Security properties of typed applets

  • Authors:
  • François Rouaix;Xavier Leroy

  • Affiliations:
  • -;-

  • Venue:
  • Secure Internet programming
  • Year:
  • 2001

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Abstract

This paper formcdizes the folklore result that strongly-typed applets are more secure than untyped ones. We formulate and prove several security properties that all well-typed applets possess, and identify sufficient conditions for the applet execution environment to be safe, such as procedural encapsulation, type abstraction, and systematic typebased placement of run-time checks. These results are a first step towards formal techniques for developing and validating safe execution environments for applets.