CkPython

PKCS11 Import an Existing RSA Public Key onto the HSM

See more PKCS11 Examples

Demonstrates how to import an existing RSA Public Key onto a smart card or token.

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

CkPython

import sys
import chilkat

success = False

# 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 = chilkat.CkPkcs11()

# 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.put_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()

# Generate a new 2048-bit RSA key.
rsa = chilkat.CkRsa()
privKey = chilkat.CkPrivateKey()
success = rsa.GenKey(2048,privKey)
if (success == False):
    print(rsa.lastErrorText())
    sys.exit()

# Get the public key information as XML, so we can access the modulus and exponent.
xml = chilkat.CkXml()
pubKey = chilkat.CkPublicKey()
privKey.ToPublicKey(pubKey)
xml.LoadXml(pubKey.getXml())

attrs = chilkat.CkJsonObject()
# Specify the type of object, and the type of key.
attrs.UpdateString("class","CKO_PUBLIC_KEY")
attrs.UpdateString("key_type","CKK_RSA")
# Add an optional label if desired.
attrs.UpdateString("label","RSA Public Key 1")
# Allow the key to be use for verify, wrapping, and encryption operations.
attrs.UpdateBool("verify",True)
attrs.UpdateBool("wrap",True)
attrs.UpdateBool("encrypt",True)

# Make this a session-only public key.
# To store the public key on the token so that it persists after the PKCS11 session, set token = True.
attrs.UpdateBool("token",False)

# Provide the RSA public key material
attrs.UpdateString("modulus",xml.getChildContent("Modulus"))
attrs.UpdateString("public_exponent",xml.getChildContent("Exponent"))

# Create the RSA public key.
# Returns the PKCS11 object handle of the created key.
objHandle = pkcs11.CreatePkcs11Object(attrs)
if (objHandle == 0):
    print(pkcs11.lastErrorText())
    print("Failed.")
else:
    print("PKCS11 object handle = " + str(objHandle))
    print("Successfully imported an RSA key..")

pkcs11.Logout()
pkcs11.CloseSession()