Should be significantly more secure than Mifare though. Ideally something like a contactless OpenGPG card or similar.
Recently I searched for passive NFC ICs that'd be suitable for implementing that, but came up empty. Usecase was exactly that: A NFC device located at about the wrist. My laptop has a NFC reader at just the right place of the handrest to read it. And I'd probably transplant a NFC reader into my desktop computer's keyboard for the same purpose.
Just had an idea, maybe not the wrist for mobile devices, maybe a ring that is always on the hand that is on the back of the phone. I don't know, but I can't help but think of how things can be more secure and that there is a market for those with security in mind.
Just found this also in my search while typing this comment.
I don't like rings (you put on your fingers). But that's just a personal preference. I'd be okay with wristbands though. Yes, the proximity to smartphone NFC readers would be a benefit of a ring.
Should be significantly more secure than Mifare though. Ideally something like a contactless OpenGPG card or similar.
Recently I searched for passive NFC ICs that'd be suitable for implementing that, but came up empty. Usecase was exactly that: A NFC device located at about the wrist. My laptop has a NFC reader at just the right place of the handrest to read it. And I'd probably transplant a NFC reader into my desktop computer's keyboard for the same purpose.
But first I'd need that NFC thingy.