Hardware-based SSH/GPG/age agent

A CSP for the OpenPGP card - goal: add write support for certificate enrollment

A high-level OpenPGP library

Fork of go/x/crypto, providing an up-to-date OpenPGP implementation

PKCS#11 provider with smart card support via GnuPG

ObjectivePGP is an open-source library for iOS and macOS that provides developers with tools for implementing OpenPGP encryption and decryption, digital signing, and signature verification in their…

The multiversal cryptoengine!

An SSH and GPG agent which you can use with your PIV hardware security device (e.g. a Yubikey).

Guide to using YubiKey for GnuPG and SSH

Stateless CLI for GopenPGP