Securing Images: Cryptographic Approach in Big Data Scenario
Kriti Priya Shah, Subodh Narayan Sah, Osho Kothari, H. N. Vishwas · 2024
Digital Image as a form of data is a critical component of the digital age. Therefore, Image Encryption and Decryption is one of the important aspect for modern communication. Image security for such digital images remain one of the important questions to be answered [14][15]. Among all the advanced Encryption and Decryption algorithm, Advanced Encryption Standard (AES) and Chaotic Map Algorithm remains the prominent approaches for image security through advanced encryption and decryption approaches. This Study undertakes these two algorithm for encryption and decryption approaches for image. AES on one hand is considered for its strong security and consistent performance whereas Chaotic Map is considered for its dynamics for encryption. In a Big Data scenario, performance efficiency, scalability, and robustness of these algorithms are critical factors due to the large volumes of image data involved. Further statistical analysis including Entropy, Mean Squared Error (MSE), Correlation Coefficient, Peak Signal-to-Noise Ratio (PSNR), and Structural Similarity Index (SSIM) are considered for both the algorithms. Additionally both the algorithms are further evaluated on the basis of encryption and decryption time and key sensitivity for the security reasons.