Securing Biometric Template using a Hybrid Scheme

Biometric authentication has pulled in significant attention in the course of recent years. Due to the recognition accuracy of biometric verification system, it has been used in various fields. As biometrics used in more and more applications, it is vital to protect the biometric template. Since the biometric characteristics cannot be changed. To avoid this, the biometric template protection techniques are developed. The template protection approaches could be broadly classified as transform based and cryptosystem based approaches. In this paper, we address the issue of security and privacy of the stored biometric template in the database. We propose a novel approach which combines two different approaches namely biohashing and fuzzy extractor. This approach is based on transformation of biometric features which is called as biohashing and a key generating technique called fuzzy extractor. The proposed system provides security and privacy to the biometric templates and also it provides revocable and non- invertible properties to the biometric templates. Experimentation shows the effectiveness of the proposed methods comparing with existing works.