using System;
using System.Data;
using System.Configuration;
using System.Web;
public class SecurityHelper
{
public static string EncryptKey(string key)
{
char[] arr = key.ToCharArray();
for (int ii = 0; ii < arr.Length; ii++)
{
arr[ii] ^= (char)14;
}
byte[] b = new byte[arr.Length];
for (int ii = 0; ii < arr.Length; ii++)
{
b[ii] = (byte)arr[ii];
}
return Convert.ToBase64String(b);
}
public static string DecryptKey(string key)
{
byte[] b = Convert.FromBase64String(key);
char[] arr = new char[b.Length];
for (int ii = 0; ii < b.Length; ii++)
{
arr[ii] = (char)(b[ii] ^ 14);
}
return new string(arr);
}
}