The new communication protocol will ensure complete confidentiality

[Tomcat]

Researchers at the University of Basel and the Zurich Federal Institute of Technology are working on a new communication protocol that guarantees complete confidentiality. The protocol adds artificial noise to the original data, providing protection from intruders.

To combat cybercriminals who have quantum computers, experts are developing new encryption methods based on the principles of quantum mechanics. The protocol can be implemented experimentally and guarantees security in cases where the devices used for communication are so-called "black boxes". Quantum computers are embedded in black boxes where light or sound cannot penetrate, as this is necessary to eliminate decoherence and induce superposition in qubits.

Some theoretical proposals for communication protocols with black boxes existed in the past, however, they could not be implemented experimentally, since the devices used had to be very effective in detecting information about the encryption key. If the information blocks remain undetected, it is impossible to know if they have been stolen by a third party.

The new protocol is designed to solve this problem by "diluting information with noise." Adding artificial noise to the cryptographic key information will not provide enough information and compromise the security of the protocol. In addition, the researchers were able to reduce the requirements for devices used for highly efficient information detection.