Optimization Methods For System Track Data
Securing Using Digital Signatures
Author(s)
G. Icriverzi
Abstract
Information security is critical in Air Traffic Management systems. Those
systems use, among other sources, information received from the Radar Heads
Processors. This information is used in the processed form of ASTERIX System
Tracks. The accuracy and protection of this data is essential for the Air Traffic
Management process. System Track radar data securing by adding a digital
signature to each system track. A record requires high processing resources,
especially for 2048 bits RSA keys. This approach does not modify the ASTERIX
code structure thus keeping the compatibility with other communication partners.
However, the use of this method in a sensitive environment like Air Traffic
Management may obstruct real time radar data processing. The aim of this paper
is to indicate new securing methods that will overcome this problem. Two
alternatives are proposed and analyzed that can be combined in order to secure
the data in real time. One alternative is using more powerful processing units and
the other is applying an optimized method for adding a digital signature to
system track data. Unlike the initial approach, where every System Track Record
is added a digital signature, the new method relies on adding a digital signature
to an entire block of records. The initial method and the optimized method were
tested using several processing units. The results showed that the new method
adds an insignificant overhead to the existing processing resources allowing the
planning for real time system track data securing.
Keywords: ASTERIX, authentication, digital signature, radar data, system track.
Keywords
ASTERIX, authentication, digital signature, radar data, system track
Related Book
Other papers in this volume
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