Quantum computers threaten our security: researchers present a solution!

Quantum computers threaten our security: researchers present a solution!

On April 2, 2025, researchers at the Karlsruhe Institute of Technology (KIT) will present a novel method for key exchange that is intended to secure communication against future quantum attacks. Given the threat that quantum computers pose to common encryption systems, this development is crucial.

Quantum computers have the potential to significantly jeopardize many conventional encryption methods used in emails, messenger services and online banking. The reason lies in the efficiency with which quantum computers can solve problems that are extremely challenging for classical computers. All current encryption methods that rely on the difficulty of factoring large numbers into prime factors could be cracked by quantum computers in a very short time, especially by Shor's algorithm.

The new process in detail

To secure communication, KIT uses a procedure based on symmetrical encryption. A virtual key is exchanged before the encrypted connection is established. The researchers developed novel key matching algorithms to ensure that both parties have an identical key and the connection remains tap-proof. This process could be used across the board within the next five years.

The process could be illustrated in real time during a demonstration on March 27, 2025 at the Ludwig Maximilians University in Munich. The innovative solution uses according to kit.edu conventional hardware from fiber optic communication, which makes the use cost-effective. For the project, the developers received a total of 3.4 million euros in funding from the Federal Ministry of Education and Research (BMBF).

In addition to KIT, the project partners include ADVA Network Security GmbH, the Ludwig Maximilian University of Munich, the Leibniz University of Hanover, Microwave Photonics GmbH and Creonic GmbH. International research into developing quantum-safe algorithms, including from the National Institute of Standards and Technology (NIST), demonstrates the urgent need for such technologies.

Theoretical foundations and challenges

Quantum computers are based on the principles of quantum mechanics and can solve calculation tasks much faster. Using qubits that can assume multiple states simultaneously gives them a significant performance advantage. Loud aware7 Quantum-safe encryption is essential because today's cybersecurity security architectures were developed without taking these powerful computers into account.

Experts warn that if inadequate precautions are taken, sensitive data could be decrypted at any time. The threat of quantum attacks therefore requires not only innovative technologies, but also comprehensive measures to prepare companies. It is recommended to assess the digital infrastructure and develop migration strategies to quantum-resistant processes. In addition, training in post-quantum cryptography is of great importance in order to build up the necessary specialist knowledge.

In addition, experts emphasize the importance of hybrid security approaches. These combine quantum-safe algorithms with existing methods to ease the transition. However, when implementing quantum secure solutions, companies must respond to several challenges, such as higher computing power, larger key lengths and comprehensive testing of new algorithms. Security Insiders emphasizes that such a change represents an immense challenge both technologically and socially.

An intensive examination of these challenges can be expected in the coming decade. The development and implementation of quantum-safe solutions is therefore not just a question of technology, but also a strategic necessity to secure our digital future.