Received: from sog-mx-4.v43.ch3.sourceforge.com ([172.29.43.194] helo=mx.sourceforge.net) by sfs-ml-4.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1W5YJ8-00051U-HX for bitcoin-development@lists.sourceforge.net; Tue, 21 Jan 2014 10:11:46 +0000 Received-SPF: pass (sog-mx-4.v43.ch3.sourceforge.com: domain of gmail.com designates 209.85.214.177 as permitted sender) client-ip=209.85.214.177; envelope-from=mh.in.england@gmail.com; helo=mail-ob0-f177.google.com; Received: from mail-ob0-f177.google.com ([209.85.214.177]) by sog-mx-4.v43.ch3.sourceforge.com with esmtps (TLSv1:RC4-SHA:128) (Exim 4.76) id 1W5YJ7-0001Ue-Ey for bitcoin-development@lists.sourceforge.net; Tue, 21 Jan 2014 10:11:46 +0000 Received: by mail-ob0-f177.google.com with SMTP id wp18so6458614obc.36 for ; Tue, 21 Jan 2014 02:11:40 -0800 (PST) MIME-Version: 1.0 X-Received: by 10.60.16.230 with SMTP id j6mr6027626oed.47.1390299099913; Tue, 21 Jan 2014 02:11:39 -0800 (PST) Sender: mh.in.england@gmail.com Received: by 10.76.99.112 with HTTP; Tue, 21 Jan 2014 02:11:39 -0800 (PST) In-Reply-To: References: <300D31FC-FB89-4386-8DD9-F5FA792D0B40@bitsofproof.com> Date: Tue, 21 Jan 2014 10:11:39 +0000 X-Google-Sender-Auth: _vpFjLUwi4yEgyzcSGxJV0zivo4 Message-ID: From: Mike Hearn To: Gary Rowe Content-Type: multipart/alternative; boundary=e89a8f503bb2fb6b5f04f0783bc8 X-Spam-Score: -0.5 (/) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. -1.5 SPF_CHECK_PASS SPF reports sender host as permitted sender for sender-domain 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (mh.in.england[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 1.0 HTML_MESSAGE BODY: HTML included in message 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-Headers-End: 1W5YJ7-0001Ue-Ey Cc: Bitcoin Development List Subject: Re: [Bitcoin-development] BIP0039: Final call 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: Tue, 21 Jan 2014 10:11:46 -0000 --e89a8f503bb2fb6b5f04f0783bc8 Content-Type: text/plain; charset=UTF-8 We should just perform Unicode canonicalization before any text hits the crypto code. There are algorithms that automatically resolve such issues. Although with an English wordlist it would seem to make no difference anyway. On Tue, Jan 21, 2014 at 10:01 AM, Gary Rowe wrote: > MultiBit here. > > >At least Trezor and bitcoinj (Multibit) seems to be going in this way, > >which is 100% of clients which expressed interest in bip39 :-). > > > >slush > > We'll be using the BIP39 implementation present in Bitcoinj as slush says. > > >Proper Unicode handling is a serious issue however. You don't want > >someone to move from one input method / machine to another and > >suddenly find that their coins are inaccessible, because of an issue > >of decomposed vs. compatibility forms or whatever. > > We generate the word list internally (12,18,24) and confirm it is entered > correctly through a retyping operation. This will allow us to detect > character encoding transpositions (e.g. u0032 vs u00a0) and alert the user > before it becomes an issue. > > While English is the language of the first word list to be implemented, we > would definitely integrate alternative non-English word lists to make life > easier for the global community. In general the approach would be for the > user to select their language (implying a locale) and then the word list to > be selected from that locale if available with a fallback to English. This > follows the same approach as resource bundles in Java. > > > > > ------------------------------------------------------------------------------ > CenturyLink Cloud: The Leader in Enterprise Cloud Services. > Learn Why More Businesses Are Choosing CenturyLink Cloud For > Critical Workloads, Development Environments & Everything In Between. > Get a Quote or Start a Free Trial Today. > > http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk > _______________________________________________ > Bitcoin-development mailing list > Bitcoin-development@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bitcoin-development > > --e89a8f503bb2fb6b5f04f0783bc8 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
We should just perform Unicode canonicalization before any= text hits the crypto code. =C2=A0There are algorithms that automatically r= esolve such issues. Although with an English wordlist it would seem to make= no difference anyway.


On Tue, Jan 2= 1, 2014 at 10:01 AM, Gary Rowe <g.rowe@froot.co.uk> wrote:<= br>
MultiBit here.=C2=A0

>At leas= t Trezor and bitcoinj (Multibit) seems to be going in this way,
>whic= h is 100% of clients which expressed interest in bip39 :-).
>
>= slush

We'll be using the BIP39 implementation present in Bitcoinj as slush sa= ys.=C2=A0

>Proper Unicode handling is a serious issue howev= er. You don't want
>someone to move from one input method / machine to another and<= br style=3D"font-family:arial,sans-serif;font-size:12.800000190734863px">&= gt;suddenly find that their coins are inaccessible, because of an issue
>of decomposed vs. compatibility forms or whatever.

We generate the word list int= ernally (12,18,24) and confirm it is entered correctly through a retyping o= peration. This will allow us to detect character encoding transpositions (e= .g. u0032 vs u00a0) and alert the user before it becomes an issue.

While= English is the language of the first word list to be implemented, we would= definitely integrate alternative non-English word lists to make life easie= r for the global community. In general the approach would be for the user t= o select their language (implying a locale) and then the word list to be se= lected from that locale if available with a fallback to English. This follo= ws the same approach as resource bundles in Java.


<= /div>

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Learn Why More Businesses Are Choosing CenturyLink Cloud For
Critical Workloads, Development Environments & Everything In Between. Get a Quote or Start a Free Trial Today.
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