Canceling

In implicit deregistration algorithms, the visitor location register (VLR) user previously visited does not perform deregistration.

减少位置管理信令开销是PCS网络中非常重要的一环,隐含注销算法是用户改变位置区时,原数据库VLR不执行注销。

This paper, at first, analyzes several methods of certificate revocation and verification widely used in PKI environment, points out their limitation, then gives a new idea that the certificate holder provides validity evidence for certificate actively.

首先分析了PKI环境下数字证书注销和验证的几种基本方案及其局限性 ,提出了证书提供者主动提供证书有效性证据的思想 ,并据此设计了一种新的数字证书注销状态验证方案。