本文档描述了无需证书撤消列表就可以决定一张数字证书当前状态的协议。 第二章中有协议的概述。功能必要条件在第三章中有详细描述。第四章是具体协议。第 五章我们将讨论一些和协议有关的安全问题。附录A定义了在HTTP之上的OCSP，附 录B有ASN.1的语义元素，附录C详细描述了信息的mime类型。-This document describes the need to withdraw the certificate on the list can decide a digital certificate current status agreement. The second chapter is an overview of the agreement. Functions of the necessary conditions for the third chapter, a detailed descr iption. The fourth chapter is a specific agreement. The fifth chapter we will discuss some agreement and related security issues. Appendix A definition in the HTTP above OCSP, Appendix B is the ASN.1 semantic elements, described in detail in Appendix C of information mime types.