• Frequently Asked Questions
  • Generic concepts
  • What is PKCS#11?
  • What is PKCS#15
  • Can I use PKCS#15 and PKCS#11 simultaneously?
  • I have a PKCS#11 compatible smart card. Can I use it with OpenSC?
  • I have a blank smart card which claims PKCS#15 support. Can I initialize it with OpenSC?
  • My smart card comes with a PKCS#11 module. Do I need OpenSC?
  • Smart card reader issues
  • Do I need OpenCT to use OpenSC?
  • I have installed OpenSC, OpenCT, pcsc-lite and ccid and I'm having troubles connecting to my CCID compatible reader
  • I'm using Ubuntu/Debian and OpenSC does not find any PC/SC readers (but pcsc_scan does)
  • I have a smart card reader installed but a Java application does not see it
  • Card support / card driver related
  • What does "Unsupported INS byte in APDU" mean?
  • How can I verify that my card is supported by OpenSC?
  • What does "read only support" mean?
  • What to do if my card is not supported by OpenSC?
  • Application support questions
  • Is it possible to make GDM automatically ask for the PIN when a card is inserted?
  • Can I store my GnuPG key on a smart card? Can I use gnupg with OpenSC?
  • Do I need to install both OpenCT and OpenSC ?
  • Mac OS X related questions
  • I want to use my smart card on OS X but the system asks me for some password instead of PIN?
  • Miscellaneous questions
  • Do you have a privacy policy?
  • Where can I buy smart cards ?