https://github.com/oasis-tcs/pkcs11 Github Repo Stars: oasis-tcs/pkcs11

OASIS PKCS 11 TC: Repository to support version control for development of technical files associated with the OASIS PKCS11 specification

https://github.com/OpenSC Github Group Follows: OpenSC
https://github.com/OpenSC/OpenSC Github Repo Stars: OpenSC/OpenSC

Open source smart card tools and middleware. PKCS#11/MiniDriver/Tokend

https://developers.yubico.com/yubico-piv-tool/YKCS11/
https://developers.yubico.com/PIV/Guides/SSH_with_PIV_and_PKCS11.html

This is a PKCS#11 module that allows external applications to communicate with the PIV application running on a YubiKey.

https://github.com/Pkcs11Interop/pkcs11-logger Github Repo Stars: Pkcs11Interop/pkcs11-logger

PKCS#11 logging proxy module

Application <--> PKCS11-LOGGER library <--> PKCS#11 library <--> Device