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Two integrated schemes of user authentication and access control in a distributed computer network

✍ Scribed by Jan, J.-K.; Tseng, Y.-M.

Book ID
114448365
Publisher
The Institution of Electrical Engineers
Year
1998
Tongue
English
Weight
639 KB
Volume
145
Category
Article
ISSN
1350-2387

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## Recently, Wu and Chang and Shen and Chen separately proposed a cryptographic key assignment scheme for solving access control problem in a partially ordered user hierarchy. However, this paper will show the security leaks inherent in both schemes based on polynomial interpolations. That is, the u