diff options
| author | Alistair Mann <al@pectw.net> | 2019-03-17 16:11:29 +0000 |
|---|---|---|
| committer | bitcoindev <bitcoindev@gnusha.org> | 2019-03-17 16:11:37 +0000 |
| commit | cd9324a29043f03fba1a780b8916c4a587ad82a4 (patch) | |
| tree | 02842b9ef3dd9235e3d17338970789c6cbb875b7 /e5 | |
| parent | 0056d613016d766d406dd5fc776c564c1dc84017 (diff) | |
| download | pi-bitcoindev-cd9324a29043f03fba1a780b8916c4a587ad82a4.tar.gz pi-bitcoindev-cd9324a29043f03fba1a780b8916c4a587ad82a4.zip | |
Re: [bitcoin-dev] Pre BIP: Solving for spam and other abuse with an HTLB
Diffstat (limited to 'e5')
| -rw-r--r-- | e5/9f42750ab8938b41d0cad24f3cfed984e1b663 | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/e5/9f42750ab8938b41d0cad24f3cfed984e1b663 b/e5/9f42750ab8938b41d0cad24f3cfed984e1b663 new file mode 100644 index 000000000..935494b60 --- /dev/null +++ b/e5/9f42750ab8938b41d0cad24f3cfed984e1b663 @@ -0,0 +1,85 @@ +Return-Path: <al@pectw.net> +Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org + [172.17.192.35]) + by mail.linuxfoundation.org (Postfix) with ESMTPS id 7CDD2259D + for <bitcoin-dev@lists.linuxfoundation.org>; + Sun, 17 Mar 2019 16:11:37 +0000 (UTC) +X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 +Received: from pectw.vm.bytemark.co.uk (pectw.vm.bytemark.co.uk [80.68.92.123]) + by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 117ACD3 + for <bitcoin-dev@lists.linuxfoundation.org>; + Sun, 17 Mar 2019 16:11:33 +0000 (UTC) +DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=pectw.net; + s=dkim_test; + h=Content-Type:Content-Transfer-Encoding:MIME-Version: + References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To: + Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: + Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: + List-Subscribe:List-Post:List-Owner:List-Archive; + bh=Mp0eqInsnG9QaGtcsPJA4ccY00M8E+7xMm4iv8Y+yAM=; + b=k/lbf9S9r5WLz4qZMsIxczi8av + /HmDM4zgIbMynT7jEsyVjKOl9/pzihqM5gOorCo473/fevdbOjQ+jJHf00F6txq0JeTnFuoLeJiFS + 6f5Kx6HEtcvaP97oJNFwig/BY; +Received: from host86-164-47-72.range86-164.btcentralplus.com ([86.164.47.72] + helo=svetlana.localhost) by pectw.vm.bytemark.co.uk with esmtpsa + (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) + (envelope-from <al@pectw.net>) + id 1h5YNn-0007xg-K6; Sun, 17 Mar 2019 16:11:31 +0000 +From: Alistair Mann <al@pectw.net> +To: ZmnSCPxj <ZmnSCPxj@protonmail.com> +Date: Sun, 17 Mar 2019 16:11:29 +0000 +Message-ID: <119468467.Oh7zB5fVM7@dprfs-d5766> +User-Agent: KMail/4.14.2 (Linux/4.4.0-18-generic; KDE/4.14.2; x86_64; ; ) +In-Reply-To: <HT17PPZYL6SJ91sO2mrEmAZ6RaCoAPBSmF3cphDMx5bqjCFNgbfof5l-TfAS5RsfuyPEV_xUqyJDbfCONeefog8Tz3eLz4NhXGPDiKzTKHg=@protonmail.com> +References: <12139028.TiJ4v5RR02@dprfs-d5766> + <HT17PPZYL6SJ91sO2mrEmAZ6RaCoAPBSmF3cphDMx5bqjCFNgbfof5l-TfAS5RsfuyPEV_xUqyJDbfCONeefog8Tz3eLz4NhXGPDiKzTKHg=@protonmail.com> +MIME-Version: 1.0 +Content-Transfer-Encoding: 7Bit +Content-Type: text/plain; charset="us-ascii" +X-Spam-Status: No, score=-1.5 required=5.0 tests=BAYES_00,DKIM_SIGNED, + DKIM_VALID,DKIM_VALID_AU,URI_NOVOWEL autolearn=ham version=3.3.1 +X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on + smtp1.linux-foundation.org +X-Mailman-Approved-At: Mon, 18 Mar 2019 17:05:05 +0000 +Cc: Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org> +Subject: Re: [bitcoin-dev] Pre BIP: Solving for spam and other abuse with an + HTLB +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: Sun, 17 Mar 2019 16:11:37 -0000 + +Many thanks for your thoughts, ZmnSCPxj. + +> I believe there is indeed an important usecase for HTLB over HTLC, which is +> to improve the anonymity set. An HTLB over HTLC would be indistinguishable +> onchain from other uses of HTLC; assuming that HTLCs have other uses, this +> is a (small?) plus to privacy. +> +> Note that the redundant <digest> would have to be given by Alice to Bob, +> since using a standardized one will also reveal use of HTLB over HTLC +> instead of hiding it among other HTLC UTXOs. + +Both these are good observations and I'll act on them. + +> Another thing to improve privacy would be to apply the Funding Transaction +> pattern: https://zmnscpxj.github.io/offchain/generalized.html +<snip> + +I've not read of the FTP before; I welcome it, and take on board that it +improves privacy by keeping a script offline. My first thought is that doesn't +affect the suggested BIP, so my next update here won't include it. I recognise +it would improve mainnet use of scripts though, so do expect to return to it. + +Cheers, +-- +Alistair Mann + |