[Cryptography] Announcement: the SC4-HSM is now a FIDO U2F token

[Ron Garret]

I’m pleased to announce the first real industrial-strength application for the SC4-HSM (https://sc4.us/hsm).  The device can now function as a FIDO U2F (universal second factor) token.  The code is currently available only through our github repository (https://github.com/Spark-Innovations/SC4) but I will be releasing a pre-built binary soon.  All units ordered from this point forward will ship with the new firmware.

Note that this code has been tested but not audited.  I believe it to be secure, but cannot yet guarantee it.  If anyone is interested in doing a code review (which could be a paid gig) please contact me off-list.

rg