基于PKI和IBC混合构建的公钥应用模式研究  

Research on Public - Key Application Mode Built by PKI and IBC

作　　者：张岩[1] ZHANG Yan(Department of Science ＆ Technology Market, No. 33 Institute of CETC, Taiyuan, 030032, Shanxi, Chin)

机构地区：[1]中国电子科技集团公司第33研究所科技市场处,山西太原030032

出　　处：《电子材料与电子技术》2018年第1期11-16,22,共7页Electronic Material & Electronic Technology

摘　　要：PKI（Public Key Infrastructure）和IBC（Identity—Based Cryptograph）体系是目前研究和使用最多的两种公钥密码技术体系。PKI体系虽得到了广泛的应用，但其证书的使用和管理比较复杂。IBC是一种无证书的公钥密码技术，使用比较简单，但其使用范围有局限性。很多研究希望改进IBC技术来替换PKI体系，但由于两者优缺点存在互补性，如果将两者结合使用，利用IBC简化PKI的证书系统，利用PKI扩展IBC的使用范围。本文通过研究PKI与IBC体系，总结了以往对两者体系的改进方法，提出一种IBC和PKI的混合应用方案，通过两种体系的优势互补，形成一种新的公钥应用模式，解决了征书使用管理复杂的问题，从而能够让用户安全方便的使用公钥密码技术。PKI and IBC are two kinds of public key cryptography systems that have been researched and used most widely. Though PKI system is used in a broad range, the operation and management of the certificate are comparatively complicated. IBC is a certificateless public key cryptography technology, with a relatively easier operation, only the serviceable range is limited. In many researches, IBC technology is expected to be improved to replace PKI system, while with their complementary advantages and disadvantages, if they could be combined, the PKI certificate system could be simplified by the using of IBC and the expansion of the operation of IBC could be extended by the using of PKI. Through the study of PKI system and IBC system and the summarizing of the previous ways of improvement of these two systems, this research proposed a hybrid application project of IBC and PKI, and through their complementary advantages, a new pattern of public key certificate management application is formed, thus the complicated operation and management of the certificate is solved, which could help users apply public key cryptography conveniently and safely.

关 键 词：公钥密码技术 公钥基础设施 标识密码 多安全要素 标识 鉴别 

分 类 号：TN929.5[电子电信—通信与信息系统]