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A simple readonly RFID tag - agreed. But think "smartcard with wireless power transmission" like [1]. These should be able to ensure cryptographically secure co
by padelt 12y ago
A simple readonly RFID tag - agreed. But think "smartcard with wireless power transmission" like [1]. These should be able to ensure cryptographically secure communication and identification. At least MitM-attacks without physical access to the card should be unfeasible, right?
[1] http://en.wikipedia.org/wiki/Contactless_smart_card#Security http://en.wikipedia.org/wiki/Contactless_smart_card#Security
- thaumaturgy 12y agoI don't think perfect security needs to be the goal here. You just need to have your device automatically protect the data on it when you're separated from it -- whether it's the state in suits, or just random laptop theft in San Francisco. If you're up against an enemy capable of realizing ahead of time that you've RFID-protected your device, and capable of cloning your RFID tag without your knowledge, then you're probably screwed no matter what you do.