Received: from sog-mx-1.v43.ch3.sourceforge.com ([172.29.43.191] helo=mx.sourceforge.net) by sfs-ml-1.v29.ch3.sourceforge.com with esmtp (Exim 4.76) (envelope-from ) id 1VcTLM-000653-BF for bitcoin-development@lists.sourceforge.net; Sat, 02 Nov 2013 05:01:52 +0000 Received-SPF: pass (sog-mx-1.v43.ch3.sourceforge.com: domain of gmx.com designates 74.208.4.200 as permitted sender) client-ip=74.208.4.200; envelope-from=bitcoingrant@gmx.com; helo=mout.gmx.net; Received: from mout.gmx.net ([74.208.4.200]) by sog-mx-1.v43.ch3.sourceforge.com with esmtps (TLSv1:AES128-SHA:128) (Exim 4.76) id 1VcTLK-0003Tj-Qx for bitcoin-development@lists.sourceforge.net; Sat, 02 Nov 2013 05:01:52 +0000 Received: from mailout-us.gmx.com ([172.19.198.48]) by mrigmx.server.lan (mrigmxus001) with ESMTP (Nemesis) id 0Lfjxe-1W18pn0w7W-00pJaz for ; Sat, 02 Nov 2013 06:01:45 +0100 Received: (qmail 20016 invoked by uid 0); 2 Nov 2013 05:01:45 -0000 Received: from 98.116.3.138 by rms-us017 with HTTP Content-Type: multipart/alternative; boundary="========GMXBoundary5851383368504828585" Date: Sat, 02 Nov 2013 01:01:43 -0400 From: bitcoingrant@gmx.com Message-ID: <20131102050144.5850@gmx.com> MIME-Version: 1.0 To: bitcoin-development@lists.sourceforge.net X-Flags: 0001 X-Mailer: GMX.com Web Mailer x-registered: 0 X-GMX-UID: b+IGci1j3zOl2JpasXwhmyN+IGRvb4BQ X-Spam-Score: -0.5 (/) X-Spam-Report: Spam Filtering performed by mx.sourceforge.net. See http://spamassassin.org/tag/ for more details. -1.5 SPF_CHECK_PASS SPF reports sender host as permitted sender for sender-domain 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (bitcoingrant[at]gmx.com) -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [74.208.4.200 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 URIBL_BLOCKED ADMINISTRATOR NOTICE: The query to URIBL was blocked. See http://wiki.apache.org/spamassassin/DnsBlocklists#dnsbl-block for more information. [URIs: bitcoingrant.org] 1.0 HTML_MESSAGE BODY: HTML included in message X-Headers-End: 1VcTLK-0003Tj-Qx Subject: [Bitcoin-development] Message Signing based authentication X-BeenThere: bitcoin-development@lists.sourceforge.net X-Mailman-Version: 2.1.9 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 02 Nov 2013 05:01:52 -0000 --========GMXBoundary5851383368504828585 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Passwords are inefficient by design: frequently we hear news from Sony, Square Enix, Adobe, and various others about passwords being compromised, databases being copied and stolen. This story remains true in the Bitcoin space. In light of the recent Bitcointalk forum breach echoes an increasing need for passwords to become a thing of the past. In celebration of the 5 year anniversary of the Bitcoin whitepaper, we are delighted to introduce the Message Signing based authentication method. In brief, the authentication work as follows: Server provides a token for the client to sign. client passes the signed message and the bitcoin address back to the server. server validates the message and honors the alias (optional) and bitcoin address as identification. http://forums.bitcoingrant.org/ Above is a proof of concept forum that utilize this authentication method. Following Kerckhoffs's principle, this forum only stores the signed message and bitcoin address the users provide the first time they use the site, both are public information. In addition, there is no database, everything is simply an RSS feed. For the sake of usability we have included a redis for the sessions, at the cost of additional exposure to potential risks: users no longer need to sign a token every time they wish to post. All source code will be available on github in the next few days. We welcome any feedback or suggestions. --========GMXBoundary5851383368504828585 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable

Passwords ar= e inefficient by design: frequently we hear news from Sony, Square Enix, Ad= obe, and various others about passwords being compromised, databases being = copied and stolen. This story remains true in the Bitcoin space. In light o= f the recent Bitcointalk forum breach echoes an increasing need for passwor= ds to become a thing of the past.

=C2=A0

In celebration of the 5 year anniversary of the Bitcoin whitepa= per, we are delighted to introduce the Message Signing based authentication= method.

=C2=A0

In brief, th= e authentication work as follows:

=C2=A0

Server provides a token for the client to sign.

client pass= es the signed message and the bitcoin address back to the server.

serve= r validates the message and honors the alias (optional) and bitcoin address= as identification.

=C2=A0=

ht= tp://forums.bitcoingrant.org/

=C2=A0

Above is a proof of concept forum that utilize this authentication = method. Following Kerckhoffs's principle, this forum only stores the signed= message and bitcoin address the users provide the first time they use the = site, both are public information. In addition, there is no database, every= thing is simply an RSS feed. For the sake of usability we have included a r= edis for the sessions, at the cost of additional exposure to potential risk= s: users no longer need to sign a token every time they wish to post.

=C2=A0

All source code will be av= ailable on github in the next few days.

=C2=A0

We welcome any feedback or suggestions.


=C2=A0

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