Transparency Overlays and Applications
Transparency Overlays and Applications
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DOI：
10.1145/2976749.2978404
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发表时间：
2016-10
期刊：
影响因子：
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通讯作者：
Melissa Chase;S. Meiklejohn
中科院分区：
文献类型：
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作者：
Melissa Chase;S. Meiklejohn
在本文中，我们开始了一个正式的研究透明度，这在最近几年已成为一个越来越重要的要求，人们信任的系统。我们提出了透明覆盖的抽象概念，它可以与任何系统结合使用，以提供可证明的透明度保证，然后将覆盖应用于两种设置：证书透明度和比特币。在后一种设置中，我们表明，使用我们的透明覆盖消除了参与挖掘的需要，并允许用户存储单个小值，而不是整个区块链。我们的透明覆盖一般是从签名方案和一个新的原语，我们称之为动态列表承诺，在实践中可以使用抗冲突哈希函数实例化。
In this paper, we initiate a formal study of transparency, which in recent years has become an increasingly critical requirement for the systems in which people place trust. We present the abstract concept of a transparency overlay, which can be used in conjunction with any system to give it provable transparency guarantees, and then apply the overlay to two settings: Certificate Transparency and Bitcoin. In the latter setting, we show that the usage of our transparency overlay eliminates the need to engage in mining and allows users to store a single small value rather than the entire blockchain. Our transparency overlay is generically constructed from a signature scheme and a new primitive we call a dynamic list commitment, which in practice can be instantiated using a collision-resistant hash function.