Hybrid approach for Image Encryption Using SCAN Patterns and Carrier Images

TL;DR

This paper introduces a hybrid image encryption method combining carrier images generated from alphanumeric keys with SCAN patterns, resulting in highly distorted encrypted images and a reversible decryption process.

Contribution

It presents a novel hybrid encryption technique that combines carrier image creation with SCAN patterns, enhancing image distortion and security.

Findings

Encrypted images are highly distorted, improving security.

The method allows reversible decryption to retrieve original images.

Hybrid approach outperforms traditional SCAN-based encryption.

Abstract

We propose a hybrid technique for image encryption which employs the concept of carrier image and SCAN patterns generated by SCAN methodology. Although it involves existing method like SCAN methodology, the novelty of the work lies in hybridizing and carrier image creation for encryption. Here the carrier image is created with the help of alphanumeric keyword. Each alphanumeric key will be having a unique 8bit value generated by 4 out of 8-code. This newly generated carrier image is added with original image to obtain encrypted image. The scan methodology is applied to either original image or carrier image, after the addition of original image and carrier image to obtain highly distorted encrypted image. The resulting image is found to be more distorted in hybrid technique. By applying the reverse process we get the decrypted image.