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Groups > linux.debian.user > #268428

Re: Root password strength

From Jeffrey Walton <noloader@gmail.com>
Newsgroups linux.debian.user
Subject Re: Root password strength
Date 2024-03-20 14:30 +0100
Message-ID <Ik4aZ-psP-5@gated-at.bofh.it> (permalink)
References (1 earlier) <IjJgd-bzk-13@gated-at.bofh.it> <IjOfT-fl7-5@gated-at.bofh.it> <IjWQ9-kZv-1@gated-at.bofh.it> <IjYRX-mcd-5@gated-at.bofh.it> <Ik1Zw-oei-9@gated-at.bofh.it>
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On Wed, Mar 20, 2024 at 7:03 AM Michael Kjörling <2695bd53d63c@ewoof.net> wrote:
>
> On 20 Mar 2024 15:46 +0800, from jeremy.ardley@gmail.com (jeremy ardley):
> > Regarding certificates, I issue VPN certificates to be installed on each
> > remote device. I don't use public key.
>
> What exactly is this "certificate" that you speak of? In typical
> usage, it means a public key plus some surrounding metadata, but you
> say that you "don't use public key".
>
>
> > For ssh use I issue secret keys to each user and maintain matching public
> > keys in LDAP servers.  SSHD servers can get the public keys in real time by
> > using the AuthorizedKeysCommand. If a secret key is compromised I simply
> > remove the matching public key.
> >
> > [users are locked out from uploading their public key using ssh-copy-id]
>
> So the private keys aren't private, thereby invalidating a lot of
> assumptions inherent in public key cryptography.
>
> Also, are you saying that you do not let users rotate their keys
> themselves; and if so, why on Earth not?

Key continuity has turned out to be a better security property than
key rotation. It is wise to avoid gratuitous rotation schemes.

Jeff

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Thread

Root password strength Jan Krapivin <daydreamer199005@gmail.com> - 2024-03-19 15:50 +0100
  Re: Root password strength Jan Krapivin <daydreamer199005@gmail.com> - 2024-03-19 16:00 +0100
  Re: Root password strength Dan Ritter <dsr@randomstring.org> - 2024-03-19 16:10 +0100
    Re: Root password strength debian-user@howorth.org.uk - 2024-03-19 16:50 +0100
      Re: Root password strength Greg Wooledge <greg@wooledge.org> - 2024-03-19 21:20 +0100
  Re: Root password strength Greg Wooledge <greg@wooledge.org> - 2024-03-19 16:10 +0100
    Re: Root password strength jeremy ardley <jeremy.ardley@gmail.com> - 2024-03-19 21:30 +0100
      Re: Root password strength <tomas@tuxteam.de> - 2024-03-20 06:40 +0100
        Re: Root password strength Jeffrey Walton <noloader@gmail.com> - 2024-03-20 07:10 +0100
          Re: Root password strength tomas@tuxteam.de - 2024-03-20 08:40 +0100
        Re: Root password strength jeremy ardley <jeremy.ardley@gmail.com> - 2024-03-20 08:50 +0100
          Re: Root password strength Michael Kjörling <2695bd53d63c@ewoof.net> - 2024-03-20 12:10 +0100
            Re: Root password strength <tomas@tuxteam.de> - 2024-03-20 12:20 +0100
              Re: Root password strength Michael Kjörling <2695bd53d63c@ewoof.net> - 2024-03-20 13:20 +0100
            Re: Root password strength jeremy ardley <jeremy.ardley@gmail.com> - 2024-03-20 12:30 +0100
              Re: Root password strength Michael Kjörling <2695bd53d63c@ewoof.net> - 2024-03-20 13:10 +0100
              Re: Root password strength Dan Ritter <dsr@randomstring.org> - 2024-03-20 13:40 +0100
            Re: Root password strength Jeffrey Walton <noloader@gmail.com> - 2024-03-20 14:30 +0100
              Re: Root password strength <tomas@tuxteam.de> - 2024-03-20 14:50 +0100
  Re: Root password strength Marco Moock <mm@dorfdsl.de> - 2024-03-19 16:40 +0100
  Re: Root password strength Michael Kjörling <2695bd53d63c@ewoof.net> - 2024-03-19 20:40 +0100
    Re: Root password strength debian-user@howorth.org.uk - 2024-03-19 22:00 +0100
  Re: Root password strength Pierre-Elliott Bécue <peb@debian.org> - 2024-03-20 16:00 +0100
    Re: Root password strength Michael Kjörling <2695bd53d63c@ewoof.net> - 2024-03-20 16:20 +0100
      Re: Root password strength Jan Krapivin <daydreamer199005@gmail.com> - 2024-03-20 16:30 +0100
        Re: Root password strength John Hasler <john@sugarbit.com> - 2024-03-20 17:10 +0100
          Re: Root password strength Pierre-Elliott Bécue <peb@debian.org> - 2024-03-20 17:20 +0100
            Re: Root password strength Pierre-Elliott Bécue <peb@debian.org> - 2024-03-20 18:50 +0100
              Re: Root password strength Michael Kjörling <2695bd53d63c@ewoof.net> - 2024-03-20 19:10 +0100
                Re: Root password strength Pierre-Elliott Bécue <peb@debian.org> - 2024-03-20 19:30 +0100
              Re: Root password strength Pierre-Elliott Bécue <peb@debian.org> - 2024-03-20 19:50 +0100
              Re: Root password strength Lee <ler762@gmail.com> - 2024-03-20 20:50 +0100
                Re: Root password strength Pierre-Elliott Bécue <peb@debian.org> - 2024-03-20 21:00 +0100
                Re: Root password strength Lee <ler762@gmail.com> - 2024-03-20 21:30 +0100
          Re: Root password strength <tomas@tuxteam.de> - 2024-03-20 18:50 +0100
            Re: Root password strength John Hasler <john@sugarbit.com> - 2024-03-20 19:50 +0100
        Re: Root password strength "Alexander V. Makartsev" <avbetev@gmail.com> - 2024-03-21 20:40 +0100
          Re: Root password strength Jan Krapivin <daydreamer199005@gmail.com> - 2024-03-22 11:00 +0100
            Re: Root password strength Joe <joe@jretrading.com> - 2024-03-22 12:00 +0100
            Re: Root password strength "Alexander V. Makartsev" <avbetev@gmail.com> - 2024-03-22 13:30 +0100
              Re: Root password strength Michael Kjörling <2695bd53d63c@ewoof.net> - 2024-03-23 10:50 +0100
            Re: Root password strength Lee <ler762@gmail.com> - 2024-03-23 01:10 +0100
              Re: Root password strength Michael Kjörling <2695bd53d63c@ewoof.net> - 2024-03-23 11:30 +0100
      Re: Root password strength Pierre-Elliott Bécue <peb@debian.org> - 2024-03-20 16:50 +0100
    Re: Root password strength John Hasler <john@sugarbit.com> - 2024-03-20 17:00 +0100
      Re: Root password strength Pierre-Elliott Bécue <peb@debian.org> - 2024-03-20 17:10 +0100
        Re: Root password strength Jeffrey Walton <noloader@gmail.com> - 2024-03-20 17:30 +0100
          Re: Root password strength Max Nikulin <manikulin@gmail.com> - 2024-03-20 17:50 +0100
          Re: Root password strength Pierre-Elliott Bécue <peb@debian.org> - 2024-03-20 18:00 +0100
            Re: Root password strength Jeffrey Walton <noloader@gmail.com> - 2024-03-20 18:40 +0100
              Re: Root password strength Pierre-Elliott Bécue <peb@debian.org> - 2024-03-20 18:50 +0100
                Re: Root password strength Jeffrey Walton <noloader@gmail.com> - 2024-03-20 19:20 +0100
                Re: Root password strength Pierre-Elliott Bécue <peb@debian.org> - 2024-03-20 19:40 +0100
                Re: Root password strength Jeffrey Walton <noloader@gmail.com> - 2024-03-20 21:20 +0100
                Re: Root password strength Curt <curty@free.fr> - 2024-03-21 17:50 +0100
                Re: Root password strength John Hasler <john@sugarbit.com> - 2024-03-20 19:40 +0100
                Re: Root password strength Pierre-Elliott Bécue <peb@debian.org> - 2024-03-20 19:50 +0100
        Re: Root password strength John Hasler <john@sugarbit.com> - 2024-03-20 17:30 +0100
          Re: Root password strength Pierre-Elliott Bécue <peb@debian.org> - 2024-03-20 18:00 +0100
        Re: Root password strength Michael Kjörling <2695bd53d63c@ewoof.net> - 2024-03-20 19:20 +0100
      Re: Root password strength Michael Kjörling <2695bd53d63c@ewoof.net> - 2024-03-20 17:10 +0100

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