一种高效的配电网报文数字签名实现方法

智能配电网越来越多地依赖通信网络交互信息，而通信网络更加多样化和开放化，使得通信报文在网络传输中遭受篡改、窃取、伪造等恶意第三方攻击的可能性日益突出。在研究智能配电网报文安全目标的基础上，提出一种基于椭圆曲线的智能配电网通信报文认证方法。首先分析了数字签名的原理，接着研究基于数字签名的智能配电网报文安全的具体实现方法，并在当前智能配电网平台上进行报文安全测试实验。测试结果证明，基于椭圆曲线算法的报文认证方法安全性较好，同时还能满足智能配电网的实时性要求。

An efficient implementation method for distribution network packet based on digital signature

The smart distribution grid exchanges information relying on communications network increasingly, and the communication network becomes more diverse and open, which makes the communication packet vulnerable to be attacked by malicious third party such as information falsifying, forging, stealing. On the basis of researching packet security objectives of smart distribution network, this paper presents a packet authentication algorithm based on elliptic curve for smart distribution network communication. First the principle of digital signatures is discussed. Then the specific implementation of smart distribution network packet security based on digital signatures is introduced, and the packet security test is carried on the current intelligent distribution network platform. The experiment results show this packet authentication algorithm based on elliptic curve has better security and also can meet the real-time requirements of smart distribution network communication.