Download Gpg4win Download Free – 4.3.0

Digital signatures ensure that it has not been altered and comes from a specific sender. Gpg4win supports both relevant cryptography standards, OpenPGP and S/MIME (X.509), and is the official GnuPG distribution for Windows. It is maintained by the developers of GnuPG. Gpg4win and the software provided with Gpg4win are free software (open source; including free for all commercial and non-commercial purposes).

Gpg4win is an installer for Windows and contains several free software components:

• GnuPG: The kernel; this is the encryption tool itself.
• Kleopatra: A certificate manager for OpenPGP and X.509 (S/MIME) and common crypto dialogs.
• GPA: An alternative certificate manager for OpenPGP and X.509 (S/MIME).
• GpgOL: A plugin for Microsoft Outlook 2003/2007/2010/2013 (email encryption).
• GpgEX: A plugin for Microsoft Explorer (file encryption).
• Claws Mail: A complete email application with crypto support.
• Gpg4win Compendium: The documentation (for beginners and advanced users), available in English and German.

Open PGP and S/MIME

Gpg4win supports both: OpenPGP and S/MIME (X.509)

The configuration of X.509 root certificates is made easy by Gpg4win. Now even inexperienced users can start using S/MIME straight out of the box. Security-conscious system administrators should read step-by-step instructions and define a system-wide list of trusted X.509 root certificates.

High algorithmic strength of GnuPG

Gpg4win is the official GnuPG distribution for Windows and provides the high cryptographic standards of GNU Privacy Guard. GnuPG follows the recommendations regarding algorithms and key length of the German Federal Office for Information Security (BSI).

To create OpenPGP and X.509 certificates, Gpg4win uses a key length of 2048bit by default. The default algorithm for signing and encryption is RSA.

Smart card

Gpg4win supports the use of smart cards for OpenPGP and S/MIME. You can find technical details on the GnuPG page.

Signing and encryption

Sign individual files or complete folders directly from Windows Explorer with GpgEX or Kleopatra. You can select multiple files and folders to recursively sign and encrypt them into a gpgtar archive.

Checksums

Create and verify checksums of files – also directly from Windows Explorer or Kleopatra. Gpg4win can create a unique checksum for each selected file, with which the integrity of these files can be verified at any time later. Both creation and verification of these cryptographic checksums (hashes) are performed in an analogous way in the GUI. Gpg4win supports hash algorithms SHA-1, SHA-256 and MD5.

Signing and encryption

The included Outlook plugin GpgOL makes it possible to sign and encrypt e-mails directly in Microsoft Outlook. Attachments can also be encrypted, along with the email body. Verification of signatures and decryption of messages is also done directly in Outlook.

User-friendly certificate selection

The selection of the correct e-certificate is a function of Kleopatra – based on the corresponding e-mail address. Kleopatra displays the automated pre-selection of certificates in the following dialog.