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Design of a Fingerprint Template Protection Scheme using Elliptical Structures
Ilaiah Kavati,A. Mallikarjuna Reddy,E. Suresh Babu,K. Sudheer Reddy,Ramalinga Swamy Cheruku 한국통신학회 2021 ICT Express Vol.7 No.4
Although biometric authentication is viewed as more prominent than password or token-based methodology in identity verification, biometric templates are vulnerable to attacks. This paper proposes a new approach for securing fingerprint templates using elliptical structures generated from the fingerprint minutiae. Authors generate a feature vector from the ellipse and will be projected onto a 3D-space to compute a binary string. The resultant binary string is transformed to frequency domain (DFT) and multiplied with a user specific random matrix to make it permanently non-invertible and secure. The results show the efficacy of the proposed method for protecting the fingerprints.