More in-depth checks can be employed to ensure that the certificate is coming from the same company, but that is entirely up to the security needs of the project.

为了确保这个证书是来自于相同的公司，可以进行更深入的检查，但是这完全取决于项目的安全性需要。

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The scope and depth of the intermediate inspection shall be equal to an inspection for renewal of the certificate.

中期检查的范围和深度应与证书换证检查相同。

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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.

在证书链的搜索算法中，通过对多重边的有向无环图用深度优先和广度优先算法结合实现对证书链的搜索，避免证书图中产生的环形链而导致低搜索效率问题。

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