Startup Idea : Close circuit biometric security

One of the many privacy challenges to bio-metric identification is that the information for identification can be easily be stolen from a device that stores and transmits the data. This idea presents the concept of developing a system that will live internal to your residence, take your bio-metric information in your own home to a non-external network enabled server on a chip, compile it into a digitally signed DLL (or similar) that will only run on the device it's created on, and then allow that bio-metric information to be challenged by external readers. This would, in effect, allow for you to use your own bio-metric information to secure your premises without the worry of releasing their bio-metric information into the wild to be used for nefarious purposes.