How to calculate hash for a text using QCryptographicHash in Qt
hamishwillee
(Talk | contribs) m (Add Abstract. Point to correct Qt SDK) |
hamishwillee
(Talk | contribs) m (Hamishwillee - Bot change of template (Template:CodeSnippet) - now using Template:ArticleMetaData) |
||
| Line 1: | Line 1: | ||
[[Category:Qt]][[Category:UI]] | [[Category:Qt]][[Category:UI]] | ||
{{ReviewerApproved|timestamp=20090928}} | {{ReviewerApproved|timestamp=20090928}} | ||
| − | {{ | + | {{ArticleMetaData |
|id=... | |id=... | ||
|platform=S60 3rd Edition FP1, S60 3rd Edition FP2, S60 5th Edition | |platform=S60 3rd Edition FP1, S60 3rd Edition FP2, S60 5th Edition | ||
| Line 9: | Line 9: | ||
|creationdate=10 April 2009 | |creationdate=10 April 2009 | ||
|keywords=QCryptographicHash | |keywords=QCryptographicHash | ||
| + | |||
| + | |sourcecode= <!-- Link to example source code (e.g. [[Media:The Code Example ZIP.zip]]) --> | ||
| + | |installfile= <!-- Link to installation file (e.g. [[Media:The Installation File.sis]]) --> | ||
| + | |sdk=<!-- SDK(s) built and tested against (e.g. [http://linktosdkdownload/ Nokia Qt SDK 1.1]) --> | ||
| + | |devicecompatability=<!-- Compatible devices (e.g.: All* (must have GPS) ) --> | ||
| + | |signing=<!-- Empty or one of Self-Signed, DevCert, Manufacturer --> | ||
| + | |capabilities=<!-- Capabilities required (e.g. Location, NetworkServices. -->) | ||
| + | |author=[[User:Mind freak]] | ||
}} | }} | ||
Revision as of 11:59, 24 June 2011
28 Sep
2009
Article Metadata
Tested with
Devices(s): S60 Emulator
Compatibility
Platform(s): S60 3rd Edition FP1, S60 3rd Edition FP2, S60 5th Edition
Platform Security
Capabilities: )
Article
Keywords: QCryptographicHash
Created: mind_freak
(10 Apr 2009)
Last edited: hamishwillee
(24 Jun 2011)
Contents |
Introduction
This example shows how to encrypt text using a QCryptographicHash.
Preconditions
- Download and install the Qt SDK
Some Related Function
- Adds the data to the cryptographic hash:
QByteArray string = "Nokia"; QCryptographicHash hasher(QCryptographicHash::Sha1); hasher.addData(string);
- Returns the final hash value.
QByteArray string1=hasher.result();
Source Code
Main.cpp
#include <QtGui/QApplication>
#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); // TODO: use e.g. toHex or toBase64
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->showMaximized();
return a.exec();
}
ScreenShot
