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General Information
Prof. Wael Badawy
Department of Computing and Information Systems Umm Al Qura University, Canada
I'm happy to take on the position of editor in chief of IJCTE. We encourage authors to submit papers concerning any branch of computer theory and engineering.
IJCTE 2016 Vol.8(2): 129-135 ISSN: 1793-8201
DOI: 10.7763/IJCTE.2016.V8.1031

Network-Specific Attacks on Diffie-Hellman Key-Exchange in Commercial Protocols

Iraj Fathirad, John Devlin, and Sepidehsadat Atshani
Abstract—An efficient and reliable key-establishment method is the most important building block of any secure cryptographic channels. Public-key cryptography was a revolution in cyber security key administration and enabled peers to dynamically create keys for each cryptographic session. The Diffie-Hellman (DH) algorithm is the first published public-key cryptosystem. DH and its variants are extensively investigated, standardized, and widely used in network security protocols. However, DH is vulnerable to some concerning mathematical, implementation-related and network-specific attacks. Defending against these attacks is important in secure implementation of DH in network protocols. This paper categorizes various attacks on DH scheme with focuses on attacks related to the DH integration in network protocols (referred as network-specific attacks). Furthermore, we comparatively review the approaches taken by commercial protocols to tackle network attacks and analyze the strength of these solutions.

Index Terms—Key-exchange, DH, ECDH, MiTM, DoS, reply attack, SSH, ZRTP, SSL/TLS, IPsec, IKEv2.

Iraj Fathirad and John Devlin are with the Department of Electronic Engineering, La Trobe University, Victoria 3086, Australia (e-mail: I.fathirad@latrobe.edu.au, J.devlin@latrobe.edu.au).
Sepidehsadat Atshani is with Faculty of Business, Economics and Law, La Trobe University, Victoria 3086, Australia (e-mail: satshani@students.latrobe.edu.au).


Cite:Iraj Fathirad, John Devlin, and Sepidehsadat Atshani, "Network-Specific Attacks on Diffie-Hellman Key-Exchange in Commercial Protocols," International Journal of Computer Theory and Engineering vol. 8, no. 2, pp. 129-135, 2016.

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