A Dynamic Secret-Based Encryption Scheme for Smart Grid Wireless Communication
A Dynamic Secret-Based Encryption Scheme for Smart Grid Wireless Communication
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DOI：
10.1109/tsg.2013.2264537
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发表时间：
2014-05
影响因子：
9.6
通讯作者：
Ting Liu;Yang Liu;Yashan Mao;Yao Sun;X. Guan;W. Gong;Sheng Xiao
中科院分区：
文献类型：
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作者：
Ting Liu;Yang Liu;Yashan Mao;Yao Sun;X. Guan;W. Gong;Sheng Xiao
将信息网络融入电力系统是实现智能电网愿景的关键，但同时也带来了许多安全问题。无线通信具有低成本、快速部署、共享通信介质和移动性等优点；同时，它带来了许多安全和隐私挑战。本文应用动态秘密的概念来设计智能电网无线通信的加密方案。通信双方之间，之前的数据包被编码为重传序列，其中重传的数据包被标记为“1”，另一个被标记为“0”。通信过程中，双方都会生成重传序列，以更新动态加密密钥。重传顺序中的任何丢失或误判都会阻止对手获得密钥。在我们的实验中，构建了一个智能电网平台，采用 ZigBee 协议进行无线通信。并基于该平台设计了动态秘密加密演示系统。实验结果表明，ZigBee通信中的重传和丢包是不可避免且不可预测的，对手不可能跟踪动态加密密钥的更新。
Integrating information network into power system is the key for realizing the vision of smart grid, but also introduces many security problems. Wireless communication offers the benefits of low cost, rapid deployment, shared communication medium, and mobility; at the same time, it causes many security and privacy challenges. In this paper, the concept of dynamic secret is applied to design an encryption scheme for smart grid wireless communication. Between two parties of communication, the previous packets are coded as retransmission sequence, where retransmitted packet is marked as “1” and the other is marked as “0.” During the communication, the retransmission sequence is generated at both sides to update the dynamic encryption key. Any missing or misjudging in retransmission sequence would prevent the adversary from achieving the keys. In our experiments, a smart grid platform is built, employing the ZigBee protocol for wireless communication. And a dynamic secret-based encryption demo system is designed based on this platform. The experiment results show that the retransmission and packet loss in ZigBee communication are inevitable and unpredictable, and it is impossible for the adversary to track the updating of the dynamic encryption key.