摘要
现有的基于身份(ID)认证协议大多在CK模型中被证明是安全的,而CK模型比扩展的CK模型(eCK模型)更弱。基于NAXOS方法,利用双线性对设计了一种新协议,并基于随机预言假设和GBDH假设,在eCK模型中证明了协议的安全性。与其他的基于身份认证协议相比,新协议的计算复杂度和通信复杂度较低;满足主密钥前向安全性和完美前向安全性,并抗密钥泄漏伪装。
Most of the existing Identity-based（ID） authenticated protocols are proven secure in the Canetti-Krawczyk（CK） model which is weaker than the extended Canetti-Krawczyk（eCK） model.Based on NAXOS trick,a new scheme using bilinear pairing was proposed.The security of the scheme was proven in the eCK model under the random oracle assumption and the Gap Bilinear Diffie-Hellman（GBDH） assumption.The proposed protocol was efficient in computational cost and communication round when compared with other solutions.The new protocol also satisfied master key forward security,perfect forward security and anti-key-leak disguise.
出处
《计算机应用》
CSCD
北大核心
2012年第1期95-98,共4页
journal of Computer Applications
基金
国家863计划项目(2009AA012415)
关键词
认证
密钥协商
基于身份
双线性对
随机预言
GBDH假设
authentication
key agreement
Identity-based（ID）
bilinear pairing
random oracle
Gap Bilinear Diffie-Hellman（GBDH） assumption
