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 0C361413 for ; Thu, 11 Aug 2016 13:55:54 +0000 (UTC) X-Greylist: whitelisted by SQLgrey-1.7.6 Received: from mail-yb0-f169.google.com (mail-yb0-f169.google.com [209.85.213.169]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 83387155 for ; Thu, 11 Aug 2016 13:55:53 +0000 (UTC) Received: by mail-yb0-f169.google.com with SMTP id e125so1457489ybc.0 for ; Thu, 11 Aug 2016 06:55:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:from:date:message-id :subject:to:cc; bh=J9MXK884grA5935TLHIoqUYGcm2Sbg84Ma+Ql4jm/tM=; b=WKdDK0PN+QyyRpjUVqjn6O52jN+6pIMSjT3q1RXyG8Kxc86qoSQkyuOVNE5AxM1H5M DXql1e1z5LXId9aaV/9nWtpvYYEMqYruBhByKL4zh8Iv7X1wrkB9H9Ece23W0eO3PH+I n7iLdDoy0GM2nLTcboX7cVGsW+8zrug2JdDqMnzD0ayjlPYMEAHZnzX+sQ6Q2KCsFx3I rRoWAyMJjFh7ud/kIzPnGiwb6ckzBNQ3obMbKosA6IZuF834hZK2RJJE6N4oyqSSUyl0 aTZQOKL/pyAe+PxM8El+wFQrAiCi75S0tvDPMEue05Irlzlf3fXc1AVZJxYJvCtvZTkP JjQw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:sender:in-reply-to:references:from :date:message-id:subject:to:cc; bh=J9MXK884grA5935TLHIoqUYGcm2Sbg84Ma+Ql4jm/tM=; b=BqOnmtxkEzFTY7PdSnD049TizTYEG0vNfs0Nz/COlM7CyGOs2dcE58FVH1AH5v6X6/ V63aAeMPieRkTNZEeri5gHcUSHzBtAnkeANIKr6uhcjAXNHCnipAsRoPCcuAMQZSMRy0 +XG29M75AcKMViSsLSxw4GwpaVAJvbSFG2VU6P3lsgYdQe5tLIo0VppMqj1mHpTnrRNC esnedw8CMlEmB+/+w3LDyEYVsKX8UEEliscWllYbavezzEg0xb17cbIIOysMX4qgImZ0 ImMSQuMOk8Nr2bamxcaZZlDGVqE/auxyBwWU+/la3X/szGuPcGTU2HqtFtuBL4KMZMZ5 GGHQ== X-Gm-Message-State: AEkoousX3rwsLOFmmWJbCA0ZgfoUjmjQquIPb6x0CrMU11N6nwUf9tG/BF6pic2JPqGYuj8VJomaCHfkerW8nA== X-Received: by 10.37.210.197 with SMTP id j188mr6292937ybg.52.1470923752801; Thu, 11 Aug 2016 06:55:52 -0700 (PDT) MIME-Version: 1.0 Sender: earonesty@gmail.com Received: by 10.37.88.214 with HTTP; Thu, 11 Aug 2016 06:55:51 -0700 (PDT) In-Reply-To: References: From: Erik Aronesty Date: Thu, 11 Aug 2016 09:55:51 -0400 X-Google-Sender-Auth: _zkFIwQY-9xkPYeS7ipWeUqqlD0 Message-ID: To: Pieter Wuille Content-Type: multipart/alternative; boundary=94eb2c065502c70e160539cc1fe0 X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,FREEMAIL_FROM,HTML_MESSAGE,RCVD_IN_DNSWL_LOW 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] BIP Number Request: Addresses over Audio 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: Thu, 11 Aug 2016 13:55:54 -0000 --94eb2c065502c70e160539cc1fe0 Content-Type: text/plain; charset=UTF-8 Sorr, I thought there was some BIP for a public seed such that someone can generate new random addresses, but cannot trivially verify whether an address was derived from the seed. On Wed, Aug 10, 2016 at 1:38 PM, Pieter Wuille wrote: > On Wed, Aug 10, 2016 at 7:28 PM, Erik Aronesty via bitcoin-dev > wrote: > > By sending a public seed, there's no way for someone to use the > transmitted > > address and trace the total amount of payments to it. > > Worse. By revealing a public seed, anyone who has seen it (= anyone > who ever pays you through it) can identity all payments to _any_ > address derived from that seed. > > -- > Pieter > --94eb2c065502c70e160539cc1fe0 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Sorr, I thought there was some BIP for a public seed such = that someone can generate new random addresses, but cannot trivially verify= whether an address was derived from the seed.

On Wed, Aug 10, 2016 at 1:38 PM, Pie= ter Wuille <pieter.wuille@gmail.com> wrote:
On Wed, Aug 10, 2016 at 7:28 PM, E= rik Aronesty via bitcoin-dev
<bitcoin-dev@li= sts.linuxfoundation.org> wrote:
> By sending a public seed,=C2=A0 there's no way for someone to use = the transmitted
> address and trace the total amount of payments to it.

Worse. By revealing a public seed, anyone who has seen it (=3D anyon= e
who ever pays you through it) can identity all payments to _any_
address derived from that seed.

--
Pieter

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