OpenPGP is the most widely used email encryption standard. It is defined by the OpenPGP Working Group of the Internet Engineering Task Force (IETF) as a Proposed Standard in RFC …

Jan 17, 2025 · This document contains all the necessary information to develop interoperable applications based on the OpenPGP format. It describes the format and methods needed to …

Jul 30, 2025 · All email applications on this page support the OpenPGP standard either directly or with additional software. The authors of this webpage are not actively participating in the …

OpenPGP is a non-proprietary format for authenticating or encrypting data, using public key cryptography. It is based on the original PGP (Pretty Good Privacy) software, created by Phil …

Email EncryptionGpg4win Gpg4win initiative does not only offer email encryption but a whole suite of tools. It can also be used for file encryption directly in the file explorer. Gpg4win is also the …

The OpenPGP protocol defines standard formats for encrypted messages, signatures, private keys, and certificates for exchanging public keys. It is based on the Pretty Good Privacy (PGP) …

The software stores your OpenPGP certificates and keys. It is available for Windows and Linux. In association with the KMail email client, you can also take advantages of the cryptographical …

All applications on this page implement the OpenPGP standard. The authors of this webpage are not actively participating in the development of each of these third-party apps.

Gpg4o is a Microsoft Outlook Add-in which implements the OpenPGP standard through GnuPG. It is available for Outlook 2016 and later (classic desktop versions, including Outlook 2021 and …

GpgFrontend supports some new features of OpenPGP. Features: Open source, free, no need to install. Can run on Windows, Linux and macOS. Just double-click, and then you can use it …