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(Chilkat2-Python) ScMinidriver - PIN Authentication for Smart Card or USB TokenSee more ScMinidriver ExamplesDemonstrates how to PIN authenticate with a connected smart card or USB token.
import sys import chilkat2 # This example requires the Chilkat API to have been previously unlocked. # See Global Unlock Sample for sample code. scmd = chilkat2.ScMinidriver() # Reader names (smart card readers or USB tokens) can be discovered # via List Readers or Find Smart Cards readerName = "Alcor Micro USB Smart Card Reader 0" success = scmd.AcquireContext(readerName) if (success == False): print(scmd.LastErrorText) sys.exit() # If we are successful, the name of the currently inserted smart card is available: cardName = scmd.CardName print("Card name: " + cardName) # Perform regular PIN authentication with the smartcard. # If authentication is successful, then the ScMinidriver session is authenticated and # operations such as signing are permissible. # The pin ID can be "user", "admin", or a number "3" through "7" (passed as a string). # The possible pin ID's for a given smartcard are obtained via the GetCardProperties method. # See Get Smart Card Properties for sample code. # You should generally use the "user" pin ID. You would only use the other pin ID's for very specific purposes. pinId = "user" # Change this to the PIN for your smart card. pin = "0000" retval = scmd.PinAuthenticate(pinId,pin) # The return value is 0 for success. # If the retval is greater than 0, it is the number of attempts remaining before the PIN is blocked. # If the retval equals -1, then something else went wrong and you should consult the LastErrorText. if (retval < 0): print(scmd.LastErrorText) sys.exit() if (retval > 0): print("PIN authentcation failed, " + str(retval) + " attempts remaining before the PIN is blocked.") else: print("PIN authentication successful. Your session is now authenticated and you may proceed with operations such as signing.") # ... # ... # ... # You may deauthenticate the session when finished with operations that required authentication. success = scmd.PinDeauthenticate(pinId) if (success == False): print(scmd.LastErrorText) # Delete the context when finished with the card. success = scmd.DeleteContext() if (success == False): print(scmd.LastErrorText) |
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