IETF Logo Mail Archive

Re: [CFRG] Attack on a Real World SPAKE2 Implementation

Dan Harkins <dharkins@lounge.org> Fri, 07 May 2021 20:18 UTC

Return-Path: <dharkins@lounge.org>
X-Original-To: cfrg@ietfa.amsl.com
Delivered-To: cfrg@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id F2E013A317B for <cfrg@ietfa.amsl.com>; Fri, 7 May 2021 13:18:59 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.901
X-Spam-Level:
X-Spam-Status: No, score=-1.901 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, NICE_REPLY_A=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id BPkmMm6ouTFB for <cfrg@ietfa.amsl.com>; Fri, 7 May 2021 13:18:55 -0700 (PDT)
Received: from www.goatley.com (www.goatley.com [198.137.202.94]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id B82E93A315D for <cfrg@irtf.org>; Fri, 7 May 2021 13:18:55 -0700 (PDT)
Received: from trixy.bergandi.net (cpe-76-176-14-122.san.res.rr.com [76.176.14.122]) by wwwlocal.goatley.com (PMDF V6.8 #2433) with ESMTP id <0QSR0EF3H73JTN@wwwlocal.goatley.com> for cfrg@irtf.org; Fri, 07 May 2021 15:18:55 -0500 (CDT)
Received: from blockhead.local ([69.12.173.8]) by trixy.bergandi.net (PMDF V6.7-x01 #2433) with ESMTPSA id <0QSR00C1G6ZJZW@trixy.bergandi.net> for cfrg@irtf.org; Fri, 07 May 2021 13:16:32 -0700 (PDT)
Received: from 69-12-173-8.static.dsltransport.net ([69.12.173.8] EXTERNAL) (EHLO blockhead.local) with TLS/SSL by trixy.bergandi.net ([10.0.42.18]) (PreciseMail V3.3); Fri, 07 May 2021 13:16:32 -0700
Date: Fri, 07 May 2021 13:18:53 -0700
From: Dan Harkins <dharkins@lounge.org>
In-reply-to: <736794875.32663.1620402341358@email.ionos.com>
To: steve@tobtu.com, Ruben Gonzalez <in+lists@ruben-gonzalez.de>, cfrg@irtf.org
Cc: rixxc@redrocket.club
Message-id: <024d23db-0c5b-e4aa-b0ca-c7dbac60002d@lounge.org>
MIME-version: 1.0
Content-type: text/plain; charset="utf-8"; format="flowed"
Content-language: en-US
Content-transfer-encoding: 8bit
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.7.1
X-PMAS-SPF: SPF check skipped for authenticated session (recv=trixy.bergandi.net, send-ip=69.12.173.8)
X-PMAS-External-Auth: 69-12-173-8.static.dsltransport.net [69.12.173.8] (EHLO blockhead.local)
References: <736794875.32663.1620402341358@email.ionos.com>
X-PMAS-Software: PreciseMail V3.3 [210506] (trixy.bergandi.net)
X-PMAS-Allowed: system rule (rule allow header:X-PMAS-External noexists)
Archived-At: <https://mailarchive.ietf.org/arch/msg/cfrg/k-LngORKh_avOUBDRAe-4eG50bw>
Subject: Re: [CFRG] Attack on a Real World SPAKE2 Implementation
X-BeenThere: cfrg@irtf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Crypto Forum Research Group <cfrg.irtf.org>
List-Unsubscribe: <https://www.irtf.org/mailman/options/cfrg>, <mailto:cfrg-request@irtf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/cfrg/>
List-Post: <mailto:cfrg@irtf.org>
List-Help: <mailto:cfrg-request@irtf.org?subject=help>
List-Subscribe: <https://www.irtf.org/mailman/listinfo/cfrg>, <mailto:cfrg-request@irtf.org?subject=subscribe>
X-List-Received-Date: Fri, 07 May 2021 20:19:05 -0000

On 5/7/21 8:45 AM, steve@tobtu.com wrote:
> 5 racks of computers breaks a PAKE exchange on average every 4 days.

   Can you expand on this? The adversarial advantage of a PAKE is supposed
to be related to interaction and not computation. What PAKE? And how
do 5 racks take 4 days to break it?

   regards,

   Dan.

-- 
"The object of life is not to be on the side of the majority, but to
escape finding oneself in the ranks of the insane." -- Marcus Aurelius

v2.29.0 | Report a Bug | By Email | System Status