From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id BB01B1069 for ; Tue, 19 Jun 2018 15:20:40 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from bitcoin.jonasschnelli.ch (bitcoinsrv.jonasschnelli.ch [138.201.55.219]) by smtp1.linuxfoundation.org (Postfix) with ESMTP id 206DA758 for ; Tue, 19 Jun 2018 15:20:40 +0000 (UTC) Received: by bitcoin.jonasschnelli.ch (Postfix, from userid 1002) id 0C4A915E5351; Tue, 19 Jun 2018 17:20:39 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on smtp1.linux-foundation.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham version=3.3.1 Received: from [192.168.0.13] (cable-static-238-67.teleport.ch [213.188.238.67]) by bitcoin.jonasschnelli.ch (Postfix) with ESMTPSA id BA61C15E534A; Tue, 19 Jun 2018 17:20:38 +0200 (CEST) From: Jonas Schnelli Content-Type: multipart/signed; boundary="Apple-Mail=_A1B479F3-4235-4469-AF5F-01555FBCC7DC"; protocol="application/pgp-signature"; micalg=pgp-sha256 Mime-Version: 1.0 (Mac OS X Mail 11.4 \(3445.8.2\)) Date: Tue, 19 Jun 2018 17:20:34 +0200 References: <5b6b9d44-8e6c-2799-438e-d311e221bb57@satoshilabs.com> To: matejcik , Bitcoin Protocol Discussion In-Reply-To: <5b6b9d44-8e6c-2799-438e-d311e221bb57@satoshilabs.com> Message-Id: <8CF4BD50-0ECE-4F96-B978-397116CD76CE@jonasschnelli.ch> X-Mailer: Apple Mail (2.3445.8.2) X-Virus-Scanned: clamav-milter 0.99.4 at bitcoinsrv.jonasschnelli.ch X-Virus-Status: Clean Subject: Re: [bitcoin-dev] BIP 174 thoughts X-BeenThere: bitcoin-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Bitcoin Protocol Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Jun 2018 15:20:40 -0000 --Apple-Mail=_A1B479F3-4235-4469-AF5F-01555FBCC7DC Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 I agree with matejcik=E2=80=99s point 1 to 3 and especially with point = 4. The mandatory flag (or optional-flag) makes much sense to me. > ----------- >=20 > In general, the standard is trying to be very space-conservative, > however is that really necessary? We would argue for clarity and ease = of > use over space constraints. We think more straightforward approach is > desired, although more space demanding. What are the arguments to make > this as small as possible? If we understand correctly, this format is > not intended for blockchain nor for persistent storage, so size = doesn=E2=80=99t > matter nearly as much. I don=E2=80=99t see any reasons why space would be an issue. HWWs probably can=E2=80=99t handle PBST natively since it is not = optimised for presenting various informations in a signing-verification. A single stream-in of a PSBT through USB (or similar channel) will not = work in many cases since HWW come often with very restrictive RAM constraints. Furthermore, I forget to mention in my last mail, that registering (or = defining) a mime-type for PSBT would probably a great usability feature. (Send PSBT by email/messanger and with dbl-click to open feature, etc.) /jonas --Apple-Mail=_A1B479F3-4235-4469-AF5F-01555FBCC7DC Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEyhopCNzi8TB0xizeHrd2uwPHki0FAlspH0IACgkQHrd2uwPH ki2YAg//WdAbBIf923ctryL2iKAtgNZp7do3plHHD1RHJT1JVNRmYDhZKbNczMfq yMhyAjt3kGQ6xwYQkhbbDeHChyhWewCPk2+s5T4NZ1MJFBF6XqcUa5pDOYadIq// gRn1yQVXFGxUdXbNBbQ6zVggLzMB4kv1jckOOsKEMtqNG309bpNQV1H9fueMTj1y GoiT/6cnNyvIrM1Flh2pF+EurmQYCSL2e5LHzfQejyrkYvdb0jDQi9jMOwwW9S0y URzgWxUAaANobGb8CcaKCVqzdIfgWfPOjetcSlxRDQobuKbNPhkNGRmyHzxZRNf4 3VwgYtLa+AuHsrGrCfeV/jEaJaUepyGxS/0/R71B0y9DCHrdWydcbRFGLN8GB+KV KtsfKlvsBKjqXGOt7iUktrGrX+wReMJz0cr+x+FvE1E4/bIA/WSwXe+n5jr6P9yW kRfYQzkXKTBjTpsFJGpiR/T3woOlN4WFTh5XkX2kKfRWF3RLTareZyM2kKESJuno T9yZrmGtbgLoez0yP6hbmkM1+B7w7JwTBu5bT6z/bgfYekOpYtQy21tBCBf99Uz4 j9UneCk3Uw9+sPzIWbyIxpvZvYjBqfhf7r6fTsKLdskR/0Eev0W/cfexeZQ4uEfQ Os4+iIWNX5YZ2le+pLke8pWBtFwOlm4msfc3PYqPCDqdHQJSYBQ= =Dbm2 -----END PGP SIGNATURE----- --Apple-Mail=_A1B479F3-4235-4469-AF5F-01555FBCC7DC--