Safe Tcl: A Toolbox for Constructing Electronic Meeting Places
Jacob Levy and John Ousterhout
Sun Microsystems Laboratories
Abstract
Electronic commerce needs electronic meeting places to conduct
business. To be useful, such meeting places must be safe for all
participants and for hosts (owners of places). In this paper we
discuss safety issues for participants and hosts. We then describe a
system we are building, Safe Tcl, that will allow the construction of
electronic meeting places with a range of safety properties. Safe Tcl
has two attractive properties. First, it uses a simple security model
based on ``padded cells'' that allows participants to coexist and
interact safely. Second, Tcl makes it easy to integrate the numerous
facilities required in an electronic meeting place such as integrity
verification and authentication.
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