The Independent IT-Security Institute: Home. Password Checker. Do Not Track Plus. Pretty Good Privacy. Pretty Good Privacy (PGP) is a data encryption and decryption computer program that provides cryptographic privacy and authentication for data communication. PGP is often used for signing, encrypting, and decrypting texts, e-mails, files, directories, and whole disk partitions and to increase the security of e-mail communications. It was created by Phil Zimmermann in 1991 while working at PKWARE, Inc. PGP and similar software follow the OpenPGP standard (RFC 4880) for encrypting and decrypting data. Design[edit] How PGP encryption works PGP encryption uses a serial combination of hashing, data compression, symmetric-key cryptography, and finally public-key cryptography; each step uses one of several supported algorithms.
Compatibility[edit] As PGP evolves, versions that support newer features and algorithms are able to create encrypted messages that older PGP systems cannot decrypt, even with a valid private key. Confidentiality[edit] PGP can be used to send messages confidentially. Gpg4win. Download Free Software for free download. Gpg4win 2.1.1 Beta Current beta version of Gpg4win 2.1.1 with important security updates of many Gpg4win components in different variants: Full installer (48 MByte) | OpenPGP signature Light installer (20 MByte, without Kleopatra/Qt and Gpg4win-Kompendium) | OpenPGP signature Source code installer (276 MByte) | OpenPGP signature Gpg4win 2.1.0 You can download the full version (including the Gpg4win compendium) of Gpg4win 2.1.0 here: OpenPGP signatur (for gpg4win-2.1.0.exe) (for gpg4win-2.1.0.exe): f619313cb42241d6837d20d24a814b81a1fe7f6d gpg4win-2.1.0.exe Change History Sources and other Gpg4win-2.1.0 variants: OpenPGP signatur (for gpg4win-light-2.1.0.exe) gpg4win-2.1.0.tar.bz2 (source code package); Size: 5 MByte All versions and OpenPGP signatures: files.gpg4win.org .
Installation After downloading please verify the integrity of your Gpg4win package. Read the current README file . Gpg4win Compendium 3.0.0-beta1 Note: The compendium is currently availabe in a ! MIT PGP Key Server.