Cryptanalysis of a Hierarchical Identity-based Encryption Scheme
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
