public static string GetMailLinkQueryString(string code, int userId)
{
// 32-bit block cipher. +https://github.com/eleven41/Eleven41.Skip32
//var cipher = new Eleven41.Skip32.Skip32Cipher(Encoding.ASCII.GetBytes(skip32Key));
//var encrypted = cipher.Encrypt(userId);
//// Convert to UInt32 to avoid a sign.
//var bytes = BitConverter.GetBytes(encrypted);
//var unsigned = BitConverter.ToUInt32(bytes, 0);
//var encryptedString = unsigned.ToString();
var encryptedString = Skip32Utils.EncriptIntToHexString(userId, skip32Key);
return(CodeKey + "=" + HttpUtility.UrlEncode(code) + "&" + UserIdKey + "=" + HttpUtility.UrlEncode(encryptedString));
}
public static int GetUserIdFromQueryStringValue(string queryStringValue)
{
//uint unsigned;
//if (UInt32.TryParse(queryStringValue, out unsigned))
//{
// var bytes = BitConverter.GetBytes(unsigned);
// var encrypted = BitConverter.ToInt32(bytes, 0);
// var cipher = new Eleven41.Skip32.Skip32Cipher(Encoding.ASCII.GetBytes(skip32Key));
// return cipher.Decrypt(encrypted);
//}
//else
// return 0;
return(Skip32Utils.DecriptHexStringToInt(queryStringValue, skip32Key, 0));
}