In today’s information-driven society, internet-based services such as email, online shopping, cashless transactions, and digital application forms are securely protected by digital signatures, authentication, and key exchange based on
public-key cryptography as well as by data encryption based on
symmetric-key cryptography.
There is a risk, however, that cryptosystems widely used today will be vulnerable to attacks from quantum computers, a field in which R&D is moving at a rapid pace. Preparations are underway for migration to post-quantum cryptography that will be difficult to decipher even after quantum computers come into practical use. This migration is expected to progress on an unprecedented scale from 2025 onwards.
NIST is advancing the standardization of post-quantum cryptography technologies and in July this year announced the selection of the first group of quantum-resistant encryption tools. Migration to the selected public-key cryptographies is expected to be seen worldwide as they become de facto global standards. To address the cybersecurity risks posed by quantum computers, efforts to establish and advance the use of robust new cryptography technologies are already underway in the U.S., including a
National Security Memorandum signed by President Biden in May this year.
Complete migration to the new cryptographies is predicted to take about 10 years. This means prompt action is needed to keep pace with progress towards the practical use of quantum computers. To address these challenges, Toppan, the NICT, and ISARA have collaborated to pioneer the development of PQC CARD®, which is equipped with CRYSTALS-Dilithium, one of the post-quantum cryptographies selected by NIST. Effectiveness has been successfully confirmed by applying PQC CARD® for smart card authentication and digital medical record access control on H-LINCOS, which is operated by the NICT.
Based on the results, the organizations expect to be able to establish technology for equipping smart card systems with post-quantum cryptography and to advance the adoption of the cryptography to facilitate a smooth transition to encryption infrastructure for the quantum computing age. Toppan will continue to collaborate with the NICT on driving early adoption of post-quantum cryptography to create and maintain infrastructure for safe and secure information communication.