基于云安全与同态密码的智能电表计费管理模型

Smart Meter Billing Management Model Based on Cloud Security and Homomorphic Password

针对电力物联网中智能电表与计量主站云平台的安全可靠传输、处理及存储问题,提出了一种基于云安全与同态密码的智能电表计费管理模型。首先基于云安全进行网络安全检测,强化了物联网环境下智能电表的安全防护;然后,使用同态非对称密钥加密技术对客户数据进行加密上传至云端,且允许云端在不进行解密操作前提下,获得给定时间段内用户总能耗,加强用户隐私和数据机密性保护;最后结合Amdahl定律和自定义的加速度度量,形成一种并行计费算法,充分提高了云服务器中多核处理器的处理能力。实验结果表明,相对于现有方法,所提模型能够在保证用户隐私和数据安全的前提下,显著减少会智能电表计费所需时间,增强电力物联网的安全防护与信息处理能力。

In view of the safe and reliable transmission,processing and storage of smart meters and the cloud platform of metering master station in power Internet of things,a smart meter billing management model based on cloud security and homomorphism password in Internet of things environment is proposed.Firstly,network security detection based on cloud security is helpful to strengthen the security protection of smart meters in Internet of things environment.Secondly,homomorphic asymmetric key encryption technology is uesd to encrypt and upload customer data to the cloud,and allow the cloud to obtain the total energy consumption of users in a given period of time without decryption operation,so as to strengthen the protection of user privacy and data confidentiality.After that,combining Amdahl’s law and user-defined acceleration measurement,a parallel accounting algorithm is formed,which can fully improve the processing capacity of multi-core processor in cloud servers.Experimental results show that compared with the existing methods,the proposed model can significantly reduce the time required for smart meter billing and enhance the security protection and information processing capacity of smart grid on the premise of ensuring user privacy and data security.