Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
394938 | Information Sciences | 2011 | 7 Pages |
Abstract
Certificateless signcryption is a useful primitive which simultaneously provides the functionalities of certificateless encryption and certificateless signature. Recently, Liu et al. [15] proposed a new certificateless signcryption scheme, and claimed that their scheme is provably secure without random oracles in a strengthened security model, where the malicious-but-passive KGC attack is considered. Unfortunately, by giving concrete attacks, we indicate that Liu et al. certificateless signcryption scheme is not secure in this strengthened security model.
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Related Topics
Physical Sciences and Engineering
Computer Science
Artificial Intelligence
Authors
Jian Weng, Guoxiang Yao, Robert H. Deng, Min-Rong Chen, Xiangxue Li,