The GNU Privacy Guard
GnuPG is the GNU project's
complete and free implementation of
the OpenPGP standard as defined by
RFC2440
. GnuPG allows to
encrypt and sign your data and communication, features a
versatile key managment system as well as access modules for all
kind of public key directories. GnuPG, also known as
GPG, is a command line tool with features for easy
integration with other applications. A wealth of
frontend applications
and
libraries
are
available. Version 2 of GnuPG also also provides support for
S/MIME.
GnuPG is
Free Software
(meaning
that it respects your freedom). It can be freely used,
modified and distributed under the terms of the
GNU General Public License
.
GnuPG comes in two flavours:
1.4.7
is the well known and portable
standalone version, whereas
2.0.3
is the enhanced and somewhat harder to build
version.
Project
Gpg4win
provides a Windows version of GnuPG. It is nicely integrated
into a installer and features several frontends as well as
(German) manuals.
Project
Aegypten
developed the S/MIME
functionality in GnuPG 2.
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