Secure and Privacy Preserving Biometric Authentication Using Watermarking Technique

Biometric authentication ensures user identity by means of users' biometric traits. Though biometrics is unique and secure, it can be still stolen or misused by any adversary. In this paper we propose a secure and privacy preserving biometric authentication scheme using watermarking technique. Watermarking is used for content authentication, copyright management, tamper detection, etc. We watermark the user's face image with finger print and encrypt the watermarked biometric to protect its privacy from adversary. The watermarked biometric technique has been used for privacy preserving authentication purpose. The analysis proves the correctness, privacy and efficiency of our scheme.