Le Quoc Cuong, Nguyen Toan Linh Tam, Nguyen Thanh Mai, Patrick Bellot
Aeronautical Telecommunication Network (ATN) is the network used by the Air Traffic authorities, the Air Traffic Controllers (ATCo), the aircrafts and all Ground Stations (GS) to communicate voice and data. This paper describes how the ATN can be secured by using Quantum Cryptography (QC), either fiber-based QC or free-space QC, instead of classical PKI. ATN is a good example of special-purpose dedicated networks that could be secured by QC.
The objective of our study is related to the security of Air-Ground Telecommunications (AGT) in the dangerous after 9/11 world where one may expect serious threats to aircraft safety. We may be concerned by attack on confidentiality, integrity and availability of telecommunications. A wrong message or the absence of message may have strong consequences for aircraft safety. Eavesdropping attempts may inform ill-intentioned actors. These hard facts plead for a
permanent search of a maximal AGT security.
Our work also describes more ambitious scenarios based on different QKD techniques to secure the whole ATN while respecting the criteria of the incremental insertion of QKD inside PKI-based system and the criteria of complementarities of the two techniques. The most ambitious plan would be to use satellites-based key distribution. The required number of satellites varies from 7 to 43 depending on technology evolution. It is a costly solution that may be used only if PKI is broken one day by Quantum Computers or mathematical progress.
- Le Quoc Cuong, Patrick Bellot. “Enhancement of AGT telecommunication security using quantum cryptography”. 4th International Conference on Computer Sciences Research, Innovation and Vision for the Future (RIVF 2006), co-sponsored by IEEE Region X, Marc Bui ed., Ho Chi Minh City (Vietnam), February 2006.
- Michel Riguidel, Patrick Bellot, Nguyen Toan Linh Tam, Dang Minh Dung, Le Quoc Cuong, Nguyen Thanh Mai. “Quantum Crypt: Enhancement of AGT telecommunication security using quantum cryptography“. Rapport de projet, 133 pages.July 2005.