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| author | Gregory Maxwell <greg@xiph.org> | 2017-06-19 22:41:49 +0000 |
|---|---|---|
| committer | bitcoindev <bitcoindev@gnusha.org> | 2017-06-19 22:41:51 +0000 |
| commit | 27497200dc2053feeac4c9f424503e6685e5e520 (patch) | |
| tree | 3a1cbc13b15ed7c319450db993ffdf248f3cab63 | |
| parent | 3f2f701bf03d9b6896334596224e46fd0f64f8a6 (diff) | |
| download | pi-bitcoindev-27497200dc2053feeac4c9f424503e6685e5e520.tar.gz pi-bitcoindev-27497200dc2053feeac4c9f424503e6685e5e520.zip | |
Re: [bitcoin-dev] BIP Proposal: Compact Client Side Filtering for Light Clients
| -rw-r--r-- | 06/e772e48cc57bcd80e3b7644f2be33a4f1e4309 | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/06/e772e48cc57bcd80e3b7644f2be33a4f1e4309 b/06/e772e48cc57bcd80e3b7644f2be33a4f1e4309 new file mode 100644 index 000000000..b63f64525 --- /dev/null +++ b/06/e772e48cc57bcd80e3b7644f2be33a4f1e4309 @@ -0,0 +1,97 @@ +Return-Path: <gmaxwell@gmail.com> +Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org + [172.17.192.35]) + by mail.linuxfoundation.org (Postfix) with ESMTPS id 42FCFB44 + for <bitcoin-dev@lists.linuxfoundation.org>; + Mon, 19 Jun 2017 22:41:51 +0000 (UTC) +X-Greylist: whitelisted by SQLgrey-1.7.6 +Received: from mail-vk0-f47.google.com (mail-vk0-f47.google.com + [209.85.213.47]) + by smtp1.linuxfoundation.org (Postfix) with ESMTPS id D93E8140 + for <bitcoin-dev@lists.linuxfoundation.org>; + Mon, 19 Jun 2017 22:41:50 +0000 (UTC) +Received: by mail-vk0-f47.google.com with SMTP id p62so60324991vkp.0 + for <bitcoin-dev@lists.linuxfoundation.org>; + Mon, 19 Jun 2017 15:41:50 -0700 (PDT) +DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; + h=mime-version:sender:in-reply-to:references:from:date:message-id + :subject:to; bh=IagbTYnf+r9yEyOUTGLXx0/thAzO1R9fP6+Y68wlfA4=; + b=JPgNTkh1ewpaBXJZimIfRsbgbkD5qrPkSadpxpNry7c3UwAx0QmdsHUhe/DsYg9Bfn + mw123YA3mnb5iNf8LmCF7Q7Nhkej1SarC8E9zp5zvr2PFS93GzvFEbEM67g3QGkEbUY1 + ///VICnjIpC6zcXLWQSWEiMONWtclO/H1B9cjIkM9Lv4p5GkCnHxzDbZLXgC9n0TvmDv + 8uplFvryllLs4sIicr05dmDwqTyZGaPYrHNcPPyovV1i7nIBmo3/0uOCdBt8bBnB7mha + UNmLN4baYjtxl96Gg2g/Lo0IVZM4jEu7YN30rtlXW1p55Wcaw4KhjJcH1Ka8Q6FFEwqe + Z8JA== +X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; + d=1e100.net; s=20161025; + h=x-gm-message-state:mime-version:sender:in-reply-to:references:from + :date:message-id:subject:to; + bh=IagbTYnf+r9yEyOUTGLXx0/thAzO1R9fP6+Y68wlfA4=; + b=B6fy+i3pf13UgzEtQxH820sQPWykJyPunQPTJ8jTC5qsEv3atPKKCBP+H70xqAis4R + eqMK9DEfXhjM4u6azayF4abJHC+gdQUD2JHQeZ3j5TlrebDtDTgwLbeP5NIjrAeO2uxl + NCd7sXmu0dQwGgl1K8W8qrtvQJmjX/0eRzmvH7B/I+C6TxlqDTuTfWZ8zBSoU6kWCUVf + EyvZ5kKIXkWaqF3FIX4MWlBL6/aTvicAAUM8Bzb+BIg3PtOK0s7HogpeKhyY0u+omLSY + pCPz1i9eQ2+Vo7DHn8DD2v5Hb+WdD4/1cx0aKN3ChACgfO7YQ7XJRyZAntIjjVqpF5r8 + Z7YQ== +X-Gm-Message-State: AKS2vOz8Wgx6T29/667MvNNG6kQrSbcKkRVheQ1QXgVkxlXw7epHQ85z + /5HCENcb9T1x6i1ONPwJWVIQHljuVG/V +X-Received: by 10.31.10.198 with SMTP id 189mr7125793vkk.36.1497912109740; + Mon, 19 Jun 2017 15:41:49 -0700 (PDT) +MIME-Version: 1.0 +Sender: gmaxwell@gmail.com +Received: by 10.103.13.7 with HTTP; Mon, 19 Jun 2017 15:41:49 -0700 (PDT) +In-Reply-To: <537fb7106e0387c77537f0b1279cbeca@cock.lu> +References: <CAO3Pvs8ccTkgrecJG6KFbBW+9moHF-FTU+4qNfayeE3hM9uRrg@mail.gmail.com> + <oi8e8k$g56$1@blaine.gmane.org> + <537fb7106e0387c77537f0b1279cbeca@cock.lu> +From: Gregory Maxwell <greg@xiph.org> +Date: Mon, 19 Jun 2017 22:41:49 +0000 +X-Google-Sender-Auth: 1wC9P9IkyLcuSDLn1uxmYY7TiaY +Message-ID: <CAAS2fgQ4nfYrRasm7jwx4B86fNKb6NvpHy-Dt=3bfiaNt10snA@mail.gmail.com> +To: Bitcoin Dev <bitcoin-dev@lists.linuxfoundation.org> +Content-Type: text/plain; charset="UTF-8" +X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,DKIM_SIGNED, + DKIM_VALID, FREEMAIL_FROM, + RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 +X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on + smtp1.linux-foundation.org +Subject: Re: [bitcoin-dev] BIP Proposal: Compact Client Side Filtering for + Light Clients +X-BeenThere: bitcoin-dev@lists.linuxfoundation.org +X-Mailman-Version: 2.1.12 +Precedence: list +List-Id: Bitcoin Protocol Discussion <bitcoin-dev.lists.linuxfoundation.org> +List-Unsubscribe: <https://lists.linuxfoundation.org/mailman/options/bitcoin-dev>, + <mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=unsubscribe> +List-Archive: <http://lists.linuxfoundation.org/pipermail/bitcoin-dev/> +List-Post: <mailto:bitcoin-dev@lists.linuxfoundation.org> +List-Help: <mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=help> +List-Subscribe: <https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev>, + <mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=subscribe> +X-List-Received-Date: Mon, 19 Jun 2017 22:41:51 -0000 + +On Mon, Jun 19, 2017 at 12:26 PM, bfd--- via bitcoin-dev +<bitcoin-dev@lists.linuxfoundation.org> wrote: +> Several times. It's been debated if unconfirmed transactions are necessary, +> methods of doing more private filtering have been suggested, along with +> simply not filtering unconfirmed transactions at all. My collected data +> suggests that there is very little use of BIP37 at present, based on +> incoming connections to nodes I know end up in the DNS seed responses (no +> "SPV" clients do their own peer management). + +Sending just the output addresses of each transaction would use about +1 kilobit/s of data. Sending the entire transactions would use +~14kbit/sec data. These don't seem to be a unsustainable tremendous +amount of data to use while an application is running. + +Doubly so for SPV wallets which are highly vulnerable to unconfirmed +transactions, and many which last I heard testing reports on became +pretty severely corrupted once given a fake transaction. + +Can someone make a case why saving no more than those figures would +justify the near total loss of privacy that filtering gives? + +"Because they already do it" isn't a good argument when talking about +a new protocol feature; things which already do BIP37 will presumably +continue to already do BIP37. + |