Standard No.:	GB/T 15843.4-1999
English Name:	Information technology―Security techniques―Entity authentication―Part 4:Mechanisms using a cryptographic check function
Chinese Name:	信息技术 安全技术 实体鉴别 第4部分：采用密码校验函数的机制
Chinese Classification:	L80    Data encryption
Professional Classification:	GB    National Standard
Source Content Issued by:	CSBTS
Issued on:	1999-01-01
Implemented on:	2000-5-1
Status:	superseded
Superseded by:	GB/T 15843.4-2008 Information technology - Security techniques - Entity authentication - Part 4: Mechanisms using a cryptographic check function
Superseded on:	2008-11-1
Target Language:	English
File Format:	PDF
Word Count:	4500 words
Translation Price(USD):	130.0
Delivery:	via email in 1~3 business day

本标准规定了采用密码校验函数的实体鉴别机制。其中有两种是单个实体的鉴别（单向鉴别），其余
的是两个实体的相互鉴别。
本标准所规定的机制采用诸如时间标记、顺序号或随机数等时变参数，以防止有效的鉴别信息以后又被接受。