| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 461400 | Journal of Systems and Software | 2011 | 7 Pages |
Abstract
Recently, Ren and Gu (2010) proposed an identity-based parallel key-insulated encryption (IBPKIE) scheme, and further extended their IBPKIE scheme to a hierarchical identity-based parallel key-insulated encryption (HIBPKIE) scheme. They claimed that both schemes are secure against adaptive chosen-ciphertext attacks without random oracles. However, in this paper, by giving concrete attacks, we indicate that their schemes are even not secure against chosen-plaintext attacks.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Networks and Communications
Authors
Xu An Wang, Jian Weng, Xiaoyuan Yang, Minqing Zhang,