1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
|
/*
* Copyright (C) 2005 Jan Hutter, Martin Willi
* Copyright (C) 2002-2008 Andreas Steffen
* Hochschule fuer Technik Rapperswil, Switzerland
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
/**
* @defgroup pkcs7 pkcs7
* @{ @ingroup crypto
*/
#ifndef PKCS7_H_
#define PKCS7_H_
typedef struct pkcs7_t pkcs7_t;
#include <library.h>
#include <credentials/keys/private_key.h>
#include <crypto/pkcs9.h>
#include <crypto/crypters/crypter.h>
#include <utils/enumerator.h>
/**
* PKCS#7 contentInfo object.
*/
struct pkcs7_t {
/**
* Check if the PKCS#7 contentType is data
*
* @return TRUE if the contentType is data
*/
bool (*is_data) (pkcs7_t *this);
/**
* Check if the PKCS#7 contentType is signedData
*
* @return TRUE if the contentType is signedData
*/
bool (*is_signedData) (pkcs7_t *this);
/**
* Check if the PKCS#7 contentType is envelopedData
*
* @return TRUE if the contentType is envelopedData
*/
bool (*is_envelopedData) (pkcs7_t *this);
/**
* Parse a PKCS#7 data content.
*
* @return TRUE if parsing was successful
*/
bool (*parse_data) (pkcs7_t *this);
/**
* Parse a PKCS#7 signedData content. The contained PKCS#7 data is parsed
* and verified.
*
* @param cacert cacert used to verify the signature
* @return TRUE if parsing was successful
*/
bool (*parse_signedData) (pkcs7_t *this, certificate_t *cacert);
/**
* Parse a PKCS#7 envelopedData content.
*
* @param serialNumber serialNumber of the request
* @param key private key used to decrypt the symmetric key
* @return TRUE if parsing was successful
*/
bool (*parse_envelopedData) (pkcs7_t *this, chunk_t serialNumber,
private_key_t *key);
/**
* Returns the parsed data object
*
* @return chunk containing the data object
*/
chunk_t (*get_data) (pkcs7_t *this);
/**
* Returns the a DER-encoded contentInfo object
*
* @return chunk containing the contentInfo object
*/
chunk_t (*get_contentInfo) (pkcs7_t *this);
/**
* Create an enumerator for the certificates.
*
* @return enumerator for the certificates
*/
enumerator_t *(*create_certificate_enumerator) (pkcs7_t *this);
/**
* Add a certificate.
*
* @param cert certificate to be included (gets adopted)
*/
void (*set_certificate) (pkcs7_t *this, certificate_t *cert);
/**
* Add authenticated attributes.
*
* @param attributes attributes to be included (gets adopted)
*/
void (*set_attributes) (pkcs7_t *this, pkcs9_t *attributes);
/**
* Get attributes.
*
* @return attributes (internal data)
*/
pkcs9_t *(*get_attributes) (pkcs7_t *this);
/**
* Build a data object
*
* @return TRUE if build was successful
*/
bool (*build_data) (pkcs7_t *this);
/**
* Build an envelopedData object
*
* @param cert receivers's certificate
* @param alg encryption algorithm
* @param key_size key size to use
* @return TRUE if build was successful
*/
bool (*build_envelopedData) (pkcs7_t *this, certificate_t *cert,
encryption_algorithm_t alg, size_t key_size);
/**
* Build an signedData object
*
* @param key signer's private key
* @param alg digest algorithm used for signature
* @return TRUE if build was successful
*/
bool (*build_signedData) (pkcs7_t *this, private_key_t *key,
hash_algorithm_t alg);
/**
* Destroys the contentInfo object.
*/
void (*destroy) (pkcs7_t *this);
};
/**
* Read a PKCS#7 contentInfo object from a DER encoded chunk.
*
* @param chunk chunk containing DER encoded data
* @param level ASN.1 parsing start level
* @return created pkcs7_contentInfo object, or NULL if invalid.
*/
pkcs7_t *pkcs7_create_from_chunk(chunk_t chunk, u_int level);
/**
* Create a PKCS#7 contentInfo object
*
* @param data chunk containing data
* @return created pkcs7_contentInfo object.
*/
pkcs7_t *pkcs7_create_from_data(chunk_t data);
#endif /** PKCS7_H_ @}*/
|
