The basic idea of the algorithm is this: a depth-first search begins from an arbitrary start node (and subsequent depth-firstsearches are conducted on any nodes that have not yet been found).
基本思想是:从任意一个结点出发深搜(后续的深搜要在未访问过的结点上进行)。
2
Furthermore, an algorithm of certificate chain processing is presented, which searches the DAGs, and a DAG by depth-first-algorithm, and inter-DAGs by breadth-first-algorithm.