- 期刊
Multi-user Keyword Searchable Signcryption Scheme in Heterogeneous 5G Network Slicings
摘要
The technology of 5G network slicings (5GNS) offers convenience for storing and sharing data in the cloud. To ensure data security and availability, the cloud data necessitates a signcryption scheme with keyword search. Furthermore, diverse 5GNS typically incorporate distinct cryptographic systems. Nevertheless, there are limited heterogeneous signcryption schemes that enable multiple users to conduct keyword searches. To address this issue, this paper introduces a multi-user keyword searchable signcryption (MUKSS) scheme within a heterogeneous 5GNS environment. In the MUKSS scheme, a data owner in a certificateless cryptographic system (CLC) can signcrypt the keyword for multiple users using an identity-based cryptographic system (IBC). Furthermore, a rigorous security analysis demonstrates that the MUKSS scheme ensures confidentiality, integrity, and unforgeability. Moreover, the MUKSS scheme is demonstrated to be resistant to keyword guessing attacks. Based on the efficiency analysis, the MUKSS shceme proves to be better suited for the heterogeneous 5GNS environment when compared to the seven most recent schemes.