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Date: Mon, 20 Jan 2014 17:35:02 -0500
From: Peter Todd <pete@petertodd.org>
To: Brooks Boyd <boydb@midnightdesign.ws>
Message-ID: <20140120223502.GA1055@petertodd.org>
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Cc: bitcoin-development@lists.sourceforge.net
Subject: Re: [Bitcoin-development] BIP0039: Final call
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On Mon, Jan 20, 2014 at 04:05:14PM -0600, Brooks Boyd wrote:
> On Mon, Jan 20, 2014 at 11:42 AM, slush <slush@centrum.cz> wrote:
>=20
> > Hi all,
> >
> > during recent months we've reconsidered all comments which we received
> > from the community about our BIP39 proposal and we tried to meet all
> > requirements for such standard. Specifically the proposal now doesn't
> > require any specific wordlist, so every client can use its very own lis=
t of
> > preferred words. Generated mnemonic can be then applied to any other
> > BIP39-compatible client. Please follow current draft at
> > https://github.com/trezor/bips/blob/master/bip-0039.mediawiki.
>=20
> So, because the [mnemonic]->[bip32 root] is just hashing, you've
> effectively made your "mnemonic sentence" into a brainwallet? Since every
> mnemonic sentence can now lead to a bip32 root, and only the client that
> created the mnemonic can verify the mnemonic passes its checksum (assuming
> all clients use different wordlists, the only client that can help you if
> you fat-finger the sentence is the client that created it)?

That issue is more than enough to get a NACK from me on making the
current BIP39 draft a standard - I can easily see that leading to users
losing a lot of money.

Have any wallets implemented BIP39 this way already in released code?

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