一种FPGA上防重放攻击的远程比特流更新协议的分析改进  

Analysis and Improvement of Remote Bitstream Update Protocol Preventing Replay Attacks on FPGA

作　　者：李磊[1] 陈静[1] 张志鸿[1] 

机构地区：[1]郑州大学信息工程学院,郑州450001

出　　处：《计算机科学》2013年第8期149-150,195,共3页Computer Science

基　　金：国家863计划重点项目(2009AA012201)资助

摘　　要：Devic等提出的防重放攻击的远程比特流更新协议在密钥分发、密钥更新和存储方面具有较低的效率。提出了一种改进协议,它利用密钥链取得请求密钥和确认密钥。改进协议可有效提高密钥管理的效率,降低协议参与方的存储负担。分析表明,改进协议满足机密性和完整性,且能够防止重放攻击。The remote bitstream update protocol preventing replay attacks on FPGA proposed by Devic et al has a lower efficiency in the key distribution, updating and storage. We proposed an improved protocol which utilizes key chains to obtain keys for request and acknowledgement. The improved protocol can improve the efficiency of key management, and reduce the storage requirements of participants. Technical discussions show that the improved protocol ensures con- fidentiality, integrity, and prevents replay attacks.

关 键 词：安全协议 比特流更新 FPGA 重放攻击 密钥链 

分 类 号：TN918.1[电子电信—通信与信息系统]