摘要
分析了利用公网作为数据通道对电动汽车充电设施数据进行运营管理时信息安全的重要性。通过对常用通信安全机制的分析,结合充电设施数据传输特点和工程应用需求,比较和选择合适的数据加密方式。考虑充电设施对成本及可靠性的要求,大多采用嵌入式系统,因此对常用的一次一密的加密方式提出了改进方法:采用密钥池技术简化加密算法,提高处理效率,同时增加冗余字节,固定报文长度分组传输,进一步提高密文破解难度。
The importance of data security is discussed when charging facilities for electric vehicles are supervised through the public network.Data security methods are compared and a suitable one is selected by analyzing the normal security mechanism and data communication characteristics of the charging facilities,as well as the demands of engineering practice.As the embedded system is generally used in the charging facilities to reduce cost and improve reliability,an improved method for the normal one-time pad mode is put forward,in which the key pool technology is used to simplify encryption software,improve efficiency,and increase the difficulty in deciphering ciphertext by increasing redundant data bytes and transmitting message with fixed length on each packet.
出处
《电力系统自动化》
EI
CSCD
北大核心
2011年第9期92-94,共3页
Automation of Electric Power Systems
关键词
电动汽车
充电设施
一次一密
密钥池
electric vehicles
charging facilities
one-time pad
key pool
