I need to know what these two do exactly. I guess they serialize/deserialize ```cer``` certificates somehow, but not sur how. Thanks

gistfile1.cs

[DllImport("ifsutils.dll")]
private static int WsDeserializeTrustPolicyStore([MarshalAs(UnmanagedType.Bool)] bool UpdateMachineStore, [MarshalAs(UnmanagedType.LPArray)] byte[] pSerializedStore, [MarshalAs(UnmanagedType.U4)] int cbSerializedStore, out System.Web.Security.SingleSignOn.SafeCertStoreHandle phCertStore);

[DllImport("ifsutils.dll")]
private static int WsSerializeTrustPolicyStore(System.Web.Security.SingleSignOn.SafeCertStoreHandle hCertStore, [MarshalAs(UnmanagedType.LPArray, ArraySubType = UnmanagedType.LPWStr)] string[] Thumbprints, [MarshalAs(UnmanagedType.U4)] int cThumbprints, out CriticalLocalMemHandle pSerializedStore, out int pcbSerializedStore);