The GNU Privacy GuardGnuPG is the GNU project's
complete and free implementation of
the OpenPGP standard as defined by
RFC4880
. GnuPG allows to
encrypt and sign your data and communication, features a
versatile key management system as well as access modules for all
kinds 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 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:
1.4.11 is the well known and portable
standalone version, whereas
2.0.17 is the enhanced and somewhat harder to build
version. Project
Gpg4win provides a Windows version of GnuPG. It is nicely integrated
into an installer and features several frontends as well as
English and German manuals. Project
GPGTools provides a Mac OS X version of GnuPG. It is nicely integrated
into an installer and features all required tools. Project
Aegypten developed the S/MIME
functionality in GnuPG 2. |