Flipper Zero badusb payload library
SQL operating system instrumentation and monitoring framework
Add digital signatures to PDF documents - GUI and CLI, cross-platform
Implementation of GlobalPlatform smart card specification
PHP strong authentication library, web interface & CLI, OATH certified
57 Hash Functions In One Program, plus each with HMAC or KMAC
yubikey-agent is a seamless ssh-agent for YubiKeys
OpenSK is an open-source implementation for security keys
American fuzzy lop - a security-oriented fuzzer
SCSI Tape Encryption Manager
Another C++ Hack
A MAC address based user authentication system for campus-wide network
Ciphermail email encryption gateway (S/MIME, OpenPGP, PDF encryption)
Software de controle deBraço Robotico em Linux
Lite Security Module: a daemon to handle PKCS11 Secure Boxes