Deniable Key Establishment Resistance against eKCI Attacks
Joint Authors
Krzywiecki, Łukasz
Wlisłocki, Tomasz
Source
Security and Communication Networks
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-09-24
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Information Technology and Computer Science
Abstract EN
In extended Key Compromise Impersonation (eKCI) attack against authenticated key establishment (AKE) protocols the adversary impersonates one party, having the long term key and the ephemeral key of the other peer party.
Such an attack can be mounted against variety of AKE protocols, including 3-pass HMQV.
An intuitive countermeasure, based on BLS (Boneh–Lynn–Shacham) signatures, for strengthening HMQV was proposed in literature.
The original HMQV protocol fulfills the deniability property: a party can deny its participation in the protocol execution, as the peer party can create a fake protocol transcript indistinguishable from the real one.
Unfortunately, the modified BLS based version of HMQV is not deniable.
In this paper we propose a method for converting HMQV (and similar AKE protocols) into a protocol resistant to eKCI attacks but without losing the original deniability property.
For that purpose, instead of the undeniable BLS, we use a modification of Schnorr authentication protocol, which is deniable and immune to ephemeral key leakages.
American Psychological Association (APA)
Krzywiecki, Łukasz& Wlisłocki, Tomasz. 2017. Deniable Key Establishment Resistance against eKCI Attacks. Security and Communication Networks،Vol. 2017, no. 2017, pp.1-13.
https://search.emarefa.net/detail/BIM-1203131
Modern Language Association (MLA)
Krzywiecki, Łukasz& Wlisłocki, Tomasz. Deniable Key Establishment Resistance against eKCI Attacks. Security and Communication Networks No. 2017 (2017), pp.1-13.
https://search.emarefa.net/detail/BIM-1203131
American Medical Association (AMA)
Krzywiecki, Łukasz& Wlisłocki, Tomasz. Deniable Key Establishment Resistance against eKCI Attacks. Security and Communication Networks. 2017. Vol. 2017, no. 2017, pp.1-13.
https://search.emarefa.net/detail/BIM-1203131
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1203131