OraclesLink:一个安全使用oracle的架构

2020 Second International Conference on Blockchain Computing and Applications (BCCA) Pub Date : 2020-11-02 DOI:10.1109/BCCA50787.2020.9274455

Benedikt Berger, Stefan Huber, Simon Pfeifhofer

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引用次数: 4

摘要

智能合约编码关键的应用程序逻辑，以防止篡改的形式实现数字协议。区块链保证智能合约在第一次部署后不会被更改，并且严格遵循执行。智能合约只能在链上可用的数据上运行。oracle正在弥合链上和链下数据之间的鸿沟。oracle带来了广泛的安全风险，这些风险已经在公开的黑客攻击中被利用。本文提出了OraclesLink，它是一种在智能合约中使用oracle的安全且对开发人员友好的架构。该体系结构的目标是通过分布消除单点故障和单一的事实来源。为了证明可行性，提供了一个概念验证实现。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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OraclesLink: An architecture for secure oracle usage

Smart contracts encode critical application logic for realizing digital agreements in a tamper-proof form. Blockchains guarantee that smart contracts cannot be altered after the first deployment and that the execution is strictly followed. Smart contracts can only operate on data available on-chain. Oracles are bridging the gap between on-chain and off-chain data. Oracles introduce a wide range of security risks, which were already exploited in publicly known hacks. In this paper OraclesLink is proposed, which is a secure and developer-friendly architecture for using oracles within smart contracts. The goal of the architecture is to eliminate single points of failure and single sources of truth through distribution. In order to demonstrate feasibility, a proof-of-concept implementation is provided.

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2020 Second International Conference on Blockchain Computing and Applications (BCCA)

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