GNU bug report logs - #55055
[PATCH] gnu: wireguard: Add support for PresharedKey

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Package: guix-patches; Reported by: Paul Alesius <paul@HIDDEN>; Keywords: patch; dated Thu, 21 Apr 2022 13:28:02 UTC; Maintainer for guix-patches is guix-patches@HIDDEN.

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Subject: Re: [bug#55055] [PATCH] gnu: wireguard: Add support for PresharedKey
From: Maxime Devos <maximedevos@HIDDEN>
To: Paul Alesius <paul@HIDDEN>, 55055 <at> debbugs.gnu.org
Date: Thu, 21 Apr 2022 16:25:53 +0200
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Paul Alesius schreef op do 21-04-2022 om 15:26 [+0200]:
> +  (preshared-key     wireguard-peer-preshared-key
> +                     (default #f))   ;string

This should be documented in the documentation, otherwise it will be
difficult to discover.  Also, #f is not a string, did you mean
=E2=80=98;#f|string=E2=80=99?

Also, a limitation: the preshared key will end up in the store, and
hence be world-readable.  So other users on the same system (other
people or compromised system daemons) could now determine the preshared
key.

Questions:

  * Could the security limitation be documented?

  * What security impact does a leaked secret key have?

  * Does wireguard has some inclusion mechanism, such that the
    wireguard configuration can =E2=80=98include=E2=80=99 some file outside=
 the store?

  * WDYT of verifying that the preshared key looks =E2=80=98reasonable=E2=
=80=99
    (I guess only a-z0-9 characters, no spaces or newlines, not a
    bytevector ...)

    As-is, if I do (preshared-keys (string->utf8 "oops I thought this
    needs to be bytevector)) then "guix system reconfigure" doesn't
    give a nice error message, it will just silently produce a broken
    configuration file.

Greetings,
Maxime.

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Information forwarded to guix-patches@HIDDEN:
bug#55055; Package guix-patches. Full text available.

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Subject: [PATCH] gnu: wireguard: Add support for PresharedKey
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The WireGuard configuration supports a PresharedKey attribute for
additional security. This patch adds support for configuring a PresharedKey
attribute.

Tested, working.

With regards,
- Paul

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<div dir=3D"ltr"><div>The WireGuard configuration supports a PresharedKey a=
ttribute for additional security. This patch adds support for configuring a=
 PresharedKey attribute.<br></div><div><br></div><div>Tested, working.</div=
><div><br></div><div>With regards,</div><div>- Paul<br></div></div>

--000000000000f03c8405dd2a10d5--

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Acknowledgement sent to Paul Alesius <paul@HIDDEN>:
New bug report received and forwarded. Copy sent to guix-patches@HIDDEN. Full text available.
Report forwarded to guix-patches@HIDDEN:
bug#55055; Package guix-patches. Full text available.
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