ISSN:
1572-9125
Keywords:
D.4.6
;
G.2.0
;
I.1.2
;
Access control system
;
file protection system
;
access control matrix
;
Galois field
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mathematics
Notes:
Abstract A new access control scheme for the growth of users and files in file protection systems is proposed. Our scheme associates each user with a user key and each file with a file key. For each key, there are some corresponding locks, that can be extracted from a nonsingular matrix. Through simple operations on keys and locks, privacy decisions of the protection system can easily be revealed. Furthermore, by employing our method, whenever a new user or file is joined, the corresponding key values and lock values will be determined immediately without changing any previously defined keys and locks.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01990521
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