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 AA7F845E for ; Wed, 22 Jul 2015 21:18:52 +0000 (UTC) X-Greylist: whitelisted by SQLgrey-1.7.6 Received: from mail-ie0-f179.google.com (mail-ie0-f179.google.com [209.85.223.179]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 361D31AD for ; Wed, 22 Jul 2015 21:18:52 +0000 (UTC) Received: by iebmu5 with SMTP id mu5so177062278ieb.1 for ; Wed, 22 Jul 2015 14:18:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=vinumeris.com; s=google; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=iqnKa/MG1LvJ33OCjgBKf2h2pC1k5cDXQfuDHn32ui0=; b=NHchNQRSlwhP2ZKeRAblh2I3nVj/lFF0Gbkyjbk1eoSB/e+eB5iH6CCTfYPyrgJrSY fE5L9XmG4ASYBat1Qdy4lp5TycNBKS+3FuR2rhIVvZhFbM78LpkaLSNgbjQbPPO0YjY8 Won3IGo7jzX3kWkB6JN+WkkMAwy8AlmF4bmPg= 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:content-type; bh=iqnKa/MG1LvJ33OCjgBKf2h2pC1k5cDXQfuDHn32ui0=; b=J20Qyfr1oSlUYENJsCyMSCp4tk5JE659fkfk7+IyOL8QS2K9fstHsj4W6kGPrnerDb ofvX4Q1/TzHfEo54MDDRo+ovGfcOc+mVW31iAcIXKSB+TrVHC0uMr4oWefR1KdX5GEmX 0xupWSIjIl3if5CatrYIXz+wv0xAwQ/3sNua/zqOboK3kavfabqXj+zbs8o5bRrcSEw4 Tj6RKN49T5YYc6/5XapfvhEiNyMQmIr+yU0XR+LarpVgtiqo4yJn+5sZLydL9LW66Ae4 nZAe/Pa9QNAW0BoYm4n2cX7wHqmfI7/aQNfUumdg6pAvnFCCrDuUuF7iw/KExV7koh1f kQ8g== X-Gm-Message-State: ALoCoQnh3/b0zvbIhi5kjZtsFKdnrpxamrYhYmsF3yx3WthgELecAVeZeccE3PGBeOiimDjhUvKD MIME-Version: 1.0 X-Received: by 10.50.50.228 with SMTP id f4mr5784793igo.19.1437599931687; Wed, 22 Jul 2015 14:18:51 -0700 (PDT) Received: by 10.50.108.111 with HTTP; Wed, 22 Jul 2015 14:18:51 -0700 (PDT) In-Reply-To: References: <55AFBBE6.3060702@electrum.org> Date: Wed, 22 Jul 2015 23:18:51 +0200 Message-ID: From: Mike Hearn To: =?UTF-8?B?Sm9zZXBoIEdsZWFzb24g4pGI?= Content-Type: multipart/alternative; boundary=047d7bd75cb041f62f051b7d510c X-Spam-Status: No, score=-2.7 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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-dev@lists.linuxfoundation.org Subject: Re: [bitcoin-dev] Making Electrum more anonymous X-BeenThere: bitcoin-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Bitcoin Development Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 22 Jul 2015 21:18:52 -0000 --047d7bd75cb041f62f051b7d510c Content-Type: text/plain; charset=UTF-8 > > One solution would be for the client to combine all the addresses they are > interested in into a single bloom filter and send that to the server. > Hey Joseph, All those ideas are ones we had years ago and they are implemented in the current Bitcoin protocol. The trick, as you may know, is this bit: The client would also need to be fairly clever > It turns out making a sufficiently clever client to fool even advanced observers is a lot of programming work, assuming you wish for the Ultimate Solution which lets you allocate a desired quantity of bandwidth and then use it to maximize privacy. --047d7bd75cb041f62f051b7d510c Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
One solution would be for = the client to combine all the addresses they are interested in into a singl= e bloom filter and send that to the server.
<snip extra ideas>

Hey Joseph,<= /div>

All those ideas are ones we had years ago and they= are implemented in the current Bitcoin protocol.

= The trick, as you may know, is this bit:=C2=A0

The client would also need to = be fairly clever

It turns out m= aking a sufficiently clever client to fool even advanced observers is a lot= of programming work, assuming you wish for the Ultimate Solution which let= s you allocate a desired quantity of bandwidth and then use it to maximize = privacy.
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