(Chilkat2-Python) PKCS11 Import a Private Key onto the HSM

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Demonstrates how to import an existing RSA private key onto the smartcard/token. The imported key is a token object, meaning it stays on the HSM and exists beyond the end of the PKCS11 session.

Note: This example requires Chilkat v9.5.0.96 or later.

Chilkat2 Python Downloads install with pip pip3 install chilkat2 or download... Python Module for Windows, Linux, Alpine Linux, MacOS, Solaris

import sys
import chilkat2

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

# Note: Chilkat's PKCS11 implementation runs on Windows, Linux, Mac OS X, and other supported operating systems.

pkcs11 = chilkat2.Pkcs11()

# Use the PKCS11 driver (.dll, .so, .dylib) for your particular HSM.
# (The format of the path will change with the operating system.  Obviously, "C:/" is not used on non-Windows systems.
pkcs11.SharedLibPath = "C:/Program Files (x86)/Gemalto/IDGo 800 PKCS#11/IDPrimePKCS1164.dll"

# Establish a logged-on session.
pin = "0000"
userType = 1
success = pkcs11.QuickSession(userType,pin)
if (success == False):
    print(pkcs11.LastErrorText)
    sys.exit()

# Let's import a certificate's private key onto the HSM.
# First, we'll load the certificate from a .pfx (also known as .p12), which is a file format
# that also includes the certificate's private key.
cert = chilkat2.Cert()
success = cert.LoadPfxFile("qa_data/pfx/ehealth.fgov.be_testing.p12","p12_password")
if (success == False):
    print(cert.LastErrorText)
    sys.exit()

# Let's get the certificate's private key.
# privKey is a CkPrivateKey
privKey = cert.ExportPrivateKey()
if (cert.LastMethodSuccess == False):
    print(cert.LastErrorText)
    sys.exit()

# Build a PKCS11 template to provide additional information about the key to be imported.
jsonTemplate = chilkat2.JsonObject()

# Indicate that the key is to be stored on the token.  It is NOT a session object.
jsonTemplate.UpdateBool("token",True)

# Indicate that the key can be used for signing.
jsonTemplate.UpdateBool("sign",True)

# Provide an arbitrary ID and label (anything you want).
# The information in the ID and/or label provides one means for finding the key in future PKCS11 sessions.
jsonTemplate.UpdateString("id_hex","010203040A0B0C0D0E0F")
jsonTemplate.UpdateString("label","ehealth private key")

# Import the key.  The private key handle is returned on success.  Otherwise 0 is returned.
# If our only task for now is to simply import the key, we can ignore the returned handle, 
# other than to check for success/failure.  Otherwise, the handle can be used in other PKCS11 operations.
# This example just creates the key and does not use the returned handle.
keyHandle = pkcs11.ImportPrivateKey(privKey,jsonTemplate)
if (keyHandle == 0):
    print(pkcs11.LastErrorText)
else:
    print("key handle = " + str(keyHandle))
    print("Successfully imported a private key onto the HSM.")

pkcs11.Logout()
pkcs11.CloseSession()