As some have noticed, we've now silently sneaking out a new firmware release for the Yubikey. As usual, the new firmware shall be fully backwards compatible so anyone not interested in the new functionality should not have to bother at all. However, see (3) below.
The new functionality comprises the following:
1. Factory-programmed serial number. The serial number can be configured to be visible via API calls, via the USB descriptor or by holding the button and releasing it during startup. As we fully integrate the 2D-barcodes in production, all deployed keys will have a DataMatrix code + human readable number reflecting this serial number.
2. Challenge-response mode assisted by API calls. Both Yubico OTP and HMAC-SHA1 is supported.
3. Scan code mode static password has been extended from 16 to 38 characters. Note that a bug in the 2.1 Windows configuration tool causes problems in this mode for 2.2 keys. Download the latest update from our web to resolve this issue.
4. Support for a preset moving factor seed in OATH-HOTP mode.
5. The "Terminal Server Shift bug" has been fixed.
We are now updating the web with the new tools and we'll post more information over the coming weeks. Please check out at
http://www.yubico.com/developers/personalization/With the best regards,
JakobE
Hardware- and firmware guy @ Yubico