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 EF0F125A for ; Fri, 13 May 2016 21:42:20 +0000 (UTC) X-Greylist: whitelisted by SQLgrey-1.7.6 Received: from mail-yw0-f177.google.com (mail-yw0-f177.google.com [209.85.161.177]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 503FC229 for ; Fri, 13 May 2016 21:42:20 +0000 (UTC) Received: by mail-yw0-f177.google.com with SMTP id o66so129798739ywc.3 for ; Fri, 13 May 2016 14:42:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc; bh=jSLyG+eRN/AHVfSxvcmA+yiei5CVOtjNz/vWOEeqybg=; b=bJMn8anFQQR9X6bfMRcVoMQ+JSSv0StXNitOL44NKpGZ+aujTNZ+A8zxlWe4G2izjL H+b5HGqjhJF5eA/y30HPv35DIi6XTzYD2B4pWYYMcgkP9Vs5HjcFVba0zUNrBkOX3188 nKFmjLczdaWD3IkSEEgD8f+3TsBjfF2ly2wQXvl0sYN4QbD5idiDv0PEdyIjXH5SIxSv sjpCt7jxfs3jakEWzXWAyyF8L93q01qUrArUsBEYHXQ/QNgfbMzH5jHJUdIuque/c3mQ Eyj+fqKuAdhpV7msrl2xBgM7EHZx2BMnm/VUADEqHijXDObS4n9uHk1fxpjE0SDiLkny wLcg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc; bh=jSLyG+eRN/AHVfSxvcmA+yiei5CVOtjNz/vWOEeqybg=; b=BHRWg4hAUKfXA8ChEQOZlz8fXtogMfPhN3/iY+5a0o0v4bXDe9MIOoytn1l2eCjjQv TI85h5HyP1UPmD8cfZJFV/ISmchcZw8AOksIW+EpU/oPMOtOvwZXjlwACjlEXWzoqwZn qKzd/8idp71R1h5RsOnTIDuYZOmLMhojaqb3TyrUl+Re1WbqLUT0VNzCnVtq4kkRHGVp qdB3C448WlMMQPsrfmE65TB6D+d0fVJ+dQfle3sbkFHf1Hw/DzocofIz50T6Cai2KZnl ivx0ExqabMLtGIlLKIv87A6kYxTs0nrDIJemys6f0ggFVxLhmzkP0SFIN5S8UryVJduw J1aw== X-Gm-Message-State: AOPr4FVxYPUBiZ4c/hvbODysKPvCCN0Wpliw8yIGvpQ3gW/IHFnIEx8/E9+pBdwT+fW24MV5SgowKAoBMCiPJw== MIME-Version: 1.0 X-Received: by 10.37.48.2 with SMTP id w2mr8595132ybw.86.1463175739453; Fri, 13 May 2016 14:42:19 -0700 (PDT) Received: by 10.13.233.2 with HTTP; Fri, 13 May 2016 14:42:19 -0700 (PDT) In-Reply-To: <57361577.7060207@satoshilabs.com> References: <5735D3A4.7090608@mycelium.com> <5735EC17.5040901@satoshilabs.com> <5735FC99.5090001@satoshilabs.com> <57361577.7060207@satoshilabs.com> Date: Fri, 13 May 2016 14:42:19 -0700 Message-ID: From: Aaron Voisine To: Pavol Rusnak , Sutch Sam , James MacWhyte Content-Type: multipart/alternative; boundary=94eb2c03448831ba290532c026ae X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, FREEMAIL_FROM, HTML_MESSAGE, RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on smtp1.linux-foundation.org Cc: Bitcoin Protocol Discussion Subject: Re: [bitcoin-dev] Bip44 extension for P2SH/P2WSH/... 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: Fri, 13 May 2016 21:42:21 -0000 --94eb2c03448831ba290532c026ae Content-Type: text/plain; charset=UTF-8 That's a valid concern, but I don't see the conflict here. In order to recover funds from a wallet conforming to BIPXX, you must have wallet software that handles BIPXX. Simply making BIPXX backwards compatible with previously created BIP44 or BIP43 purpose 0 wallets doesn't change this at all. Aaron Voisine co-founder and CEO breadwallet On Fri, May 13, 2016 at 10:57 AM, Pavol Rusnak wrote: > On 13/05/16 18:59, Aaron Voisine wrote: > > This scheme is independent of the number of accounts. It works with BIP44 > > as well as BIP43 purpose 0, or any other BIP43 purpose/layout. Instead of > > overloading the account index to indicate the type of address, you use > the > > chain index, which is already being used to indicate what the specific > > address chain is to be used for, i.e. receive vs change addresses. > > I see the advantage here. But there is a major problem here. > > We came up with BIP44 so a wallet can claim it is BIP44 compatible and > you can be 100% sure that you can migrate accounts from one wallet > implementation to another. This was not previously possible when a > wallet claimed it is BIP32 compatible. > > Now we have a similar problem. When there is a BIP44 wallet, does it > mean it supports segwit or not? For this reason I would like to see > another BIPXX for segwit, so a wallet can claim it is BIP44, BIP44+BIPXX > or BIPXX compatible and you'll know what other wallets are compatible > with it. > > -- > Best Regards / S pozdravom, > > Pavol "stick" Rusnak > SatoshiLabs.com > --94eb2c03448831ba290532c026ae Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
That's a valid concern, but I don't see the confli= ct here. In order to recover funds from a wallet conforming to BIPXX, you m= ust have wallet software that handles BIPXX. Simply making BIPXX backwards = compatible with previously created BIP44 or BIP43 purpose 0 wallets doesn&#= 39;t change this at all.

=
=

Aaron Voisine
co-founder and CEObreadwallet

On Fri, May 13, 2016 at 10:57 AM, Pavol Rusn= ak <stick@satoshilabs.com> wrote:
On 13/05/16 18:59, Aaron Voisine wrote:
> This scheme is independent of the number of accounts. It works with BI= P44
> as well as BIP43 purpose 0, or any other BIP43 purpose/layout. Instead= of
> overloading the account index to indicate the type of address, you use= the
> chain index, which is already being used to indicate what the specific=
> address chain is to be used for, i.e. receive vs change addresses.

I see the advantage here. But there is a major problem here.

We came up with BIP44 so a wallet can claim it is BIP44 compatible and
you can be 100% sure that you can migrate accounts from one wallet
implementation to another. This was not previously possible when a
wallet claimed it is BIP32 compatible.

Now we have a similar problem. When there is a BIP44 wallet, does it
mean it supports segwit or not? For this reason I would like to see
another BIPXX for segwit, so a wallet can claim it is BIP44, BIP44+BIPXX or BIPXX compatible and you'll know what other wallets are compatible with it.

--
Best Regards / S pozdravom,

Pavol "stick" Rusnak
SatoshiLabs.com

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