Abstract:
This paper designs an identitybased authenticated key agreement protocol with perfect forward security of Private Key Generator(PKG). It is proved to provide known key security, forward secrecy, keycompromise impersonation and so on in standard model. Its security is based on Bilinear Decisional DiffieHellman(BDDH) assumption, so its security is higher than the protocols based on the weaker assumption.
Key words:
authenticated key agreement protocol,
IdentityBased Encryption(IBE) scheme,
bilinear pairings,
standard model
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。
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
CLC Number:
DING Hui, YAN Xin-Chun. New Identitybased Authenticated Key Agreement Protocol[J]. Computer Engineering, 2010, 36(23): 127-129.
丁辉, 殷新春. 一种新的基于身份的认证密钥协商协议[J]. 计算机工程, 2010, 36(23): 127-129.