TETRA端-端加密系统设计

Design of TETRA End-to-End Encryption System

介绍的TETRA端-端加密系统,使用帧挪用实现语音信号的同步,使用帧插入技术实现视频信号的同步。系统使用分组密码的输出反馈模式实现端-端密钥序列发生器。在短信息端-端加密应用中,密码分组链接模式用来实现密码校验和的计算,该校验和用来确保数据的完整性。

This paper proposes an end-to-end encryption system with frame stealing technique for voice, and frame insertion for video. Block cipher in output feedback mode is used to implement the end-to-end key stream generator. Moreover, in SDS message encryption, a block cipher in CBC mode is used to calculate the cryptographically secure checksum, which is sufficient to test the integrity.