For Full-Text PDF, please login, if you are a member of IEICE,|
or go to Pay Per View on menu list, if you are a nonmember of IEICE.
Modeling Leakage of Ephemeral Secrets in Tripartite/Group Key Exchange
Mark MANULIS Koutarou SUZUKI Berkant USTAOGLU
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/01/01
Online ISSN: 1745-1337
Print ISSN: 0916-8508
Type of Manuscript: Special Section PAPER (Special Section on Cryptography and Information Security)
Category: Public Key Based Protocols
group key exchange, group-oriented extended Canetti-Krawczyk model, tripartite key exchange, gap Bilinear Diffie-Hellman assumption, random oracle model,
Full Text: PDF(461.1KB)
>>Buy this Article
We propose a security model, referred as g-eCK model, for group key exchange that captures essentially all non-trivial leakage of static and ephemeral secret keys of participants, i.e., group key exchange version of extended Canetti-Krawczyk (eCK) model. Moreover, we propose the first one-round tripartite key exchange (3KE) protocol secure in the g-eCK model under the gap Bilinear Diffie-Hellman (gap BDH) assumption and in the random oracle model.