SoftwarePot: an encapsulated transferable file system for secure software circulation

  • Authors:
  • Kazuhiko Kato;Yoshihiro Oyama

  • Affiliations:
  • Institute of Information Sciences and Electronics, University of Tsukuba, Tsukuba, Ibaraki, Japan and Japan Science and Technology Corporation;Japan Science and Technology Corporation

  • Venue:
  • ISSS'02 Proceedings of the 2002 Mext-NSF-JSPS international conference on Software security: theories and systems
  • Year:
  • 2002

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Abstract

We have developed a general approach to enable secure circulation of software in an open network environment such as the Internet. By software circulation, we mean a generalized conventional software distribution concept in which software can be transferred even in an iterative manner such as through redistribution or using mobile agents. To clarify the problem that arises when software is circulated in an open network environment, we first considered a simple model for unsecure software circulation and then developed a model for secure software circulation (SSC). In the SSC model, we extended the sandbox concept to include its own file system and to have the ability to be transferred via a network. In this sense, our approach is characterized by an encapsulated, transferable file system. We describe how the SoftwarePot system was designed to implement the SSC model, and discuss the implications of experimental results that we obtained during the implementation.