/// <summary>
        /// Decrypt a string.
        /// </summary>
        /// <param name="encryptedText">String to be decrypted</param>
        /// <param name="password">Password used during encryption</param>
        /// <exception cref="FormatException"></exception>
        public static string Decrypt(string encryptedText, string password)
        {
            if (encryptedText == null)
            {
                return(null);
            }

            if (password == null)
            {
                password = String.Empty;
            }

            // Get the bytes of the string
            try
            {
                var bytesToBeDecrypted = Convert.FromBase64String(encryptedText);
                var passwordBytes      = Encoding.UTF8.GetBytes(password);

                passwordBytes = SHA256.Create().ComputeHash(passwordBytes);

                var bytesDecrypted = SHA256Crypt.Decrypt(bytesToBeDecrypted, passwordBytes);

                return(Encoding.UTF8.GetString(bytesDecrypted));
            }
            catch (Exception)
            {
                return(null);
            }
        }