From owner-freebsd-security@FreeBSD.ORG Tue Aug 21 13:37:17 2012 Return-Path: Delivered-To: freebsd-security@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 6D7A810656D2 for ; Tue, 21 Aug 2012 13:37:17 +0000 (UTC) (envelope-from des@des.no) Received: from smtp.des.no (smtp.des.no [194.63.250.102]) by mx1.freebsd.org (Postfix) with ESMTP id 2FB048FC17 for ; Tue, 21 Aug 2012 13:37:17 +0000 (UTC) Received: from ds4.des.no (smtp.des.no [194.63.250.102]) by smtp.des.no (Postfix) with ESMTP id 3FF78672E for ; Tue, 21 Aug 2012 15:37:16 +0200 (CEST) Received: by ds4.des.no (Postfix, from userid 1001) id EB089894B; Tue, 21 Aug 2012 15:37:15 +0200 (CEST) From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= To: freebsd-security@freebsd.org Date: Tue, 21 Aug 2012 15:37:14 +0200 Message-ID: <86393gpdrp.fsf@ds4.des.no> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.4 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Subject: Hardware TOTP tokens X-BeenThere: freebsd-security@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Security issues \[members-only posting\]" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 21 Aug 2012 13:37:17 -0000 I'm looking for *rekeyable* TOTP (RFC 6238) tokens - preferably, but not necessarily OATH-certified. Does anyone know where I can find something like that? Alternatively, does anyone know of a reasonably-priced device that can be used to implement this? The requirements are very modest - a cheap microcontroller with a few kB of EEPROM and few kB of RAM, a reasonably precise real-time clock, and a six-digit seven-segment display, all in a package the size of a pack of gum. Note that we're not talking about large volumes - I need a few hundred, at most. DES --=20 Dag-Erling Sm=C3=B8rgrav - des@des.no