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(Chilkat2-Python) ScMinidriver - Load Certificate from Smart Card or USB Token by IndexSee more ScMinidriver ExamplesDemonstrates how to load a certificate located on a smart card or USB token by key container index.
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 = "SCM Microsystems Inc. SCR33x USB Smart Card Reader 0" success = scmd.AcquireContext(readerName) if (success == False): print(scmd.LastErrorText) sys.exit() # If successful, the name of the currently inserted smart card is available: print("Card name: " + scmd.CardName) # If desired, perform regular PIN authentication with the smartcard. # For more details about smart card PIN authentication, see the Smart Card PIN Authentication Example retval = scmd.PinAuthenticate("user","000000") if (retval != 0): print("PIN Authentication failed.") cert = chilkat2.Cert() # We can pass a specific key container index, or -1 to locate the 1st non-empty container containing a certificate and private key. keyContainerIndex = -1 # keySpec can be "kex" or "sig" to indicate the key-exchange or signature position within the container. # keySpec can also be "any" to accept either position, with preference given to the "sig" position if both are occupied. keySpec = "any" success = scmd.GetCert(keyContainerIndex,keySpec,cert) if (success == False): print("Failed to load the certificate.") else: print("Successfully loaded the cert object from the smart card / USB token.") # Note: When successful, the cert object is internally linked to the ScMinidriver object's authenticated session. # The cert object can now be used to sign or do other cryptographic operations that occur on the smart card / USB token. # If your application calls PinDeauthenticate or DeleteContext, the cert will no longer be able to sign on the smart card # because the smart card ScMinidriver session will no longer be authenticated or deleted. # ... # ... # ... # When finished with operations that required authentication, you may if you wish, deauthenticate the session. success = scmd.PinDeauthenticate("user") 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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