invokes the delegate ‘ s < code > mark ( int ) < / code > method . @ param as the stream to read from
invokes the delegate ‘ s < code > mark ( int ) < / code > method . @ param as the start last the contents to read .
this method is being used by the xml signature service engine during pre - sign [ 0 . . . 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4 @ param . @ param .