CT-ISG: Isotropic Cryptography

CT-ISG：各向同性密码学

• 批准号: 0627579
• 负责人: Matthew Blaze
• 金额: --
• 依托单位: University of Pennsylvania
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-09-01 至 2009-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0627579&HistoricalAwards=false
• 关键词: CT; ISG; Isotropic; Cryptography

PIs: Matthew Blaze and Sampath KannanUniversity of PennsylvaniaThe Isotropic Cryptography project introduces and lays the theoreticaland engineering foundations for information-theoretically securecommunication over open channels that meet certain requirements. Morespecifically, the project identifies and is concerned with {\em isotropic channels,} in which eavesdroppers monitoring the channelare unable to identify the sources and destinations of messages withcertainty. Such channels appear to have very interesting andpromising security properties. Even a partially isotropic channel (inwhich the adversary can identify a message source but only with somebounded certainty) can provide information-theoretic confidentiality.The project's experimental work focuses on designing and analyzingpractical protocols that exploit the isotropic properties ofconventional communication channels (such as local Ethernet,near-field radio and mobile wireless networking). Can (partially orfully) isotropic channels be realized in practice over existingnetwork technologies? The project also lays a theoretical foundationfor isotropic cryptography, studying what assumptions are necessary toimplement protocols for various well-known and new cryptographicprimitives and what the most efficient protocols are for variousprimitives. Finally, the project examines the relationship betweentraditional anonymity networks and Mix networks on the one hand andisotropic channels on the other. Can isotropy be used to provideanonymity and can anonymous networks simulate isotropic channels? Canisotropic approaches be made practical and efficient?

PI：Matthew Blaze和Sampath Kannan宾夕法尼亚大学的各向同性密码学项目介绍并奠定了满足特定要求的开放信道上的信息理论安全通信的理论和工程基础。更具体地说，该项目确定并关注{\em各向同性信道，}其中监听信道的窃听者无法确定消息的来源和目的地。 这样的通道似乎有非常有趣和有前途的安全属性。 即使是部分各向同性的信道（其中对手可以识别消息源，但只有一定的确定性）也可以提供信息理论上的机密性。该项目的实验工作集中在设计和分析利用传统通信信道（如本地以太网，近场无线电和移动的无线网络）的各向同性特性的实用协议。 在现有的网络技术上，（部分或全部）各向同性信道能否在实践中实现？ 该项目还为各向同性密码学奠定了理论基础，研究了为各种已知和新的密码原语实现协议所需的假设，以及为各种原语实现最有效的协议。 最后，该项目研究了传统匿名网络和混合网络之间的关系，一方面和异性信道。各向同性可以用来提供匿名性吗？匿名网络可以模拟各向同性信道吗？ 各向异性方法变得实用和有效？