I think the Bitcoin community needs a good person-to-person payment protocol for BLE simply because Bluetooth LE is effectively peer-to-peer. Unlike NFC or conventional Bluetooth, a $5 micro can be either the master or slave and talk directly to other $5 micros nearby.
[ASIDE... BLE is also the first wireless tech that Apple has allowed us free access to. They have claimed all NFC/RFID connections for their own "Pay" junk, and Bluetooth accessories are all locked down into their "make for iphone" program which literally requires a letter from your lawyer to enter. Of course Apple is just one vendor.] Surely, as a community, we can make a rock-solid P2P protocol that is resistant to spoofing and vandalism. I'm a big fan of putting crypto to good use, and doing a slightly more complex protocol involving EC signing of nonces sounds great. My only change to the RedPhone based "commit protocol" proposed previously, is I'd like the confirmation code to be a 6-digit decimal number rather than words. Wordlists are good for Red phone's audio application, but it's a lot easier to display a 6-digit code on vending machines, small mobile screens, and printed receipts. Just my two cents. --- Peter D. Gray || Founder, Coinkite || Twitter: @dochex || GPG: A3A31BAD 5A2A5B10
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