File indexing completed on 2024-04-28 04:43:38

0001 /*
0002  Copyright (C) 2004 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/QtCrypto has the declarations for all of QCA
0023 #include <QtCrypto>
0024 
0025 #include <QCoreApplication>
0026 
0027 #include <cstdio>
0028 
0029 #ifdef QT_STATICPLUGIN
0030 #include "import_plugins.h"
0031 #endif
0032 
0033 int main(int argc, char **argv)
0034 {
0035     // the Initializer object sets things up, and
0036     // also does cleanup when it goes out of scope
0037     QCA::Initializer init;
0038 
0039     QCoreApplication app(argc, argv);
0040 
0041     // we use the first argument if provided, or
0042     // use "hello" if no arguments
0043     QCA::SecureArray arg = (argc >= 2) ? argv[1] : "hello";
0044 
0045     // must always check that an algorithm is supported before using it
0046     if (!QCA::isSupported("sha1"))
0047         printf("SHA1 not supported!\n");
0048     else {
0049         // this shows the "all in one" approach
0050         QString result = QCA::Hash(QStringLiteral("sha1")).hashToString(arg);
0051         printf("sha1(\"%s\") = [%s]\n", arg.data(), qPrintable(result));
0052     }
0053 
0054     // must always check that an algorithm is supported before using it
0055     if (!QCA::isSupported("md5"))
0056         printf("MD5 not supported!\n");
0057     else {
0058         // this shows the incremental approach. Naturally
0059         // for this simple job, we could use the "all in one"
0060         // approach - this is an example, after all :-)
0061         QCA::SecureArray part1(arg.toByteArray().left(3)); // three chars - "hel"
0062         QCA::SecureArray part2(arg.toByteArray().mid(3));  // the rest - "lo"
0063 
0064         // create the required object.
0065         QCA::Hash hashObject(QStringLiteral("md5"));
0066         // we split it into two parts to show incremental update
0067         hashObject.update(part1);
0068         hashObject.update(part2);
0069         // no more updates after calling final.
0070         QCA::SecureArray resultArray = hashObject.final();
0071         // convert the result into printable hexadecimal.
0072         QString result = QCA::arrayToHex(resultArray.toByteArray());
0073         printf("md5(\"%s\") = [%s]\n", arg.data(), qPrintable(result));
0074     }
0075 
0076     return 0;
0077 }