Abstract

Access control plays a crucial role in constructing trust in a system. Particularly, it is imperative to enforce a fine-grained access control mechanism to make the access control framework flexible due to the high complexity of untrustworthy environments such as the Internet of Things (IoT) environments. However, traditional access control techniques can be hardly trusted on account of their centralized enforcements and improper distributed computing mechanisms while facing diverse and intricate threats. Although existing solutions based on public blockchain technology have addressed some issues, new challenges derived from public blockchain technology become noticeable such as low consensus efficiency and delicate incentive mechanism. In this paper, we propose Bloccess, a fine-grained access control framework using permissioned blockchain techniques, which enhances the trust in untrustworthy environments by enforcing a trustworthy access control mechanism. Bloccess provides a unified and user-centric solution for access control in distributed untrustworthy environments and optimizes the decentralized access control management, which significantly ensures the security properties of protected environments in terms of the threat model structured in this paper. We also prove the feasibility and effectiveness of Bloccess by security analysis and the comparison with some related frameworks.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.