Title

Cryptanalysis of a Hierarchical Identity-based Encryption Scheme

Publication Type

Journal Article

Version

Publisher’s Version

Publication Date

4-2010

Abstract

Hierarchical Identity-Based Encryption (HIBE) is a generalization of identity-based encryption that mirrors an organizational hierarchy, and allows the root Private Key Generator (PKG) to distribute the workload of key generations to lower-level PKGs. In Indocrypt'08, Ren and Gu proposed a new HIBE scheme, and claimed that their scheme is fully chosen-ciphertext secure in the standard model. However, by giving a concrete attack, we show that Ren-Gu's HIBE is even not chosen-plaintext secure.

Keywords

hierarchial identity-based encryption, chosen-ciphertext attack, chosen-plaintext attack, information security

Discipline

Information Security

Research Areas

Information Security and Trust

Publication

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences

Volume

E93-A

Issue

4

First Page

854

Last Page

856

ISSN

0917-1673

Identifier

10.1587/transfun.E93.A.854

Publisher

Institute of Electronics, Information and Communication Engineers

Creative Commons License

Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

Additional URL

http://dx.doi.org/10.1587/transfun.E93.A.854

This document is currently not available here.

Share

COinS