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.
翻译：然而,这些交易的完全透明性可能会泄露用户的敏感信息。 公司/组织的合作和匿名要求是必要的。 在本文件中,我们提议建立一个多中心匿名链(MAB)系统,对财团实行联合管理和对参与者实行隐私保护。为此,我们将MAB系统使用的语法正式化,并基于模块设计提出一个总体结构。通过对每个模块应用加密原始技术,我们以匿名和分散化的方式对我们的计划进行反省。此外,我们对拟议的解决方案进行全面的正式分析,结果显示我们构建的计划是安全有效的。
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