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| author | Andrew <onelineproof@gmail.com> | 2018-09-01 00:11:19 +0000 |
|---|---|---|
| committer | bitcoindev <bitcoindev@gnusha.org> | 2018-09-01 00:11:22 +0000 |
| commit | 3c75f70eefa0525e4e0bea405723228d78fd8f50 (patch) | |
| tree | 47920bfecbec2a6667401575c1ec3d6e8da0c017 | |
| parent | eff66f1b92ee197260e073e692d2a1ddd71827e3 (diff) | |
| download | pi-bitcoindev-3c75f70eefa0525e4e0bea405723228d78fd8f50.tar.gz pi-bitcoindev-3c75f70eefa0525e4e0bea405723228d78fd8f50.zip | |
[bitcoin-dev] Selfish Mining Prevention
| -rw-r--r-- | 8b/cac51c466cd6e4fbd866e5aac864d8c5f041e3 | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/8b/cac51c466cd6e4fbd866e5aac864d8c5f041e3 b/8b/cac51c466cd6e4fbd866e5aac864d8c5f041e3 new file mode 100644 index 000000000..754d24d15 --- /dev/null +++ b/8b/cac51c466cd6e4fbd866e5aac864d8c5f041e3 @@ -0,0 +1,100 @@ +Return-Path: <akaramaoun@gmail.com> +Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org + [172.17.192.35]) + by mail.linuxfoundation.org (Postfix) with ESMTPS id 644BACAF + for <bitcoin-dev@lists.linuxfoundation.org>; + Sat, 1 Sep 2018 00:11:22 +0000 (UTC) +X-Greylist: whitelisted by SQLgrey-1.7.6 +Received: from mail-wm0-f49.google.com (mail-wm0-f49.google.com [74.125.82.49]) + by smtp1.linuxfoundation.org (Postfix) with ESMTPS id D9BB56CE + for <bitcoin-dev@lists.linuxfoundation.org>; + Sat, 1 Sep 2018 00:11:21 +0000 (UTC) +Received: by mail-wm0-f49.google.com with SMTP id f21-v6so6600949wmc.5 + for <bitcoin-dev@lists.linuxfoundation.org>; + Fri, 31 Aug 2018 17:11:21 -0700 (PDT) +DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; + h=mime-version:sender:from:date:message-id:subject:to; + bh=p03f81AltqunY9Y22KM+b0KXPjwcaDmBTI7pD29lv7Y=; + b=RhrCU7iKed+6M0K9md1ELd+JYPeUvp56vPJOmGzVo8yYJJgsPluNJr6B0MLrhPjXzv + F4PxD2tQLQHVEa/E60mY4LRQd5looqkcNVObdMFo61RsQmFvC4ll57znWCR62FpfrSQs + prhUzxGxYmPJFlivoTlnAh/4xosDIXTFM/M3Kf267zZzyIgSj6dDbctnEitpR+xxvJJ+ + QxgBPIChfilKHC+yql2cJJowGkz9KAJGVZzy373Wk/FwbZrnO/gdY+Vsy28RnG/T0orB + VncbMuBW351EhsrWRlLv5iBh3bjk+FiY12wFVGomXcsH2VI9N3H3onx4tLY3B+ngsiUl + coJw== +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:from:date:message-id:subject + :to; bh=p03f81AltqunY9Y22KM+b0KXPjwcaDmBTI7pD29lv7Y=; + b=FPRLRX38Kk5JxC2Xt7mzb9/pnllGIfmb2SoPExK12JmjqTMTnhpOztbBbrlfw1J/l6 + DaLIO86wja2+tH+dgrkEjOKerKx2eACF6HeeA6FjEhTWHbb0+Em8OUTAhK7JEBYmPi57 + jxvD904YS6pq9+GN076d8feWOZSYhhWwTAqjEAKfIBGWkI9biUoZ6DJ+NprU5bsQ7UEv + POq9zihGljdU3WwGv4fT0eKaaU33PcFS/LHu0v/+GFqg7RVK8ILOQfKIWhX02FTWPFOa + lThRRr4ozVPfcl4CIgoYC7cy9CzTEMlCpw9uU9EfcmvkUnwxeJm7ePN3c0SNirygsAxc + rY7A== +X-Gm-Message-State: APzg51D3SQBZFIcqeE8TUGuuwQ2Ts/CTwCAS5KhXYN9wblXd3cXhDU14 + 2kBQl9yD/SdytLQaSyhgYJcTrBHGeJMBHCVqUGiHOw== +X-Google-Smtp-Source: ANB0VdbzEpL1N4KEfdEWQXiIBtXUVE7WkBHMNSLiuvCv9cQEvvENOJvmUYlJ2ihVZ9eHrqHQxFcHf3+swtnU/yQWjUE= +X-Received: by 2002:a1c:c345:: with SMTP id + t66-v6mr1077920wmf.100.1535760680221; + Fri, 31 Aug 2018 17:11:20 -0700 (PDT) +MIME-Version: 1.0 +Sender: akaramaoun@gmail.com +Received: by 2002:a1c:46c6:0:0:0:0:0 with HTTP; Fri, 31 Aug 2018 17:11:19 + -0700 (PDT) +From: Andrew <onelineproof@gmail.com> +Date: Sat, 1 Sep 2018 00:11:19 +0000 +X-Google-Sender-Auth: gyGd1hCpAtBtv8DvYirPzhbdWkg +Message-ID: <CAL8tG=k+kXHMbQdUXO3BXKv7fQwp5t2QuaQut7sPUtEYgwzn0A@mail.gmail.com> +To: Bitcoin Dev <bitcoin-dev@lists.linuxfoundation.org> +Content-Type: text/plain; charset="UTF-8" +X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, + DKIM_VALID, DKIM_VALID_AU, 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 +X-Mailman-Approved-At: Mon, 03 Sep 2018 23:25:52 +0000 +Subject: [bitcoin-dev] Selfish Mining Prevention +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: Sat, 01 Sep 2018 00:11:22 -0000 + +As I understand, selfish mining is an attack where miners collude to +mine at a lower hashrate then with all miners working independently. +What are the current strategies used to prevent this and what are the +future plans? + +One idea I have is to let the block reward get "modulated" according +to peak hashrate. Say p is the peak hashrate for 365 periods (1 year) +consisting of 144 blocks, h is the hashrate of the last 144 block (1 +day) period, and r is the base subsidy (12.5 BTC currently). You can +then make the max block reward 0.5 r (1 + h/p). So if hashrate is at +peak you get the full reward. Otherwise you get less, down to a min of +0.5 r. + +If miners were to collude to mine at a lower than peak hashrate, then +they may be able to do it profitably for 144 blocks, but after that, +the reward would get modulated and it wouldn't be so much in their +interest to continue mining at the lower hashrate. + +What flaws are there with this? I know it could be controversial due +to easier mining present for early miners, so maybe it would have to +be done in combination with a new more dynamic difficulty adjustment +algorithm. But I don't see how hashrate can continue rising +indefinitely, so a solution should be made for selfish mining. + +Also when subsidies stop and a fee market is needed, I guess a portion +of the fees can be withheld for later if hashrate is not at peak. + + +-- +PGP: B6AC 822C 451D 6304 6A28 49E9 7DB7 011C D53B 5647 + |