A Secure ID-Based Ezplicit Authenticated Key Agreement Protocol without Key Escrow

摘要：

Key agreement protocols are essential for secure communications in open and distributed environments. Identity-based cryptography has become extremely fashionable in the last few years for its special advantages. In this paper, we point out some flaw in the scheme proposed by Wang et al., then we present a two-party identity-based explicit authenticated key agreement protocol with key confirmation, which was inspired on a new identity-based encryption scheme first proposed by Gentry and can be used properly in the escrowless mode. The scheme captures the attributes of known-key secrecy, key-compromise impersonation resilience, unknown key-share resilience, perfect forward secrecy, and no-key control. Especially, the scheme captures the PKG forward secrecy property. The PKG still could not recover all the userspast session keys even he knows the long-term private keys of all users.

关键词： key agreement protocol identity-based cryptography key escrow perfect forward secrecy

作者: Mengbo Hou Qiuliang Xu

作者单位: School of Computer Science and Technology Shandong University Jinan,250101,China

会议类型: 国际会议

会议名称: The Fifth International Conference on Information Assurance and Security(第五届信息保障与安全国际会议)

会议地点: 西安

会议语种:英文

页码: 487-490

在线出版日期: 2009-08-18（万方平台首次上网日期，不代表论文的发表时间）