This identifies what sort of mode the Digipass token operates in.
Possibilities are:
- RO: Response Only. The token generates a response each time it is
activated. This Response is used as the password for the user to log
in.
- CR: Challenge/Response. For each authentication, Radiator sends a
challenge to the user. The user enters the challenge into the token
using its keypad, and the token generates a matching Response, which is
used as the password for the user to log in.
- SG: Signature. The token can be used to generate a digital
signature, and is usually not used for logging in via Radiator.
Radiator supports authentication by both RO and CR tokens.
