Smart Grid Information Security Threats And Defense Technology Research

With the development of society, smart grid appears, the appearance of smart grid greatly facilitates the people’s production and life, but at the same time a growing number of information security risks are threatening the smart grid. Development of smart grid technology is an urgent need to ensure its safe operation. Therefore, the smart grid information security issue is an urgent need for smart grid research problem. The information security of smart grid include the physical security, network security, the data security backups and so on; smard grid also will face many new security problems dueing to multi-network integration.In the paper architecture of the smart grid are introduced and studied, and then analyzes the security risks of smart grid information systems. The access control scheme designed in this paper makes it easy to manage and maintain the key, so that the private key system generated can be safely protected, all devices in the external network attempting to access to the internal grid must complete registration, or will not get access to the interior.On this basis, this paper proposes a data integrity authentication scheme based on Hash function, not only to judge whether the data has been tampered during transmission, but also make a determination whether the message has been forge, this is a good solution to the current smart grid information security problem.