Systematic Implementation of ECC Curve 25519 for Enhancing the Finger-Print Security

In today's era, scope for maintaining the security, confidentiality, authentication and privacy of digital data has become prominent factors. On this part, Encryption of images has become a critical part of securing data. Existing algorithms, technologies and models have their own limitations in terms of processing time and efficiency. Elliptic Curve Cryptography, a public key cryptography technique has a unique way of keys creation by mathematical equations on elliptic curve that helps in securing the data. This paper focuses on preprocessing techniques that are important for image encryption and decryption using ECC specially using curve 25519 and Ed25519 curves. Major preprocessing steps involved for ECC technique are image representation conversion, generation of keys, key exchange mechanism. Noise reduction, contrast enhancement, image resizing, color correction, segmentation, feature extraction. In this work the effectiveness of preprocessing techniques and results give comparisons of each algorithm in terms of response time.