| Abstract: |
These last years have seen an explosion of the telecommunication field. Bit rates and network throughput have increased tremendously. The wide use of networks and their move mainstream has increased also the volume of sensitive material transmitted. Current algorithmic cryptography methods have not scaled in speed at the same rate networks have. Novel encryption methods are needed for real-time encryption on the modern optical networks.
In this talk, we present an alternative cryptography method and its applications to optical communications and networks. We will first explain the need for chaos cryptography and its emergence. We will then detail the principles involved in this research area and the three steps to chaos cryptography: chaos generation, synchronization and message transmission.
Chaos generation is achieved using a particular non-linear delayed feedback system whose characteristics will be detailed. The various steps and precautions taken to achieve synchronization will be explored as well as synchronisation evolution as a function of parameter mismatch. Finaly, the characterization of the proposed system in terms of cryptography and telecommunication will be presented.
In addition, we will see a brief overview of the GTL-CNRS Telecom laboratory, Georgia Tech Lorraine and the double doctoral degree program opportunity.
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| Bio: |
Nicolas Gastaud was born in Paris, France, in 1977. He graduated from Saint Jean de Passy, Paris, France, received the B.Sc. degree in engineering (with honors) from Trinity College, Hartford, CT, in 2000, the M.Sc. degree in electrical and computer engineering from the Georgia Tech, Atlanta, and the Diplôme de Spécialisation en Traitement et Transmission de l’Information (TTI) from Supélec, Metz, France in 2002. He is currently working toward the doctoral degree from the Université de Franche-Comté, Besançon, France and towards the Ph.D. degree from Georgia Tech as part of the GTL-CNRS Telecom laboratory in Metz, France where he is advised by Laurent Larger and Prof. Malassenet. Since relocating to Atlanta and joining the Center for Signal and Image Processing, he is advised by Prof. Williams.
His research focuses on high-speed chaos encrypted optoelectronic communication systems.
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