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首页> 外文会议>IEEE Conference on Computer Communications >EncELC: Hardening and Enriching Ethereum Light Clients with Trusted Enclaves
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EncELC: Hardening and Enriching Ethereum Light Clients with Trusted Enclaves

机译：EncELC：使用值得信赖的飞地加强和丰富以太坊轻客户端

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The rapid growth of Ethereum blockchain has brought extremely heavy overhead for coin owners or developers to bootstrap and access transactions on Ethereum. To address this, light client is enabled, which only stores a small fraction of blockchain data and relies on bootstrapped full nodes for transaction retrievals. However, because the retrieval requests are outsourced, it raises several severe concerns about the integrity of returned results and the leakage of sensitive blockchain access histories, largely hindering the wider adoption of this important lightweight design. In addition to security issues, the continuously increasing blockchain storage also urges for more effective query functionalities for the Ethereum blockchain, so as to enable more flexible and precise transaction retrievals.In this paper, we propose EncELC, a new Ethereum light client design that enforces full-fledged protections for clients and enables rich queries over the Ethereum blockchain. EncELC leverages trusted hardware (e.g., Intel SGX) as a starting point for building efficient yet secure processing, and further crafts several crucial performance and security refinement designs to boost query efficiency and conceal leakages inside and outside SGX enclave. We implement a prototype of EncELC and test its performance in several real settings, and the results have confirmed the practicality of EncELC.
机译：以太坊区块链的快速增长给代币所有者或开发者引导和访问以太坊上的交易带来了沉重的开销。为了解决这个问题，启用了轻客户端，该客户端仅存储一小部分区块链数据，并依赖自举的完整节点进行事务检索。但是，由于检索请求是外包的，因此对返回结果的完整性和敏感的区块链访问历史的泄漏提出了一些严重的担忧，这在很大程度上阻碍了这种重要的轻量级设计的广泛采用。除了安全问题外，不断增长的区块链存储还敦促以太坊区块链具有更有效的查询功能，以实现更灵活，更精确的交易检索。为客户提供全面的保护，并实现对以太坊区块链的丰富查询。 EncELC利用受信任的硬件（例如Intel SGX）作为构建高效而安全的处理的起点，并进一步制定了一些关键的性能和安全改进设计，以提高查询效率并掩盖SGX内部和外部的泄漏。我们实现了EncELC的原型，并在多个实际环境中测试了其性能，结果证实了EncELC的实用性。

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