摘要
设计一种能够提供PKG前向安全的基于身份的认证密钥协商协议,在标准模型中证明其具有已知密钥安全、完美前向安全、抗密钥泄露伪装攻击等安全特性。该协议的安全性建立在BDDH假设的基础上,与安全性建立在其他困难问题基础上的同类协议相比,其运算效率相当,安全性更高。
This paper designs an identity-based authenticated key agreement protocol with perfect forward security of Private Key Generator(PKG).It is proved to provide known key security,forward secrecy,key-compromise impersonation and so on in standard model.Its security is based on Bilinear Decisional Diffie-Hellman(BDDH) assumption,so its security is higher than the protocols based on the weaker assumption.
出处
《计算机工程》
CAS
CSCD
北大核心
2010年第23期127-129,共3页
Computer Engineering
基金
国家"863"计划基金资助项目(2007AA0124487)
关键词
认证密钥协商协议
基于身份的加密方案
双线性对
标准模型
authenticated key agreement protocol
Identity-Based Encryption(IBE) scheme
bilinear pairings
standard model