Optical fibers have become a universal means of communication. Nearly all information including confidential information is exchanged through these optical networks. While the data protection of individuals, organizations and enterprises is a subject of considerable concern, few people know that it is relatively easy to intercept the signal inside an optical fiber. A simple twist of the fiber, for example using an optical tap makes it possible to recover a portion of the light which, once decoded, contains all the information exchanged by users in real time.
Therefore, it is necessary to secure communication networks, all the more so if the information exchanged is confidential. The usual technique is to digitally encrypt the data, but this has the disadvantages that firstly the bandwidth is reduced if a very high security level is required and secondly it often proves to be expensive. In parallel, numerous local area networks that have already been installed use multimode optical fiber which has limited bandwidth. Consequently, the latter cannot support very high encryption coding levels without significantly impacting data exchange speeds.
The SIFOM project, supported by the DGA (French Government Defense procurement and technology agency) and developed jointly by Cailabs and our partner Ekinops has as its goal the development of a solution that will:
Upgrade the multimode optical fiber by increasing its bandwidth up to 4×10 Gbit/s.
Physically protect the confidential data in the optical fibers by modal obfuscation.
Detect hacking attempts in the optical networks.
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