File indexing completed on 2025-02-16 04:24:04
0001 /* 0002 Copyright (C) 2004, 2006 Brad Hards <bradh@frogmouth.net> 0003 0004 Permission is hereby granted, free of charge, to any person obtaining a copy 0005 of this software and associated documentation files (the "Software"), to deal 0006 in the Software without restriction, including without limitation the rights 0007 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 0008 copies of the Software, and to permit persons to whom the Software is 0009 furnished to do so, subject to the following conditions: 0010 0011 The above copyright notice and this permission notice shall be included in 0012 all copies or substantial portions of the Software. 0013 0014 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 0015 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 0016 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 0017 AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 0018 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 0019 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 0020 */ 0021 0022 // QtCrypto has the declarations for all of QCA 0023 #include <QtCrypto> 0024 0025 #include <QCoreApplication> 0026 #include <QDebug> 0027 0028 #include <iostream> 0029 0030 #ifdef QT_STATICPLUGIN 0031 #include "import_plugins.h" 0032 #endif 0033 0034 int main(int argc, char **argv) 0035 { 0036 // the Initializer object sets things up, and 0037 // also does cleanup when it goes out of scope 0038 QCA::Initializer init; 0039 0040 QCoreApplication app(argc, argv); 0041 0042 qDebug() << "This example generates random numbers"; 0043 0044 int randInt; 0045 // This is the standard way to generate a random integer. 0046 randInt = QCA::Random::randomInt(); 0047 qDebug() << "A random number: " << randInt; 0048 0049 // If you wanted a random character (octet), you could 0050 // use something like: 0051 unsigned char randChar; 0052 randChar = QCA::Random::randomChar(); 0053 // It might not be printable, so this may not produce output 0054 std::cout << "A random character: " << randChar << std::endl; 0055 0056 QCA::SecureArray tenBytes(10); 0057 // If you need more random values, you may want to 0058 // get an array, as shown below. 0059 tenBytes = QCA::Random::randomArray(10); 0060 0061 // To make this viewable, we convert to hexadecimal. 0062 std::cout << "A random 10 byte array (in hex): "; 0063 std::cout << qPrintable(QCA::Hex().arrayToString(tenBytes)) << std::endl; 0064 0065 // Under some circumstances, you may want to create a 0066 // Random object, rather than a static public member function. 0067 // This isn't normally the easiest way, but it does work 0068 QCA::Random myRandomObject; 0069 randChar = myRandomObject.nextByte(); 0070 tenBytes = myRandomObject.nextBytes(10); 0071 return 0; 0072 }