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RFID Force Read / Write

So Ive been thinking the last couple days on a project that I personally think would be pretty cool, The ability to transfer a pass-code to someone just by shaking hands or handing someone a pen.

I want to be able to have an RFID chip in my hand and in someone else hand and by shaking hands to be able to force a code onto their chip and the other way around if need be, An alternative to this is to be able to hand over a somewhat small object such as a wallet or a watch or a pen that would force the code onto the chip, 

I know its a little James Bond but If this is possible I would love to equip my "Compound" with RFID unlocking doors. To let people in all you would have to do is hand them a pen to look at for a second and then take it back and now you both have the same pass-code and you both have clearance to the same doors.

Comments

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  1. You would need an active RFID in you or the other person. The only way to transfer would be with power. Maybe if the pen was a powered reader/writer. Perhaps instead of trying to hand shake it have an object like the pen be the means of giving that code. It would be a small concealed RFID/NFC writer similar to the pens that double as a laser pointer or USB.
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