Centre National De La Recherche Scientifique

Georgia Tech Research Corporation

Cambridge Enterprise Limited

Universidade Do Porto

Université De Franche-Comté Besancon

Centre National De La Recherche Scientifique-Cnrs

Matthieu Bloch

Steven W McLaughlin

Joao Francisco Cordeiro De Oliveira Barros

Jean-Marc Merolla

Miguel Raul Dias Rodrigues

The invention relates to a system (EM, RE) for the optical transmission of a binary code. The invention makes it possible to carry out a coding of the bits transmitted in terms of intensity and phase by choosing a first base in which the signals coding the bits are distinguished only by a first physical quantity, and a second base in which the signals coding the bits are distinguished only by a second physical quantity.

System and method for the secure transmission of binary code by phase-and intensity-coding

Systems and methods of providing opportunistic security for physical communication channels are disclosed. One disclosed method is for opportunistic secure communication on a main channel between a sender device and a receiver device when an eavesdropper device is listening on an eavesdropper channel. This example method includes transmitting, in a first time period in which signal quality on the main channel is better than signal quality on the eavesdropper channel, symbols that are randomly selected from a set of symbols. The method also includes transmitting, in a second time period in which signal quality on the main channel is not better than signal quality on the eavesdropper channel, coding information associated with the randomly selected symbols. The method also includes reconciling the randomly selected symbols using the coding information.

Systems and methods for providing opportunistic security for physical communication channels

Growing community of inventors

Prevessin-Moens, France

Matthieu Bloch