Communications of the ACM

Home/Magazine Archive/July 1974 (Vol. 17, No. 7)/Protection and the control of information sharing.../Abstract

Protection and the control of information sharing in multics

By Jerome H. Saltzer
Communications of the ACM, July 1974, Vol. 17 No. 7, Pages 388-402
10.1145/361011.361067
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The design of mechanisms to control the sharing of information in the Multics system is described. Five design principles help provide insight into the tradeoffs among different possible designs. The key mechanisms described include access control lists, hierarchical control of access specifications, identification and authentication of users, and primary memory protection. The paper ends with a discussion of several known weaknesses in the current protection mechanism design.

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