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Re: wanted: educate us please on key dongles

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On Tue, 29 Aug 2017, Marc Haber wrote:
> - Which key goes on the paper slab that everybody uses to collect
>   signatures? The certification only master key?

The main key fingerprint.  Which happens to be the certification master
key in gnupg, yes.

> - For which (set of) keys should I have revocation certificates on file?

You need to have a revocation certificate for the master key.  When you
revoke it, you revoke every subkey as well.  Also, as long as you keep
control of the master key, you can revoke any subkey.

It goes without saying that losing control of your revocation
certificate can open you to a DoS attack, so please keep it protected
somehow, but NOT in a way you might find yourself unable to use it.

> - What key goes into the Debian keyring? A signing (only?) subkey of the
>   certification master key? Is it recommended to have this key
>   "available", for example in a Gnuk on my keychain next to the key to
>   my home?

The **public** portion of *every* key (master and all subkeys) go into
the public keyrings and also in the Debian keyring.  gnupg will handle
this automatically if you use "--export" (do *NOT* confuse with a
different export option that is for private keys).

In the "normal use" smartcard, you store the *private* portion of the
*subkeys* you need.

In a offline digital vault of some sort (encrypted removable storage, or
secure smartcard, etc), you need to keep everything including the
private portion of the master (main) key.

In .gnupg you might have to store a "crippled" version of the main key,
which has its private data zeroed, for it to work.  This is where people
screw up and lose the key, or fail to protect it, so it should be a
topic of its own.

> - Which (set of) keys goes to the key servers?

Only the public keys (all of them: master and subkeys).  gnupg will
handle this automatically if you use --send-key.

-- 
  Henrique Holschuh

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wanted: educate us please on key dongles Adam Borowski <kilobyte@angband.pl> - 2017-08-02 22:20 +0200
  Re: wanted: educate us please on key dongles Zlatan Todoric <zlatan@riseup.net> - 2017-08-02 22:40 +0200
  Re: wanted: educate us please on key dongles Jonas Smedegaard <dr@jones.dk> - 2017-08-02 22:50 +0200
  Re: wanted: educate us please on key dongles Wouter Verhelst <w@uter.be> - 2017-08-03 11:30 +0200
  Re: wanted: educate us please on key dongles Wouter Verhelst <wouter@debian.org> - 2017-08-03 11:30 +0200
  Re: wanted: educate us please on key dongles Daniel Pocock <daniel@pocock.pro> - 2017-08-03 13:40 +0200
  Re: wanted: educate us please on key dongles Víctor Cuadrado Juan <me@viccuad.me> - 2017-08-03 19:10 +0200
  Re: wanted: educate us please on key dongles Jonathan McDowell <noodles@earth.li> - 2017-08-11 15:20 +0200
    Re: wanted: educate us please on key dongles Christian Seiler <christian@iwakd.de> - 2017-08-11 17:30 +0200
      Re: wanted: educate us please on key dongles Sean Whitton <spwhitton@spwhitton.name> - 2017-08-11 19:30 +0200
        Re: wanted: educate us please on key dongles Christian Seiler <christian@iwakd.de> - 2017-08-11 19:50 +0200
    Re: wanted: educate us please on key dongles Sean Whitton <spwhitton@spwhitton.name> - 2017-08-11 19:10 +0200
      Re: wanted: educate us please on key dongles Jonathan McDowell <noodles@earth.li> - 2017-08-11 19:30 +0200
        Re: wanted: educate us please on key dongles Henrique de Moraes Holschuh <hmh@debian.org> - 2017-08-11 22:00 +0200
          Re: wanted: educate us please on key dongles Jonathan McDowell <noodles@earth.li> - 2017-08-12 00:00 +0200
    Re: wanted: educate us please on key dongles Marc Haber <mh+debian-project@zugschlus.de> - 2017-08-29 19:40 +0200
      Re: wanted: educate us please on key dongles Christian Seiler <christian@iwakd.de> - 2017-08-29 20:00 +0200
      Re: wanted: educate us please on key dongles Jonathan McDowell <noodles@earth.li> - 2017-08-30 11:10 +0200
        Re: wanted: educate us please on key dongles Marc Haber <mh+debian-project@zugschlus.de> - 2017-08-30 12:20 +0200
          Re: wanted: educate us please on key dongles Adam Borowski <kilobyte@angband.pl> - 2017-08-30 12:50 +0200
            Re: wanted: educate us please on key dongles Marc Haber <mh+debian-project@zugschlus.de> - 2017-08-30 13:00 +0200
              Re: wanted: educate us please on key dongles Ian Jackson <ijackson@chiark.greenend.org.uk> - 2017-08-30 13:20 +0200
                Re: wanted: educate us please on key dongles Marc Haber <mh+debian-project@zugschlus.de> - 2017-08-30 15:00 +0200
              Re: wanted: educate us please on key dongles Marc Haber <mh+debian-project@zugschlus.de> - 2017-08-30 13:20 +0200
              Re: wanted: educate us please on key dongles Jonathan McDowell <noodles@earth.li> - 2017-08-30 13:20 +0200
              Re: wanted: educate us please on key dongles Ian Campbell <ijc@debian.org> - 2017-08-30 17:20 +0200
        Re: wanted: educate us please on key dongles Alexander Zangerl <az+debmnt@snafu.priv.at> - 2017-08-31 00:40 +0200
    Re: wanted: educate us please on key dongles Marc Haber <mh+debian-project@zugschlus.de> - 2017-08-29 20:10 +0200
      Re: wanted: educate us please on key dongles Henrique de Moraes Holschuh <hmh@debian.org> - 2017-08-29 21:10 +0200
        Re: wanted: educate us please on key dongles Marc Haber <mh+debian-project@zugschlus.de> - 2017-08-30 09:10 +0200
          Re: wanted: educate us please on key dongles Christian Seiler <christian@iwakd.de> - 2017-08-30 14:00 +0200
            Re: wanted: educate us please on key dongles Marc Haber <mh+debian-project@zugschlus.de> - 2017-08-30 14:50 +0200
              Re: wanted: educate us please on key dongles Christian Seiler <christian@iwakd.de> - 2017-08-30 17:20 +0200
            Re: wanted: educate us please on key dongles Christian Seiler <christian@iwakd.de> - 2017-09-22 22:10 +0200
          Re: wanted: educate us please on key dongles Teemu Likonen <tlikonen@iki.fi> - 2017-08-30 14:10 +0200
          Re: wanted: educate us please on key dongles Sean Whitton <spwhitton@spwhitton.name> - 2017-08-31 07:10 +0200
  Re: wanted: ... key dongles GNUK is available Osamu Aoki <osamu@debian.org> - 2017-08-16 17:00 +0200
    Re: wanted: ... key dongles GNUK is available Marc Haber <mh+debian-project@zugschlus.de> - 2017-08-29 19:50 +0200
  [summary] Re: wanted: educate us please on key dongles Charles Plessy <plessy@debian.org> - 2017-09-08 15:20 +0200
    Re: [summary] Re: wanted: educate us please on key dongles Sotirios Vrachas <sotirios@vrachas.com> - 2017-09-09 22:20 +0200
      Re: [summary] Re: wanted: educate us please on key dongles Charles Plessy <plessy@debian.org> - 2017-09-10 06:00 +0200

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