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  • NCAR/UCAR Help Desk


CGD/IS Help Files

02.01.01 - Token Authentication

For many connections to UCAR or CGD resources, you will be prompted for a Token Response rather than a password. Although similar, the token is a physcial device that generates a random password string each time it is used to connect to a resource.

Currently there are two types of tokens in use at UCAR: cryptocards and yubikeys. Cryptocards are considered end-of-life and are no longer being distributed. If you currently have a cryptocard, please contact the systems group and we will assist you in transitioning to a yubikey. For more information on tokens, please see CISL's documentation:


For a list of all CGD/IS documentation, see:

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