static void Main(string[] args) { string plaintext = null; int _enterResult; Console.WriteLine("To get password from database enter 1 , to insert new password or update enter 2"); _enterResult = Convert.ToInt32(Console.ReadLine()); if (_enterResult == 2) { Console.WriteLine("Enter new password:\n"); plaintext = Console.ReadLine(); } switch (_enterResult) { case 1: DatabaseParam databaseParam1 = new DatabaseParam(); databaseParam1 = DatabaseLayer.ReturnPassword(); EncryptionDetails encryptionDetails1 = new EncryptionDetails(); encryptionDetails1.ciphertext = ConvertToByteArray(databaseParam1._strCiphertext); encryptionDetails1.iv = ConvertToByteArray(databaseParam1._strIV); encryptionDetails1.key = ConvertToByteArray(databaseParam1._strKey); plaintext = null; plaintext = RijndaelEncryption.DecryptStringFromBytes(encryptionDetails1); Console.WriteLine("So the password saved in Database is : \n {0}", plaintext); Console.ReadLine(); break; case 2: EncryptionDetails encryptionDetails2 = new EncryptionDetails(); encryptionDetails2 = RijndaelEncryption.EncryptStringToBytes(plaintext); DatabaseParam databaseParam2 = new DatabaseParam(CreateString(encryptionDetails2.ciphertext), CreateString(encryptionDetails2.iv), CreateString(encryptionDetails2.key)); DatabaseLayer.InsertUpdatePassword(databaseParam2); break; default: Console.WriteLine("Please enter corect number"); break; } }