2 * Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 /* $Id: der.h,v 1.22 2001/09/27 16:20:35 assar Exp $ */
41 typedef enum {UNIV = 0, APPL = 1, CONTEXT = 2 , PRIVATE = 3} Der_class;
43 typedef enum {PRIM = 0, CONS = 1} Der_type;
57 UT_PrintableString = 19,
60 UT_GeneralizedTime = 24,
61 UT_VisibleString = 26,
65 #define ASN1_INDEFINITE 0xdce0deed
68 time_t timegm (struct tm *);
71 int time2generalizedtime (time_t t, octet_string *s);
73 int der_get_int (const unsigned char *p, size_t len, int *ret, size_t *size);
74 int der_get_length (const unsigned char *p, size_t len,
75 size_t *val, size_t *size);
76 int der_get_general_string (const unsigned char *p, size_t len,
77 general_string *str, size_t *size);
78 int der_get_octet_string (const unsigned char *p, size_t len,
79 octet_string *data, size_t *size);
80 int der_get_oid (const unsigned char *p, size_t len,
81 oid *data, size_t *size);
82 int der_get_tag (const unsigned char *p, size_t len,
83 Der_class *class, Der_type *type,
84 int *tag, size_t *size);
86 int der_match_tag (const unsigned char *p, size_t len,
87 Der_class class, Der_type type,
88 int tag, size_t *size);
89 int der_match_tag_and_length (const unsigned char *p, size_t len,
90 Der_class class, Der_type type, int tag,
91 size_t *length_ret, size_t *size);
93 int decode_integer (const unsigned char*, size_t, int*, size_t*);
94 int decode_unsigned (const unsigned char*, size_t, unsigned*, size_t*);
95 int decode_enumerated (const unsigned char*, size_t, unsigned*, size_t*);
96 int decode_general_string (const unsigned char*, size_t,
97 general_string*, size_t*);
98 int decode_oid (const unsigned char *p, size_t len,
99 oid *k, size_t *size);
100 int decode_octet_string (const unsigned char*, size_t, octet_string*, size_t*);
101 int decode_generalized_time (const unsigned char*, size_t, time_t*, size_t*);
103 int der_put_int (unsigned char *p, size_t len, int val, size_t*);
104 int der_put_length (unsigned char *p, size_t len, size_t val, size_t*);
105 int der_put_general_string (unsigned char *p, size_t len,
106 const general_string *str, size_t*);
107 int der_put_octet_string (unsigned char *p, size_t len,
108 const octet_string *data, size_t*);
109 int der_put_oid (unsigned char *p, size_t len,
110 const oid *data, size_t *size);
111 int der_put_tag (unsigned char *p, size_t len, Der_class class, Der_type type,
113 int der_put_length_and_tag (unsigned char*, size_t, size_t,
114 Der_class, Der_type, int, size_t*);
116 int encode_integer (unsigned char *p, size_t len,
117 const int *data, size_t*);
118 int encode_unsigned (unsigned char *p, size_t len,
119 const unsigned *data, size_t*);
120 int encode_enumerated (unsigned char *p, size_t len,
121 const unsigned *data, size_t*);
122 int encode_general_string (unsigned char *p, size_t len,
123 const general_string *data, size_t*);
124 int encode_octet_string (unsigned char *p, size_t len,
125 const octet_string *k, size_t*);
126 int encode_oid (unsigned char *p, size_t len,
127 const oid *k, size_t*);
128 int encode_generalized_time (unsigned char *p, size_t len,
129 const time_t *t, size_t*);
131 void free_integer (int *num);
132 void free_general_string (general_string *str);
133 void free_octet_string (octet_string *k);
134 void free_oid (oid *k);
135 void free_generalized_time (time_t *t);
137 size_t length_len (size_t len);
138 size_t length_integer (const int *data);
139 size_t length_unsigned (const unsigned *data);
140 size_t length_enumerated (const unsigned *data);
141 size_t length_general_string (const general_string *data);
142 size_t length_octet_string (const octet_string *k);
143 size_t length_oid (const oid *k);
144 size_t length_generalized_time (const time_t *t);
146 int copy_general_string (const general_string *from, general_string *to);
147 int copy_octet_string (const octet_string *from, octet_string *to);
148 int copy_oid (const oid *from, oid *to);
150 int fix_dce(size_t reallen, size_t *len);
152 #endif /* __DER_H__ */