Improvement of existing security system by using elliptic curve and biometric cryptography Biometric systems are systems which have an automated method to measure or analyze biological data, extracting features from the acquired data and comparing it against the templates set in the database. Many authentication schemes involving different biometric systems initialize several identification- and verification-based security methods, and this paper discusses a system which provides secure verification to incorporate the method with elliptical curve cryptography that works on following two points, viz. preventing an elliptic curve and a key using elliptical curve cryptography and the blending of biometric modality. The paper also discusses different approaches to multi-model biometric systems, the levels of fusion that are plausible and the integration of strategies that can be adopted to consolidate information. The unimodal biometric system faces many difficulties, like spooling, attacks, noisy data, etc., but the combination of two or more biometric modalities recognizes anything in a single identification.