基于多级认证的三模冗余系统自毁策略设计

Design of self-destruction strategy used in TMR based on multi-level authentication

为了确保嵌入式计算机系统内关键数据及程序的高安全性及可靠性,研究了认证技术及自毁方式,提出了多级认证的概念,给出3种关键信息的自毁方式,同时基于多级认证的流程设计一种多级自毁策略。在一个三模冗余加热备份模块的模型机的基础上,设计并实现了基于该策略的自毁安全子系统,并给出具体实验结果。结果表明,该设计可行,其功能满足设计要求,为此领域的后续工作提供研究参考,对开展具有自毁功能的嵌入式系统研究具有重要的意义。

To ensure the high security and reliability of the key data and program stored in the embedded computer systems,the authentication and self-destruction technologies are studied.The concept of multi-level authentication and three methods of devastation are proposed.Based on a TMR system with a warm backup,a self-destruction system with multiple strategies in combination with multi-level identity authentication technology is presented and implemented.At last,experiments are carried out on the self-destruction system.Experimental results show that this method is feasible,and its functions meet the design requirements.