What is GPG (GNU Privacy Guard)?
GPG, or GnuPG, is GNU Privacy Guard. GnuPG is a complete and free replacement for PGP.
Gpg4win is an installer package for GPG that adds a graphical shell and plugins for Microsoft Outlook and Windows Explorer.
Because GPG does not use the patented IDEA algorithm, it can be used without any restrictions.
GnuPG is a RFC2440 (OpenPGP Message Format) compliant application.
GPG Encryption Protocol Support
GnuPG supports the ElGamal, DSA, RSA, AES, 3DES, Blowfish, Twofish, CAST5, MD5, SHA-1, RIPE-MD-160 and TIGER algorithms.
Additional Reading on GPG
For more information on GnuPG, refer to the GPG FAQ.
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