论文标题
wedgechain：一家具有异步（懒惰）信任的值得信赖的边缘云商店
WedgeChain: A Trusted Edge-Cloud Store With Asynchronous (Lazy) Trust
论文作者
论文摘要
我们提出了wedgechain，这是一个跨越边缘和云节点（边缘云系统）的数据存储。 wedgechain由记录层和数据索引层组成。在这项研究中，我们遇到了两个挑战：（1）边缘节点是不受信任的，并且可能是恶意的，并且（2）边缘云协调昂贵。 Wedgechain通过以下建议解决这些挑战：（1）懒惰（异步）认证：在不受信任的边缘投入数据，然后在云节点上懒惰地认证。这种懒惰的认证方法利用了这样的观察，即如果知道它将最终被检测（并受到惩罚），则不太可能采取恶意行动。我们的懒惰认证方法确保最终发现恶意行为（即说谎）。 （2）无数据认证：我们的懒惰认证方法只需要将数据摘要发送到云中，而不是将所有数据发送到云，这可以保存网络和云资源并降低成本。 （3）LSMERKLE：我们扩展了一个受信任的索引（MLSM），以在利用懒惰和无数据认证的同时，在边缘启用索引数据。
We propose WedgeChain, a data store that spans both edge and cloud nodes (an edge-cloud system). WedgeChain consists of a logging layer and a data indexing layer. In this study, we encounter two challenges: (1) edge nodes are untrusted and potentially malicious, and (2) edge-cloud coordination is expensive. WedgeChain tackles these challenges by the following proposals: (1) Lazy (asynchronous) certification: where data is committed at the untrusted edge and then lazily certified at the cloud node. This lazy certification method takes advantage of the observation that an untrusted edge node is unlikely to act maliciously if it knows it will be detected (and punished) eventually. Our lazy certification method guarantees that malicious acts (i.e., lying) are eventually detected. (2) Data-free certification: our lazy certification method only needs to send digests of data to the cloud, instead of sending all data to the cloud, which enables saving network and cloud resources and reduce costs. (3) LSMerkle: we extend a trusted index (mLSM) to enable indexing data at the edge while utilizing lazy and data-free certification.
