Would you recoomend this project?
GnuPG 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 commandline tool without any graphical stuff. It is the real crypto engine which can be used directly from a command prompt, from shell scripts or by other programs. Therefore it can be considered as a backend for other applications.
You can download file releases of GNU Privacy Guard project from List of release files
System RequirementsOperating System: MacOSX, POSIX (Linux,BSD,Solaris etc..), Windows XP
List of release files