qca

hashtest.cpp

00001 /*
00002  Copyright (C) 2004 Brad Hards <bradh@frogmouth.net>
00003 
00004  Permission is hereby granted, free of charge, to any person obtaining a copy
00005  of this software and associated documentation files (the "Software"), to deal
00006  in the Software without restriction, including without limitation the rights
00007  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00008  copies of the Software, and to permit persons to whom the Software is
00009  furnished to do so, subject to the following conditions:
00010 
00011  The above copyright notice and this permission notice shall be included in
00012  all copies or substantial portions of the Software.
00013 
00014  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00015  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00016  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
00017  AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
00018  AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
00019  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00020 */
00021 
00022 // QtCrypto/QtCrypto has the declarations for all of QCA
00023 #include <QtCrypto>
00024 
00025 #include <QCoreApplication>
00026 
00027 #include <stdio.h>
00028 
00029 int main(int argc, char **argv)
00030 {
00031     // the Initializer object sets things up, and
00032     // also does cleanup when it goes out of scope
00033     QCA::Initializer init;
00034 
00035     QCoreApplication app(argc, argv);
00036 
00037     // we use the first argument if provided, or
00038     // use "hello" if no arguments
00039     QCA::SecureArray arg = (argc >= 2) ? argv[1] : "hello";
00040 
00041     // must always check that an algorithm is supported before using it
00042     if( !QCA::isSupported("sha1") )
00043         printf("SHA1 not supported!\n");
00044     else {
00045         // this shows the "all in one" approach
00046         QString result = QCA::Hash("sha1").hashToString(arg);
00047         printf("sha1(\"%s\") = [%s]\n", arg.data(), result.toAscii().data());
00048     }
00049 
00050     // must always check that an algorithm is supported before using it
00051     if( !QCA::isSupported("md5") )
00052         printf("MD5 not supported!\n");
00053     else {
00054         // this shows the incremental approach. Naturally
00055         // for this simple job, we could use the "all in one"
00056         // approach - this is an example, after all :-)
00057         QCA::SecureArray part1(arg.toByteArray().left(3)); // three chars - "hel"
00058         QCA::SecureArray part2(arg.toByteArray().mid(3)); // the rest - "lo"
00059 
00060         // create the required object.
00061         QCA::Hash hashObject("md5");
00062         // we split it into two parts to show incremental update
00063         hashObject.update(part1);
00064         hashObject.update(part2);
00065         // no more updates after calling final.
00066         QCA::SecureArray resultArray = hashObject.final();
00067         // convert the result into printable hexadecimal.
00068         QString result = QCA::arrayToHex(resultArray.toByteArray());
00069         printf("md5(\"%s\") = [%s]\n", arg.data(), result.toAscii().data());
00070     }
00071 
00072     return 0;
00073 }
00074
qca

hashtest.cpp

qca

KDE Support
