Quantum cryptography for network securitization - Situation and prospects

In the domain of research associated to quantum information, quantum cryptography has solved a major issue of current protocols which is the key distribution between two interlocutors, by guaranteeing that no other person can have knowledge of it. The quantum key distribution thus allows for data securitization for a much longer period of time than that obtained at this time. Initially presented as a mere curiosity, this technique has now proved its potential, although its development requires new tools such as sources or single-photon detectors.