A scalable public key infrastructure for smart grid communications

Mohamed Mahmoud, J. Misic, Xuemin Shen
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引用次数: 15

Abstract

The public-key cryptography is indispensable for securing the smart grid communications. In this paper, we propose a hierarchical and fully-connected public key infrastructure that considers the smart grid characteristics. In the proposed public key infrastructure, each certificate authority is responsible for managing the public-key certificates for a geo-bounded small area. We also propose a novel format for the certificates that does not only bind a node's identity to its public key but also to its privileges and permissions. Finally we propose efficient and scalable certificate- renewing scheme that can much reduce the overhead of renewing certificates. Our verifications and evaluations demonstrate that using public key cryptography is essential for securing the smart grid and our proposals are scalable. Moreover, the simulation results demonstrate that the certificate-renewing scheme can significantly reduce the overhead of certificate renewals.
用于智能电网通信的可扩展公钥基础设施
公钥加密是保障智能电网通信安全的重要手段。在本文中,我们提出了一种考虑智能电网特点的分层全连接公钥基础设施。在建议的公钥基础设施中,每个证书颁发机构负责管理地理边界小区域的公钥证书。我们还提出了一种新的证书格式,该格式不仅将节点的身份与其公钥绑定,还将其特权和权限绑定。最后,我们提出了一种有效的、可扩展的证书更新方案,可以大大减少证书更新的开销。我们的验证和评估表明,使用公钥加密对于保护智能电网至关重要,并且我们的建议是可扩展的。仿真结果表明,该证书更新方案可以显著降低证书更新的开销。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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