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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.
OAuth is unrelated to OATH, which is a reference architecture for authentication, not a standard for authorization. However, OAuth is directly related to OpenID Connect (OIDC), since OIDC is an authentication layer built on top of OAuth 2.0. OAuth is also unrelated to XACML, which is an authorization policy standard. OAuth can be used in ...
SAML 1.1/2.0, OAuth 2.0, WS-Federation, OpenID Connect, Kerberos cidaas [17] cidaas by Widas ID GmbH Commercial SAML 2.0, OAuth2, OpenID Connect Citrix Open Cloud [18] Citrix: Commercial SSO Middleware, native service connectors Cloud Identity Manager: McAfee: Commercial SAML 2, OpenID, OAuth, XACML, LDAP v3, JM Cloud Federation Service [19 ...
User-delegated tokens: These are tokens such as OAuth [2] which are granted based on user authentication. Policy & attribute-based access control: policies use attributes to define how APIs can be invoked using standards such as ALFA or XACML. The above methods provide different level of security and ease of integration.
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.
User-Managed Access (UMA) is an OAuth-based access management protocol standard for party-to-party authorization. [1] Version 1.0 of the standard was approved by the Kantara Initiative on March 23, 2015.
Federated SSO (LDAP and Active Directory), standard protocols (OpenID Connect, OAuth 2.0 and SAML 2.0) for Web, clustering and single sign on. Red Hat Single Sign-On is version of Keycloak for which RedHat provides commercial support. Microsoft account: Microsoft: Proprietary: Microsoft single sign-on web service Microsoft Azure EntraID: Microsoft
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.