.. highlight:: sh .. _OpenSC: http://www.opensc-project.org/opensc .. _GadgetFS: http://www.linux-usb.org/gadget/ .. _libccid: http://pcsclite.alioth.debian.org/ccid.html .. |npa| replace:: :ref:`npa` ******************************************************************************** CCID Emulator ******************************************************************************** :Author: Frank Morgner :License: GPL version 3 :Tested Platforms: Linux (Debian, Ubuntu, OpenMoko) Welcome to the CCID Emulator. The purpose of the CCID Emulator is to forward a PC/SC smartcard reader as a standard USB CCID reader. If the machine running the CCID Emulator is in USB device mode, a local reader is forwareded via USB to another machine. If in USB host mode, a USB CCID reader is virtually plugged into the machine running the CCID Emulator. Applications on Windows and Unix-like systems can access the CCID Emulator through PC/SC as if it were a real smart card reader. The CCID Emulator accesses a smart card through a local reader. Simple commands such as transmitting an APDU (``SCardTransmit`` and accordingly ``PC_to_RDR_XfrBlock``) are directly forwarded to the local reader/smart card. CCID Emulator can perform secure PIN verification and modification (``FEATURE_VERIFY_PIN_DIRECT`` or ``FEATURE_MODIFY_PIN_DIRECT`` and accordingly ``PC_to_RDR_Secure``). Moreover the CCID Emulator has support the for Password Authenticated Connection Establishment (PACE) using |npa| (``FEATURE_EXECUTE_PACE``). Thus CCID Emulator can be used with the German identity card ("neuer Personalausweis", nPA) similar to a "Standardleser" (CAT-S) or "Komfortleser" (CAT-K). The CCID Emulator is implemented using GadgetFS_. Some fragments of the source code are based on the GadgetFS example and on the source code of the OpenSC_ tools. .. include:: autotools.rst Running the CCID Emulator has the following dependencies: - Linux Kernel with GadgetFS_ - OpenSC_ - |npa| (only if support for PACE is enabled) Whereas using the CCID Emulator on the host system as smart card reader only needs a usable PC/SC middleware with USB CCID driver. This is the case for most modern Windows and Unix-like systems by default. ----------------- Hints on GadgetFS ----------------- To create a USB Gadget in both USB host and USB client mode, you need to load the kernel module :program:`gadgetfs`. A guide focused on Debian based systems to run and compile :program:`gadgetfs`, you can find `here `_. On OpenMoko it is likely that you need to `patch your kernel `_. If you also want to switch multiple times between :program:`gadgetfs` and :program:`g_ether`, `another patch is needed `_. If you are using a more recent version of :program:`dummy_hcd` and get an error loading the module, you maybe want to check out `this patch `_. --------------- Hints on OpenSC --------------- Without the |npa| the CCID Emulator links against libopensc, which is discouraged and hindered since OpenSC version >= 0.12. (We really need to get rid of this dependency or integrate better into the OpenSC-framework.) You need the OpenSC components to be installed (especially :file:`libopensc.so`). Here is an example of how to get the standard installation of OpenSC_:: PREFIX=/tmp/install OPENSC=opensc svn co http://www.opensc-project.org/svn/opensc/trunk $OPENSC cd $OPENSC autoreconf -i ./configure --prefix=$PREFIX make make install Now :file:`libopensc.so` should be located in ``$PREFIX/lib``. Here is how to configure the CCID Emulator to use it:: ./configure OPENSC_LIBS="-L$PREFIX/lib -lopensc" ===== Usage ===== The CCID Emulator has various command line options to customize the appearance on the USB host. In order to run the CCID Emulator GadgetFS_ must be loaded and mounted. The CCID Emulator is compatible with the unix driver libccid_ and the windows smart card driver. To initialize PACE using the PC/SC API you need to patch libccid and pcsc-lite (see directory patches). .. program-output:: ccid-emulator --help cats-test can be used to test the PACE capabilities of a smart card reader with PACE support (such as the CCID Emulator or any other "Standardleser" CAT-S or "Komfortleser" CAT-C) via PC/SC. .. program-output:: cats-test .. include:: questions.rst