertions, 0 deletions
diff --git a/src/lib/libcrypto/x509v3/v3_ku.c b/src/lib/libcrypto/x509v3/v3_ku.c
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1/* crypto/x509v3/v3_ku.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#include <stdio.h>
60#include <ctype.h>
61#include "stack.h"
62#include "cryptlib.h"
63#include "bio.h"
64#include "asn1.h"
65#include "objects.h"
66#include "x509.h"
67
68X509_EXTENSION_METHOD X509v3_key_usage_method=
69 {
70 NID_key_usage,
71 ku_clear,
72 ex_get_bool,
73 ex_set_bool,
74 NULL,
75 NULL,
76 NULL,
77 NULL,
78 ku_a2i,
79 ku_i2a,
80 };
81
82static void ku_clear(a)
83X509_EXTENSION *a;
84 {
85 }
86
87static int ku_expand(a)
88X509_EXTENSION *a;
89 {
90 ASN1_BIT_STRING *bs;
91
92 if (a->argp == NULL)
93 {
94 bs=X509v3_unpack_string(NULL,V_ASN1_BIT_STRING,value);
95 if (bs == NULL) return(0);
96 a->argp=(char *)bs;
97 a->ex_free=ASN1_STRING_free;
98 }
99 return(1);
100 }
101
102static int ku_get_bool(a,num)
103X509_EXTENSION *a;
104int num;
105 {
106 int ret;
107 ASN1_BIT_STRING *bs;
108
109 if ((a->argp == NULL) && !ku_expand(a))
110 return(-1);
111 bs=(ASN1_BIT_STRING *)a->argp;
112 ret=ASN1_BIT_STRING_get_bit(bs,num);
113 return(ret);
114 }
115
116static int ku_set_bool(a,num,value)
117X509_EXTENSION *a;
118int num;
119int value;
120 {
121 ASN1_BIT_STRING *a;
122
123 if ((a->argp == NULL) && !ku_expand(a))
124 return(0);
125 bs=(ASN1_BIT_STRING *)a->argp;
126 ret=ASN1_BIT_STRING_set_bit(bs,num,value);
127 }
128
129static int ku_a2i(bio,a,buf,len)
130BIO *bio;
131X509_EXTENSION *a;
132char *buf;
133int len;
134 {
135 get token
136 }
137
138static char ku_names[X509v3_N_KU_NUM]={
139 X509v3_S_KU_digitalSignature,
140 X509v3_S_KU_nonRepudiation,
141 X509v3_S_KU_keyEncipherment,
142 X509v3_S_KU_dataEncipherment,
143 X509v3_S_KU_keyAgreement,
144 X509v3_S_KU_keyCertSign,
145 X509v3_S_KU_cRLSign,
146 X509v3_S_KU_encipherOnly,
147 X509v3_S_KU_decipherOnly,
148 };
149
150static int ku_i2a(bio,a);
151BIO *bio;
152X509_EXTENSION *a;
153 {
154 int i,first=1;
155 char *c;
156
157 for (i=0; i<X509v3_N_KU_NUM; i++)
158 {
159 if (ku_get_bool(a,i) > 0)
160 {
161 BIO_printf(bio,"%s%s",((first)?"":" "),ku_names[i]);
162 first=0;
163 }
164 }
165 }
166
167/***********************/
168
169int X509v3_get_key_usage(x,ret)
170STACK *x;
171unsigned long *ret;
172 {
173 X509_EXTENSION *ext;
174 ASN1_STRING *st;
175 char *p;
176 int i;
177
178 i=X509_get_ext_by_NID(x,NID_key_usage,-1);
179 if (i < 0) return(X509v3_KU_UNDEF);
180 ext=X509_get_ext(x,i);
181 st=X509v3_unpack_string(NULL,V_ASN1_BIT_STRING,
182 X509_EXTENSION_get_data(X509_get_ext(x,i)));
183
184 p=ASN1_STRING_data(st);
185 if (ASN1_STRING_length(st) == 1)
186 i=p[0];
187 else if (ASN1_STRING_length(st) == 2)
188 i=p[0]|(p[1]<<8);
189 else
190 i=0;
191 return(i);
192 }
193
194static struct
195 {
196 char *name;
197 unsigned int value;
198 } key_usage_data[] ={
199 {"digitalSignature", X509v3_KU_DIGITAL_SIGNATURE},
200 {"nonRepudiation", X509v3_KU_NON_REPUDIATION},
201 {"keyEncipherment", X509v3_KU_KEY_ENCIPHERMENT},
202 {"dataEncipherment", X509v3_KU_DATA_ENCIPHERMENT},
203 {"keyAgreement", X509v3_KU_KEY_AGREEMENT},
204 {"keyCertSign", X509v3_KU_KEY_CERT_SIGN},
205 {"cRLSign", X509v3_KU_CRL_SIGN},
206 {"encipherOnly", X509v3_KU_ENCIPHER_ONLY},
207 {"decipherOnly", X509v3_KU_DECIPHER_ONLY},
208 {NULL,0},
209 };
210
211#if 0
212static int a2i_key_usage(x,str,len)
213X509 *x;
214char *str;
215int len;
216 {
217 return(X509v3_set_key_usage(x,a2i_X509v3_key_usage(str)));
218 }
219
220static int i2a_key_usage(bp,x)
221BIO *bp;
222X509 *x;
223 {
224 return(i2a_X509v3_key_usage(bp,X509v3_get_key_usage(x)));
225 }
226#endif
227
228int i2a_X509v3_key_usage(bp,use)
229BIO *bp;
230unsigned int use;
231 {
232 int i=0,first=1;
233
234 for (;;)
235 {
236 if (use | key_usage_data[i].value)
237 {
238 BIO_printf(bp,"%s%s",((first)?"":" "),
239 key_usage_data[i].name);
240 first=0;
241 }
242 }
243 return(1);
244 }
245
246unsigned int a2i_X509v3_key_usage(p)
247char *p;
248 {
249 unsigned int ret=0;
250 char *q,*s;
251 int i,n;
252
253 q=p;
254 for (;;)
255 {
256 while ((*q != '\0') && isalnum(*q))
257 q++;
258 if (*q == '\0') break;
259 s=q++;
260 while (isalnum(*q))
261 q++;
262 n=q-s;
263 i=0;
264 for (;;)
265 {
266 if (strncmp(key_usage_data[i].name,s,n) == 0)
267 {
268 ret|=key_usage_data[i].value;
269 break;
270 }
271 i++;
272 if (key_usage_data[i].name == NULL)
273 return(X509v3_KU_UNDEF);
274 }
275 }
276 return(ret);
277 }
278
279int X509v3_set_key_usage(x,use)
280X509 *x;
281unsigned int use;
282 {
283 ASN1_OCTET_STRING *os;
284 X509_EXTENSION *ext;
285 int i;
286 unsigned char data[4];
287
288 i=X509_get_ext_by_NID(x,NID_key_usage,-1);
289 if (i < 0)
290 {
291 i=X509_get_ext_count(x)+1;
292 if ((ext=X509_EXTENSION_new()) == NULL) return(0);
293 if (!X509_add_ext(x,ext,i))
294 {
295 X509_EXTENSION_free(ext);
296 return(0);
297 }
298 }
299 else
300 ext=X509_get_ext(x,i);
301
302 /* fill in 'ext' */
303 os=X509_EXTENSION_get_data(ext);
304
305 i=0;
306 if (use > 0)
307 {
308 i=1;
309 data[0]=use&0xff;
310 }
311 if (use > 0xff)
312 {
313 i=2;
314 data[1]=(use>>8)&0xff;
315 }
316 return((X509v3_pack_string(&os,V_ASN1_BIT_STRING,data,i) == NULL)?0:1);
317 }
318