Enhancing Digital Image Security using Visual Cryptography Integrated with AES and RSA Encryption Techniques
Prajna Aasritha Adabala, R Gowtham, Thambi Jaishitha, Vadluri Sai Rishisri, C. R. Kavitha · 2024
Visual cryptography (VC) designed to secure visual information such as images and text by dividing it into multiple shares. A key advantage of visual cryptography is its ability to decrypt information without the need for computational devices, using simple human visual perception. The paper is centered on visual cryptography with examples such as Visual Secret Sharing, Advanced Encryption Standard (AES), and Rivest-Shamir-Adleman (RSA) during the encryption and decryption stages. The specific algorithms' efficiency in increasing security and improving image quality is discussed. The quality and overall accuracy of the reconstructed images are measured by the Peak Signal-to-Noise Ratio (PSNR). The benchmark images are used to compare the results in terms of encryption and decryption time and PSNR value. The findings signify the integration of AES and RSA in improving security without compromising image quality and computational complexity.