DECENT：一种在在线社交网络中实施隐私保护的去中心化架构
DECENT: A Decentralized Architecture for Enforcing Privacy in Online Social Networks
摘要：
大量的隐私泄露，无论是意外的还是恶意的，都促使用户不信任在线社交网络（OSN）的集中式提供商，并调查分散式解决方案。我们研究了一个完全分散的（点对点）OSN的设计，特别关注隐私和安全。特别是，我们希望保护用户内容的机密性、完整性和可用性以及用户关系的隐私。我们提出DECENT，OSN的架构，使用分布式哈希表存储用户数据，并具有加密保护的机密性和完整性，以及支持灵活的属性策略和快速撤销。DECENT确保数据和社交关系对未授权用户不可见，并通过更新的复制和身份验证提供可用性。我们评估DECENT通过模拟和实验的PlanetLab网络，并表明DECENT是能够复制当前集中式OSN的主要功能与可管理的开销。
英文摘要：
A multitude of privacy breaches, both accidental and malicious, have prompted users to distrust centralized providers of online social networks (OSNs) and investigate decentralized solutions. We examine the design of a fully decentralized (peer-to-peer) OSN, with a special focus on privacy and security. In particular, we wish to protect the confidentiality, integrity, and availability of user content and the privacy of user relationships. We propose DECENT, an architecture for OSNs that uses a distributed hash table to store user data, and features cryptographic protections for confidentiality and integrity, as well as support for flexible attribute policies and fast revocation. DECENT ensures that neither data nor social relationships are visible to unauthorized users and provides availability through replication and authentication of updates. We evaluate DECENT through simulation and experiments on the PlanetLab network and show that DECENT is able to replicate the main functionality of current centralized OSNs with manageable overhead.
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。
