SSO (simpleSAMLphp) with a Yubikey U2F token at Univention managed by privacyidea
Channel: privacyIDEA
Date: 16/12/2015

You can register a U2F device with privacyIDEA. 
http://privacyidea.readthedocs.org/en/latest/configuration/tokens/u2f.html
Then you can use this registered U2F device to login at the simpleSAMLphp IdP to perform Single Sign On.