OpenPGP Archives - LinuxLinks

Keysign – OpenPGP key signing helper

Keysign is a GTK application that securely exchanges and signs OpenPGP keys over a local network or Bluetooth without relying on a keyserver.

Sequoia is a modern OpenPGP implementation written in Rust with command-line tools, libraries, certificate handling and verification.

LibrePGP is an alternative OpenPGP specification focused on compatibility, long-term use, updated algorithms and existing implementations.

PGPTool offers desktop OpenPGP encryption for files and text, with key management, ECC support and workflows for regularly encrypted files.

Kleopatra manages OpenPGP and X.509 certificates with tools for file encryption, digital signatures, smartcards and key discovery on Linux.

Claws Mail is a lightweight GTK email and news client with OpenPGP and S/MIME encryption, message filtering, OAuth2 and extensible plugins.

GnuPG implements OpenPGP for encryption, signing and key management, with smartcard support, modern authenticated encryption and automation

Mailvelope adds OpenPGP encryption to webmail, with browser-based key management, optional GnuPG integration, composing and key backup.

Enigmail was a Thunderbird OpenPGP extension providing encryption, digital signatures and GnuPG integration before native OpenPGP support.

OpenPGP defines interoperable formats for encrypted messages, digital signatures and public-key management, currently specified by RFC 9580.