Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Invariant Iris Code extraction for generating cryptographic key based on Fuzzy Vault

퍼지볼트 기반의 암호 키 생성을 위한 불변 홍채코드 추출

  • Lee, Youn-Joo (Department of Electrical and Electronic Engineering, Yonsei University, Biometrics Engineering Research Center) ;
  • Park, Kang-Ryoung (Division of Media Technology, Sangmyung University, Biometrics Engineering Research Center) ;
  • Kim, Jai-Hie (Department of Electrical and Electronic Engineering, Yonsei University, Biometrics Engineering Research Center)
  • 이연주 (연세대학교 전기전자공학과, 생체인식연구센터) ;
  • 박강령 (상명대학교 미디어학부, 생체인식연구센터) ;
  • 김재희 (연세대학교 전기전자공학과, 생체인식연구센터)
  • Published : 2006.06.21
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Abstract

In this paper, we propose a method that extracts invariant iris codes from user's iris pattern in order to apply these codes to a new cryptographic construct called fuzzy vault. The fuzzy vault, proposed by Juels and Sudan, has been used to manage cryptographic key safely by merging with biometrics. Generally, iris data has intra-variation of iris pattern according to sensed environmental changes, but cryptography requires correctness. Therefore, to combine iris data and fuzzy vault, we have to extract an invariant iris feature from iris pattern. In this paper, we obtain invariant iris codes by clustering iris features extracted by independent component analysis(ICA) transform. From experimental results, we proved that the iris codes extracted by our method are invariant to sensed environmental changes and can be used in fuzzy vault.

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