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.
出处
《计算机科学》
CSCD
北大核心
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