Security Analysis of an ID-Based Key Agreement for Peer Group Communication

Duc-Liem VO  Kwangjo KIM  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E90-A   No.11   pp.2624-2625
Publication Date: 2007/11/01
Online ISSN: 1745-1337
DOI: 10.1093/ietfec/e90-a.11.2624
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Information Security
group key agreement,  cryptanalysis,  pairings,  impersonation attack,  

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Pairing based cryptography has been researched intensively due to its beneficial properties. In 2005, Wu et al. [3] proposed an identity-based key agreement for peer group communication from pairings. In this letter, we propose attacks on their scheme, by which the group fails to agree upon a common communication key.