local key meaning in English

本机射击开关
局部键

Lastly , this paper give a realization of distributed multipoint multimedia conferences using this encryption scheme . this system include : local key management module key server module encrypt / decrypt module winsocket module and other module , this system solve the problem of security communication in distributed multipoint multimedia conferences system effectively
混合加密系统主要包括以下模块：本地密钥管理模块、密钥服务器模块、加密和认证模块、网络socket模块、其它辅助模块等。本系统有效解决了基于voip技术的分布式网络多媒体会议系统中信息安全传输的问题。