public void GetBinaryForm () { SecurityIdentifier builtInAdmins = new SecurityIdentifier (WellKnownSidType.BuiltinAdministratorsSid, null); CommonAce ace = new CommonAce (AceFlags.None, AceQualifier.AccessAllowed, 0x7FFFFFFF, builtInAdmins, false, null); byte[] buffer = new byte[ace.BinaryLength]; ace.GetBinaryForm (buffer, 0); byte[] aceBinary = new byte[] { 0x00, 0x00, 0x18, 0x00, 0xFF, 0xFF, 0xFF, 0x7F, 0x01, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x20, 0x00, 0x00, 0x00, 0x20, 0x02, 0x00, 0x00 }; Assert.AreEqual (aceBinary, buffer); }