3.1.5.3 Requesting a Security Token by Issuing a wsignin1.0 Request Message

This section describes the generic message processing performed by a relying party when requesting a security token. The purpose is to authenticate a user by requesting a security token to be issued for a specific user with the relying party as the audience.

The generic processing model for sending a wsignin1.0 message MUST consist of the following steps, as described in the following subsections:

• Protocol Activation (section 3.1.5.3.1)

• Parameter Marshaling (section 3.1.5.3.2)

• Requestor IP/STS Security Realm Discovery (section 3.1.5.3.3)

• Message Transmission (section 3.1.5.3.4)