论文标题
Aquareum：通过区块链和值得信赖的计算增强的集中分类帐
Aquareum: A Centralized Ledger Enhanced with Blockchain and Trusted Computing
论文作者
论文摘要
分布式分类帐系统（即区块链）最近受到了很多关注。他们承诺使相互不信任的参与者能够执行交易，同时提供交易历史记录和审查制度的不变性。尽管分散的分类帐可能会成为一种破坏性的创新，但截至今天，它们遭受了可扩展性，隐私或治理问题的困扰。因此，对于许多重要用例，它们是不适用的，有趣的是，集中的分类帐系统悄悄地获得采用并找到新的用例。不幸的是，集中的分类帐也有几个缺点，例如缺乏有效的验证性或更高的审查和模棱两可的风险。 在本文中，我们提出了Aquareum，这是一种用于消除其主要局限性的集中分类帐的新型框架。通过将可信赖的执行环境与公共区块链平台相结合，Aquareum提供了可公开的可验证，非等级的，审查制度的，私人和高性能的分类帐。 Aquareum分类帐与图灵完整的虚拟机集成在一起，允许任意交易处理逻辑，包括令牌或客户指定的智能合约。即使使用当前现有的技术，Aquareum也已完全实施和部署。
Distributed ledger systems (i.e., blockchains) have received a lot of attention recently. They promise to enable mutually untrusted participants to execute transactions, while providing the immutability of the transaction history and censorship resistance. Although decentralized ledgers may become a disruptive innovation, as of today, they suffer from scalability, privacy, or governance issues. Therefore, they are inapplicable for many important use cases, where interestingly, centralized ledger systems quietly gain adoption and find new use cases. Unfortunately, centralized ledgers have also several drawbacks, like a lack of efficient verifiability or a higher risk of censorship and equivocation. In this paper, we present Aquareum, a novel framework for centralized ledgers removing their main limitations. By combining a trusted execution environment with a public blockchain platform, Aquareum provides publicly verifiable, non-equivocating, censorship-evident, private, and high-performance ledgers. Aquareum ledgers are integrated with a Turing-complete virtual machine, allowing arbitrary transaction processing logics, including tokens or client-specified smart contracts. Aquareum is fully implemented and deployment-ready, even with currently existing technologies.
