Re: [kitten] SPAKE Preauth

Nico Williams <nico@cryptonector.com> Fri, 01 May 2015 21:20 UTC

Return-Path: <nico@cryptonector.com>
X-Original-To: kitten@ietfa.amsl.com
Delivered-To: kitten@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id A5B621A009C for <kitten@ietfa.amsl.com>; Fri, 1 May 2015 14:20:05 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.666
X-Spam-Level:
X-Spam-Status: No, score=-1.666 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, IP_NOT_FRIENDLY=0.334, RCVD_IN_DNSWL_NONE=-0.0001] autolearn=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 bZL_Mn0CPj3p for <kitten@ietfa.amsl.com>; Fri, 1 May 2015 14:20:05 -0700 (PDT)
Received: from homiemail-a108.g.dreamhost.com (sub4.mail.dreamhost.com [69.163.253.135]) by ietfa.amsl.com (Postfix) with ESMTP id 0F3C31A0069 for <kitten@ietf.org>; Fri, 1 May 2015 14:20:05 -0700 (PDT)
Received: from homiemail-a108.g.dreamhost.com (localhost [127.0.0.1]) by homiemail-a108.g.dreamhost.com (Postfix) with ESMTP id D7E1B2005D90E; Fri, 1 May 2015 14:20:04 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=cryptonector.com; h=date :from:to:cc:subject:message-id:references:mime-version :content-type:in-reply-to; s=cryptonector.com; bh=SmdmvL1YedQn4+ UYQGI2X9BnpyI=; b=uQNjKdtJlSe3uWr1wVASlIIQjj1sPdwZMsT1gdLbl1cOwa 9a/WWbU+me97W76RRVyZo8u6QJcwasFXEMuzzOLOevahsuH7adGeKtwHCTpvRKYv zG70GtTqBVefjQs/LfJt/4FS1cMW/mG9rBBfRWvN7HFQ6/f+pCnV++dDBLAOw=
Received: from localhost (108-207-244-174.lightspeed.austtx.sbcglobal.net [108.207.244.174]) (Authenticated sender: nico@cryptonector.com) by homiemail-a108.g.dreamhost.com (Postfix) with ESMTPA id 8A6F32005D906; Fri, 1 May 2015 14:20:04 -0700 (PDT)
Date: Fri, 1 May 2015 16:20:04 -0500
From: Nico Williams <nico@cryptonector.com>
To: Nathaniel McCallum <npmccallum@redhat.com>
Message-ID: <20150501212003.GB10065@localhost>
References: <1430138754.2682.10.camel@redhat.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <1430138754.2682.10.camel@redhat.com>
User-Agent: Mutt/1.5.21 (2010-09-15)
Archived-At: <http://mailarchive.ietf.org/arch/msg/kitten/GuFvpcm2fKdewYKG4yOYPnxjlBo>
Cc: "kitten@ietf.org" <kitten@ietf.org>
Subject: Re: [kitten] SPAKE Preauth
X-BeenThere: kitten@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: Common Authentication Technologies - Next Generation <kitten.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/kitten>, <mailto:kitten-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/kitten/>
List-Post: <mailto:kitten@ietf.org>
List-Help: <mailto:kitten-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/kitten>, <mailto:kitten-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 01 May 2015 21:20:05 -0000

There should be a generic OTP 2nd factor type for user-input OTPs.

There should also be a generic OTP 2nd factor for plug-in/NFC-type OTPs.

For a generic OTP 2nd factor for user-input OTPs the 'data' in the
AS->client second pass should be a UTF8String, or just UTF-8.

It's important to define such generic OTP 2nd factors because they are
quite popular.

Nico
--