--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/pgp.rst	Sun Nov 29 19:52:44 2015 +0200
@@ -0,0 +1,98 @@
+.. -*- coding: utf-8; -*-
+.. include:: HEADER.rst
+
+==========
+ PGP/GPG.
+==========
+.. contents::
+
+What preffered client?
+======================
+
+GNU gpg.
+
+How import keys from key-server?
+================================
+::
+
+  $  gpg --keyserver pgp.mit.edu --recv-keys $KEYID
+
+How mark key as trusted?
+========================
+::
+
+  $ gpg --edit-key $KEYID trust
+
+How export key?
+===============
+::
+
+  $ gpg -a --export $KEYID >$FILE.asc
+  $ gpg --output $PRIVKEY.gpg --armor --export-secret-key $KEYID
+
+How create own PGP key?
+=======================
+::
+
+  $ gpg --gen-key   # answer the question
+  ...
+  $ gpg -o $keyfile --export-secret-keys $NAME
+
+How import keys from file?
+==========================
+::
+
+  $ gpg --import $keyfile
+
+How submit public key to key server?
+====================================
+::
+
+  $ gpg --keyserver pgp.mit.edu --send-key $KEYID
+
+What keys in local db?
+======================
+::
+
+  $ gpg --list-keys
+  $ gpg --list-keys $KEYID
+  $ gpg --list-keys $EMAIL
+
+  $ gpg --list-secret-keys
+
+How delete key?
+===============
+::
+
+  $ gpg --delete-key $KEYID
+  $ gpg --delete-key $USER
+  $ gpg --delete-key $EMAIL
+
+  $ gpg --delete-secret-key $KEYID
+
+Dump content of key or signture.
+================================
+::
+
+  $ gpg --list-packets $FILE.sig
+  $ gpg --list-packets $FILE.key
+
+  $ sudo apt-get install pgpdump
+  $ pgpdump $FILE.sig
+  $ pgpdump $FILE.key
+
+How sign file?
+==============
+
+To sign with first key::
+
+  $ gpg -o $file.sig --sign $file
+  $ gpg --default-key $NAME -o $file.sig --sign $file
+  $ gpg -u ${USER_NAME} -o $file.sig --sign $file
+
+How verify signature?
+=====================
+::
+
+  $ gpg --verify $file.sig
+