QCA

hextest.cpp
1/*
2 Copyright (C) 2005 Brad Hards <bradh@frogmouth.net>
3
4 Permission is hereby granted, free of charge, to any person obtaining a copy
5 of this software and associated documentation files (the "Software"), to deal
6 in the Software without restriction, including without limitation the rights
7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 copies of the Software, and to permit persons to whom the Software is
9 furnished to do so, subject to the following conditions:
10
11 The above copyright notice and this permission notice shall be included in
12 all copies or substantial portions of the Software.
13
14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
18 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20*/
21
22// QtCrypto has the declarations for all of QCA
23#include <QtCrypto>
24
25#include <QCoreApplication>
26
27#include <iostream>
28
29#ifdef QT_STATICPLUGIN
30#include "import_plugins.h"
31#endif
32
33int main(int argc, char **argv)
34{
35 // the Initializer object sets things up, and
36 // also does cleanup when it goes out of scope
38
39 QCoreApplication app(argc, argv);
40
41 // we use the first argument as the data to encode / decode
42 // if an argument is provided. Use "hello" if no argument
43 QByteArray arg; // empty array
44 arg.append((argc >= 2) ? argv[1] : "hello");
45
46 // create our object, which does encoding by default
47 // QCA::Hex encoder(QCA::Encode); is equivalent
48 QCA::Hex encoder;
49
50 // You might prefer to use encoder.encode(); and have
51 // it return a QCA::SecureArray, depending on your needs
52 QString encoded = encoder.arrayToString(arg);
53
54 std::cout << arg.data() << " in hex encoding is ";
55 std::cout << encoded.toLatin1().data() << std::endl;
56
57 // This time, we'll create an object to decode hexadecimal.
58 // We could also have reused the existing object, calling
59 // clear(); and setup(QCA::Decode); on it.
60 QCA::Hex decoder(QCA::Decode);
61
62 // This time, we convert a QString into a QString
63 QString decoded = decoder.decodeString(encoded);
64
65 std::cout << encoded.toLatin1().data() << " decoded from hex is ";
66 std::cout << decoded.toLatin1().data() << std::endl;
67
68 return 0;
69}
Hexadecimal encoding / decoding.
Convenience method for initialising and cleaning up QCA.
Definition qca_core.h:660
QString arrayToString(const MemoryRegion &a)
Process an array in the "forward" direction, returning a QString.
void init(KXmlGuiWindow *window, KGameDifficulty *difficulty=nullptr)
@ Decode
Operate in the "reverse" direction; for example, decrypting.
Definition qca_core.h:143
QByteArray & append(QByteArrayView data)
char * data()
QByteArray toLatin1() const const
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