Quantum-Resistant File Transfer System with Blockchain-Based Audit Trail and Decentralized Storage
Ernesto Sola-Thomas
Graduate Student, Dept of ECE, Clarkson University
Abstract: This thesis presents a novel file transfer and storage system that combines quantum-resistant cryptography with blockchain technology to create a secure, auditable, and user-centric data storage solution. As quantum computing advances threaten classical cryptographic methods, this research addresses the urgent “harvest now, decrypt later” vulnerability by implementing NIST-standardized post-quantum cryptographic algorithms—specifically CRYSTALS-Kyber for key encapsulation and CRYSTALS-Dilithium for digital signatures. The system architecture consists of three modular components: a Sender module for secure data transmission, a User Storage with Blockchain module for encrypted storage and immutable audit logging, and a Requestor module for authenticated retrieval operations. My implementation demonstrates that robust quantum resistance can be achieved while maintaining system performance and usability. Testing confirms that the additional computational overhead from post-quantum operations remains minimal and does not impact practical applications. The containerized, cross-platform design ensures consistent deployment across environments while facilitating integration with existing systems. Blockchain-based transaction logging provides transparent verification of all data operations without compromising security or privacy. Key innovations include client-side encryption that returns data ownership to users, blockchain-based audit trails that enhance compliance with privacy regulations, and a comprehensive key management system with rotation capabilities. While primarily a proof-of-concept, this work establishes a practical framework for organizations seeking to future-proof their data security infrastructure against emerging quantum threats while addressing current challenges in data ownership and auditability. Limitations and directions for future work, including multi-node blockchain scaling and hardware acceleration opportunities, are also discussed.
BIO: Ernesto Sola-Thomas earned his Bachelor’s degree in Computer Engineering with a minor in Software from Clarkson University, graduating in December 2023. He is currently pursuing a Master’s degree in Electrical and Computer Engineering, focusing his thesis on Quantum-Resistant Cryptography and Blockchain Technologies. Ernesto also works full-time at Microsoft in North Carolina as a Silicon Verification Engineer, specializing in AI Accelerator custom chips. His previous research includes IEEE conference publications on FPGA-Controlled AI Vision for Prosthetic Hands, the Design of a Low-Cost, Lightweight Smart Wheelchair, and an Ultra-Low-Power Smart Wearable Stereo Camera system.
Tuesday 8th, April, 2025, 12:30-1:30 pm, ZOOM
Join Link:
https://clarkson.zoom.us/j/98355632809?pwd=oenWVFBa0UuMurPULaUrtMVVof2fQb.1