public static string CalculateToken(String username, string password)
{
var tmp = MD5Core.GetHash(Encoding.UTF8.GetBytes(username.ToLower()));
var md5Username = ToHex(tmp).ToLower();
tmp = MD5Core.GetHash(Encoding.UTF8.GetBytes(password));
var md5Password = ToHex(tmp).ToLower();
tmp = MD5Core.GetHash(Encoding.UTF8.GetBytes(md5Username + ":" + md5Password));
var token = ToHex(tmp);
return token;
}
}