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The authentication process typically consists of the following steps:
The integrator working with the R4 interface can obtain information on the current status of the authentication using the AIMGetPSLAttributes command of the R4 interface. All responses of the R4 interface contain a pair of statuses (AIMStatus and AuthStatus) with the following semantics:
The integrator should always take this pair into consideration when checking success.
The following figure shows the status diagram of the authentication session along with the R4 interface operations, which influence the actual process: