GnuPG (the GNU Privacy Guard or GPG) is GNU's tool for secure
communication and data storage. It can be used to encrypt data and
to create digital signatures. It includes an advanced key
management facility and is compliant with the proposed OpenPGP
Internet standard as described in RFC2440. As such, it is meant to
be compatible with PGP from NAI, Inc. Because it does not use any
patented algorithms, it can be used without any restrictions. This
is the LTS release.
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