Abstract: In current times, generation of cryptographic key from biometrics is more popular due to its enhanced security level. In this paper a method is proposed to generate unique keys for encryption and decryption of secret messages from biometric images. The keys are directly derived from the images and the captured images are not stored anywhere. Fusion of two or more biometric images increases security more as compared to single biometric feature. In this system, Elliptic Curve Cryptography algorithm is used as the cryptosystem and integrated with multi-biometric system for providing authentication in a secured way. Implementation of proposed system involves fusion of multi-biometric images, generation of Elliptic curve cryptographic parameters from that fused Image and generation of curve from generated parameters.

Keywords: Cryptographic key, Biometric, Elliptic Curve Cryptography, Multi-biometric, Elliptic curve parameters.