Efficient kernel support of fine-grained protection domains for mobile code

Masahiko Takahashi, Kenji Kono, Takashi Masuda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

19 Citations (Scopus)

Abstract

Mobile code is an emerging paradigm of distributed computing. It roams over a network, is linked with an application, and runs as a part of an application. In the case of web browsers, it is commonplace to download a mobile code, called a plug-in, from a truly open network such as Internet. Owning to the anonymity of an open network, the mobile code may be malicious; thus, it is indispensable to protect local computing resources from attacks by the malicious code. We have developed a kernel that supports fine-grained protection domains that preclude mobile code from making unauthorized accesses to the local resources. The developed scheme provides a novel mechanism, called a multi-protection page table, of virtual memory for creating fine-grained protection domains. The multi-protection page table enables efficient cross-domain calls, whereas it provides protection. Experimental results show that the developed scheme incurs only a 5.9% execution overhead even if cross-domain calls occur 30,000 times per second.

Original languageEnglish
Title of host publicationProceedings - International Conference on Distributed Computing Systems
PublisherIEEE
Pages64-73
Number of pages10
ISBN (Print)0769502229
Publication statusPublished - 1999 Jan 1
Externally publishedYes
EventProceedings of the 1999 19th IEEE International Conference on Distributed Computing Systems (ICDCS'99) - Austin, TX, USA
Duration: 1999 May 311999 Jun 4

Publication series

NameProceedings - International Conference on Distributed Computing Systems

Other

OtherProceedings of the 1999 19th IEEE International Conference on Distributed Computing Systems (ICDCS'99)
CityAustin, TX, USA
Period99/5/3199/6/4

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Networks and Communications

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  • Cite this

    Takahashi, M., Kono, K., & Masuda, T. (1999). Efficient kernel support of fine-grained protection domains for mobile code. In Proceedings - International Conference on Distributed Computing Systems (pp. 64-73). (Proceedings - International Conference on Distributed Computing Systems). IEEE.