Distributed Trust Computations for Decentralized Systems

去中心化系统的分布式信任计算

• 批准号: 0310499
• 负责人: Samrat Bhattacharjee
• 金额: $ 37.5万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-08-15 至 2007-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0310499&HistoricalAwards=false
• 关键词: Distributed; Trust; Computations; Decentralized; Systems

AbstractThis project will investigate the problem of trust computation (or trust inference) within distributed and completely decentralized systems. Work will specifically focus on trust inference in peer-to-peer networks for distributed resource sharing, where no central authority is assumed. Most systems of this sort are designed based on the assumption that a large fraction of users are "altrusitic" while a smaller percentage of users may be arbitrarily "malicious". This research is intended to address the more realistic case where all users are "selfish" (or "rational"), and are motivated by their own self-interest.This work aims to develop appropriate models for analyzing trust inference in distributed systems; to design efficient protocols and mechanisms to ensure cooperative behavior by the users of the system; and to implement such protocols (and test their effectiveness) within the NICE framework developed at the University of Maryland as well as other existing peer-to-peer applications.Graduate and undergraduate students will be involved in all aspects of this research. Software developed as part of this research will be freely distributed for public use.

摘要该项目将研究分布式和完全去中心化系统中的信任计算（或信任推理）问题。工作将特别关注点对点网络中用于分布式资源共享的信任推理，其中不假设有中央权威。大多数此类系统的设计基于这样的假设：大部分用户是“利他的”，而一小部分用户可能是任意“恶意的”。这项研究旨在解决更现实的情况，即所有用户都是“自私的”（或“理性的”），并受到自身利益的驱动。这项工作旨在开发适当的模型来分析分布式系统中的信任推理；设计有效的协议和机制以确保系统用户的合作行为；并在马里兰大学开发的 NICE 框架以及其他现有的点对点应用程序中实施此类协议（并测试其有效性）。研究生和本科生将参与这项研究的各个方面。作为本研究的一部分开发的软件将免费分发以供公众使用。