Published Paper Details:

Data production for transmission using any form of multimedia, including digital images, text, music, and video, is becoming more and more intriguing. Numerous techniques, including cryptography, are employed to maintain the secrecy, integrity, and confidentiality of sensitive information as well as to prevent unauthorised access. By transforming the original data into cypher data, cryptography protects it from being decrypted or altered when it is received by the recipient. In this study, we employed Arnold Cat Mapping to use confusion schemes to jumble the pixel coordinates of the coloured images. By altering the grey values of the image pixels using the traditional techniques for encrypting and decrypting digital colour images, the shuffling mechanism and diffusion mechanism are coupled to encrypt the scrambled image. The suggested techniques used traditional encryption systems like the hill cypher method and the Vegner substitution cypher system. We discovered that the hill cypher exhibits much greater security and fast speed than other approaches from all experimental and analysis methodologies utilised on some colour images to test the suggested image encryption and decryption methods. Additionally, the cypher pictures' unpredictability was increased, hiding the natural characteristics of the original images.