Features

GnuPG itself 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.

However, even when used on the command line it provides all functionality needed - this includes an interactive menu system. The set of commands of this tool will always be a superset of those provided by any frontends.

  • Full replacement of PGP.
  • Does not use any patented algorithms.
  • GPLed, written from scratch.
  • Can be used as a filter program.
  • Full OpenPGP implementation (see RFC4880 at RFC Editor).
  • Better functionality than PGP and some security enhancements over PGP 2.
  • Decrypts and verifies PGP 5, 6 and 7 messages.
  • Supports ElGamal, DSA, RSA, AES, 3DES, Blowfish, Twofish, CAST5, MD5, SHA-1, RIPE-MD-160 and TIGER.
  • Easy implementation of new algorithms using extension modules.
  • The User ID is forced to be in a standard format.
  • Supports key and signature expiration dates.
  • English, Danish, Dutch, Esperanto, Estonian, French, German, Japanese, Italian, Polish, Portuguese (Brazilian), Portuguese (Portuguese), Russian, Spanish, Swedish and Turkish language support.
  • Online help system.
  • Optional anonymous message receivers.
  • Integrated support for HKP keyservers (wwwkeys.pgp.net).
  • Clears signed patch files which can still be processed by patch.
  • and many more things….
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