From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sog-mx-1.v43.ch3.sourceforge.com ([172.29.43.191] helo=mx.sourceforge.net) by sfs-ml-1.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1YJTw6-0006Zl-Cp for bitcoin-development@lists.sourceforge.net; Thu, 05 Feb 2015 21:26:06 +0000 X-ACL-Warn: Received: from mail-pd0-f179.google.com ([209.85.192.179]) by sog-mx-1.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) id 1YJTw5-0006G3-J9 for bitcoin-development@lists.sourceforge.net; Thu, 05 Feb 2015 21:26:06 +0000 Received: by pdjy10 with SMTP id y10so10127143pdj.7 for ; Thu, 05 Feb 2015 13:26:00 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:message-id:date:from:user-agent:mime-version:to :cc:subject:references:in-reply-to:content-type; bh=D6UbBDOaq8Tb7pvwbHD70Gh/J5t9jzaJ4xqBooWyWVI=; b=QKx+ESkmFdObBr3bEU0TSeql+0KSGkLFdKmkUrHSN+L2K+P/2J8ogyf2PqLsAbhPBM SqdavGYLlu2JUIQJG3rFvAErHx0uHKi8C7BrmP35bxkHOcBhJI/h18X6SFZdlqUsg398 D5Di23MjatuTObFIFJA0Dl+4oBBBdYaC0NGPL74FQ9jBqbYsDpp4KXLOHBX0mskRide9 z2Ai6eDEpmUjZdYe9HhrSocIo4wG50aUlZsCePSjYdqQFJwUJcBruroDA+h4gtI6pGTc kLi3bY6r9QLm4eqOh7d4nR7f9/rC5S0v6ZOaKKdjvEFuBhGIurZik7ioU3o3jHTFtgdQ /duA== X-Gm-Message-State: ALoCoQnfrVnfZo5s11jNXwHXUgpIMoCh6xUxNhAa4F06ui/mzRREB9vRmOjh0e8ydHFuzAce2dVu X-Received: by 10.70.95.35 with SMTP id dh3mr89423pdb.91.1423169972638; Thu, 05 Feb 2015 12:59:32 -0800 (PST) Received: from [10.0.1.3] (c-50-135-46-157.hsd1.wa.comcast.net. [50.135.46.157]) by mx.google.com with ESMTPSA id fg6sm5953548pdb.24.2015.02.05.12.59.31 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 05 Feb 2015 12:59:32 -0800 (PST) Message-ID: <54D3D9C4.9090400@voskuil.org> Date: Thu, 05 Feb 2015 12:59:48 -0800 From: Eric Voskuil User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.2.0 MIME-Version: 1.0 To: Mike Hearn References: <54D3D636.1030308@voskuil.org> In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="CtXFt5m9co6nCFo4kodR78ptX4WaQJuXP" X-Spam-Score: 0.0 (/) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. X-Headers-End: 1YJTw5-0006G3-J9 Cc: Bitcoin Dev , Paul Puey Subject: Re: [Bitcoin-development] Proposal for P2P Wireless (Bluetooth LE) transfer of Payment URI X-BeenThere: bitcoin-development@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Feb 2015 21:26:06 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --CtXFt5m9co6nCFo4kodR78ptX4WaQJuXP Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On 02/05/2015 12:50 PM, Mike Hearn wrote: > I'm imagining myself walking around broadcasting my photo and MAC > address while hucksters push payment requests to me for approval >=20 > I hate to break it to you, but you broadcast a photo of your face every= > time you walk outside ;) >=20 > 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. Interesting take on privacy. But the market will of course decide. Would the merchant be broadcasting payment requests in the clear, or would they be encrypted with a public key of the spender? > "Payment spam" might be a problem. I can imagine a wallet requiring tha= t > 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. Not sure I'd shoot for a system that's guaranteed to require PKI with blacklisting and spam filtering. e --CtXFt5m9co6nCFo4kodR78ptX4WaQJuXP Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAEBAgAGBQJU09nEAAoJEDzYwH8LXOFO8t4H+wQd9LW+BIVauUw2kgQytuOw TpVIf0UtgSyTQWYJHeloj6WFMVeXAHZfBDZanWnx6vsDhwSRihX7pWwUiH907fkX 3A/wBiJfzB1q11rHdyv9AQh9UswklLVYxklFJ1cQrYhIlqXIMpMEkiDZU3Be3a+t hCPsYpnU2Yogzg3pkqe8cf7pGddXA3UWg/eBb7j2rYPsfX8q7EPUJ8rt26unoq/N skNRbdGn8+eCUCF/paDtFjOj7IHSrhsq22UFiwtHVUJldLsmfLlgRH7KR/ukD5Cf KTGPW8Xyf/yUpA+XSco/vuPCljKd1qbBJ9wM5h2hQBm+pcUktde+NfAwOFN5PTI= =h5gf -----END PGP SIGNATURE----- --CtXFt5m9co6nCFo4kodR78ptX4WaQJuXP--