UniHand: Privacy-preserving Universal Handover for Small-Cell Networks in 5G-enabled Mobile Communication with KCI Resilience
arxiv(2024)
摘要
Introducing Small Cell Networks (SCN) has significantly improved wireless
link quality, spectrum efficiency and network capacity, which has been viewed
as one of the key technologies in the fifth-generation (5G) mobile network.
However, this technology increases the frequency of handover (HO) procedures
caused by the dense deployment of cells in the network with reduced cell
coverage, bringing new security and privacy issues. The current 5G-AKA and HO
protocols are vulnerable to security weaknesses, such as the lack of forward
secrecy and identity confusion attacks. The high HO frequency of HOs might
magnify these security and privacy concerns in the 5G mobile network. This work
addresses these issues by proposing a secure privacy-preserving universal HO
scheme () for SCNs in 5G mobile communication. can achieve
mutual authentication, strong anonymity, perfect forward secrecy,
key-escrow-free and key compromise impersonation (KCI) resilience. To the best
of our knowledge, this is the first scheme to achieve secure,
privacy-preserving universal HO with KCI resilience for roaming users
in 5G environment. We demonstrate that our proposed scheme is resilient against
all the essential security threats by performing a comprehensive formal
security analysis and conducting relevant experiments to show the
cost-effectiveness of the proposed scheme.
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