OT. The Universal Key, Proximity Key for all applications Options

[Brett W]

I am a developing a new concept and need some feedback. This product could be integrated into a common device. It would use some proprietary RFID technology to to link all of your access control applications together.

For example if you live in an apartment, your Uni-Key would access the building, your specific apartment, your mail box, the gym, the elavator, etc. You could use it to access your work place, your vehicle, etc.

I know you are concerned with security as am I. All steps will be taken to insure the utmost in security.

[Brett W]

One of the benefits I see with the universal key is the simplicity with which a "key can be invalidated in an emergency. As opposed to calling a locksmith out to re-key all of your locks when your key ring is lost or stolen, you simply make a couple of phone calls and your old key is locked out. Plus with the key being installed in something other than a card it will not be identifiable as and access controller.

My thoughts on data control are:
Data incryption before the card is activated. That way the info is useless except to the system with the coresponding "security token key".

Another way would be a type of challenge and answer type of interaction for the reader and the key.

How often do you lose your cell phone? How about your eyeglasses? Since the device installation is so flexible a theif would have a very hard time figuring out what device was the key.