电力物联网轻量级身份认证及密钥协商方法

Lightweight Identity Authentication and Key Agreement Method for Power Internet of Things

随着电力物联网的快速发展,各种设备的大规模接入支撑了电力系统智能化水平的提升。然而,电力业务运营性能的不断提升,给海量设备的计算能力和存储容量带来了新的挑战。资源有限的设备将难以应用现有的公钥密码机制来确保安全性。为了确保设备间的通信安全,电力系统执行身份验证并生成会话密钥,从而保护信息交互的安全性。考虑到电力物联网设备的资源有限,本文提出了一种基于椭圆曲线算法的轻量级身份认证和密钥协商方案,实现了电力物联网环境的各主体间的快速安全认证。实验结果表明,提出方案实现了比传统方案更高的安全等级和运行效率。

With the rapid development of the power Internet of Things(IoT),the large-scale access of various devices supports the improvement of the intelligent level of the power system.However,the continuous improvement of power business operation performance has brought new challenges to the computing power and storage capacity of massive devices.It will be difficult for the devices with limited resources to apply the existing public key cryptography mechanism to ensure security.In order to ensure the communication security between devices,the power system performs authentication and generates session keys to protect the security of information interaction.Considering the limited resources of the power Internet of Things equipment,this paper proposes a lightweight identity authentication and key agreement scheme based on elliptic curve algorithm,which realizes the fast and secure authentication between various agents in the power Internet of Things environment.The experimental results show that the proposed scheme achieves higher security level and operation efficiency than the traditional scheme.