Multimodal biometric encryption using ridge and iris feature map

In modern world communication, securing information is a very important task. Hence Cryptographic systems are integral parts of communication systems in almost all applications. Security requirements demand that these systems be operated with very large secret keys. Since it is very difficult to remember large private keys, these keys are stored by using biometric features and this is called biometric encryption. In this paper we propose a multimodal biometrics based encryption scheme. Here we combine features of fingerprint and iris with a user defined secret key. It is experimentally verified that the proposed system outperforms unimodal biometric encryption systems.