Searchable and secure edge pre-cache scheme for intelligent 6G wireless systems.

Driven by artificial intelligence and network communication technology, intelligent 6G wireless systems have gradually become an important environment for users to enjoy data services in the future. However, edge computing enabled 6G wireless systems still have some open issues on the searchability of outsourced data and security of user information. In this paper, a multidimensional storage structure with encrypted is proposed for data with various categories in intelligent 6G wireless systems. A two-tuple storage table is utilized to compress the block location matrix of the storage structure. Additionally a searchable and secure edge pre-cache scheme is proposed. Edge nodes cache the data requested by the user in advance according to the user's location and direction. The users in the novel scheme are proved to be unforgeable and anonymous. The experiments show that the scheme is efficient on the user side and the time cost of the edge node indicates that the scheme is low latency.(c) 2022 Elsevier B.V. All rights reserved.