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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.
XACML, the eXtensible Access Control Markup Language, defines an architecture (shared with ALFA and NGAC), a policy language, and a request/response scheme. It does not handle attribute management (user attribute assignment, object attribute assignment, environment attribute assignment) which is left to traditional IAM tools, databases, and ...
XACML, the eXtensible Access Control Markup Language, uses XML as its main encoding language. Writing XACML policies directly in XACML leads to bloated, human-unfriendly text, [3] therefore a new, more lightweight, notation was necessary. Axiomatics researcher, Pablo Giambiagi, therefore designed ALFA, the Axiomatics Language for Authorization.
OpenAM provides authorization policy from basic, simple, coarse-grained rules to highly advanced, fine-grained entitlements based on XACML (eXtensible Access Control Mark-Up Language). Authorization policies are abstracted from the application, allowing developers to quickly add or change policy as needed without modification to the underlying ...
It converts it into an authorization request (typically in XACML) which it sends to a Policy Decision Point (PDP). The Policy Decision Point is configured with policies that implement dynamic access control that can use any number of user, resource, action, and context attributes to define which access is allowed or denied. Policies can be about:
XACML: eXtensible Access Control Markup Language; XBEL : the XML Bookmark Exchange Language. XBL: used to declare the behavior and look of 'XUL'-widgets and XML elements; XBRL: an open data standard for financial reporting. xCBL: a collection of XML specifications for use in e-business. xCal: the XML-compliant representation of the iCalendar ...
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OAuth is also unrelated to XACML, which is an authorization policy standard. OAuth can be used in conjunction with XACML, where OAuth is used for ownership consent and access delegation whereas XACML is used to define the authorization policies (e.g., managers can view documents in their region).