关键词: 密码资源调度, 服务映射, 分块调度, 可重构密码服务, 天基接入节点, 天地一体化网络

Abstract: Access authentication and secure transmission are key methods to guarantee security of space-ground integrated network. To settle the problems of limited cryptography resources and low resource utilization rate while massive end-users request cryptography services simultaneously, a two-level cryptography resources scheduling algorithm based on service mapping and blocks scheduling is proposed. This algorithm utilizes the feature that reconfigurable cryptography service could implement as blocks, and maps all blocks of cryptography services to correspondent resources’ waiting queue by a modified cuckoo search scheduling algorithm. Then, it schedules and locally optimizes the blocks in waiting queue by introducing a rule named “blocks with least influence first”. Experiment results suggest that our algorithm efficiently improves the crypto-graphy resources utilization rate and execution efficiency of concurrent cryptography services.

Key words: cryptography resource scheduling, service mapping, blocks scheduling, reconfigurable cryptography service, space-based access point, space-ground integrated network