AdvancedLauncher.Tools.PassEncrypt.Encrypt C# (CSharp) Метод

        public static string Encrypt(string plainText, string passPhrase)
        {
            if (string.IsNullOrEmpty(plainText)) {
                return null;
            }

            byte[] initVectorBytes = Encoding.UTF8.GetBytes(getInitVector());
            byte[] plainTextBytes = Encoding.UTF8.GetBytes(plainText);
            PasswordDeriveBytes password = new PasswordDeriveBytes(passPhrase, null);
            byte[] keyBytes = password.GetBytes(keysize / 8);
            RijndaelManaged symmetricKey = new RijndaelManaged();
            symmetricKey.Mode = CipherMode.CBC;
            ICryptoTransform encryptor = symmetricKey.CreateEncryptor(keyBytes, initVectorBytes);

            MemoryStream memoryStream = new MemoryStream();
            using (var cryptoStream = new CryptoStream(memoryStream, encryptor, CryptoStreamMode.Write)) {
                cryptoStream.Write(plainTextBytes, 0, plainTextBytes.Length);
                cryptoStream.FlushFinalBlock();
                return Convert.ToBase64String(memoryStream.ToArray());
            }
        }