Information security: Information security itself covers a wide range. It is as big as national military and political secrets, and as small as preventing the secrets of commercial enterprises from leaking, preventing teenagers from browsing bad information and revealing personal information. The information security system under the network environment is the key to ensure information security, including computer security operating system, various security protocols, security mechanisms (digital signature, information authentication, data encryption, etc. ), even the security system, any one of which may threaten global security. Information security service should at least include the basic theory supporting information network security service and the network security service architecture based on the new generation information network architecture.
Traffic engineering: Traffic engineering is the basic theory of traffic engineering research and development, and it is a relatively young discipline derived from road engineering. It studies people, vehicles, roads, environment and energy related to traffic in the unity of road traffic, in order to seek the planning, construction and management scheme of traffic system with the largest road capacity, the least traffic accidents, the fastest running speed, the lowest transportation cost, the least environmental impact and the lowest energy consumption.