收稿日期: 2004-09-24
修回日期: 2005-01-27
网络出版日期: 2005-11-15
基金资助
国家自然科学基金项目(60373041,90104034)资助
Improved ID-Based Encryption
Received date: 2004-09-24
Revised date: 2005-01-27
Online published: 2005-11-15
鲁力 , 胡磊 . 改进的基于身份的公钥加密[J]. 中国科学院大学学报, 2005 , 22(6) : 751 -760 . DOI: 10.7523/j.issn.2095-6134.2005.6.015
An improved identity-based encryption (RS-PKC) is proposed to solve the problems of key escorw and revocation about ID-Based encryption.The scheme has adaptively chosen ciphertext security in the random oracle model.The construction of RS-PKC is presented and the security can be reducted to the computational Bilinear Diffie-Hellman assumption.
Key words： ID-Based encryption; semantic security; key revocation; key escrow; random oracle
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