Searching for just a few words should be enough to get started. If you need to make more complex queries, use the tips below to guide you.
Article type: Research Article
Authors: Wray, John C.; *
Affiliations: Digital Equipment Corporation, 550 King Street (LKG2-1/X6), Littleton, MA 01460-1289, USA
Note: [*] This paper presents the opinions of its author, which are not necessarily those of Digital Equipment Corporation. Opinions expressed in this paper must not be construed to imply any product commitment on the part of Digital Equipment Corporation.
Abstract: Covert channels have traditionally been categorized as either storage channels or timing channels [8, 9]. This paper questions this categorization, and discusses channels that cannot be clearly identified as either storage or timing channels, but have aspects of both. A new model of timing channels is presented, which allows for channels that have characteristics of both storage channels and timing channels, and a method is given for constructing all channels in a computer system that have timing channel characteristics. Since Kemmerer's shared resource matrix methodology [7] has the potential to detect all channels that have storage characteristics, it is argued that the two methods jointly have the capability to construct all channels in a computer system. The approach to timing channels provides a justification of specific mechanisms for reducing their bandwidth which were employed in the VAX11VAX is a trademark of Digital Equipment Corporation. Virtual Machine Monitor, as described in [4] and [5].
DOI: 10.3233/JCS-1992-13-403
Journal: Journal of Computer Security, vol. 1, no. 3-4, pp. 219-232, 1992
IOS Press, Inc.
6751 Tepper Drive
Clifton, VA 20124
USA
Tel: +1 703 830 6300
Fax: +1 703 830 2300
sales@iospress.com
For editorial issues, like the status of your submitted paper or proposals, write to editorial@iospress.nl
IOS Press
Nieuwe Hemweg 6B
1013 BG Amsterdam
The Netherlands
Tel: +31 20 688 3355
Fax: +31 20 687 0091
info@iospress.nl
For editorial issues, permissions, book requests, submissions and proceedings, contact the Amsterdam office info@iospress.nl
Inspirees International (China Office)
Ciyunsi Beili 207(CapitaLand), Bld 1, 7-901
100025, Beijing
China
Free service line: 400 661 8717
Fax: +86 10 8446 7947
china@iospress.cn
For editorial issues, like the status of your submitted paper or proposals, write to editorial@iospress.nl
如果您在出版方面需要帮助或有任何建, 件至: editorial@iospress.nl