Paper Contents
Abstract
In todays era of digital communication, the secure transmission of images is a significant concern due to vulnerabilities in existing encryption techniques. The Hill Cipher, a symmetric encryption algorithm, offers computational efficiency but is limited by the need to share private keys over unsecured channels, making it susceptible to attacks. Elliptic Curve Cryptography (ECC), on the other hand, is an asymmetric encryption technique known for its high security and computational efficiency. This paper introduces a novel hybrid image encryption technique that combines ECC and the Hill Cipher to enhance security and efficiency. The proposed system transforms the Hill Cipher into an asymmetric encryption method using ECC-generated keys, thus eliminating the need to exchange private keys. A self-invertible key matrix is used to streamline the decryption process, reducing computational overhead. The hybrid techniques performance is evaluated using metrics such as Entropy, Peak Signal-to-Noise Ratio (PSNR), and Unified Average Changing Intensity (UACI). Experimental results reveal that the proposed system achieves robust encryption with high security and computational efficiency, making it suitable for real-time multimedia and embedded system applications. the demand for effective image encryption techniques has surged, driven by the increasing reliance on the internet and various communication platforms for sharing sensitive visual content. The transmission of important images over unsecured channels poses significant risks, including potential attacks and unauthorized access. To mitigate these threats, encryption methods have emerged as essential tools for safeguarding images against malicious activities.
Copyright
Copyright © 2024 B. Sai Gopinadh. This is an open access article distributed under the Creative Commons Attribution License.
