DEVELOPMENT OF A SECURE FILE STORAGE SYSTEM USING HYBRID ENCRYPTION TECHNIQUES
ABSTRACT
ABSTRACT
The rapid growth of digital data and cloud computing has intensified concerns regarding data confidentiality, integrity, and secure access control. Traditional file storage systems relying solely on symmetric or asymmetric encryption often experience trade-offs between performance efficiency and secure key management. This study presents the design and implementation of a Secure File Storage System (SFSS) based on hybrid encryption techniques that integrate symmetric encryption (AES) and asymmetric encryption (RSA) to enhance data protection. In the proposed system, files are encrypted using a randomly generated Advanced Encryption Standard (AES) key for efficiency, while the AES key is encrypted using the Rivest–Shamir–Adleman (RSA) public key for secure key distribution. A secure key management mechanism and integrity verification using SHA-256 hashing are incorporated to prevent unauthorized modification. The system was implemented using the Laravel PHP framework and deployed on a cloud-based platform. Performance evaluation demonstrates that the hybrid encryption model achieves strong security guarantees while maintaining acceptable encryption and decryption latency. The findings confirm that hybrid encryption provides improved confidentiality, integrity, and scalability for secure file storage applications in enterprise and cloud environments.