SIGNAL+DRAHT | Ausgabe 05/2024
Post-quantum cryptography and a long period of use – no objections thanks to crypto agility
The control and safety components used in railway systems have often been in operation for decades and will have to use up-to-date cryptographic methods in the future. Since currently widespread crypto algorithms such as RSA or Diffie-Hellman could be broken with a quantum computer at some point, it must be possible to switch to post-quantum methods if necessary. Innovative approaches are therefore being sought. This article presents a sustainable concept based on crypto-agile solutions.