PERFORMANCE EVALUATION OF THE SECURE AND INTEGRATED ENCRYPTION MODEL (SHIELD)

ABSTRACT

The rise of cloud computing has highlighted the need for strong data security and privacy. This study evaluates the Secure and Integrated Encryption Model (SHIELD), designed to enhance public cloud security. SHIELD uses optimized hybrid encryption (256-bit AES and 2048-bit RSA), real-time OTP authentication, Role-Based Access Control (RBAC), and auditing tools. Developed in Python with Django, it incorporates multithreading for AES and PKCS1_OAEP for RSA to boost performance. Results show encryption and decryption time improved by 28.8% and 76.2%, respectively, with an Avalanche effect over 50%, indicating strong encryption. SHIELD outperformed existing models in all areas, offering a robust solution for securing public cloud data. Future research will explore its use in private and hybrid clouds.

Keywords: Performance, Cloud Computing, AES, RSA and Cryptography.