ITR/SI: Quantum Communication and Cryptography: Protocols and Systems

ITR/SI：量子通信和密码学：协议和系统

• 批准号: 0113440
• 负责人: Vwani Roychowdhury
• 金额: $ 37.14万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-08-15 至 2004-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0113440&HistoricalAwards=false
• 关键词: ITR; SI; Quantum; Communication; Cryptography

EIA-0113440Vwani RoychowdhuryUniversity of California at Los AngeleTitle: Quantum Communication and Cryptography: Protocols and SystemsA functional quantum computer would render all public-key cryptographic protocols (e.g., RSA, Diffie-Hellman), used for secure communication over the Internet, insecure; conversely, QKD could save the Internet and enable secure public communication. Similarly, super-dense coding can potentially double the classical capacity of a channel, if the parties could share EPR pairs in advance. This project is aimed at a theoretical study of issues in quantum informatin processing, including (1) algorithms for entanglement purification and distillation, (2) Capacity results for various quantum channels, (3) efficient entanglement manipulation and pure state management via local quantum operations and classical communication (LOCC), (4) quantum key distribution using practical systems, and (5) novel informationally-secure quantum cryptographic protocols that only quantum systems might enable, but are not known to exist using classical cryptographic protocols.

EIA-0113440 Vwani Roychowdhury洛杉矶加州大学标题：量子通信和密码学：协议和系统功能性量子计算机将呈现所有公钥密码协议（例如，RSA，Diffie-Hellman），用于互联网上的安全通信，不安全;相反，QKD可以拯救互联网，实现安全的公共通信。类似地，如果各方可以提前共享EPR对，则超密集编码可以潜在地使信道的经典容量加倍。本项目旨在对量子信息处理中的问题进行理论研究，包括（1）纠缠纯化和蒸馏算法，（2）各种量子信道的容量结果，（3）通过局域量子操作和经典通信（LOCC）进行有效的纠缠操纵和纯状态管理，（4）使用实际系统的量子密钥分配，以及（5）新颖的信息安全的量子密码协议，只有量子系统可能使能该协议，但是不知道使用经典密码协议存在该协议。