QCryptographicHash

[live_07]

Hi,

QByteArray l_byteArray = "hello world";

QCryptographicHash l_crpto( QCryptographicHash::Md5) ;

l_crpto.addData(l_byteArray);

l_byteArray = l_crpto.result();

qDebug<<l_byteArray ; //^╢;╗α▲ε╨?╦"╗Ã…Z═├

again how to convert hash value to bytearray like l_byteArray = "HELLOWORD";

Thanks in advance

[jpn]

You can use QByteArray::toHex() to obtain hexadecimal representation of the hash, like is shown at http://wiki.qtcentre.org/index.php?title=Cryptography.

[live_07]

Thanks for reply jpn

but i want text format conversion like l_byteArray = "hello world";

is there way to convert above format in qt?

[jpn]

But MD5 is a one-way hash..

[bugsstring]

Hello all !!
Im noob...
how do this
i have mysql database with table that contain user passwords encrypted by md5
my form have QLineEdit for password but method text() return QString and i cant use
QCryptographicHash pass(QCryptographicHash::Md5);
pass.addData(passwd->text());
what i can do ?

[Holy Cheater]

pass.result().toHex() - you get md5 string (QByteArray, to be precise) of password entered into the box.
Then you compare that string to the password, which you acquire from the database.