一个抵制西比尔和分散的市场
A Sybil-Resistant and Decentralized Market Place
摘要：
Ebay等现有的集中式市场使公司能够收集大量可用于操纵用户的个人数据。此外，用户可以频繁地进行欺诈而不会产生严重后果。信誉系统只能部分解决这个问题，因为如果恶意用户的信誉太低，他们可以用新的身份重新加入网络。通过实施西比尔攻击，即，恶意参与者以多个看似不同的身份加入，可以进一步提高自己的声誉。在本文中，我们介绍了MarketPalace。MarketPalace依靠点对点基础设施在交易过程中实现分散的市场。只有在注册时，用户才与中央服务器进行通信，以验证他们不是Sybils。更具体地说，我们的系统利用自我主权身份来检测和破坏同一用户的重复加入。我们实施了MarketPalace，并证明了其在小型区域市场的可行性。
英文摘要：
Existing centralised market places such as Ebay enable companies to gather large amounts of personal data that can be used to manipulate users. Furthermore, users can frequently perform fraud without severe consequence. Reputation systems only solve this problem partially as malicious users can re-join the network with a new identity if their reputation is too low. By performing a Sybil attack, i.e., joining with multiple seemingly distinct identities, malicious participants can further boost their own reputation. In this paper, we present MarketPalace. MarketPalace relies on a peer-to-peer infrastructure to realize a decentralized market place during trading. Only when registering, users communicate with a central server to verify that they are not Sybils. More concretely, our system leverages self-sovereign identity to detect and undermine repeated joins by the same user. We implemented MarketPalace and demonstrated its feasibility for small regional markets.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
