From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sog-mx-4.v43.ch3.sourceforge.com ([172.29.43.194] helo=mx.sourceforge.net) by sfs-ml-1.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1We0OB-000133-Gl for bitcoin-development@lists.sourceforge.net; Sat, 26 Apr 2014 11:03:23 +0000 X-ACL-Warn: Received: from wp059.webpack.hosteurope.de ([80.237.132.66]) by sog-mx-4.v43.ch3.sourceforge.com with esmtps (TLSv1:AES256-SHA:256) (Exim 4.76) id 1We0O9-0004t9-Sv for bitcoin-development@lists.sourceforge.net; Sat, 26 Apr 2014 11:03:23 +0000 Received: from [37.143.74.116] (helo=[192.168.0.105]); authenticated by wp059.webpack.hosteurope.de running ExIM with esmtpsa (TLS1.0:RSA_AES_128_CBC_SHA1:16) id 1We0O3-0005XP-8F; Sat, 26 Apr 2014 13:03:15 +0200 Content-Type: multipart/signed; boundary="Apple-Mail=_DF7B3353-2335-4869-B7E1-CC61C7AEFB68"; protocol="application/pgp-signature"; micalg=pgp-sha1 Mime-Version: 1.0 (Mac OS X Mail 7.2 \(1874\)) From: Tamas Blummer In-Reply-To: Date: Sat, 26 Apr 2014 13:03:14 +0200 Message-Id: <030D56FC-165A-4DC2-B5A2-198A4BE7F4B7@bitsofproof.com> References: <1398437607.23028.110362141.03111A2A@webmail.messagingengine.com> <535B8C43.8030502@gmx.de> To: Tier Nolan X-Mailer: Apple Mail (2.1874) X-bounce-key: webpack.hosteurope.de; tamas@bitsofproof.com; 1398510201; 2e60ac98; X-Spam-Score: 1.0 (+) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. 1.0 HTML_MESSAGE BODY: HTML included in message X-Headers-End: 1We0O9-0004t9-Sv Cc: Bitcoin Dev Subject: Re: [Bitcoin-development] BIP32 "wallet structure" in use? Remove it? 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: Sat, 26 Apr 2014 11:03:23 -0000 --Apple-Mail=_DF7B3353-2335-4869-B7E1-CC61C7AEFB68 Content-Type: multipart/alternative; boundary="Apple-Mail=_132BE00B-DDB7-446F-8DD0-CCAF5D53F926" --Apple-Mail=_132BE00B-DDB7-446F-8DD0-CCAF5D53F926 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=windows-1252 Actually gap in parallel branches already fails with BIP64 as it starts = with m/64'/=85. without having m/63' Regards, Tamas Blummer http://bitsofproof.com On 26.04.2014, at 12:59, Tamas Blummer wrote: > Yes, it is expensive but possible to discover any funds associated = with a seed, provided there are set limits to: >=20 > 1. gap of address use (e.g. 20) > 2. depth of hierarchy (e.g. 6) > 3. gap in use of parallel branches (e.g. 0)=20 >=20 > I would pick the limits in brackets above.=20 >=20 > Regards, >=20 > Tamas Blummer > http://bitsofproof.com >=20 > On 26.04.2014, at 12:48, Tier Nolan wrote: >=20 >> Maybe the solution is to have a defined way to import an unknown = wallet? >>=20 >> This means that the gap space and a search ordering needs to be = defined. >>=20 >> Given a blockchain and a root seed, it should be possible to find all = the addresses for that root seed. >>=20 >> The hierarchy that the wallet actually uses could be anything. >=20 --Apple-Mail=_132BE00B-DDB7-446F-8DD0-CCAF5D53F926 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=windows-1252 Actually gap in parallel branches already fails with = BIP64 as it starts with m/64'/=85. without having m/63'

Regards,

Tamas = Blummer
http://bitsofproof.com

On 26.04.2014, at 12:59, Tamas Blummer <tamas@bitsofproof.com> = wrote:

Yes, = it is expensive but possible to discover any funds associated with a = seed, provided there are set limits to:

1. gap of = address use (e.g. 20)
2. depth of hierarchy (e.g. = 6)
3. gap in use of parallel branches (e.g. = 0) 

I would pick the limits in brackets = above. 

Regards,

Tamas Blummer
http://bitsofproof.com

On 26.04.2014, at 12:48, Tier Nolan <tier.nolan@gmail.com> = wrote:

Maybe the solution is to have a = defined way to import an unknown wallet?

This means that the gap = space and a search ordering needs to be defined.

Given a = blockchain and a root seed, it should be possible to find all the = addresses for that root seed.

The hierarchy that the wallet actually uses could be = anything.

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