LIU Wen-ju1, ZHANG Jun-wei2, MA Jian-feng2, et al. Security model for ID-based key exchange[J]. 2010, 31(3): 89-94.DOI：
基于身份密钥交换的安全模型
摘要
研究了基于身份的密钥交换协议的可证明安全问题。在通用可组合安全框架下
提出了基于身份密钥交换协议的模型。在攻击模型中
添加了攻陷密钥生成中心的能力。根据基于身份密钥交换的特点
设计了基于身份密钥交换的理想函数。在新的攻击模型和理想函数下
提出的模型既保证了基于身份密钥交换的通用可组合安全性
又保证了一个重要的安全属性——密钥生成中心前向保密性。此外
带有密钥确认属性的Chen-Kudla协议可以安全实现基于身份密钥交换的理想函数。
Abstract
The provable security of ID-based key exchange protocols was investigated. In the universally composable framework
the provable secure model of ID-based key exchange was proposed. The ability of the adversary to corrupt key generation center was added to the adversary model. According to the characteristics of ID-based key exchange
the ideal functionality of ID-based key exchange was presented. Based on the adversary model and the ideal functionality
the proposed model captures not only the universally composable security of ID-based key exchange
but also implies one of the important properties of ID-based key exchange——key generation center forward secrecy. In addition
the protocol （with key confirmation） proposed by Chen and Kudla can securely realize the functionality of ID-based KE with KGC-FS.
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