Integrating with cloud-based authentication systems?

Integrating with cloud-based authentication systems?

A few of our users have the "Yubikey" one-time password key. It's basically a small USB key that generates random numbers when plugged in (the USB key emulates a keyboard), so it can be used for single or dual authentication. The random key gets sent to the Yubico servers for "cloud-based"  authentication.

The service is free, but I'm not a web developer so I'm not sure how this can be implemented into PMP.
Here is the link to the API and web clients: http://www.yubico.com/web-api-clients











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