Encryption and Decryption for Passwords

 public static string EncryptText(string strText)
        {
            return Encrypt(strText, "my salt key");
        }
       
        public static string DecryptText(string strText)
        {
            return Decrypt(strText, "my salt key");
        }

        //The function used to encrypt the text
        private static string Encrypt(string strText, string strEncrKey)
        {
            byte[] byKey = { };
            byte[] IV = { 18, 52, 86, 120, 144, 171, 205, 239 };
            try
            {
                byKey = System.Text.Encoding.UTF8.GetBytes(strEncrKey.Substring(1, 8));
                DESCryptoServiceProvider des = new DESCryptoServiceProvider();
                byte[] inputByteArray = Encoding.UTF8.GetBytes(strText);
                MemoryStream ms = new MemoryStream();
                CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(byKey, IV), CryptoStreamMode.Write);
                cs.Write(inputByteArray, 0, inputByteArray.Length);
                cs.FlushFinalBlock();
                return Convert.ToBase64String(ms.ToArray());
            }

            catch (Exception ex)
            {
                GlobalUtility.Logger.Error(ex);
                return ex.Message;
            }

        }

        //The function used to decrypt the text
        private static string Decrypt(string strText, string sDecrKey)
        {
            byte[] byKey = { };
            byte[] IV = { 18, 52, 86, 120, 144, 171, 205, 239 };
            byte[] inputByteArray = new byte[strText.Length + 1];
            try
            {
                byKey = System.Text.Encoding.UTF8.GetBytes(sDecrKey.Substring(1, 8));
                DESCryptoServiceProvider des = new DESCryptoServiceProvider();
                inputByteArray = Convert.FromBase64String(strText);
                MemoryStream ms = new MemoryStream();
                CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(byKey, IV), CryptoStreamMode.Write);
                cs.Write(inputByteArray, 0, inputByteArray.Length);
                cs.FlushFinalBlock();
                System.Text.Encoding encoding = System.Text.Encoding.UTF8;
                return encoding.GetString(ms.ToArray());
            }

            catch (Exception ex)
            {
                GlobalUtility.Logger.Error(ex);
                return ex.Message;
            }

        }