Satellite comprehensive electronic system remote unit access authentication and key negotiation method based on bus

Abstract

The invention discloses a satellite comprehensive electronic system remote unit access authentication and key negotiation method based on a bus. Under a satellite comprehensive electronic system structure based on the bus, access authentication and key negotiation between subsystem terminals on the bus are realized. The method comprises the specific steps of initializing a system; submitting userinformation; carrying out key negotiation; and carrying out challenge / response. The condition that a satellite-borne comprehensive electronic system is difficult to bear enormous computing cost is taken into consideration, and according to the method, a dynamic password authentication technology and a challenge / response mechanism are employed, so the computing cost is reduced, moreover, eavesdropping, replaying and injection attacks can be effectively resisted, and confidentiality and integrity of data in the satellite-borne comprehensive electronic system are ensured.

Description

technical field [0001] The invention belongs to the technical field of information security, in particular to a method for access authentication and key agreement of a remote unit of a satellite integrated electronic system based on a bus. Background technique [0002] The satellite platform designed based on the idea of ​​integrated satellite is an integrated electronic system integrating internal information sharing, function integration and resource optimization. A satellite platform consists of multiple service systems, which can support one or more payloads. No matter which payload is installed, except for specific performance indicators, the basic functions of the satellite platform are the same. At present, many countries in the world have adopted the design concept of public satellite platforms in satellite development. Common satellite platforms are versatile and can accommodate different payload requirements within reason. There are two main issues in satellite ...

AI Technical Summary

Problems solved by technology

There are two main issues in satellite platform design: effectively controlling the growing payload and providing efficient management for the platform itself

For example: although the digital certificate signature authentication technology based on elliptic curve is very secure, it is widely used by banks and other financial institutions for user identity authentication, but it has extremely high requirements for computing resources and memory resources, and is not suitable for on-board integrated electronic systems. system

The current rapid development of identity authentication based on biometrics cannot be used in the spaceborne integrated electronic system, because the extraction of biometric features cannot be realized on the spaceborne integrated electronic system

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