2 Copyright (C) 2013-2015 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef LIBDCP_DECRYPTED_KDM_H
21 #define LIBDCP_DECRYPTED_KDM_H
23 /** @file src/decrypted_kdm.h
24 * @brief DecryptedKDM class.
28 #include "local_time.h"
29 #include "decrypted_kdm_key.h"
31 #include "certificate.h"
32 #include <boost/filesystem.hpp>
36 class DecryptedKDMKey;
38 class CertificateChain;
41 /** @class DecryptedKDM
42 * @brief A decrypted KDM.
44 * This is a KDM that has either been decrypted by a target private key, or one which
45 * has been created (by some other means) ready for encryption later.
47 * A DecryptedKDM object can be created either from an EncryptedKDM and private key file,
48 * or from the details of the assets that the KDM should protect.
53 /** @param kdm Encrypted KDM.
54 * @param private_key Private key as a PEM-format string.
56 DecryptedKDM (EncryptedKDM const & kdm, std::string private_key);
58 /** Create an empty DecryptedKDM. After creation you must call
59 * add_key() to add each key that you want in the KDM.
61 * @param not_valid_before Start time for the KDM.
62 * @param not_valid_after End time for the KDM.
65 LocalTime not_valid_before,
66 LocalTime not_valid_after,
67 std::string annotation_text,
68 std::string content_title_text,
69 std::string issue_date
72 /** Create a DecryptedKDM by taking a CPL and setting up to encrypt each of its
73 * assets with the same symmetric key.
75 * @param cpl CPL that the keys are for.
76 * @param key Key that was used to encrypt the assets.
77 * @param not_valid_before Start time for the KDM.
78 * @param not_valid_after End time for the KDM.
81 boost::shared_ptr<const CPL> cpl,
83 LocalTime not_valid_before,
84 LocalTime not_valid_after,
85 std::string annotation_text,
86 std::string content_title_text,
87 std::string issue_date
90 /** Encrypt this KDM's keys and sign the whole KDM.
91 * @param signer Chain to sign with.
92 * @param recipient Certificate of the projector/server which should receive this KDM's keys.
93 * @param trusted_devices Extra trusted devices which should be written to the KDM (recipient will be written
94 * as a trusted device automatically and does not need to be included in this list).
95 * @param formulation Formulation to use for the encrypted KDM.
96 * @return Encrypted KDM.
98 EncryptedKDM encrypt (
99 boost::shared_ptr<const CertificateChain> signer,
100 Certificate recipient,
101 std::vector<Certificate> trusted_devices,
102 Formulation formulation
105 void add_key (std::string type, std::string key_id, Key key, std::string cpl_id);
106 void add_key (DecryptedKDMKey key);
108 /** @return This KDM's (decrypted) keys, which could be used to decrypt assets. */
109 std::list<DecryptedKDMKey> keys () const {
113 std::string annotation_text () const {
114 return _annotation_text;
117 std::string content_title_text () const {
118 return _content_title_text;
121 std::string issue_date () const {
126 LocalTime _not_valid_before;
127 LocalTime _not_valid_after;
128 std::string _annotation_text;
129 std::string _content_title_text;
130 std::string _issue_date;
131 std::list<DecryptedKDMKey> _keys;