4 ms·

Is hmac-sha1 and umac-64 still enabled by default?

• throw0101a 3mo ago
  Yes: * https://man.openbsd.org/ssh_config.5#MACs https://man.openbsd.org/ssh_config.5#MACs * https://man.openbsd.org/sshd_config.5#MACs https://man.openbsd.org/sshd_config.5#MACs ETM, encrypt-than-mac, variants are at the front of the preference list. * https://en.wikipedia.org/wiki/UMAC_(cryptography) https://en.wikipedia.org/wiki/UMAC_(cryptography)
  • lousken 3mo ago
    That sucks, that means they will still appear in audits, they should remove them from the default.
    • PunchyHamster 3mo ago
      OpenSSH thankfully cares little for corporate security theathre But I can sympathise, our stuff got flagged in audit because we foolishly assumed that some requirement was checked by just having OpenSSH "new enough",but it turned out that RedHat for that RHEL version patched back some old considered insecure primitives to keep their customers happy...
      • ok123456 3mo ago
        aka FIPS.
      • lousken 3mo ago
        It would be nice to have defaults that are following regulations because it sucks to have and maintain explicit list. If it would be a simple toggle - secureciphersonly=yes sure, but listing them is just creating tech debt.
    • deleted 3mo ago
      [deleted]