April 1982 - Vol. 25 No. 4
Features
A technique for testing command and control software
A technique for testing embedded-microprocessor command and control programs is described. The continuity inherent in functions computed by programs which monitor natural…
A comparison of two network-based file servers
This paper compares two working network-based file servers, the Xerox Distributed File System (XDFS) implemented at the Xerox Palo Alto Research Center, and the Cambridge…
Performing remote operations efficiently on a local computer network
A communication model is described that can serve as a basis for a highly efficient communication subsystem for local networks. The model contains a taxonomy of…
Grapevine: an exercise in distributed computing
Grapevine is a multicomputer system on the Xerox research internet. It provides facilities for the delivery of digital messages such as computer mail; for naming people,…
Cryptographic sealing for information secrecy and authentication
A new protection mechanism is described that provides general primitives for protection and authentication. The mechanism is based on the idea of sealing an object with a…