2017-12-02 22:02:37 +00:00
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###
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GPG
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###
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2017-12-05 21:32:10 +00:00
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TODO
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====
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* setpref, or elsehow at key generation
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* ! suffix to exclude subkeys
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* trust
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* sign
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* delete
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* ssh authentication ???
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Configure
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=========
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2019-05-03 12:03:26 +00:00
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If up:
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.. code:: shell
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killall gpg-agent
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killall dirmngr
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2017-12-05 21:32:10 +00:00
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wipe if needed
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--------------
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.. code:: shell
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rm --force --recursive ~/.gnupg
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mkdir -m 700 ~/.gnupg
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check available algorithms
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--------------------------
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.. code:: shell
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gpg --version
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avoid default use of SHA256
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---------------------------
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* gpg.conf
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::
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cert-digest-algo SHA512
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personal-digest-preferences SHA512
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personal-cipher-preferences CAMELLIA256 TWOFISH AES256
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personal-compress-preferences BZIP2 ZLIB ZIP
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default-preference-list SHA512 CAMELLIA256 TWOFISH AES256 BZIP2 ZLIB ZIP
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keyserver-options include-revoked
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with-subkey-fingerprint
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avoid DL/UL issues, depending on DNS
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------------------------------------
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* dirmngr.conf
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::
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standard-resolver
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Generate
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========
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master key
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----------
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.. code:: shell
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2019-05-03 12:04:29 +00:00
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gpg --expert --full-generate-key
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2017-12-05 21:32:10 +00:00
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::
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2019-05-03 12:04:29 +00:00
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8 → RSA (set your own capabilities)
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2017-12-05 21:32:10 +00:00
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4096
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2019-05-03 12:04:29 +00:00
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s → toggle the sign capability
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e → toggle the encrypt capability
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q → finished
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2y → key expires in 2 years
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2017-12-05 21:32:10 +00:00
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y → this is correct
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First Last
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user@domain.tld
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2019-05-03 12:04:29 +00:00
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comment
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2017-12-05 21:32:10 +00:00
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o → ok
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PassPhrase
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revocation certificate
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----------------------
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.. code:: shell
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gpg --generate-revocation "KeyID" > "FFIINNGGEERRPPRRIINNTT.rev"
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.. warning::
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Hide this file in an encrypted container!
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Search
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======
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.. code:: shell
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gpg --search-keys "Key ID"
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Download
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========
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.. code:: shell
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gpg --receive-keys "KEY ID"
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List
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====
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.. code:: shell
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gpg --list-keys
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Modify
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======
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.. code:: shell
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gpg --edit-key "KEY ID"
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[…]
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::
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PassPhrase
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save
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add a subkey to a master key
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----------------------------
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::
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addkey
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set expiration date
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-------------------
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::
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expire
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add another UserID
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------------------
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::
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adduid
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First Last
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user@domain.tld
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Comment
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set primary UserID
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------------------
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::
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uid 1
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primary
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Export
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======
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.. code:: shell
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gpg --armor --export "Key ID" > pub.asc
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Dump
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====
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.. code:: shell
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pgpdump pub.asc
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Secure
|
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======
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find out master keygrip
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-----------------------
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.. code:: shell
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gpg --list-keys --with-keygrip
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hide the master key in an encrypted container
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---------------------------------------------
|
|
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* ~/.gnupg/private-keys-v1.d/KKEEYYGGRRIIPP.key
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|
|
Upload
|
|
|
|
|
======
|
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.. code:: shell
|
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gpg --send-keys "KEY ID"
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Revoke
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======
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.. code:: shell
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gpg --import "FFIINNGGEERRPPRRIINNTT.rev"
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gpg --send-keys "KEY ID"
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