Revocable Identity-Based Encryption with Rejoin Functionality

被引：6

作者：

Seo, Jae Hong ^{[1
]}

Emura, Keita ^{[2
]}

机构：

[1] Myongji Univ, Dept Math, Yongin 449728, Gyeonggi Do, South Korea

[2] Natl Inst Informat & Commun Technol NICT, Network Secur Res Inst, Koganei, Tokyo 1848795, Japan

来源：

IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES | 2014年 / E97A卷 / 08期

关键词：

Revocable Identity-Based Encryption; scalability; rejoin functionality;

D O I：

10.1587/trnasfun.E97.A.1806

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

In the Identity-Based Encryption (B3E) setting, the rejoin functionality seems to be impossible since each user has the unique identity as its public key. Moreover, sometimes these identities are unchangeable, e.g., biological information (finger print iris, and so on) is regarded as the identity. Even if changeable value is indicated as an identity, e.g., e-mail address, it is preferable that the same identity can be used after a secret key is leaked. In this paper, we give a formal security definition of MEE with the rejoin functionality, and also show that the Seo-Emura RISE scheme [PKC 2013] (with a slight modification) has the rejoin functionality.

引用

页码：1806 / 1809

页数：4

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