Uebung:GPG und Web of Trust

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• Ownertrust vs. Trust
  • how much you trust the owner to correctly sign another person's key
• Validity
• trust is computed at the time it is needed. This is one of the reasons for the trustdb which holds a list of valid key signatures. If you are not running in batch mode you will be asked to assign a trust parameter (ownertrust) to a key.

gpg --list-keys --with-colons 

  o = Unknown (this key is new to the system)
  e = The key has expired
  q = Undefined (no value assigned)
  n = Don't trust this key at all
  m = There is marginal trust in this key
  f = The key is full trusted
  u = The key is ultimately trusted; this is only used
      for keys for which the secret key is also available.
  r = The key has been revoked
  d = The key has been disabled

gpg --export-ownertrust