Cryptanalysis of a Hierarchical Identity-based Encryption Scheme

Author

Jian WENG, Singapore Management UniversityFollow
Min-Rong CHEN, Shenzhen University
Kefei CHEN, Shanghai Jiao Tong University
Robert H. DENG, Singapore Management UniversityFollow

Publication Type

Journal Article

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

Cybersecurity

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

Citation

WENG, Jian; CHEN, Min-Rong; CHEN, Kefei; and DENG, Robert H.. Cryptanalysis of a Hierarchical Identity-based Encryption Scheme. (2010). IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. E93-A, (4), 854-856.
Available at: https://ink.library.smu.edu.sg/sis_research/1305

Additional URL

https://doi.org/10.1587/transfun.E93.A.854