OpenPGPbased

OpenPGPbased is an informal term used to describe software, services, protocols and workflows that implement or rely on the OpenPGP standard for encryption and digital signatures. The OpenPGP standard (most commonly referenced via RFC 4880 and its successors) defines formats for encrypted messages, signatures, public and private key management, and associated metadata. OpenPGPbased systems typically provide end-to-end confidentiality, authentication, integrity and non-repudiation through a combination of asymmetric and symmetric cryptography.

Common uses for OpenPGPbased tools include secure email, file encryption, software and package signing, and archival protection. They often incorporate features such as keyrings, keyservers, revocation certificates, and optional trust models like the web of trust. Well-known implementations that are OpenPGPbased include GNU Privacy Guard (GnuPG), OpenPGP.js, and various mobile and desktop clients and libraries that support the OpenPGP message and key formats.

Interoperability among OpenPGPbased implementations is generally strong but can be affected by differing optional features, algorithm support, and user interface choices. Security considerations emphasize proper key management, timely revocation, algorithm agility, and careful handling of metadata. Usability challenges and the decentralized trust model have influenced adoption patterns; some modern applications prefer other protocols for seamless user experience and federated key distribution.

OpenPGPbased solutions continue to be valued where decentralized trust, long-term compatibility and explicit user control over keys are priorities.