Unsigned char DecryptedData = ĪES_cbc_encrypt((unsigned char*) encryptedText.data(), DecryptedData, encryptedText.size(), (const AES_KEY*)AesDecryptKey, IV, AES_DECRYPT) QByteArray MainWindow::decrypt(QByteArray encryptedText)ĪES_set_decrypt_key(Key, 256, AesDecryptKey) Int RequiredPadding = (AES_BLOCK_SIZE - (UserDataSize % AES_BLOCK_SIZE)) įor(int i=0 i (EncryptedData), UserDataSizePadded) Unsigned char* IV = (unsigned char*) myiv.data() Ĭonst int UserDataSize = (const int)plainText.size() Unsigned char* Key = (unsigned char*) passphrase.data() QByteArray myiv = QByteArray::fromBase64("Gi9kSb/a5f0h7Mb+sRWQdQ=") QByteArray passphrase = QByteArray::fromBase64("pE4B5J5u18U55BTJho//Fioy2bEURa5W/o7HrO1O7/s=") QByteArray MainWindow::encrypt(QByteArray plainText) Qry.prepare("INSERT INTO "+Bufferbase+"(url, email, password)" "VALUES(:url, :email, :password)") ![]() QString password = ui->recordPass->text() Int addressId = ui->tableView->selectionModel()->currentIndex().row() If (ui->tableView->selectionModel()->hasSelection()) M_db = QSqlDatabase::addDatabase("QMYSQL") Void MainWindow::nextWindow(QString base) SetWindowFlags(Qt::MSWindowsFixedSizeDialogHint) Ĭonnect(m_logWindow,&login::LoginSuccess, this, &MainWindow::nextWindow) It's the password manager so I need to use symetric encrpytion(In my case it is AES-256-CBC). For example, your SQL password or OS logon password is stored this way. This way end users/hackers cannot discover the saved password by decrypting, because that is not available, they simply have to supply the right password so that it is correct when encrypted only. Either the encrypted versions are the same or they are not. You store the previously-encrypted password and when the user supplies the password to check you only encrypt that as you did when storing, and compare that against what was stored. For example, your SQL password or OS logon password is stored this said in Deleting row from QTableWidget and from Sqlite said in Deleting row from QTableWidget and from Sqlite database:īut if you only to check user input against a previously supplied password, you do not need to decrypt, and you should use an asymmetric (one-way) algorithm. ![]() Anyone else armed with the decryption algorithm can discover what the original clear-text password was.īut if you only to check user input against a previously supplied password, you do not need to decrypt, and you should use an asymmetric (one-way) algorithm. you have to pass it on in clear-text to something else) you have to use a symmetric (two-way) encryption algorithm, and that is inherently unsafe. If you need to decrypt them for some purpose (e.g. When you put passwords into storage (like a database) there are two possible approaches, depending on what you need to do with the passwords: I don't know if you wish to discuss this any further, but if you do you would have to explain what this means, and why it has anything to do with the view (rather than the model), plus where updating the database is involved. I don't know how to download the passwords from db and send them to the tableView without updating the database. Said in Deleting row from QTableWidget and from Sqlite database:
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