The protocol independent parameters are

Parameter Name

Parameter Value Type


entityID URI

The IdP to request authentication from.

target absolute URL

The URL to return the user to after authenticating. If unspecified, the homeURL attribute for the application is used.

acsIndex stringThe index value of the <md:AssertionConsumerService> element to instruct the IdP to use in returning an assertion to the SP
authnContextClassRef whitespace-delimited URIsRequests that particular authentication context classes be used by the IdP.