Windows Driver Certificate Expired

I'm trying to install on a Windows Server 2012 machine that has very stringent security requirements. When I go to install the driver, it fails with this in the setupapi log:

An unexpected error occurred while validating driver package. Catalog = arduino.cat, Error = 0x800B0101
Driver package is considered unsigned, and Code Integrity is enforced.
Driver package failed signature validation. Error = 0xE0000247

Arduino.cat is signed with a certificate that expired on 12/19/13. I think I can work around it for the short term, but long-term, I need an update to that certificate.

(No, I can't install on a different machine or lower the security requirements, so please don't suggest that.)

I can confirm this BIG issue. It has expired just before christmas. Why have you not used timestamp service?

I can't get my Arduino Uno working with drivers from FTDI (says serial port in use just after connecting).

Probably should've mentioned the workaround before: if your security settings will allow for it, you can change the system clock to be sometime before Dec 19th, then install, then fix the clock. It's stupid and shouldn't be necessary, but it works.