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Property "-Has subobject" has a restricted application area and cannot be used as annotation property by a user.Recipe "How to create, configure, export and import GnuPG keys";?HasDirection;?IsMotivating;?IsMotivatedBy;?HasReasoning Property "-Has subobject" has a restricted application area and cannot be used as annotation property by a user.Recipe "How to create, configure, export and import GnuPG keys";?HasDirection;?IsMotivating;?IsMotivatedBy;?HasReasoning

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DSKIMRecipe ‎ (← links)
GnuPG ‎ (← links)
UseCase "Easy System Cloning (DSESC) Backup" ‎ (← links)
Interface "Notices" ‎ (← links)

Content

Notice:

The following steps are valid for Ubuntu as the workstation's operating system.
Background:
- GnuPG Mini Howto
- Ubuntu GnuPrivacyGuardHowto

Instructions

Create a key pair

Install rng-tools

In order to increase the quantity of entropy in kernel to make /dev/random faster, install rng-tools, which is a set of utilities related to random number generation in kernel.

user@workstation:~$ sudo apt-get install rng-tools
user@workstation:~$ sudo rngd -r /dev/urandom

Generate the key pair

user@workstation:~$ gpg --gen-key

Choose RSA and RSA (default) for both encryption and signing.
Set keysize
Set expiration
Set real name + e-mail address + comment
Set passphrase
Do random bytes activity

This will result in something looking akin to this:

gpg: key 944CBA14 marked as ultimately trusted
public and secret key created and signed.

gpg: checking the trustdb
gpg: 3 marginal(s) needed, 1 complete(s) needed, PGP trust model
gpg: depth: 0  valid:   1  signed:   0  trust: 0-, 0q, 0n, 0m, 0f, 1u
pub   1024R/944CBA14 2014-09-12
     Key fingerprint = 1D09 09E0 5F7B 3600 CDBE  5FF3 BF68 E00C 944C BA14
uid                  Yogi Joghurt (Your comment) <yogi@lcc.com>
sub   1024R/7167B984 2014-09-12

Notice:

944CBA14 is the key-id

Add key as default key to $HOME/.bashrc

user@workstation:~$ echo "export GPGKEY=944CBA14" >> $HOME/.bashrc
user@workstation:~$ source $HOME/.bashrc

List keys

List public keys

user@workstation:~$ gpg --list-keys

/home/user/.gnupg/pubring.gpg
-----------------------------
pub   1024R/944CBA14 2014-09-12
uid                  Yogi Joghurt (Your comment) <yogi@lcc.com>
sub   1024R/7167B984 2014-09-12

List secret/private keys

user@workstation:~$ gpg --list-secret-keys

/home/user/.gnupg/secring.gpg
-----------------------------
sec   1024R/944CBA14 2014-09-12
uid                  Yogi Joghurt (Your comment) <yogi@lcc.com>
ssb   1024R/7167B984 2014-09-12

Backup keys

Backup public key

user@workstation:~$ gpg --armor --output <arbitrary name>-public.key --export 944CBA14

Backup private key

user@workstation:~$ gpg --armor --output <arbitrary name>-private.key --export-secret-keys 944CBA14

Import GPG keys for OS user

user@workstation:~$ gpg --import public_key.gpg
user@workstation:~$ gpg --allow-secret-key-import --import secret_key.gpg

Configure GPG keys

user@workstation:~$ gpg --edit-key 944CBA14
...
gpg>

Set trust level

gpg> trust

Change passphrase

gpg> passwd

Exit gpg prompt

gpg> quit

Recipe "How to create, configure, export and import GnuPG keys"

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