- Quantum computing threatens current encryption systems, putting the security of critical data at risk.
- The use of post-quantum algorithms is essential to ensure protection against quantum computers.
- Telefónica has developed Quantum-Safe Networks, a solution that strengthens security in 5G networks, IoT and critical systems.
- Use cases include IoT device protection, private 5G networks, and smart meters.
Quantum computing is about to revolutionize digital security and poses an unprecedented challenge to current encryption systems. While this technology brings with it great advances in various sectors, it also introduces significant risks to privacy and information integrity. In this context, the concept of Quantum-Safe emerges as a key solution to prevent attacks in a future dominated by quantum computers.
Many organizations are investing in developing strategies to mitigate these risks.. Telefónica, for example, has presented its initiative Quantum-Safe Networks, a set of solutions designed to strengthen digital security by implementing quantum-resistant encryption.
Quantum computing: the new challenge in cybersecurity
Current cryptographic algorithms, such as RSA and ECC, have been the foundation of Internet security for decades. However, Quantum computers will be able to decipher them, endangering the confidentiality of the communications and stored data.
One of the most worrying threats is the one known as Store Now, Decrypt Later (SNDL), in which cybercriminals intercept and store encrypted data with the intention of decrypting it when quantum computing is sufficiently advanced.
Post-quantum solutions in development
Faced with this scenario, Various strategies have been developed to mitigate the risks. Among them, stand out:
- Using post-quantum algorithms: Cryptographic methods designed to resist attacks by quantum computers.
- Quantum Key Distribution (QKD): Technology that uses the properties of quantum mechanics to distribute encryption keys in an inviolable way.
- Reduction of data validity: Minimize the time during which sensitive information is exploitable.
The National Institute of Standards and Technology (NIST) has been leading the selection of post-quantum algorithms since 2016, and in 2024 it published the first official standards.
Quantum-Safe Networks: Telefónica's bet
Telefónica has presented Quantum-Safe Networks, a comprehensive solution that seeks to protect current and future networks by applying post-quantum encryption.
Among its applications, three key use cases stand out:
Secure 5G networks: remote control of critical devices
In collaboration with Subsea Mechatronics, Telefónica has demonstrated that its technology enables the Safe remote control of a submarine ROV (Remotely Operated Vehicle) through private 5G networks protected with post-quantum encryption. This system guarantees the to maximise security and your enjoyment. of the communications and low latency necessary to operate in critical environments such as underwater exploration.
Protection of public networks and smart meters
Another key use case is the IoT device protection, As the smart meters water, gas and electricity. Together with Idemia, Telefónica has integrated post-quantum cryptography into the eSIMs of these devices, ensuring that the transmitted data are inviolable.
In addition, the system incorporates the functionality Crypto Agility, which allows security protocols to be remotely updated based on new vulnerabilities.
Extra layer of security for IoT devices
Technology Quantum-Safe has also been applied to IoT devices in critical sectors, such as mining, industry and healthcare. Telefónica has shown how Halotech's Halo I smart helmets and Halo III bracelets can benefit from post-quantum encryption to protect the transmission of sensitive information.
This implementation ensures that the data of the between workers. in these sectors are secure and cannot be manipulated by malicious actors.
The advancement of quantum computing represents a radical change in digital security, and the adoption of technologies such as Quantum-Safe Networks is essential to maintaining the integrity of insights in the coming years. Companies such as Telefónica are already working on the implementation of post-quantum encryption solutions to anticipate future threats and ensure secure networks in the face of new technological challenges.
