基于改进SM3的配电网络安全网关系统研究与实现

Research and Implementation of Secure Gateway System of Distribution Network Based on Improved SM3

为提高配电网络安全,提出了一种配电网络安全网关系统。该系统包括配电网络防护终端、交互网关接入区及主站防护区这3个子系统。为确保数据的机密性和完整性,系统应用改进SM3算法对通信内容进行加密,从而确保数据的唯一性和可靠性。通过测试分析,与经典SM3算法的运行情况相比,改进后的SM3算法总运行时间减少将近26.9%。其中,压缩函数的效率显著提高了28.7%左右,证明了改进方案能有效提高SM3算法的运行效率。同时,对比了正常通信情况及网络安全威胁情况下,系统运行时主站和终端发送和接收验证包数量。对比结果表明,该系统能够应对网络攻击来验证系统的安全性。测试结果验证了所提系统在执行效率及安全性能方面的有效性。

To improve the security of distribution network,a distribution network security gateway system is proposed.The system includes three subsystems:distribution network protection terminal,interactive gateway access area and master station protection area.To ensure the confidentiality and integrity of data,the system applies the improved SM3 algorithm to encrypt the communication contents,thus ensuring the uniqueness and reliability of data.Through testing and analysis,compared with the operation of the classical SM3 algorithm,the total running time of the improved SM3 algorithm is reduced by nearly 26.9%,in which the efficiency of the compression function is significantly improved by about 28.7%,proving that the improved scheme can effectively improve the operation efficiency of the SM3 algorithm.Meanwhile,the number of packets sent and received by the master and terminal during the system operation under normal communication and network security threats are compared.The comparison results show that the proposed system can cope with network attacks to verify the system security.The test results verify the effectiveness of the proposed system in terms of execution efficiency and security performance.