本文档规定了适用于需要轻量级加密机制的应用的MAC算法。这些机制可以用作数据完整性机制，以验证数据没有以未经授权的方式被更改。它们还可以用作消息认证机制，以确保消息是由拥有密钥的实体发起的。 本文件规定了以下MAC算法: a） LightMAC； b） Tsudik的按键模式； c） 底盘-12。

This document specifies MAC algorithms suitable for applications requiring lightweight cryptographic mechanisms. These mechanisms can be used as data integrity mechanisms to verify that data has not been altered in an unauthorized manner. They can also be used as message authentication mechanisms to provide assurance that a message has been originated by an entity in possession of the secret key. The following MAC algorithms are specified in this document: a) LightMAC; b) Tsudik's keymode; c) Chaskey-12.