summaryrefslogtreecommitdiff
path: root/src/revocation/revocation.h
blob: 43efd5ff223d26461864fb414ea9098291ba4109 (plain)
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
/*
     This file is part of GNUnet.
     Copyright (C) 2013 GNUnet e.V.

     GNUnet is free software: you can redistribute it and/or modify it
     under the terms of the GNU Affero General Public License as published
     by the Free Software Foundation, either version 3 of the License,
     or (at your option) any later version.

     GNUnet 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
     Affero General Public License for more details.

     You should have received a copy of the GNU Affero General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>.

     SPDX-License-Identifier: AGPL3.0-or-later
 */

/**
 * @author Christian Grothoff
 * @file revocation/revocation.h
 * @brief messages for key revocation
 */
#ifndef REVOCATION_H
#define REVOCATION_H

#include "gnunet_util_lib.h"

GNUNET_NETWORK_STRUCT_BEGIN

/**
 * Query key revocation status.
 */
struct QueryMessage {
  /**
   * Type: #GNUNET_MESSAGE_TYPE_REVOCATION_QUERY
   */
  struct GNUNET_MessageHeader header;

  /**
   * For alignment.
   */
  uint32_t reserved GNUNET_PACKED;

  /**
   * Key to check.
   */
  struct GNUNET_CRYPTO_EcdsaPublicKey key;
};


/**
 * Key revocation response.
 */
struct QueryResponseMessage {
  /**
   * Type: #GNUNET_MESSAGE_TYPE_REVOCATION_QUERY_RESPONSE
   */
  struct GNUNET_MessageHeader header;

  /**
   * #GNUNET_NO if revoked, #GNUNET_YES if valid.
   */
  uint32_t is_valid GNUNET_PACKED;
};


/**
 * Revoke key.  These messages are exchanged between peers (during
 * flooding) but also sent by the client to the service.  When the
 * client sends it to the service, the message is answered by a
 * #GNUNET_MESSAGE_TYPE_REVOCATION_REVOKE_RESPONSE (which is just
 * in a `struct GNUNET_MessageHeader`.
 */
struct RevokeMessage {
  /**
   * Type: #GNUNET_MESSAGE_TYPE_REVOCATION_REVOKE
   */
  struct GNUNET_MessageHeader header;

  /**
   * For alignment.
   */
  uint32_t reserved GNUNET_PACKED;

  /**
   * Number that causes a hash collision with the @e public_key.
   */
  uint64_t proof_of_work GNUNET_PACKED;

  /**
   * Signature confirming revocation.
   */
  struct GNUNET_CRYPTO_EcdsaSignature signature;

  /**
   * Must have purpose #GNUNET_SIGNATURE_PURPOSE_REVOCATION,
   * size expands over the public key. (@deprecated)
   */
  struct GNUNET_CRYPTO_EccSignaturePurpose purpose;

  /**
   * Key to revoke.
   */
  struct GNUNET_CRYPTO_EcdsaPublicKey public_key;
};


/**
 * Key revocation response.
 */
struct RevocationResponseMessage {
  /**
   * Type: #GNUNET_MESSAGE_TYPE_REVOCATION_REVOKE_RESPONSE
   */
  struct GNUNET_MessageHeader header;

  /**
   * #GNUNET_NO if revocation failed for internal reasons (e.g. disk full)
   * #GNUNET_YES on success
   */
  uint32_t is_valid GNUNET_PACKED;
};


GNUNET_NETWORK_STRUCT_END



#endif