rtfd/in/public/security/gpg/overview.rst

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********
OverView
********
.. todo::
* setpref, or elsehow at key generation
* ! suffix to exclude subkeys
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* trust key
* sign file
* sign key
* encrypt for [hidden-]recipient
* delete secret key
* import secret key
* refresh keys
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Search
======
.. code:: shell
gpg --search-keys "Key ID"
Download
========
.. code:: shell
gpg --receive-keys "KEY ID"
List
====
.. code:: shell
gpg --list-keys
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.. code:: shell
gpg --list-signatures
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Modify
======
.. code:: shell
gpg --expert --edit-key "KEY ID"
[…]
::
save
add a subkey to a master key
----------------------------
::
addkey
8 → RSA (set your own capabilities)
[…]
::
q → finished
4096
1y → key expires in 1 year
y → this is correct
y → really create
sign
^^^^
::
e → toggle the encrypt capability
.. code:: shell
gpg --quick-add-key FFIINNGGEERRPPRRIINNTT rsa4096 auth 1y
gpg --quick-add-key FFIINNGGEERRPPRRIINNTT rsa4096 encr 1y
gpg --quick-add-key FFIINNGGEERRPPRRIINNTT rsa4096 sign 1y
encrypt
^^^^^^^
::
s → toggle the sign capability
authenticate
^^^^^^^^^^^^
::
s → toggle the sign capability
e → toggle the encrypt capability
a → toggle the authenticate capability
set expiration date
-------------------
::
expire
1y
y
add another UserID
------------------
::
adduid
First Last
user@domain.tld
comment
o
set primary UserID
------------------
::
uid 1
primary
Export
======
private key
-----------
.. code:: shell
gpg --armor --export-secret-keys FFIINNGGEERRPPRRIINNTT > key.gpg
private subkeys
---------------
.. code:: shell
gpg --armor --export-secret-subkeys FFIINNGGEERRPPRRIINNTT > subkeys.gpg
public key
----------
.. code:: shell
gpg --armor --export "Key ID" > id.asc
public SSH key
--------------
.. code:: shell
gpg --armor --export-ssh-key "Key ID" > id.pub
Dump
====
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.. code:: shell
gpg --list-packets
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.. code:: shell
pgpdump pub.asc
Secure
======
hide the master key in an encrypted container
---------------------------------------------
* ~/.gnupg/private-keys-v1.d/KKEEYYGGRRIIPP.key
Revoke
======
.. code:: shell
gpg --import "FFIINNGGEERRPPRRIINNTT.rev"
gpg --send-keys "KEY ID"