Image Encryption and Decryption

Abstract

In the digital age of today, organizations look up to secure, scalable, and efficient encryption techniques ensuring the protection of multimedia data and confidential communication. This paper offers a comparative study on symmetric cryptographic algorithms—DES, AES, and Blowfish—evaluated for their performance in image encryption and decryption. The analysis considers key size, rounds, encryption/ decryption speed, and overall security, demonstrating how these algorithms safeguard image data from unauthorized access. Experimental surveys highlight the strengths of AES in robustness, Blowfish in speed and flexibility, and DES in legacy use, but with vulnerabilities. The system-level evaluation provides insights into how cryptographic algorithms can be applied in real-world applications such as military communication, medical imaging, and secure internet transmission. Overall, the study demonstrates the critical role of encryption algorithms in enhancing confidentiality, maintaining integrity, and enabling secure multimedia communication—making it appropriate for environments seeking modernized image security frameworks.Overall, the solution demonstrates the power of Blowfish as a secure and performance-optimized algorithm—making it appropriate for systems seeking modernized encryption capabilities