Computers & Security (March)

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These files reside on the data owner’s machine that runs sythond and are therefore private. Several new built-in Python (Sython) functions have been defined for use with secure variable input and output faculties. These new built-in functions are discussed in the next section. Each instance of the Sython Interpreter has a private namespace within sythond. This allows multiple instances of the Sython Interpreter to share one instance of sythond concurrently and therefore, can be thought of as a clientserver architecture, where the clients are Sython interpreter instances and sythond acts as the server.

Since the first results are really promising, after we have implemented the whole access control and dynamic update module we will try to improve it in order to work for even open environments where subjects are unknown. Furthermore, since lately there is interest in controlling access to web services, these promising results may find an interesting application to environments protecting them. references Baldi P, Frasconi P, Smyth P. Modeling the Internet and the web. Wiley; 2003. Bertino E, Castano S, Ferrari E.

Using digital credentials on the world-wide web. Journal on Computer Security 1997;5: 255–67. Xie Y, Phoha VV. Web user clustering from access log using belief function. In: Proceedings of first international conference on knowledge capture, Victoria, British Columbia, Canada; 2001. 129 Yang C, Li C. Access control in a hierarchy using one-way hash functions [Elsevier]. Computers and Security 2004;23(8): 659–64. Konstantina E. Sc. D. graduate student. A. degree from the University of Macedonia in Thessaloniki, Greece.

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