Creates a new DER input stream from part of this input stream.
@param len how long a chunk of the current input stream to use,
starting at the current position.
@param do_skip true if the existing data in the input stream should
be skipped. If this value is false, the next data read
on this stream and the newly created stream will be the
same.
Creates a new DER input stream from part of this input stream.
@param len how long a chunk of the current input stream to use, starting at the current position. @param do_skip true if the existing data in the input stream should be skipped. If this value is false, the next data read on this stream and the newly created stream will be the same.