[Bitcoin-development] Proposal for P2P Wireless (Bluetooth LE) transfer of Payment URI

Eric Voskuil eric at voskuil.org
Thu Feb 5 22:05:39 UTC 2015

Hi Paul,

The issue is in the establishment of trust. Anyone can broadcast the initial information.


> On Feb 5, 2015, at 2:01 PM, Paul Puey <paul at airbitz.co> wrote:
> The broadcast is ONLY done when the wallet is in Receive mode. Same as when the QR code is visible. The use of the *Name* section is specifically so that a recipient can broadcast their name/handle. Not so the recipient would broadcast the name of the Sender.
> On Thu, Feb 5, 2015 at 12:50 PM, Mike Hearn <mike at plan99.net> wrote:
>>> I'm imagining myself walking around broadcasting my photo and MAC
>>> address while hucksters push payment requests to me for approval
>> I hate to break it to you, but you broadcast a photo of your face every time you walk outside ;)
>> Bluetooth MAC addresses are random, they aren't useful identifiers. If someone can see you, a face is a far more uniquely identifying thing than a MAC.
>> "Payment spam" might be a problem. I can imagine a wallet requiring that such requests are signed and then spammers can be blacklisted in the usual fashion so they can't push things to your phone anymore. Anyway, a hurdle that can be jumped if/when it becomes an issue.
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