Open-source implementation of a substantial portion of the API
FIDO® Certified StrongKey FIDO Server (SKFS)
A Free, Easy-to-Use, Cross-Platform OpenPGP Crypto Tool.
UFONet - Denial of Service Toolkit
Powerful webdav client and sync tools with client-side AES encryption
Smoke: Android Crypto Chat Messenger
Web application to register FIDO keys from TLS ClientAuth sessions
Centralized signing and verification
Open Source PKI solutions
FIDO strong authentication, encryption, digital signature engine
Secure mail + Tor gateway
CrococryptQuerl is a web-based file encryption & transfer tool
ImpraStorage provided a private imap access to store large files
Sending encrypted data through internet web applications.
pythonic kerberosish ticket system: easy to use, easy to subclass