Hi there,

I would like to request you to support two-factory authentication. Specifically, the yubikey device. This request is similar but not equal to BCLOUD-5811.

The yubikey is a very nice, easy to use, affordable and secure OTP system that will allow you to easily integrate it into your own system.

For details: http://www.yubico.com/products/yubikey-hardware/yubikey/

They have many ways to integrate, but in your case using the Web API is probably easiest. They (Yubico) already provide code to make things easier.

For details: http://www.yubico.com/develop/open-source-software/web-api-clients/

Disclaimer: I'm not involved in anyway with Yubico.