X2Go Bug report logs - #1036
add support for Mobile-OTP (MOTP) tokens

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Package: x2goclient; Maintainer for x2goclient is X2Go Developers <x2go-dev@lists.x2go.org>; Source for x2goclient is src:x2goclient.

Reported by: Tor Perkins <x2go23@noid.net>

Date: Mon, 16 May 2016 16:10:02 UTC

Severity: normal

Tags: patch, pending

Found in version 4.0.5.2

Fixed in version 4.0.5.2

Done: X2Go Release Manager <git-admin@x2go.org>

Bug is archived. No further changes may be made.

Full log


Message #5 received at submit@bugs.x2go.org (full text, mbox, reply):

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From: Tor Perkins <x2go23@noid.net>
Date: Mon, 16 May 2016 08:56:28 -0700
Subject: add support for Mobile-OTP (MOTP) tokens
To: submit@bugs.x2go.org
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Package: x2goclient
Version: 4.0.5.2
Tags: patch


Hello,

There is very nice OTP (One Time Password) algorithm called "Mobile-OTP"
(MOTP).  Here is a link for more information:

  http://motp.sourceforge.net/

This small patch extends x2goclient's OTP support to accommodate MOTP.

The patch adds a new string ("passcode:") to challenge_auth_code_prompts_[].
It also adds some comments that indicates the source of the various prompt
strings in that array.

MOTP is a very nice algorithm that is worthy of support for several reasons.

It is "free" and "open" and does not rely on a third party infrastructure to
operate.

It is a Time-based One Time Password (TOTP) algorithm (like OATH can be), with
a distinguishing advantage; it does 2FA ("2 Factor Authentication") innately.
That is because it requires a 4 digit PIN to be entered every time it is used.
The PIN is not stored in the "token" (i.e. smartphone), so a stolen phone
does an attacker no good...

It is well established and popular.  There are many versions of the "token"
available (much more than just IOS and Android apps).  It is supported by
several "backend" systems (like LinOTP).  Please refer to the "Links" section
on the project page for many more examples...

Thanks for your consideration!  X2Go rocks!

- Tor


[add-support-for-Mobile-OTP-MOTP-tokens.patch (text/x-patch, attachment)]

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