QCA

hextest.cpp
1 /*
2  Copyright (C) 2005 Brad Hards <[email protected]>
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 
33 int 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 }
QString arrayToString(const MemoryRegion &a)
Process an array in the "forward" direction, returning a QString.
QByteArray & append(char ch)
QCA_EXPORT void init()
Initialise QCA.
QByteArray toLatin1() const const
char * data()
Operate in the "reverse" direction; for example, decrypting.
Definition: qca_core.h:143
Convenience method for initialising and cleaning up QCA.
Definition: qca_core.h:659
Hexadecimal encoding / decoding.
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