CAREER: Models and Cryptographic Protocols for Unstructured, Decentralized Systems

职业：非结构化、去中心化系统的模型和加密协议

• 批准号: 0447075
• 负责人: Jonathan Katz
• 金额: $ 40万
• 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: 2005
• 资助国家: 美国
• 起止时间: 2005-02-01 至 2013-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0447075&HistoricalAwards=false
• 关键词: CAREER; Models; Cryptographic; Protocols; Unstructured

TITLE: CAREER: Models of Cryptographic Protocols for Unstructured, Decentralized SystemsINSTITUTION: University of Maryland, College ParkPRINCIPAL INVESTIGATOR: Katz, JonathanPROPOSAL NUMBER: CNS-0447075 ABSTRACT FOR AWARDUnstructured, decentralized systems --- including ad-hoc/sensor networks and peer-to-peer networks --- are emerging as a central focus of computer science research. Methods for securing these systems are critical; however, these systems differ markedly from classical distributed systems (which are, in comparison, more ``structured'' and well-organized) and thus current cryptographic models and mechanisms are simply not sufficient for addressing the full range of security requirements.This work aims to provide solid theoretical foundations as well as novel cryptographic protocols and primitives for this new area. In particular, research focuses on (1) new models for formally reasoning about, and rigorously proving the security of, various applications within unstructured, decentralized systems; (2) issues of ``trust'' and ``reputation'' within such systems; and (3) new cryptographic protocols emphasizing both efficiency (for potential use by resource-limited devices within, e.g., ad-hoc networks) as well as new security concerns (such as anonymity) arising in multi-user distributed environments.The models and techniques developed as part of this work are expected to be broadly applicable to security problems arising in many distributed systems, and it is hoped that this work will serve as an impetus for future research in this area, while providing suitable tools and frameworks within which such research can be performed. Results will be incorporated into graduate-level courses and presented at a ``crypto reading group'' being organized at the University of Maryland; they will be further disseminated to a wide audience at conferences and via publicly-available lecture notes.

标题：职业：非结构化、去中心化系统的密码协议模型研究机构：马里兰州大学帕克分校主要研究者：Katz，Jonathan提案编号：CNS-0447075 非结构化的、分散的系统--包括ad-hoc/传感器网络和对等网络--正在成为计算机科学研究的中心焦点。 保护这些系统的方法是至关重要的，然而，这些系统显着不同于经典的分布式系统（相比之下，更“结构化”和良好的组织），因此目前的密码模型和机制根本不足以解决全方位的安全需求。这项工作的目的是提供坚实的理论基础，以及新的密码协议和原语，这一新的领域。 特别是，研究集中在（1）正式推理的新模型，并严格证明安全性，各种应用程序在非结构化，分散的系统;（2）“信任”和“声誉”的问题，在这样的系统;和（3）新的密码协议，强调效率（为潜在的使用资源有限的设备内，例如，ad-hoc网络）以及新的安全问题（例如匿名性）。作为这项工作的一部分开发的模型和技术预计将广泛适用于许多分布式系统中出现的安全问题，并希望这项工作将成为该领域未来研究的推动力，同时提供可以进行此类研究的合适工具和框架。研究结果将被纳入研究生课程，并在马里兰州大学组织的“加密阅读小组”上展示;它们将在会议上和通过公开的讲义进一步传播给广大受众。