DocumentCode :
1975795
Title :
A Multiple Security Domain Model of a Drive-by-Wire System
Author :
Howser, G. ; McMillin, Bruce
Author_Institution :
Dept. of Comput. Sci., Missouri Univ. of Sci. & Technol., Rolla, MO, USA
fYear :
2013
fDate :
22-26 July 2013
Firstpage :
369
Lastpage :
374
Abstract :
Traditional security models partition the security universe into two distinct and completely separate worlds: us and them. This partition is absolute and complete. More complex situations are most commonly treated as sets of increasingly more secure domains. This view is too simplistic for cyber-physical systems. Absolute divisions are conceptually clean, but they do not reflect the real world. Security partitions often overlap, frequently provide for the high level to have complete access to the low level, and are more complex than an impervious wall. We present a model that handles situations where the security domains are complex or the threat space is ill defined. To demonstrate our method, we examine a ´drive by wire´ system from both the traditional view and in light of the modern reality. This paper examines the system from the viewpoint of the driver with special emphasis on the driver´s inability to determine who, or what, is actually in control of the automobile during critical situations.
Keywords :
security of data; automobile; cyber-physical systems; drive-by-wire system; multiple security domain model; security partitions; Computational modeling; Computers; Cost accounting; Roads; Security; Vehicles; Wires; cyber-physical systems; drive-by-wire systems; information flow security; modal logic; nondeducibility; security models;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computer Software and Applications Conference (COMPSAC), 2013 IEEE 37th Annual
Conference_Location :
Kyoto
Type :
conf
DOI :
10.1109/COMPSAC.2013.62
Filename :
6649849
Link To Document :
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