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 AA81E48B for ; Wed, 22 Jul 2015 21:06:04 +0000 (UTC) X-Greylist: whitelisted by SQLgrey-1.7.6 Received: from mail-lb0-f181.google.com (mail-lb0-f181.google.com [209.85.217.181]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 13E8FE8 for ; Wed, 22 Jul 2015 21:06:04 +0000 (UTC) Received: by lblf12 with SMTP id f12so144721772lbl.2 for ; Wed, 22 Jul 2015 14:06:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=txGr+LzOLurtM1xhe8uCdiHz9mgcmnlpZgeNDtuRiJo=; b=XcM+y19ix69ObGz2iNCcl4wd05D9IQ82SGnD34+cG7LBlCjZtQzv2rqlNroVa88kzU zZc1q96NI6k5oJ4QJaFprIiDDLxUc/HsiuNlLetr1Xt0B1ss4friVO3RMzrSijtEfMya yU+fzPe5FjpBIKNlxclE7sn2eeMwXPq5xQ5iKHiBgwvCRdej1uUEUjDSkPbzipUy5U76 PhESA8/SClJJORD57ZN55XvArvRz+f8CpszOhr4gzhvheQBRqfcPIK/37XCuzm4U5taH bvYINynAdUDW7V0d2ECohqlnMfAQ9nl8aXgsjebHYuSOoJsprskx92C5u7D4DCL93jNa Cg+g== MIME-Version: 1.0 X-Received: by 10.112.8.108 with SMTP id q12mr4173556lba.113.1437599162133; Wed, 22 Jul 2015 14:06:02 -0700 (PDT) Received: by 10.25.90.75 with HTTP; Wed, 22 Jul 2015 14:06:02 -0700 (PDT) In-Reply-To: References: Date: Wed, 22 Jul 2015 17:06:02 -0400 Message-ID: From: Gavin Andresen To: Tier Nolan Content-Type: multipart/alternative; boundary=001a1135e3d663740d051b7d2389 X-Spam-Status: No, score=-2.7 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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-dev@lists.linuxfoundation.org Subject: Re: [bitcoin-dev] BIP: Short Term Use Addresses for Scalability 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 21:06:04 -0000 --001a1135e3d663740d051b7d2389 Content-Type: text/plain; charset=UTF-8 On Wed, Jul 22, 2015 at 4:34 PM, Tier Nolan via bitcoin-dev < bitcoin-dev@lists.linuxfoundation.org> wrote: > It also requires most clients to be updated to support the new address > system. That's the killer: introducing Yet Another Type of Bitcoin Address takes a very long time and requires a lot of people to change their code. At least, that was the lesson learned when we introduced P2SH addresses. I think it's just not worth it for a very modest space savings (10 bytes, when scriptSig+scriptPubKey is about 120 bytes), especially with the extreme decrease in security (going from 2^160 to 2^80 to brute-force). -- -- Gavin Andresen --001a1135e3d663740d051b7d2389 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
On W= ed, Jul 22, 2015 at 4:34 PM, Tier Nolan via bitcoin-dev &= lt;bitcoin-dev@lists.linuxfoundation.org> wrote:
It also requires most clients to be updated to suppor= t the new address system.

That's the killer: intr= oducing Yet Another Type of Bitcoin Address takes a very long time and requ= ires a lot of people to change their code. At least, that was the lesson le= arned when we introduced P2SH addresses.
I think it's just not worth it for a= very modest space savings (10 bytes, when scriptSig+scriptPubKey is about = 120 bytes), especially with the extreme decrease in security (going from 2^= 160 to 2^80 to brute-force).

--
--
Gavin Andresen

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