| 基于区块链技术的充电桩密钥管理方案 |
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| 引用本文： | 高 兰,魏光村,李 庆.基于区块链技术的充电桩密钥管理方案[J].教育技术导刊,2009,19(10):138-141. |
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| 作者姓名： | 高 兰 魏光村 李 庆 |
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| 作者单位： | 1. 山东科技大学 计算机科学与工程学院，山东 青岛 266590；2. 山东科技大学 智能装备学院，山东 泰安 271019 |
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| 基金项目： | 山东省重点研发计划项目（2018GGX101011）；山东省自然科学基金项目（ZR2018BF005） |
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| 摘 要： | 为了保证充电桩 、充电桩监控系统及运营管理平台之间通信安全与充电桩通信效率，结合区块链技术提出一种基于区块链技术的分布式密钥管理方案。从密钥生成、更新和注销3个方面进行详细介绍。优化改进椭圆曲线加密算法的标量乘法运算，将随机数k]表示成二进制数形式，减少kP]运算计算量，以提高椭圆曲线加密算法运算效率。改进后的算法平均只需进行3/2log2k]次标量乘法运算，最多需进行2log2k]次标量乘法运算，使在密钥产生阶段与签名阶段消耗的时长相较于椭圆曲线加密算法均缩短了20~30个百分点，在验证阶段缩短了约40~50个百分点，证明该方案具有更高的响应效率和安全性，也更适用于电动汽车充电基础设施。
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| 关 键 词： | 区块链 充电桩 密钥管理 信息安全 |
| 收稿时间： | 2020-03-28 |
Key Management Scheme of Charging Pile Based on Blockchain Technology |
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| GAO Lan,WEI Guang-cun,LI Qing.Key Management Scheme of Charging Pile Based on Blockchain Technology[J].Introduction of Educational Technology,2009,19(10):138-141. |
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| Authors: | GAO Lan WEI Guang-cun LI Qing |
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| Institution: | 1. College of Computer Science and Engineering， Shandong University of Science and Technology， Qingdao 266590， China；2. Department of Information and Engineering， Shandong University of Science and Technology， Taian 271019， China |
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| Abstract: | Charging pile communication system is an important part of better development of charging infrastructure and service of electric vehicles. The key management is crucial to the successful implementation of information security protection measures. In order to ensure the communication safety and efficiency of the charging pile， the charging pile monitoring system and the operation management platform， this paper proposes a distributed key management scheme based on blockchain technology. The article introduces in detail the three aspects of key generation， update and cancellation. We optimize the scalar multiplication of the elliptic curve encryption algorithm. The random number k] is represented as a binary number， which reduces the calculation amount of the kP] operation， thereby improving the operation efficiency of the elliptic curve encryption algorithm. The improved algorithm only needs to perform 3/2log2k] scalar multiplication operations on average， and at most 2log2k] scalar multiplication operations. Compared with the elliptic curve encryption algorithm， the time in the key generation phase and the signature phase is improved by 20-30%， and it is increased by 40-50% in the verification phase. Through the analysis of the scheme， the proposed scheme has higher response efficiency and safety， and is more suitable for the electric vehicle charging infrastructure. |
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| Keywords: | blockchain charging pile key management information security |
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