基于SM3算法的智能配电网报文安全认证方法

SM3-based Intelligent Distribution Network Message Security Authentication Method

电网智能化的不断提升,使智能配电网的信息报文传输安全重要性不断提高,如何减少信息报文在整个电力系统流通时被网络攻击一直在广泛研究。首先介绍了智能配电网信息报文传输安全的背景,再讲述配电网遭受网络攻击的过程,指出了在传输过程中报文存在篡改的风险,并针对风险环节引入了国密算法SM3。介绍了SM3算法在配电网报文中具体的安全认证方式,通过对比发送方和接收方所得的摘要是否一致来判断报文是否安全。最后将SM3算法移植入Dev C++软件上进行实例测试,验证了算法的完整性校验和时效性,表明满足报文安全性要求。

The continuoμs improvement of power network intelligence has increased the importance of information message transmission security in smart distribution networks,and how to reduce the information messages being attacked by network when circulating in the whole power system has been studied.Firstly,the background of intelligent distribution network information message transmission security is introduced.Then the process of the distribution network being attacked is described and the risk of tampering in the transmission process is pointed out.National secret algorithm SM3 is introduced for risk link.The specific security authentication mode of the SM3 algorithm in the distribution network message is introduced and the security of the message is determined by comparing the digest obtained by the sender and the receiver.Finally,the SM3 algorithm is transplanted to Dev C++software to test,and the integrity check and timeliness of the algorithm is verified,which shows that it meets the requirements of message security.