标准模型下基于身份的认证密钥协商协议  

Identity-based authenticated key agreement protocol in standard model

作　　者：叶伟伟[1] 欧庆于[1] YE Wei-wei OU Qing-yu(Department of Information Security, Naval University of Engineering, Wuhan 430033, Chin)

机构地区：[1]海军工程大学信息安全系,湖北武汉430033

出　　处：《计算机工程与设计》2017年第8期2071-2075,共5页Computer Engineering and Design

基　　金：国家自然科学基金项目(11202239);海军工程大学自然科学基金项目(HGDQNEQJJ15016)

摘　　要：目前的大多数认证密钥协商协议安全属性不全面,且多数只能在随机预言模型下证明安全性,为此提出一种基于身份的认证密钥协商协议,具备抗密钥泄露伪装攻击、完全前向安全性、未知密钥共享安全等所有必要的安全属性。在标准模型下将协议的安全性规约到判定性q-ABDHE数学困难假设,协议对比结果表明,该协议的计算效率有所提高,安全性更强。At present, the security properties of most authentication key agreement protocols are not comprehensive, and most of the protocols can only prove the security under the random oracle model. To solve the problem, an identity-based authenticated key agreement protocol was proposed. All basic desirable security properties were captured including, key-compromise impersonation resilience, prefect forward security, unknown key-share resilience, and so on. The security of the proposed protocol was reduced to the q-ABDHE mathematical difficulty hypothesis in the standard model. Comparing with other schemes, results indicate that the protocol has certain advantages on the security and operation efficiency.

关 键 词：基于身份 认证密钥协商 强安全 标准模型 q-ABDHE数学问题 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]