会话密钥协商协议是在不可信网络中实现安全的信息交换的有效解决方法.通过对会话密钥协商协议相关的安全属性、可证明安全理论及协议分类进行说明.阐述双方会话密钥协商协议与群密钥协商协议的研究现状.将近年来的典型方案在计算开销、交互轮数、安全属性、安全模型等方面进行对比分析.给出会话密钥协商协议设计的基本原则并指明了未来的研究方向.%Session key agreement protocol is one of the effective solutions to secure information exchange in untrusted networks.This paper explains the security attribute of the session key agreement protocol, provable security theory and protocol classification;presents current status of the two-party session key agreement protocol and group key agreement protocol;compares and analyzes the typical schemes in recent years in terms of computational overhead, interactive rounds,security attributes and security model;points out that basic design principles and the future research direction of the session key agreement.
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