SPAuthnContextMapper Attributes

The following attributes in the service provider extended metadata are used by the SPAuthnContextMapper:

• The spAuthncontextMapper property specifies the name of the service provider mapper implementation.

• The spAuthncontextClassrefMapping property specifies the map of authentication context class reference and authentication level in the following format:

  authnContextClassRef | authlevel [| default]

• The spAuthncontextComparisonType property is optional and specifies the method of comparison used to evaluate the requested context classes or statements. Accepted values include:

  • exact where the authentication context statement in the assertion must be the exact match of, at least, one of the authentication contexts specified.

  • minimum where the authentication context statement in the assertion must be, at least, as strong (as deemed by the identity provider) one of the authentication contexts specified.

  • maximum where the authentication context statement in the assertion must be no stronger than any of the authentication contexts specified.

  • better where the authentication context statement in the assertion must be stronger than any of the authentication contexts specified.

  If the element is not specified, the default value is exact.