糖心原创出品

Researchers at 糖心原创出品 (UAH), a part of the University of Alabama System, are leading a North Atlantic Treaty Organization (NATO) partnership to address emerging security challenges presented by quantum technologies. Quantum computers exploit quantum phenomena to solve mathematical problems that are difficult or intractable for conventional computers, and these devices will someday be able to break many of the public-key cryptosystems currently in use, seriously compromising digital communications. To counter these threats, the multi-year initiative, funded under the , seeks to provide secure communications via classical and quantum technologies. The effort addresses such weighty topics as counter-terrorism, energy security, cyber defense, environmental security and defense against chemical, biological, radiological and nuclear agents.

鈥淲e are very excited to enable UAH students to work with this technology,鈥� says UAH dean of the College of Science, Rainer Steinwandt. 鈥淭he College of Science's research capabilities and familiarity with the NATO SPS framework placed UAH in an excellent position to lead this multi-year effort.鈥�

In May 2022, the White House released a national security memorandum promoting United States leadership in quantum computing while mitigating risks to vulnerable cryptographic systems. To that end, UAH is heading five institutions in four nations to support the initiative: the Slovak Academy of Sciences and Slovak University of Technology, both in Slovakia, as well as the Universidad Carlos III de Madrid in Spain and the VTT Technical Research Centre of Finland. The overall mission is to design, analyze and implement a cryptographic protocol for secure group communication on distributed hybrid networks.

鈥淯AH is also in the fortunate position to be able to work on both technologies central to this project,鈥� Steinwandt says. 鈥淒on Gregory in our Department of Physics and Astronomy is an expert in optics and leads our experimental work on quantum key distribution. And through my work, our Department of Mathematical Sciences contributes to the post-quantum cryptographic aspects of the project.鈥�

The National Institute of Standards and Technology (NIST) is in the final stages of a standardization effort in post-quantum cryptography, as well. 鈥淔or this NATO SPS effort, we have the NIST Post-Quantum Cryptography Standardization Project as one of our end-users,鈥� Steinwandt notes.

The work places a special emphasis on training young scientists in post-quantum cryptography (PQC) and quantum key distribution (QKD) research. QKD is the science of exploiting quantum mechanical properties to perform cryptographic tasks, while PQC concerns the development of cryptographic algorithms that are secure against a cryptanalytic attack by a quantum computer.

鈥淨uantum key distribution is currently at more of a research stage,鈥� Steinwandt explains. 鈥淭he National Security Agency that it 鈥榲iews quantum-resistant (or post-quantum) cryptography as a more cost-effective and easily maintained solution than quantum key distribution.鈥� It makes sense to explore multiple pathways to deal with the threat of cryptanalytically relevant quantum computers. Research in quantum key distribution commonly happens in physics groups, whereas post-quantum cryptography is commonly closer to computer science and mathematics. So, we work across disciplines with the common goal of a quantum-safe communication infrastructure. We hope our project can contribute a flexible tool to achieve quantum-secure communication.鈥�