Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 79501F1C for ; Tue, 30 Jan 2018 10:53:42 +0000 (UTC) X-Greylist: whitelisted by SQLgrey-1.7.6 Received: from mail-it0-f49.google.com (mail-it0-f49.google.com [209.85.214.49]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 10A7A2F5 for ; Tue, 30 Jan 2018 10:53:41 +0000 (UTC) Received: by mail-it0-f49.google.com with SMTP id c16so67091itc.5 for ; Tue, 30 Jan 2018 02:53:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=aqefS8mWs6p9vjjBquBAQyMxz+sHr7Ae9ogpNvDHhew=; b=gjB0NNTaq8LjGkz7qZE07TTkU8jzkEHztULVhOiaU60Pr4nThSal2h+dRUUMlIPQSu GC9ubjdwy/V9EWi8qd3kpBcH2V4PHrTsMyo+7qncrtxaAr9p2PUBX8/qWbNqpXUJ8GMQ nCBKUIEAG/IhmsCZVOomaJ07GBubYl14qppD/dljU06/hrwuq28SqRTbStfBf6F/kBIG zB3zRliu1UnAR4qBfG7yflIfvKCaLKSrghpX9WY7h72aaCLFLQkjX1ZBk5b0uU0TKRTq JcCSjEFFnt4RiPBUfaBm4dm1xUlyIQmkb8796wNqEXYHK0Rml067rAAsy5A+Tr/oMJ7c OwXQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to; bh=aqefS8mWs6p9vjjBquBAQyMxz+sHr7Ae9ogpNvDHhew=; b=mzJOlKFU2Qq8MEUaOljZFumtOmuzwM0A4IeAE03sLNF5PEerP5CX7j9OqBxUvhTnze cqnOkYYGfEnRSQPZskI4Wiegp9QVPdDeIkY5u+vGFy6ZUHQaryzzn1IppaDfFs4m8NXP 3pZYGYa33k2N81CbKo7/1zLOdviWxc/ifHNGYuod3uTpQfI4cQ/dplJN7phBo28U0TvH qOWBMM+RYOIbJoyDxHU+Ffd+fipVqWzRPTwguFf7UWhks5BGJn8OJbLhYzUkZRH9Fc1g yqgo/xO9J9vscd+Lsc3NWzfk54/AQldNfok62MNBQVkZ2pUn7vJZXeSlZV2EvACaKWr3 gYrw== X-Gm-Message-State: AKwxyteGfZbQT9dN1NPG0RfrZbqE/rlzkHiUHP33jGA57+rntWLIv8Hy 8Xu2gnMJl+91qUX9MECQvZxmtM8gboC6Q3B+xvk= X-Google-Smtp-Source: AH8x224UsWXZCrhXgii+/WvTuwZAjkz1W3/3yYYAiXSAdUW8yNR7wAENqRTBGulo2BzXargDpvo8GrsTgdMXaUFkBM8= X-Received: by 10.36.112.15 with SMTP id f15mr29993562itc.20.1517309621468; Tue, 30 Jan 2018 02:53:41 -0800 (PST) MIME-Version: 1.0 Received: by 10.2.77.141 with HTTP; Tue, 30 Jan 2018 02:53:41 -0800 (PST) In-Reply-To: References: From: Neiman Date: Tue, 30 Jan 2018 11:53:41 +0100 Message-ID: To: Gregory Maxwell , Bitcoin Protocol Discussion Content-Type: multipart/alternative; boundary="001a11441d9200850d0563fc2d04" X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, FREEMAIL_FROM, HTML_MESSAGE, 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: Tue, 30 Jan 2018 15:24:00 +0000 Subject: Re: [bitcoin-dev] How accurate are the Bitcoin timestamps? 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: Tue, 30 Jan 2018 10:53:42 -0000 --001a11441d9200850d0563fc2d04 Content-Type: text/plain; charset="UTF-8" On Mon, Jan 29, 2018 at 10:54 PM, Gregory Maxwell via bitcoin-dev < bitcoin-dev@lists.linuxfoundation.org> wrote: > On Mon, Jan 29, 2018 at 9:40 PM, Tier Nolan via bitcoin-dev > wrote: > > if there were tighter time requirements in the protocol > miners would address them by running NTP which as an _astounding_ lack > of security in terms of how it is commonly deployed. > Could you say a few more words about this lack of security? Or share a link if you have one. I know very little about NTPs. > _______________________________________________ > bitcoin-dev mailing list > bitcoin-dev@lists.linuxfoundation.org > https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev > --001a11441d9200850d0563fc2d04 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable


On Mon, Jan 29, 2018 at 10:54 PM, Gregory Maxwell via bitcoin-dev <bitcoin-dev@lists.linuxfoundation.org> wrote= :
On Mon, Jan 29, 2018 a= t 9:40 PM, Tier Nolan via bitcoin-dev
<bitcoin-dev@li= sts.linuxfoundation.org> wrote:

=C2=A0if there we= re tighter time requirements in the protocol
miners would address them by running NTP which as an _astounding_ lack
of security in terms of how it is commonly deployed.=C2=A0

Could you say a few more words about this lack of secu= rity? Or share a link if you have one. I know very little about NTPs.
=C2=A0
______________________________= _________________
bitcoin-dev mailing list
bitcoin-dev@lists.= linuxfoundation.org
https://lists.linuxfoundation.org= /mailman/listinfo/bitcoin-dev

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