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How to calculate hash for a text using QCryptographicHash in Qt

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(New page: Category:QtCategory:Qt for S60Category:Code Examples __NOTOC__ __NOEDITSECTION__ {{CodeSnippet |id=... |platform=S60 3rd Edition FP1, S60 3rd Edition FP2, S60 5th Edition |dev...)
 
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==Preconditions==
 
==Preconditions==
  
* Install Qt for S60 Garden release from here: [http://pepper.troll.no/s60prereleases/ Qt for S60 "Garden" pre-release]
+
* [http://pepper.troll.no/s60prereleases/ Download the latest Qt for S60 distribution from Qt Software].
 +
* Install Qt for S60:[[Installing Qt on S60]]
 
* Check this link for installation guide: [http://pepper.troll.no/s60prereleases/doc/install-s60.html How to install the package].
 
* Check this link for installation guide: [http://pepper.troll.no/s60prereleases/doc/install-s60.html How to install the package].
 
* Go through this article: [[Getting started with Qt for S60]]
 
* Go through this article: [[Getting started with Qt for S60]]

Revision as of 06:38, 30 June 2009


Article Metadata
Tested with
Devices(s): S60 Emulator
Compatibility
Platform(s): S60 3rd Edition FP1, S60 3rd Edition FP2, S60 5th Edition
Symbian
Article
Keywords: QCryptographicHash,QByteArray
Created: (10 Apr 2009)
Last edited: savaj (30 Jun 2009)

Introduction

The QCryptographicHash class provides a way to generate cryptographic hashes.

QCryptographicHash can be used to generate cryptographic hashes of binary or text data.

Preconditions


Some Related Function

  • Adds the data to the cryptographic hash.
QByteArray string="Nokia";
hash->addData(string);
  • Returns the final hash value.
QByteArray string1=hash->result();

Source Code

Main.cpp

#include <QtGui/QApplication>
#include "textcodec.h"
#include<QWidget>
#include<QHBoxLayout>
#include <QCryptographicHash>
#include<QString>
#include<QByteArray>
#include<QLabel>
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
QWidget *win=new QWidget();
QHBoxLayout *lay=new QHBoxLayout();
QLabel *lbl=new QLabel();
QLabel *lbl1=new QLabel("Encrypted Text:");
lbl1->setBuddy(lbl);
QByteArray string="Nokia";
QCryptographicHash *hash=new QCryptographicHash(QCryptographicHash::Md4);
hash->addData(string);
QByteArray string1=hash->result();
lbl->setText(string1);
lay->addWidget(lbl1);
lay->addWidget(lbl);
win->setLayout(lay);
win->setStyleSheet("* { background-color:rgb(199,147,88); padding: 7px ; color:rgb(255,255,255)}");
win->show();
return a.exec();
}

ScreenShot

More About QCryptographicHash

Crypto.JPG

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