Charging in a Secure Environment

  • C. S. Wallace
  • R. D. Pose
Part of the Workshops in Computing book series (WORKSHOPS COMP.)


The Monash Multiprocessor Architecture incorporates a monetary system at the lowest kernel level, integrated with a password capability scheme. Although the capability scheme is quite flexible, providing support for non-hierarchic security and access policies, abstract type management and information confinement, we show that it is possible for service providers to command use-based fees for service. The fee charging protocols must be designed with some care to avoid breaching required information confinement constraints when user and provider are mutually suspicious, but need not be very complicated.


Processor Time Server Process System Administrator Type Manager Real Money 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. 1.
    Anderson, M., Pose R.D. and Wallace, C.S., “A Password-Capability System”, The Computer Journal, Vol. 29, No. 1, 1986, pp. 1–8.CrossRefGoogle Scholar
  2. 2.
    Anderson, M. and Wallace, C.S., “Some Comments on the Implementation of Capabilities”, The Australian Computer Journal, Vol. 20, No. 3, 1988, pp. 122–130.Google Scholar
  3. 3.
    Wallace, C.S., “A Physically Random Generator”, Computer Systems Science and Engineering, Vol. 5, No. 2, 1990, pp. 82–88.Google Scholar

Copyright information

© British Computer Society 1990

Authors and Affiliations

  • C. S. Wallace
    • 1
  • R. D. Pose
    • 1
  1. 1.Department of Computer ScienceMonash UniversityAustralia

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