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 345B0104A for ; Thu, 14 Mar 2019 07:55:31 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mail-40135.protonmail.ch (mail-40135.protonmail.ch [185.70.40.135]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 99E1882B for ; Thu, 14 Mar 2019 07:55:29 +0000 (UTC) Date: Thu, 14 Mar 2019 07:55:20 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com; s=default; t=1552550127; bh=5s+f1HS5BPnI4OC+pQ9OasZf8OOiSM4v4y7VCtB+c5Y=; h=Date:To:From:Cc:Reply-To:Subject:In-Reply-To:References: Feedback-ID:From; b=cpvYhOaUaik0d0a6OERSbhqavbU8tSq8s6FX9IXwRd7U6wyr4P+mCpPQ0NxYv3mMW S4/4QPvWWkJc62w2yYqQx9XFcZoGk6e7Xwyg1pi07UULOjdF+k/EqHBQ2KDGIXooLK 5U7nnTQQmfU4pVZtvlAZ1hvSEqhOW32sCU6aFYC8= To: Anthony Towns From: ZmnSCPxj Reply-To: ZmnSCPxj Message-ID: In-Reply-To: <20190314072456.br2leoiae6zs2jv2@erisian.com.au> References: <20190313014143.ifffshwdux2jt7w5@erisian.com.au> <20190313111050.qj3s6utpl2x34sam@erisian.com.au> <20190314072456.br2leoiae6zs2jv2@erisian.com.au> Feedback-ID: el4j0RWPRERue64lIQeq9Y2FP-mdB86tFqjmrJyEPR9VAtMovPEo9tvgA0CrTsSHJeeyPXqnoAu6DN-R04uJUg==:Ext:ProtonMail MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Spam-Status: No, score=-2.2 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, FREEMAIL_FROM, FROM_LOCAL_NOVOWEL, 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 X-Mailman-Approved-At: Thu, 14 Mar 2019 10:35:59 +0000 Cc: "bitcoin-dev@lists.linuxfoundation.org" , "lightning-dev@lists.linuxfoundation.org" Subject: Re: [bitcoin-dev] [Lightning-dev] More thoughts on NOINPUT safety 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, 14 Mar 2019 07:55:31 -0000 Good morning aj, > > Trying to maximise privacy there has the disadvantage that you have to > do a new signature for every in-flight HTLC every time you update the > state, which could be a lot of signatures for very active channels. If I remember accurately this is already true for current Poon-Dryja channe= ls in BOLT 1.0, so at least it is not a degradation of performance. It does make this modified form of Decker-Russell-Osuntokun much less attra= ctive for use with DLC as the Fulgurite effort would like, but the Fulgurit= e effort already mitigates this by splitting a channel into two sub-channel= s (one for high-activity LN payments, one for rare-activity DLC bets) anywa= y. Regards, ZmnSCPxj