Design of Power System Key Management Infrastructure

There are multiple key management centers in power system due to historical and other aspects, and most key management centers are dispersed and serve different information security systems. It has not been implemented that key management centers are centralized management. And it is necessary to establish trust-based network system based on cryptographic techniques and achieve a safe and reliable access, transfer and application in network. We should build the infrastructure covering key management according to the requirements of the network, facilities and standardization to provide key support services for the certificate system, multiple key devices and key applications. Centralized key management is conducive to the protection of the business systems and reduces of duplication construction. This paper makes a structural design of key management infrastructure according to existing problems and actual demand of power business systems to provide support services for the currently running certificate system and key applications.