i know what proximity keys are but have no idea how they actually work. Check out this story.... 6 Toy Highlanders stolen last night in Toronto neighbourhood. How do you duplicate a prox key? how do they work?

http://www.theglob...vs/article1377177/

i know with the systems i put in, pretty much any proximity key will work on the system, the paradox keyfobs and cards i have have a serial number on the back 12:12345 the first 2 digits are the family number and the last 5 are the key number. That last 5 is distinct to the key. The key has to be associated with the system, and then it has to be given the specific door accesses.

Never had any issues with the Mitsu proximity keys... they seem pretty much safe. And we tried between about 40 cars.

It's a neat idea, just obviously needs some uhh, fine tuning.

Soooooo Does that mean its pretty easy to hack? Can a valet now simply write down the numbers make and model and someone could gain access?

Posted by nostra-YOUPPI! i know with the systems i put in, pretty much any proximity key will work on the system, the paradox keyfobs and cards i have have a serial number on the back 12:12345 the first 2 digits are the family number and the last 5 are the key number. That last 5 is distinct to the key. The key has to be associated with the system, and then it has to be given the specific door accesses.

Well and you have a few options for restricting security as well. I forget who our company uses equipment wise for proximity card installs.

Years ago, I've seen an MIT project which was about hacking keyless entry and actually, it wasn't that successful. The encryption used on the controller is decent enough that you can't spoof it over the air and clone it. The students tried a couple of of ways to capture data; they tried to decyper the signals and the encryption and found that the time it took was not worth it.

Most controllers now are a two way system where some sort of quick verification occurs where the controller is expecting to hear something first and bark back a command that the key must recognize and send something back.