摘要： NPKI，即基于嵌套证书的PKI系统，在不改变原有PKI层次结构和信任关系的前提下，优化了证书的证明路径，提高了各级CA的效率，从而有效地弥补了PKI在证书有效性证明中存在的不足。

关键词: NPKI, 证书证明路径, 证书权威

Abstract: NPKI, which is the nested certification based PKI, provides an efficient and dynamic verification path, and improves the efficiency of all levels CAs, without spoiling the trust structure and topology of the classical PKI, thereby it makes up the deficiency of the classical PKI in the certificate path verification effectively. Key words

中图分类号: 

• TP393.08