It was written by Dmitri Ivanov.
YstokCard helps in programming memory-based and file-based card applications. It relies on the following "back-ends":
- Class hierarchy for cards and devices.
- Conventions and macros for defining new card and device types.
- ATR (Answer-To-Request) converting and analysis.
- Calls to Smart Card Resource Manager (winscard.dll on Windows, libpcsclite.so on Linux).