====== raise trust level ======

To raise own key trust level:

<code bash>
$ gpg --edit-key user@example.com

Secret key is available.

sec  rsa3072/XXXXXXXXXXX
     created: XXXX-XX-XX  expires: XXXX-XX-XX  usage: SC  
     trust: unknown       validity: unknown
ssb  rsa3072/XXXXXXX
     created: XXXX-XX-XX  expires: XXXX-XX-XX  usage: E   
[ unknown] (1). User <user@example.com>

</code>

<code bash>
gpg> trust
</code>

<code>
sec  rsa3072/XXXXXXXXXXX
     created: XXXX-XX-XX  expires: XXXX-XX-XX  usage: SC  
     trust: unknown       validity: unknown
ssb  rsa3072/XXXXXXX
     created: XXXX-XX-XX  expires: XXXX-XX-XX  usage: E   
[ unknown] (1). User <user@example.com>

Please decide how far you trust this user to correctly verify other users' keys
(by looking at passports, checking fingerprints from different sources, etc.)

  1 = I don't know or won't say
  2 = I do NOT trust
  3 = I trust marginally
  4 = I trust fully
  5 = I trust ultimately
  m = back to the main menu
</code>

<code>
Your decision? 5
Do you really want to set this key to ultimate trust? (y/N) y
</code>

<code>
sec  rsa3072/XXXXXXXXXXX
     created: XXXX-XX-XX  expires: XXXX-XX-XX  usage: SC  
     trust: ultimate      validity: unknown
ssb  rsa3072/XXXXXXX
     created: XXXX-XX-XX  expires: XXXX-XX-XX  usage: E   
[ unknown] (1). User <user@example.com>
Please note that the shown key validity is not necessarily correct
unless you restart the program.
</code>

<code bash>
gpg> 
CTRL+D
</code>