Access Authentication and Key Agreement Method for Remote Units of Satellite Integrated Electronic System Based on Bus

Abstract

The invention discloses a remote unit access authentication and key negotiation method of a satellite integrated electronic system based on a bus. Under the structure of a satellite integrated electronic system based on a bus, the access authentication and encryption between subsystem terminals on the bus are realized. key negotiation. The specific steps of the method include: system initialization, submission of user information, key agreement, challenge / response. Considering that it is difficult for the spaceborne integrated electronic system to bear huge computing overhead, the present invention adopts the dynamic password authentication technology and the challenge / response mechanism, which reduces the computational overhead, and can effectively resist eavesdropping, replay and injection attacks at the same time, ensuring that the spaceborne integrated Confidentiality and integrity of data within electronic systems.

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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