RemoteSc provides access to the smart card for client applications that do not have local access to them. The server runs on a local computer with a smart card installed. The client application loads the librpkcs11 module and forward high-level interface PKCS#11 to the server. The TLS protocol is used for secure communication between components.

• Install server in Windows

  remotesc.exe install --provider "C:\Program Files\Yubico\Yubico PIV Tool\bin\libykcs11.dll" --listen "<vEthernet (WSL)>"
  

  The command will install RemoteSC as a service and out a configuration with a shared secret:

  {
      "fingerprint": "6dF48TTAZtJwGd3jzPOo+rWjcuyfVw/Mb/YV3JLuCF4=",
      "secret": "JEQO8S9fg6uNkPV7/ie121LzaqQsIRiKerby85Y89SM="
  }
  

• Then configure the client librpkcs11.so module. Put in the file ~/.config/remotesc.json configuration given by the server.

• Now you can use YubiKey from any application that supports the PKCS#11 interface by specifying the path to the librpkcs11.so module:

  ssh -I /path/to/librpkcs11.so
  ssh-keygen -I /path/to/librpkcs11.so
  ...