Use Quantum Random Number Generator in Diffie-Hellman key exchange protocol

The development of information society, which led to an impressive increase of the volume of information, mostly economic, which was circulated in computer networks, accelerated the development and especially the use of modern cryptography tools. The role of modern cryptography is to assure by specific mathematical means, both theoretically and practically, the four basic characteristics of information: confidentiality, integrity, authenticity, and nonrepudiation. This paper presents a series of results obtained within an ample project, whose purpose is to integrate devices based on quantum properties, in order to gradually replace the current classical equipment which becomes vulnerable, and also to develop software applications. The results were obtained as a result of performance and testing of an experimental model which implements an architecture of client-server type, and which integrates a quantum random number generator in the mechanism of obtaining the cryptographic key.