Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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An Improved ID-based Anonymous Authentication Scheme for Wireless Body Area Networks

WBAN 환경에서의 개선된 ID 기반 익명 인증 기법

  • Jeong, Min-Soo (Graduate School of Information Security, Korea University) ;
  • Suk, Jae Hyuk (Graduate School of Information Security, Korea University) ;
  • Lee, Dong Hoon (Graduate School of Information Security, Korea University)
  • Received : 2016.11.10
  • Accepted : 2016.11.26
  • Published : 2017.02.28
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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%.

WBAN(Wireless Body Area Networks)은 센서를 통해 사용자의 생체 정보를 수집하고 사용자가 요구하는 서비스를 제공해주는 환경을 말한다. 센서의 중요성이 점차 높아짐에 따라 WBAN 또한 주목받고 있다. WBAN은 대표적으로 의료 분야에서 사용되고 환자의 생명과 직결될 수 있다는 문제를 가지고 있기 때문에 안전성은 매우 중요하다. 또한 WBAN에서 사용되는 기기는 연산량에 제한이 있기 때문에 효율성도 매우 중요하게 고려되어야 한다. 이에 따라 WBAN 환경에서의 ID 기반 익명 인증에 관한 연구가 최근 활발하게 진행되고 있다. 본 논문에서는 최근 Wu et al.이 제안한 WBAN 환경에서의 ID 기반 익명 인증 기법이 위장 공격에 취약하다는 것을 보인다. 그리고 Wu et al. 기법 등 이전에 제안되었던 기법들에 대해서 밝혀진 공격에 안전한 새로운 ID 기반 익명 인증 기법을 제안한다. 본 논문에서 제안한 기법은 이전에 제안된 기법들과 비교해서 30.6%, 7.3%만큼 연산량이 개선되었다.

Keywords

References

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