The invention discloses a distributed access
authentication management method in a LEO
satellite network, which adopts an identity-based cryptographic
system, uses the private key of the
key generation center to quickly generate the public-private key pair of the user and the
satellite node, and stores the public-private key pair in the identification field The identity information is agreed in the
system to realize the role distinction in the
system; at the same time, based on the chain distributed storage technology of the
blockchain, a trusted chain with the
key generation center and the
satellite as the main body of trust is constructed to realize
rapid access authentication of users and fast inter-satellite The
handover identity
verification function adapts to the characteristics of dynamic topology and frequent
handover of satellite-ground links in the LEO
satellite network. On the other hand, this method adopts the distributed storage technology of the block chain, and uses the trust chain as the
consensus mechanism to
record relevant information such as user registration, logout, login, logout, and switching, and to ensure the accuracy, integrity, and accuracy of user logs. Consistency,
traceability and non-tampering, avoiding the
bottleneck of the
central node in the access function and
authentication performance.