-
Notifications
You must be signed in to change notification settings - Fork 15
/
cryptoutils.h
71 lines (59 loc) · 2.48 KB
/
cryptoutils.h
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
/*
* Copyright 2013 Vitaly Valtman
* Copyright 2014 Canonical Ltd.
* Authors:
* Roberto Mier
* Tiago Herrmann
*
* 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; version 3.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef CRYPTOUTILS_H
#define CRYPTOUTILS_H
#include <QObject>
#include "core/outboundpkt.h"
#include <openssl/bn.h>
#include <openssl/aes.h>
class CryptoUtils : public QObject
{
Q_OBJECT
public:
CryptoUtils(Settings *settings);
virtual ~CryptoUtils();
CryptoUtils(const CryptoUtils &);
CryptoUtils &operator=(const CryptoUtils &);
qint32 encryptPacketBuffer(OutboundPkt &p, void *encryptBuffer);
qint32 encryptPacketBufferAESUnAuth(const char serverNonce[16], const char hiddenClientNonce[32], OutboundPkt &p, void *encryptBuffer);
#if OPENSSL_VERSION_NUMBER < 0x10100000L
qint32 padRsaEncrypt(char *from, qint32 from_len, char *to, qint32 size, BIGNUM *N, BIGNUM *E);
#else
qint32 padRsaEncrypt(char *from, qint32 from_len, char *to, qint32 size, const BIGNUM *N, const BIGNUM *E);
#endif
void initAESAuth (char authKey[192], char msgKey[16], qint32 encrypt);
void initAESUnAuth(const char serverNonce[16], const char hiddenClientNonce[32], qint32 encrypt);
qint32 padAESDecrypt(const char *from, qint32 fromLen, char *to, qint32 size);
qint32 padAESEncrypt(const char *from, qint32 fromLen, char *to, qint32 size);
qint32 checkPrime(BIGNUM *p);
qint32 checkDHParams(BIGNUM *p, qint32 g);
qint32 checkCalculatedParams(const BIGNUM *gAOrB, const BIGNUM *g, const BIGNUM *p);
qint32 BNModExp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, const BIGNUM *m);
QByteArray encryptFilePart(const QByteArray &partBytes, uchar *key, uchar *iv);
QByteArray decryptFilePart(const QByteArray &partBytes, uchar *key, uchar *iv);
qint32 computeKeyFingerprint(const QByteArray &key, const QByteArray &iv);
private:
Settings *mSettings;
BN_CTX *BN_ctx;
uchar aes_key_raw[32], aes_iv[32];
AES_KEY aes_key;
};
#endif // CRYPTOUTILS_H