An Improved ID-based Anonymous Authentication Scheme for Wireless Body Area Networks

Abstract

Wireless Body Area Networks is an environment that provides an appropriate service remotely by collecting user’s biometric information. With the growing importance of sensor, WBAN also attracts extensive attention. Since WBAN is representatively used in the medical field, it can be directly related to the patient’s life. Hence security is very important in WBAN. Mutual authentication between the client and the application provider is essential. And efficiency is also important because a used device is limited to computation cost. In this reason, ID-based anonymous authentication scheme in WBAN has been intensively studied. We show that the recent research result of Wu et al. which is about the ID-based anonymous authentication scheme is vulnerable to impersonation attack. And we propose a new ID-based anonymous authentication scheme that is secure against the attacks discovered in the existing schemes. Compared to the existing schemes, the computation cost of our scheme is improved by 30.6% and 7.3%. 키워드 : 무선 신체 영역 네트워크, 익명성, 상호 인증, 위장 공격 Key word : Wireless Body Area Networks, Anonymity, Mutual Authentication, Impersonation Attack Received 10 November 2016, Revised 10 November 2016, Accepted 26 November 2016 * Corresponding Author Dong Hoon Lee(E-mail:donghlee@korea.ac.kr, Tel:+82-2-3290-4997) Graduate School of Information Security, Korea University, Seoul 02841, Korea Open Access http://doi.org/10.6109/jkiice.2017.21.2.322 print ISSN: 2234-4772 online ISSN: 2288-4165 This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License(http://creativecommons.org/li-censes/ by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Copyright C The Korea Institute of Information and Communication Engineering. Journal of the Korea Institute of Information and Communication Engineering WBAN 환경에서의 개선된 ID 기반 익명 인증 기법