BS ISO/IEC 11770-2:2018定义了使用对称密码技术的密钥建立机制。本文介绍了建立密钥的三种环境:点对点、密钥分发中心（KDC）和密钥翻译中心（KTC）。它描述了携带键控材料或设置可以建立键控材料的条件所需的消息内容。本文件未指明消息中可能包含的其他信息，也未指定其他消息，如错误消息。消息的显式格式不在本文档的范围内。本文件未规定用于建立初始密钥的方法；也就是说，本文件中规定的所有机制都要求实体与至少一个其他实体（例如TTP）共享密钥。有关密钥生命周期的一般指南，请参阅ISO/IEC 11770？1. 本文件未明确解决域间密钥管理问题。本文件也未定义关键管理机制的实施；符合本文件的产品不一定兼容。交叉引用:ISO/IEC 11770-1ISO/IEC 9798（所有部分）ISO/IEC 19772ISO/IEC 18033（所有部分）ISO/IEC 10116ISO/IEC 8825-1ISO/IEC 29192（所有部分）ISO/IEC 10118（所有部分）ISO/IEC 18031ISO/IEC 9797（所有部分）ISO/IEC 11770-6:2016ISO/IEC 11770-3:2015购买本文件时提供的所有当前修订。

BS ISO/IEC 11770-2:2018 defines key establishment mechanisms using symmetric cryptographic techniques.This document addresses three environments for the establishment of keys: Point-to-Point, Key Distribution Centre (KDC), and Key Translation Centre (KTC). It describes the required content of messages which carry keying material or are necessary to set up the conditions under which the keying material can be established.This document does not indicate other information which can be contained in the messages or specify other messages such as error messages. The explicit format of messages is not within the scope of this document.This document does not specify the means to be used to establish initial secret keys; that is, all the mechanisms specified in this document require an entity to share a secret key with at least one other entity (e.g. a TTP). For general guidance on the key lifecycle, see ISO/IEC 11770?1. This document does not explicitly address the issue of inter-domain key management. This document also does not define the implementation of key management mechanisms; products complying with this document are not necessarily compatible.Cross References:ISO/IEC 11770-1ISO/IEC 9798 (all parts)ISO/IEC 19772ISO/IEC 18033 (all parts)ISO/IEC 10116ISO/IEC 8825-1ISO/IEC 29192 (all parts)ISO/IEC 10118 (all parts)ISO/IEC 18031ISO/IEC 9797 (all parts)ISO/IEC 11770-6:2016ISO/IEC 11770-3:2015All current amendments available at time of purchase are included with the purchase of this document.