Encryption with Qt

[wirasto]

I want to encrypt text with Qt and I use the QCA. I followed this tutorial and successfully.

But when I only use for decrypt, the process is failed. this is my code

QCA::Cipher cipher = QCA::Cipher(QString("aes128"), QCA::Cipher::CBC,
                                             QCA::Cipher::DefaultPadding, QCA::Decode,
                                             key, iv);
 
    QString s="0c7d98f0421591e1bec5b125170453d7";
    QCA::SecureArray encryptedData = s.toAscii();
    QCA::SecureArray decryptedData = cipher.process(encryptedData);
    if (!cipher.ok()) {
        qDebug() << "Decryption failed !";
        return;
    }
    qDebug() << QString(decryptedData.data());

QCA::Cipher cipher = QCA::Cipher(QString("aes128"), QCA::Cipher::CBC,
                                             QCA::Cipher::DefaultPadding, QCA::Decode,
                                             key, iv);

    QString s="0c7d98f0421591e1bec5b125170453d7";
    QCA::SecureArray encryptedData = s.toAscii();
    QCA::SecureArray decryptedData = cipher.process(encryptedData);
    if (!cipher.ok()) {
        qDebug() << "Decryption failed !";
        return;
    }
    qDebug() << QString(decryptedData.data());

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What's wrong with my code?

* Btw, I can decrypt everything what I encrypt in QCA with php-mcrypt ?

[wysota]

You're decrypting textual representation (lines #5-6) of your ciphertext.