GNU Privacy Guard (GPG) is a free software alternative to the PGP (Pretty Good Privacy). This is data encryption and decryption computer program.
In this program we can encrypt all of data in the computer.
Before we create GPG account we must install Kleopatra and Thunderbird to configure GPG account
root@bt:~# apt-get install kleopatra
Reading package lists… Done
Building dependency tree
Reading state information… Done
………………………
Reading package lists… Done
Building dependency tree
Reading state information… Done
………………………
after finished installation you must install library (libakonadi-contact4)
root@bt:~# apt-get install libakonadi-contact4
Reading package lists… Done
Building dependency tree
Reading state information… Done
……………………….
root@bt:~# apt-get install libakonadi-contact4
Reading package lists… Done
Building dependency tree
Reading state information… Done
……………………….
this how to create GPG account
root@bt:~# gpg --gen-key
gpg (GnuPG) 1.4.10; Copyright (C) 2008 Free Software Foundation, Inc.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
gpg: directory `/root/.gnupg' created
gpg: new configuration file `/root/.gnupg/gpg.conf' created
gpg: WARNING: options in `/root/.gnupg/gpg.conf' are not yet active during this run
gpg: keyring `/root/.gnupg/secring.gpg' created
gpg: keyring `/root/.gnupg/pubring.gpg' created
Please select what kind of key you want:
(1) RSA and RSA (default)
(2) DSA and Elgamal
(3) DSA (sign only)
(4) RSA (sign only)
Your selection? 1
RSA keys may be between 1024 and 4096 bits long.
What keysize do you want? (2048) 2555
Requested keysize is 2555 bits
rounded up to 2560 bits
Please specify how long the key should be valid.
0 = key does not expire
<n> = key expires in n days
<n>w = key expires in n weeks
<n>m = key expires in n months
<n>y = key expires in n years
Key is valid for? (0) 0
Key does not expire at all
Is this correct? (y/N) y
You need a user ID to identify your key; the software constructs the user ID
from the Real Name, Comment and Email Address in this form:
"Heinrich Heine (Der Dichter) <heinrichh@duesseldorf.de>"
Real name: Cahya Nugraha
Email address: XXXX@Xmail.com
Comment: whateper
You selected this USER-ID:
"Cahya Nugraha (whateper) <XXXX@Xmail.com>"
Change (N)ame, (C)omment, (E)mail or (O)kay/(Q)uit? o
You need a Passphrase to protect your secret key.
gpg (GnuPG) 1.4.10; Copyright (C) 2008 Free Software Foundation, Inc.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
gpg: directory `/root/.gnupg' created
gpg: new configuration file `/root/.gnupg/gpg.conf' created
gpg: WARNING: options in `/root/.gnupg/gpg.conf' are not yet active during this run
gpg: keyring `/root/.gnupg/secring.gpg' created
gpg: keyring `/root/.gnupg/pubring.gpg' created
Please select what kind of key you want:
(1) RSA and RSA (default)
(2) DSA and Elgamal
(3) DSA (sign only)
(4) RSA (sign only)
Your selection? 1
RSA keys may be between 1024 and 4096 bits long.
What keysize do you want? (2048) 2555
Requested keysize is 2555 bits
rounded up to 2560 bits
Please specify how long the key should be valid.
0 = key does not expire
<n> = key expires in n days
<n>w = key expires in n weeks
<n>m = key expires in n months
<n>y = key expires in n years
Key is valid for? (0) 0
Key does not expire at all
Is this correct? (y/N) y
You need a user ID to identify your key; the software constructs the user ID
from the Real Name, Comment and Email Address in this form:
"Heinrich Heine (Der Dichter) <heinrichh@duesseldorf.de>"
Real name: Cahya Nugraha
Email address: XXXX@Xmail.com
Comment: whateper
You selected this USER-ID:
"Cahya Nugraha (whateper) <XXXX@Xmail.com>"
Change (N)ame, (C)omment, (E)mail or (O)kay/(Q)uit? o
You need a Passphrase to protect your secret key.
(insert your passphrase then wait for configure your passphrase)
We need to generate a lot of random bytes. It is a good idea to perform
some other action (type on the keyboard, move the mouse, utilize the
disks) during the prime generation; this gives the random number
generator a better chance to gain enough entropy.
+++++
....+++++
We need to generate a lot of random bytes. It is a good idea to perform
some other action (type on the keyboard, move the mouse, utilize the
disks) during the prime generation; this gives the random number
generator a better chance to gain enough entropy.
Not enough random bytes available. Please do some other work to give
the OS a chance to collect more entropy! (Need 23 more bytes)
.............+++++
.....+++++
gpg: /root/.gnupg/trustdb.gpg: trustdb created
gpg: key 343CB9D0 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 2560R/343CB9D0 2011-06-04
Key fingerprint = AA8E 45B1 57CE 38B8 8ACE 3D57 36A0 C853 343C B9D0
uid Cahya Nugraha (whateper) <XXXX@Xmail.com>
sub 2560R/XXXXXXXX 2011-06-04
root@bt:~# gpg -K
/root/.gnupg/secring.gpg
------------------------
sec 2560R/343CB9D0 2011-06-04
uid Cahya Nugraha (whateper) <XXXX@Xmail.com>
ssb 2560R/XXXXXXXX 2011-06-04
root@bt:~# gpg --send-keys 343CB9D0
gpg: sending key 343CB9D0 to hkp server keys.gnupg.net
root@bt:~#
that's to make public key and private key.
and then you can configure it in Kleopatra and Thunderbird
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