Problem
Research questions and friction points this paper is trying to address.
cross-chain access control
permissioned blockchain
blockchain interoperation
end-to-end security
Cross-chain Access Control for Permissioned Blockchain Interoperation
🤖 AI Summary
This study addresses the challenges of access control deficiencies and privacy leakage arising from policy discrepancies during cross-network interactions in permissioned blockchains. To this end, we propose InterAcct, an end-to-end framework that introduces a novel cross-chain request anonymization mechanism. This mechanism maps requests into consortium-level representations to conceal internal sensitive information, while securely restoring responses to their original requesters via inverse mapping upon return, thereby enabling interoperability without privacy exposure. The system integrates permission management, data desensitization, and secure mapping algorithms to ensure confidentiality across the entire communication pipeline. Experimental evaluations demonstrate that the proposed approach achieves effective access control with minimal overhead, maintaining high efficiency and stability even under heavy workloads.
📝 Abstract
As enterprise blockchains become increasingly interconnected, access control must extend beyond the boundaries of a single network. Existing approaches mainly focus on controlling access within one blockchain, while cross-chain interactions involve multiple networks that may follow different access-control policies and administrative rules. In this paper, we propose InterAcct, an end-to-end access-control framework for secure interactions across permissioned blockchain networks. To avoid exposing sensitive internal information, InterAcct converts outgoing requests into a consortium-level representation before they are shared with another network. When a response is returned, the framework securely maps it back to the original requester within the source consortium, preserving confidentiality throughout the interaction. Our experimental results show that InterAcct can enforce end-to-end access control for cross-chain request-response interactions with low additional overhead and can continue to operate effectively as the workload increases.
Innovation
Methods, ideas, or system contributions that make the work stand out.
Cross-chain Access Control
Permissioned Blockchain
Interoperability
Privacy Preservation
End-to-end Framework
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