Improvement on Pretty-Simple Password Authenticated Key-Exchange Protocol for Wireless Networks

Authors:
Ting-Yi Chang;Chou-Chen Yang;Chia-Meng Chen
Affiliations:
Department of Computer and Information Science, National Chiao-Tung University, 1001 Ta Hsueh Road, Hsinchu, Taiwan, R.O.C., e-mail: tychang@cis.nctu.edu.tw;Department and Graduate Institute of Computer Science and Information Engineering, Chaoyang University of Technology, 168, Gifeng E. Rd., Wufeng, Taichung County, Taiwan 413, R.O.C., e-mail: ccyan ...;Graduate Institute of Networking and Communication Engineering, Chaoyang University of Technology, 168, Gifeng E. Rd., Wufeng, Taichung County, Taiwan 413, R.O.C., e-mail: s9130601@mail.cyut.edu.t ...
Venue:
Informatica
Year:
2004

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Abstract

This paper presents an improved method inspired by the recently proposed Pretty-Simple PAKE (Password Authenticated Key-Exchange) protocol, which is already a well-known, robust and simple password authenticated key exchange scheme. In our even more efficient scheme, only the password needs to be negotiated in advance, and the computations have also been simplified. Our scheme is based on the elliptic curve discrete logarithm problem and can gain the benefit from the key block size, speed and security. Since our new scheme is both efficient and fast with a low cost for device storage, it is especially suitable for the wireless network environment.