Thales pioneers Post Quantum Cryptography with a successful world-first pilot on phone calls

24/02/2023

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Thales, leader in advanced technologies, successfully experimented end-to-end encrypted phone calls, tested to be resilient in the Post Quantum era.

The pilot was performed with the Thales Cryptosmart' secure mobile app and 5G SIM cards installed in todays commercial smartphones, testing a mobile-to-mobile call, voice/data encryption, and user authentication.

Any data exchanged during the call is set to be resistant to Post Quantum attacks thanks to a hybrid cryptography approach, combining pre-quantum and post-quantum defence mechanisms.

Even if todays quantum computer1 prototypes are still far from posing a threat to public key cryptography, it is critical to begin investigating resilient solutions. For example, there is a variant of store now, decrypt later attacks that consists in storing todays exchanged data and messages in order to decrypt these messages once Quantum Computers are available. This means the majority of digital infrastructure security based on public key cryptography (PKC) may already be vulnerable to a quantum attack.

Such threats are relevant for scenarios involving highly sensitive information, such as classified information exchanged over an encrypted phone call. To address these threats, Thales created a proof of concept to test the scalability and quality of its solutions, which range from 5G SIM cards to secure communication software.

This first real-world quantum protected mobile solution, which combines Thales Cryptosmart application and its 5G SIM, employs hybrid cryptography, as recommended by the NIST (National Institute of Standards and Technology). CRYSTALS-Kyber', one of the four algorithms selected by the NIST2, is the PQC algorithm natively implemented in the 5G SIM and used by Cryptosmart application to encrypt the communication.

Building defences against threats that do not yet exist may appear to be a daunting task. That is exactly the prospect that the global cybersecurity community faces with the impending arrival of quantum computing. The post-quantum era is still years away, but as quantum computing becomes more prevalent, practicing crypto agility now with such pilots and trials are helping Thales and its customers get prepared said Philippe KERYER, Executive Vice President Strategy & Technology at Thales.

1computers that can perform certain tasks much faster than todays computers on a large scale.

2https://www.nist.gov/news-events/news/2022/07/nist-announces-first-four-quantum-resistant-cryptographic-algorithms

Documents

VF PR Thales Ercom PQC.pdf

Contact

Vanessa Viala - Digital Identity & Security Press Officer

+33 6 07 34 00 34 vanessa.viala@thalesgroup.com

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Thales pioneers Post Quantum Cryptography with a successful world-first pilot on phone calls

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