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- W95873497 abstract "ABSTRACT Hypermedia systems (whether web sites or not) should support multilevel policiesm, offering different views and manipulation abilities of the same information to users with different needs in a particular context. Several experiences have demonstrated that role-based access control (RBAC) policies are a powerful mechanism to simplify management tasks. This paper describes the implementation and the integration in the Apache server of the MARAH model, that provides security designers with mechanisms to specify security rules using elements and abstractions of the hypermedia domain (such as nodes, links or contents), considering a web site as a special case of hypermedia. KEYWORDS Hypermedia, security models, role-based access control, web server. 1. INTRODUCTION Hypermedia systems should support multilevel policies in order to offer different views and manipulation abilities of the same information to users with different needs and responsibilities in a particular context [Diaz01]. The assignment of authorizations in terms of users or groups is a unmanageable, laborious and prone to error task, so that role based access control (RBAC) appears as an useful approach to simplify this management [Ferraiolo92], [Sandhu96]. RBAC is a security mechanism that regulate access to resources through organizational entities called roles [Jansen98]. High-level security models make possible to specify the rules that control the access to a specific system, but this specification can be faced from rather different levels of abstraction. MARAH (Role-Based Access Model for Hypermedial Architectures in Spanish) is a high level security model for hypermedia, that tries to fill in the conceptual gap between the application domain and the underlying hypermedia platform (e.g. web) that supports it. MARAH considers three layers in the hypermedia application security design. The top one is called" @default.
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- W95873497 date "2003-01-01" @default.
- W95873497 modified "2023-09-26" @default.
- W95873497 title "Integrating RBAC Mechanisms in a Web Server." @default.
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