GnuPG is a complete and free replacement for PGP. Because it does not use the patented IDEA algorithm, it can be used without any restrictions. GnuPG is a RFC2440 (OpenPGP) compliant application.
GnuPG is Free Software . GnuPG can be freely used, modified and distributed under the terms of the GNU General Public License.
PGP, on which OpenPGP is based, was originally developed by Philip Zimmermann in the early 1990s.
Project Aegypten provides Sphinx-Clients (Mutt, KMail, ...) compatible to S/MIME within a GnuPG framework. Within this project a few new tools have been developed, most notably "gpgsm" as the S/MIME counterpart of "gpg".
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Here are some key features of "GnuPG":
· 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 RFC2440 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....
What's New in This Release: [ read full changelog ]
· Bug fix for newer versions of Libgcrypt.
· Support the SSH confirm flag and show SSH fingerprints in ssh related pinentries.
· Improved dirmngr/gpgsm interaction for OCSP.
· Allow generation of card keys up to 4096 bit.
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