A Secure and Efficient Cross-Platform P2P File Sharing System
DOI:
https://doi.org/10.21467/proceedings.7.6.20Keywords:
The application, peer-to-peer networking, TCP/UDPAbstract
Safe and effective file sharing is an urgent requirement in the current era of digitization, but the current facilities such as cloud-based systems (e.g., Google Drive) and conventional peer-to-peer (P2P) techniques (e.g., Bluetooth) are lacking due to privacy issues, reliance on the internet, and platform dependency. "The application," a hybrid P2P file-sharing system that facilitates cross-platform, offline, and secure file sharing, is proposed in this paper. The application includes a customized networking stack over UDP for device discovery performance and TCP for guaranteed data transport with the assistance of a local hotspot mode to perform server-independently. Security is also increased by AES-256-CBC encryption and RSA-2048 key exchange, along with search functionality based on SQLite, which provides intelligent file structure and retrieval. Performance tests indicate transfer rates of 12-18 MB/s, with device discovery less than 50 ms. The application provides a safe, privacy-oriented alternative to traditional file-sharing infrastructure, and there is potential for mass deployment in a variety of applications.
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