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Difference between revisions of "Authentication Materials"
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== About == | == About == | ||
− | This page describes the concept of [[Authentication Materials]] used in the [[Context Data Model 1.1]]. [[Authentication Materials]] are needed to open a [[Context]]. | + | This page describes the concept of [[Authentication Materials]] used in the [[Context Data Model 1.1]]. [[Authentication Materials]] are needed to open a [[Context]]. For example, in the case of opening an LDAP Context, a username and password may be required. |
Authentication Materials are classes which implement the IdAS '''IAuthNMaterials''' interface. This is only a marker interface without methods. | Authentication Materials are classes which implement the IdAS '''IAuthNMaterials''' interface. This is only a marker interface without methods. |
Revision as of 17:54, 1 May 2009
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About
This page describes the concept of Authentication Materials used in the Context Data Model 1.1. Authentication Materials are needed to open a Context. For example, in the case of opening an LDAP Context, a username and password may be required.
Authentication Materials are classes which implement the IdAS IAuthNMaterials interface. This is only a marker interface without methods.
Authentication Material Types
In certain situations, it is helpful to have identifiers for common types of Authentication Materials:
- For example, for R-Cards we use UDIs to point to Higgins Contexts and Entities. When a UDI is resolved, we need to know what type of Authentication Materials is needed for opening the Context it points to.
- UDIs are used for implementing R-Cards
The interface IAuthNMaterials defines the following string identifiers for common types of Authentication Materials:
urn:udi:authnmaterials:1.0:anonymous urn:udi:authnmaterials:1.0:leastPrivileged urn:udi:authnmaterials:1.0:implied urn:udi:authnmaterials:1.0:usernamePassword urn:udi:authnmaterials:1.0:p-infocard urn:udi:authnmaterials:1.0:m-infocard urn:udi:authnmaterials:1.0:samlpolicy
Notes:
- The above identifiers can have a query string for passing additional information (e.g. constraints on the accepted Authentication Materials)
- For example, in the case of urn:higgins:authmethod:1.0:m-infocard this additional information could be a base64 encoded I-Card <object> element:
urn:higgins:authmethod:1.0:m-infocard?encoded-object-element
- The special identifier urn:higgins:authmethod:1.0:implied means that the party trying to open the Context must somehow know by itself what Authentication Materials to use. E.g. in SSO scenarios, that party may already have a session established with the user, or in some other way know their credentials.