Journal of KIISE (정보과학회 논문지)

Korean Institute of Information Scientists and Engineers (한국정보과학회)
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A Fingerprint Verification System Based on Fuzzy Vault and Steganography for Smartphone

퍼지볼트와 스테가노그래피를 이용한 스마트폰 지문 인증 시스템

  • 남한솔 (이화여자대학교 컴퓨터공학과) ;
  • 김애영 (이화여자대학교 컴퓨터공학과) ;
  • 이상호 (이화여자대학교 컴퓨터공학과)
  • Received : 2014.07.17
  • Accepted : 2015.01.01
  • Published : 2015.04.15
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Abstract

This paper proposes a fingerprint verification system on a fuzzy vault with steganography for a smartphone. While biometric-based authentication can provide strong security, the biometric data must be handled carefully as it cannot be re-enrolled when it is revealed to other people. When the transformed data is used for authentication, the original biometric data can be protected. In this paper, we combine a fingerprint verification system with a fuzzy vault scheme to protect the fingerprint data of a smartphone user. In addition, the transformed data using a fuzzy vault scheme increases the security as it is concealed by the steganography scheme. The result of the experiment using fingerprint databases shows that the proposed scheme provides a high level of convenience and security for authentication of a smartphone having with a fingerprint sensor.

본 논문에서는 퍼지볼트와 스테가노그래피를 결합한 스마트폰 지문 인증 시스템을 제안한다. 생체정보를 이용한 인증은 높은 보안성을 제공하지만 생체정보는 타인에게 노출되면 수정이 불가능하다는 점에서 안전하게 다루어져야 한다. 만약 인증을 위해 변형된 생체정보가 사용된다면, 생체정보가 노출되더라도 원래의 생체정보는 안전하게 유지될 수 있다. 본 논문에서 제안하는 기법은 스마트폰에서 지문정보를 보호하기 위해 지문 인증 시스템에 퍼지볼트 기법을 적용한다. 또한, 퍼지볼트로 변형된 생체정보는 스테가노그래피 기법과 결합하여 은닉되므로 정보 노출에 더욱 안전할 수 있다. 그에 따라 지문 DB를 이용한 실험 결과는 기존에 알려진 이 두 기법을 결합한 방법이 지문 인식 센서를 가지고 있는 스마트폰의 사용자 인증에 높은 편리성과 보안성을 제공함을 보여준다.

Keywords

Acknowledgement

Supported by : 한국연구재단

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