MIME-Version: 1.0
From: James MacWhyte <macwhyte@gmail.com>
Date: Fri, 06 May 2016 23:51:58 +0000
Message-ID: <CAH+Axy5Ga9twXP7ORqOHHtdejxs1CGuo1u-7TaDd_fcOfBXixQ@mail.gmail.com>
To: "bitcoin-dev@lists.linuxfoundation.org"
	<bitcoin-dev@lists.linuxfoundation.org>
Content-Type: multipart/alternative; boundary=089e0111bacc8c7b4105323525af
Subject: [bitcoin-dev] BIP75 update & PR - Simplification
Precedence: list

--089e0111bacc8c7b4105323525af
Content-Type: text/plain; charset=UTF-8

Hi all,

We've made some significant changes to BIP75 which we think simplify things
greatly:

Instead of introducing encrypted versions of all BIP70 messages
(EncryptedPaymentRequest, EncryptedPayment, etc), we have defined a generic
EncryptedProtocolMessage type which is essentially a wrapper that enables
encryption for all existing BIP70 messages. This reduces the number of new
messages we are defining and makes it easier to add new message types in
the future.

We've also decided to use AES-GCM instead of AES-CBC, which eliminates the
need for the verification hash.

A pull request has been submitted, which can be seen here:
https://github.com/bitcoin/bips/pull/385

All comments are welcome. Thank you!

James

--089e0111bacc8c7b4105323525af
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Hi all,<div><br></div><div>We&#39;ve made some significant=
 changes to BIP75 which we think simplify things greatly:<br><br>Instead of=
 introducing encrypted versions of all BIP70 messages (EncryptedPaymentRequ=
est, EncryptedPayment, etc), we have defined a generic EncryptedProtocolMes=
sage type which is essentially a wrapper that enables encryption for all ex=
isting BIP70 messages. This reduces the number of new messages we are defin=
ing and makes it easier to add new message types in the future.<br><br>We&#=
39;ve also decided to use AES-GCM instead of AES-CBC, which eliminates the =
need for the verification hash.<br><br>A pull request has been submitted, w=
hich can be seen here:=C2=A0<a href=3D"https://github.com/bitcoin/bips/pull=
/385">https://github.com/bitcoin/bips/pull/385</a><br><br>All comments are =
welcome. Thank you!<br><br>James</div></div>

--089e0111bacc8c7b4105323525af--