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Message-ID: <55802D0D.4090506@thinlink.com>
Date: Tue, 16 Jun 2015 07:05:01 -0700
From: Tom Harding <tomh@thinlink.com>
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To: Kalle Rosenbaum <kalle@rosenbaum.se>
References: <CAPswA9w5Sgg6AV=9Pqx5sqbkdrwv9LmwoxmMu7xZsQSNXtmZnQ@mail.gmail.com> <CAPg+sBjtovFpLoibpVGLsNJXexBcoiYzjrvctraXntCUZBJsGg@mail.gmail.com> <CAPswA9zhB4GV=JJ28RRLFNrkVwExUv36zujmuAjwPd6rG6rvzQ@mail.gmail.com> <CALJP9GCBJiofY7k2RJ460CuLuWQunHcx7EcLi1-d07v76Y-E2g@mail.gmail.com> <CAPswA9wqdbU0z8ydBt+9M0iQX0VSi1ce=dg3fR2_2bx3-vEqzA@mail.gmail.com> <CAPswA9z_xKY6v9=Ejh=01mZN0QCVo1e0RY1FTzXzS39i3tjgAw@mail.gmail.com> <CAPswA9xk5QYAXxQ6ES3cnNPeB1FTiiSJgLahLEkSk4CLpoM_QQ@mail.gmail.com> <CAPg+sBiWykR6RaHhbyYQbL=A5t1TmHgEmS_sC7jj9d3SUTMO9g@mail.gmail.com> <CAPswA9zycU0pwZKaHU9J3Tvg=ovLJ8TZ9OH6ebTPONaRaiOE8g@mail.gmail.com> <CAPg+sBhuth22+vAHyS2iwpze8X=-b2wJQ5s1z2FhZ1jsLXobgQ@mail.gmail.com> <557FB36B.1030902@thinlink.com>
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Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] BIP for Proof of Payment
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On 6/16/2015 5:12 AM, Kalle Rosenbaum wrote:
> 2015-06-16 7:26 GMT+02:00 Tom Harding <tomh@thinlink.com>:
>> Kalle goes to some trouble to describe how merchants need to ensure th=
at
>> they only accept a PoP provided as a response to their challenge.
>>
> Do you mean that it will be hard to explain to merchants that they
> must check the nonce in the PoP so that it matches the nonce in the
> pop request?
Sorry for the idiomatic language. No, I just meant that you have
thought it out in detail! You standardize a latent capability of the
cryptosystem. It seems very powerful for some classes of users.
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