1 | /* |
2 | Copyright (C) 2004, 2006 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 | #include <QDebug> |
27 | |
28 | #include <iostream> |
29 | |
30 | #ifdef QT_STATICPLUGIN |
31 | #include "import_plugins.h" |
32 | #endif |
33 | |
34 | int main(int argc, char **argv) |
35 | { |
36 | // the Initializer object sets things up, and |
37 | // also does cleanup when it goes out of scope |
38 | QCA::Initializer init; |
39 | |
40 | QCoreApplication app(argc, argv); |
41 | |
42 | qDebug() << "This example generates random numbers" ; |
43 | |
44 | int randInt; |
45 | // This is the standard way to generate a random integer. |
46 | randInt = QCA::Random::randomInt(); |
47 | qDebug() << "A random number: " << randInt; |
48 | |
49 | // If you wanted a random character (octet), you could |
50 | // use something like: |
51 | unsigned char randChar; |
52 | randChar = QCA::Random::randomChar(); |
53 | // It might not be printable, so this may not produce output |
54 | std::cout << "A random character: " << randChar << std::endl; |
55 | |
56 | QCA::SecureArray tenBytes(10); |
57 | // If you need more random values, you may want to |
58 | // get an array, as shown below. |
59 | tenBytes = QCA::Random::randomArray(size: 10); |
60 | |
61 | // To make this viewable, we convert to hexadecimal. |
62 | std::cout << "A random 10 byte array (in hex): " ; |
63 | std::cout << qPrintable(QCA::Hex().arrayToString(tenBytes)) << std::endl; |
64 | |
65 | // Under some circumstances, you may want to create a |
66 | // Random object, rather than a static public member function. |
67 | // This isn't normally the easiest way, but it does work |
68 | QCA::Random myRandomObject; |
69 | randChar = myRandomObject.nextByte(); |
70 | tenBytes = myRandomObject.nextBytes(size: 10); |
71 | return 0; |
72 | } |
73 | |