August 1, 1983Open Access

Cryptographic solution to a problem of access control in a hierarchy

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Resumen

A scheme based on cryptography is proposed for access control in a system where hierarchy is represented by a partially ordered set (or poset). Straightforward implementation of the scheme requires users highly placed in the hierarchy to store a large number of cryptographic keys. A timeversus-storage trade-off is then described for addressing this key management problem.

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Akl et al. (Mon,) studied this question.

synapsesocial.com/papers/6a109ab22badbc352a005d1e https://doi.org/https://doi.org/10.1145/357369.357372

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1Cryptography: A New Dimension in Computer Data Security--A Guide for the Design and Implementation of Secure Systems1982 · 63 citations
2DIGITALIZED SIGNATURES AND PUBLIC-KEY FUNCTIONS AS INTRACTABLE AS FACTORIZATION1979 · 1,024 citations
3An Introduction to the Theory of Numbers. By G. H. Hardy and E. M. Wright. 2nd edition. Pp. xvi, 407 25s. 1945. (Oxford)1946 · 7,375 citations
4Cryptography, a primer1981 · 146 citations
5The Design of a Cryptography Based Secure File System1980 · 60 citations

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