基于非对称数字签名技术的配电终端授时安全防护方法

Time Service Protection Method for the Distribution Terminal Based on Asymmetric Digital Signature

随着配电自动化技术的发展,越来越多诸如配电自动化系统设备互操作、自描述等基于系统时标一致性的智能化功能正在推广应用,所以配电自动化系统时标的准确性和安全性就变得尤为重要,综合考虑对时的准确性、安全性及算法易于实现等因素,选择基于SM2非对称数字签名技术的SNTP(简单网络对时协议)来完成配电自动化系统设备的时钟校核,以保障配电自动化系统的安全、可靠运行。

With the development of distribution automation technology, more and more intelligent functions based on the consistency of the system time scale such as interoperability and self-description of devices of the distribution automation system are put into application so that the accuracy and safety of the time scale of the distribution automation system becomes particularly important. Under consideration of time check accuracy, safety and algorithm implementation, SNTP based on SM2 asymmetric digital signature technology is chosen to perform clock calibration of the devices of the distribution automation system so as to ensure the safe and reliable o^eration of the svstem.