Post-quantum Cryptography
What is post-quantum cryptography?
Post-quantum cryptography (PQC) refers to new algorithms that are resistant to attacks by quantum computers. Based on new mathematical foundations, post-quantum algorithms will replace current encryption schemes such as RSA and ECC. Their implementation requires an unprecedented degree of innovation and cooperation between academia and industry.
Quantum computers will have the potential to break today’s public key cryptography standards, posing a significant threat to information security. ST launched a post-quantum cryptography program to support the standardization and development of new algorithms, and secure a seamless transition to new crypto-agile ecosystems.
ST post-quantum cryptography program
ST experts from various technical fields are building the future of post-quantum cryptography with two main goals in mind.
Standardization process
The National Institute of Standards and Technology (NIST) is working together with the industry to pioneer new cryptography standards that will protect data from both quantum and classical threats. In August 2024, NIST released three new cryptographic standards: FIPS-203 (ML-KEM) for key encapsulation, FIPS 204 (ML-DSA), and FIPS 205 (SLH-DSA) for digital signature. Initially developed by ST, the Keccak algorithm plays a key role in these newly standardized quantum-safe algorithms.
Ensure a smooth and successful migration
Build new application standards
ST is actively contributing to new application standards that will support a mix of quantum-safe and classical algorithms.
Offer crypto-agile products
To keep up with evolving threats and cryptographic standards, ST R&D teams focus on the development of crypto-agile hardware and software products. The goal is to help developers quickly upgrade their solutions.
Post-quantum cryptography-ready products
ST already offer PQC-ready products. To name a few, the STM32 MCUs and MPUs based on the Arm Cortex®-M core and Cortex®-A, as well as the SPC5 32-bit and Stellar 32-bit Automotive MCUs come with a SHA-3 accelerator to support Post Quantum cryptographic software libraries.
New products under development will also feature optimized PQC cryptographic accelerators and cryptographic libraries combining state-of-the-art security, certification and high performance.
ST’s Keccak algorithm: The cornerstone of our cryptography future
ST has a strong expertise in developing efficient and flexible algorithms. Keccak is a key component of post-quantum algorithms, including CRYSTALS-Kyber (key-establishment), CRYSTAL-Dilithium, FALCON and SPHINCS+ (signature schemes). This permutation-based algorithm, standardized in FIPS 202 as SHA-3 and SHAKE functions, has been co-designed by ST researchers.
