July 29, 2021

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Anonymous Blockchain-based System for Consortium. (arXiv:2107.08279v1 [cs.CR])

Blockchain brings various advantages to online transactions. However, the
total transparency of these transactions may leakage users’ sensitive
information. Requirements on both cooperation and anonymity for
companies/organizations become necessary. In this paper, we propose a
Multi-center Anonymous Blockchain-based (MAB) system, with joint management for
the consortium and privacy protection for the participants. To achieve that, we
formalize the syntax used by the MAB system and present a general construction
based on a modular design. By applying cryptographic primitives to each module,
we instantiate our scheme with anonymity and decentralization. Furthermore, we
carry out a comprehensive formal analysis of the proposed solution. The results
demonstrate our constructed scheme is secure and efficient.