Accession Number : ADA622337


Title :   Design and Characterization of a Secure Automatic Dependent Surveillance-Broadcast Prototype


Descriptive Note : Master's thesis


Corporate Author : AIR FORCE INSTITUTE OF TECHNOLOGY WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT


Personal Author(s) : Heruska, Benjamin N


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a622337.pdf


Report Date : 26 Mar 2015


Pagination or Media Count : 78


Abstract : During sensitive military operations, such as air operations in theater, the broadcasting of ADS-B messages poses a serious security concern, but the small message payload of ADS-B transmissions renders encryption standards such as AES unsuitable. Format-preserving encryption (FPE), a technique already in use on small message sizes such as credit card numbers, provides a suitable implementation of strong symmetric key encryption for the military context. This research proposes and details a Secure ADS-B (SADS-B) system which utilizes a bump-in-the-wire approach for encryption and decryption of ADS-B messages using FPE, going on to then characterize the prototype's performance using the following metrics: detection and error rates, operational latency, and utilization of resources on the underlying field programmable gate array (FPGA) hardware. Findings include sub-millisecond operational latency, full data rate throughput capability for ADS-B, and approximately 50% utilization of the available FPGA resources. Overall, findings suggest that a layered security system such as SADS-B is suitable for adding confidentiality to ADS-B.


Descriptors :   *CRYPTOGRAPHY , *DATA TRANSMISSION SECURITY , *MESSAGE PROCESSING , *SECURE COMMUNICATIONS , AIR TRANSPORTATION , COMMUNICATIONS PROTOCOLS , ERROR CORRECTION CODES , FIELD PROGRAMMABLE GATE ARRAYS , FREQUENCY DIVISION MULTIPLE ACCESS , INFORMATION ASSURANCE , MICROCOMPUTERS , MILITARY OPERATIONS , OPERATIONAL EFFECTIVENESS , PAYLOAD , PERFORMANCE(ENGINEERING) , RADIO BROADCASTING , SYSTEMS ENGINEERING , THESES , TRANSMITTER RECEIVERS


Subject Categories : Computer Systems Management and Standards
      Cybernetics
      Radio Communications


Distribution Statement : APPROVED FOR PUBLIC RELEASE