Dooble
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dooble_cryptography.h
1/*
2** Copyright (c) 2008 - present, Alexis Megas.
3** All rights reserved.
4**
5** Redistribution and use in source and binary forms, with or without
6** modification, are permitted provided that the following conditions
7** are met:
8** 1. Redistributions of source code must retain the above copyright
9** notice, this list of conditions and the following disclaimer.
10** 2. Redistributions in binary form must reproduce the above copyright
11** notice, this list of conditions and the following disclaimer in the
12** documentation and/or other materials provided with the distribution.
13** 3. The name of the author may not be used to endorse or promote products
14** derived from Dooble without specific prior written permission.
15**
16** DOOBLE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25** DOOBLE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26*/
27
28#ifndef dooble_cryptography_h
29#define dooble_cryptography_h
30
31#include <QByteArray>
32#include <QObject>
33#include <QPair>
34
35class dooble_cryptography: public QObject
36{
37 Q_OBJECT
38
39 public:
40 enum class HashTypes
41 {
42 KECCAK_512,
43 SHA3_512
44 };
45
46 static int s_authentication_key_length;
47 static int s_encryption_key_length;
48 dooble_cryptography(const QByteArray &authentication_key,
49 const QByteArray &encryption_key,
50 const QString &block_cipher_type,
51 const QString &hash_type);
52 dooble_cryptography(const QString &block_cipher_type,
53 const QString &hash_type);
55 QByteArray encrypt_then_mac(const QByteArray &data) const;
56 QByteArray hmac(const QByteArray &message) const;
57 QByteArray hmac(const QString &message) const;
58 QByteArray mac_then_decrypt(const QByteArray &data) const;
59 QPair<QByteArray, QByteArray> keys(void) const;
60 bool as_plaintext(void) const;
61 bool authenticated(void) const;
62 static bool memcmp(const QByteArray &a, const QByteArray &b);
63 static void memzero(QByteArray &bytes);
64 static void memzero(QString &text);
65 void authenticate(const QByteArray &salt,
66 const QByteArray &salted_password,
67 const QString &password);
68 void set_authenticated(bool state);
69 void set_block_cipher_type(const QString &block_cipher_type);
70 void set_hash_type(const QString &hash_type);
71 void set_keys(const QByteArray &authentication_key,
72 const QByteArray &encryption_key);
73
74 private:
75 QByteArray m_authentication_key;
76 QByteArray m_encryption_key;
77 QString m_block_cipher_type;
78 bool m_as_plaintext;
79 bool m_authenticated;
80 dooble_cryptography::HashTypes m_hash_type;
81};
82
83#endif
Definition dooble_cryptography.h:36