상세정보
학술지
Dictionary Attack on Functional Transform-Based Cancelable Fingerprint Templates
- 발행일
- 200910
- 출처
- ETRI Journal, v.31 no.5, pp.628-630
- ISSN
- 1225-6463
- 출판사
- 한국전자통신연구원 (ETRI)
- 협약과제
- 09MS3700, 프라이버시 보호형 바이오인식 시스템 개발, 문기영
- 초록
- Recently, Ratha and others proposed a cancelable biometrics scheme which transforms an original fingerprint template into a new one using a noninvertible transformation. However, we show that the original template is recovered by a dictionary attack if two transformed templates originating from it are revealed. In our attack, we simulate the transformation and construct a set of possible pre-images for each transformed template. Then, we find the correct preimage by computing the intersection of these sets. We present an algorithm implementing this idea as well as successful experimental results.
- KSP 제안 키워드
- Dictionary attack, Transformed template, cancelable biometrics, cancelable fingerprint, fingerprint template