Return-Path: Received: from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133]) by lists.linuxfoundation.org (Postfix) with ESMTP id CB5E4C0176 for ; Sat, 23 May 2020 11:01:08 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by hemlock.osuosl.org (Postfix) with ESMTP id BA0D2883DA for ; Sat, 23 May 2020 11:01:08 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from hemlock.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id WUpN5UDfnT-L for ; Sat, 23 May 2020 11:01:08 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mail-io1-f43.google.com (mail-io1-f43.google.com [209.85.166.43]) by hemlock.osuosl.org (Postfix) with ESMTPS id 3D22C883D8 for ; Sat, 23 May 2020 11:01:08 +0000 (UTC) Received: by mail-io1-f43.google.com with SMTP id p20so836429iop.11 for ; Sat, 23 May 2020 04:01:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=kkJDzxEwjdjJq8Er5IQOLRFkL3F5i8YM/691/k3ZsQM=; b=fwPHG+68fgoG+bmUcLqG30YlT6h9Tg/x8DDj37+ouEg/ascwO/eVkf52Sk5xRV7CgE f09BMph1r88ccNAMUhNaaTWtp+XkV/eCSJLbdaDbhguIk/xQfB7uHEKXSik9Zibw7E/g 7mMXNNIzAyqgr7+2r4PW/AfgtWytqqoirIud8SVzfySOLUFFs4yfC7WCr4mVrufaB1ap 4mVEl8OFiRXcqU5QSzWIqJLJYTnhVrxElA3Ow0O6asdujL2iO76gUjXXEEdHGC5+9N/X mrsZrSbdhou/lRrVry/JTK8Tp3KUNUhooHXKq8apNNdO9Sos6AjlowZG7/y2ifL9hSz0 jJjQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=kkJDzxEwjdjJq8Er5IQOLRFkL3F5i8YM/691/k3ZsQM=; b=a5fKaYoz0t1wQAjLKOJTV1jMhq6XUzaOCMvP6y1b+T3vpCPlF8Yr2wEEIOtwYUs2qz jTFyt4biWj/A0PAbmMxsastVorX2kY5pFAgZzChlwMp6XNiPh8I9cWY1QeAw4Nv/ekep hnQgKqpvQErASLqQo70CJPseQF3XJk+V5to5tV5KL7z8az3pi8etyjcIiDkQtm1uGexY GPp/oo/hVRBvtgmwYZL9aV17LxnyCWcVRD/OpEnd9UIe30veO05Mvu23cWqORetVnMrF EXUqRx9mVC1ePcc5q69PVHQjDNXAZA1uiPBsvS/oQ62pYJA+Vp2rqhPXkuev+SusqQ8p GR6Q== X-Gm-Message-State: AOAM531ocFNI3A4W0cn56rheVaux9TVfBw2h6lClToCkTvONSqUvKwiw q46xx17Cso/Q5jTDPOxxTPq2kCSWgJgv0HyCGUd+oXwI680= X-Google-Smtp-Source: ABdhPJxeIbZSDblPqX1/MZYrXFEC5xqeyXs0vf48HMmXPQoCe8auo7x0jgclQ5qmdELLKGEK+o6RNrMzuTYEjNUd2yg= X-Received: by 2002:a5e:8411:: with SMTP id h17mr6696910ioj.1.1590231667275; Sat, 23 May 2020 04:01:07 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Karl Date: Sat, 23 May 2020 07:00:54 -0400 Message-ID: To: bitcoin-dev@lists.linuxfoundation.org Content-Type: multipart/alternative; boundary="000000000000a37c7205a64ea961" X-Mailman-Approved-At: Sat, 23 May 2020 13:03:48 +0000 Subject: [bitcoin-dev] hashcash-newhash X-BeenThere: bitcoin-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Bitcoin Protocol Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 23 May 2020 11:01:09 -0000 --000000000000a37c7205a64ea961 Content-Type: text/plain; charset="UTF-8" Hi, I'd like to revisit the discussion of the digest algorithm used in hashcash. I believe migrating to new hashing algorithms as a policy would significantly increase decentralization and hence security. I believe the impact on existing miners could be made pleasant by gradually moving the block reward from the previous hash to the next (such that both are accepted with different rewards). An appropriate rate could possibly be calculated from the difficulty. You could develop the frequency of introduction of new hashes such that once present-day ASICs are effectively obsolete anyway due to competition, new ones do not have time to develop. I'm interested in hearing thoughts and concerns. Karl Semich --000000000000a37c7205a64ea961 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi,

I'd like to revisit the discussion of the = digest algorithm used in hashcash.

I believe migrating to new hashing algorithms as a policy would significa= ntly increase decentralization and hence security.

I believe the impact on existing miners could be made ple= asant by gradually moving the block reward from the previous hash to the ne= xt (such that both are accepted with different rewards).=C2=A0 An appropria= te rate could possibly be calculated from the difficulty.

You could develop the frequency of introduction of= new hashes such that once present-day ASICs are effectively obsolete anywa= y due to competition, new ones do not have time to develop.

I'm interested in hearing thoughts and con= cerns.

Karl Semich
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