Secure File Sharing System using Hybrid Cryptogrphy

Abstract: The increasing use of digital platforms for storing and sharing files has raised concerns about data security and privacy. Sensitive information shared over networks is often exposed to risks such as unauthorized access, data theft, and cyber-attacks. Therefore, it is important to develop secure methods for protecting files during storage and transmission.

This project presents a Secure File Sharing Using Hybrid Cryptography system that aims to enhance data security through the use of multiple encryption techniques. The system divides an uploaded file into different segments and encrypts each segment using AES, DES, and Blowfish algorithms. To ensure secure key exchange between users, the RSA algorithm is employed. This combination of symmetric and asymmetric encryption techniques provides an additional layer of security while maintaining efficient file processing.

The system allows users to securely upload, share, and access files through a protected environment. By encrypting file data and securing encryption keys, the proposed solution helps prevent unauthorized access and improves the confidentiality of shared information.

The developed system offers a practical and reliable approach for secure file sharing and can be applied in environments where data protection is a critical requirement. The use of hybrid cryptography strengthens overall security and makes the system suitable for modern file-sharing applications security.

Keywords: Hybrid Cryptography, Secure File Sharing, AES, DES, Blowfish, RSA, Data Security, Encryption, Java Application