internal static byte[] Decode(CookieProtection cookieProtection, string data, Purpose purpose)
{
byte[] buf = HttpServerUtility.UrlTokenDecode(data);
if (AspNetCryptoServiceProvider.Instance.IsDefaultProvider)
{
// If we're configured to go through the new crypto routines, do so.
ICryptoService cryptoService = AspNetCryptoServiceProvider.Instance.GetCryptoService(purpose);
return(cryptoService.Unprotect(buf));
}
#pragma warning disable 618 // calling obsolete methods
// Otherwise fall back to using MachineKeySection.
if (buf == null || cookieProtection == CookieProtection.None)
{
return(buf);
}
if (cookieProtection == CookieProtection.All || cookieProtection == CookieProtection.Encryption)
{
buf = MachineKeySection.EncryptOrDecryptData(false, buf, null, 0, buf.Length);
if (buf == null)
{
return(null);
}
}
if (cookieProtection == CookieProtection.All || cookieProtection == CookieProtection.Validation)
{
return(MachineKeySection.GetUnHashedData(buf));
}
return(buf);
#pragma warning restore 618 // calling obsolete methods
}
internal static byte[] Decode(CookieProtection cookieProtection, string data)
{
byte[] buf = HttpServerUtility.UrlTokenDecode(data);
if ((buf == null) || (cookieProtection == CookieProtection.None))
{
return(buf);
}
if ((cookieProtection == CookieProtection.All) || (cookieProtection == CookieProtection.Encryption))
{
buf = MachineKeySection.EncryptOrDecryptData(false, buf, null, 0, buf.Length);
if (buf == null)
{
return(null);
}
}
if ((cookieProtection != CookieProtection.All) && (cookieProtection != CookieProtection.Validation))
{
return(buf);
}
return(MachineKeySection.GetUnHashedData(buf));
}