Thank you for the answers!
It ist very useful, but I have more information about this task. The real challenge is reading and writing of signatures using a smart card. This smart card is a chip and is placed in an USB-Stick. The chip looks like in bank cards or sim-cards.
In java there is some library
I really have no idea how it should work. Additional information that I have is java-technology
Java™ Smart Card I/O API
In C++ there are Standard Windows library (winscard).
I can not say more about this subject. Maybe somebody has experience? Or at least if it generally works using 1C?
Thanks a lot in advance!