Quantum computers pose a significant threat to modern data security. Within the next decade, these machines could easily bypass current encryption standards that protect health records, defense contracts, and personal financial data. While current computers would take millions of years to solve existing mathematical security formulas, quantum systems may achieve this in a fraction of that time. Experts now estimate a high probability of widespread cryptographic compromise by 2035.
To counter this, researchers are prioritizing post-quantum cryptography. This effort involves creating new encryption algorithms designed to withstand the immense processing power of future quantum machines. The United States government recently issued an executive order directing federal agencies to accelerate their transition to these more secure standards to protect national infrastructure and the digital economy.
Professor Yunsi Fei from Northeastern University is leading a new project supported by the National Science Foundation to improve the resilience of CRYSTALS-Kyber. This specific algorithm is the chosen replacement for current encryption systems, developed by IBM and already integrated into operations at companies like Amazon Web Services and Cloudflare. Despite its strengths, the system remains susceptible to specific exploitation methods.
Fei is focusing her research on side-channel and fault attacks. Side-channel attacks involve hackers monitoring hardware metrics like power consumption or electromagnetic frequency to gain system access. Fault attacks involve the intentional disruption of a system to create errors, often through voltage or temperature fluctuations. By adopting an ethical hacking approach, Fei and her collaborators at Tufts University aim to identify these leaks and develop hardware solutions that secure the digital future.
Protecting data confidentiality remains the core objective of this work. If quantum systems emerge within the expected five-year window, waiting to develop these safeguards is not an option. Through rigorous testing on actual hardware, this team intends to harden the next generation of encryption before the threat becomes a reality.