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Attribute-based access control (ABAC), also known as policy-based access control for IAM, defines an access control paradigm whereby a subject's authorization to perform a set of operations is determined by evaluating attributes associated with the subject, object, requested operations, and, in some cases, environment attributes.
In ERP systems, RBAC (Role-Based Access Control) model is applied for users to perform transactions and gain access to business objects. [11] In the model, the decision to grant access to a user is made based on the functions of users, or roles. Roles are a multitude of transactions the user or a group of users performs in the company.
The eXtensible Access Control Markup Language (XACML) is an XML-based standard markup language for specifying access control policies. The standard, published by OASIS, defines a declarative fine-grained, attribute-based access control policy language, an architecture, and a processing model describing how to evaluate access requests according to the rules defined in policies.
The Oracle Adaptive Access Manager is part of the Oracle Identity Management product suite that provides access control services to web and other online applications. [1] [2] [3] Oracle Adaptive Access Manager was developed by the company Bharosa, which was founded by Thomas Varghese, Don Bosco Durai and CEO Jon Fisher.
After Oracle acquired Sun Microsystems, they re-branded a number of products that overlapped in function. (See table below.) The re-branding, and Oracle's commitment to ongoing support and maintenance of these products were revealed by Hasan Rizvi, Senior Vice President of Oracle Fusion Middleware in an Oracle and Sun Identity Management Strategy webcast in 2010.
The model uses a three-part relationship of subject/program/object (where program is interchangeable with transaction) known as a triple or an access control triple. Within this relationship, subjects do not have direct access to objects. Objects can only be accessed through programs. Look here to see how this differs from other access control ...
According to the model, the protection state of a computer system can be abstracted as a set of objects , that is the set of entities that needs to be protected (e.g. processes, files, memory pages) and a set of subjects , that consists of all active entities (e.g. users, processes).
Ambient authority is the dominant form of access control in computer systems today. The user model of access control as used in Unix and in Windows systems is an ambient authority model because programs execute with the authorities of the user that started them.