ISSN:
1573-7586
Keywords:
Rights Untransferability
;
Client-Server Architecture
;
Distributed Access Control
;
Cryptography
;
Computer Security
Source:
Springer Online Journal Archives 1860-2000
Topics:
Computer Science
,
Mathematics
Notes:
Abstract This article presents a scheme for enforcing access rights untransferability in a client-server scenario. Assumptions include a central authority and servers which are trusted and hold no access information about clients. For a client sharing none of her rights, usurpation of a right seems as hard as the discrete logarithm. Also, rights sharing between clients does not compromise their non-shared rights when a sound public-key cryptosystem is used. Transferring rights between clients without the authority's contribution cannot be done if a sound public-key cryptosystem is used. However, only control on partial rights transfers is addressed in this paper, which does not deal with total identity transfer or alienation.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1027336710989
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