(CkPython) Load Java KeyStore and Access Contents

Loads a Java keystore file and iterates over the contents. A Java keystore (.jks) file can contain one or more trusted root certificate entries and/or one or more private key entries. Each private key entry includes an associated certificate chain.

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import sys
import chilkat

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

jks = chilkat.CkJavaKeyStore()

# Load the Java keystore from a file.  The JKS file password is used
# to verify the keyed digest that is found at the very end of the keystore.
# It verifies there has been no tampering with the file.
success = jks.LoadFile("jksFilePassword","/someDir/keyStore.jks")
if (success != True):
    print(jks.lastErrorText())
    sys.exit()

# Find out how many of each type of entry:
numTrustedCerts = jks.get_NumTrustedCerts()
numPrivateKeys = jks.get_NumPrivateKeys()

# For each trusted certificate, access it by getting
# it as a cert object.  Also get the alias associated with the certificate.
print("Trusted Certs:")
i = 0
while i < numTrustedCerts :
    # cert is a CkCert
    cert = jks.GetTrustedCert(i)
    print(jks.getTrustedCertAlias(i) + ": " + cert.subjectDN())

    i = i + 1

# For each private key entry, get the private key and
# the associated certificate chain.
# Each private key is password protected.  Usually it is the same
# password as used for the keyed digest of the entire JKS.  
# However, this does not have to be.  The password is passed
# here to handle the possibility of each private key requiring
# a different password.
print("Private Keys:")
i = 0
while i < numPrivateKeys :
    # privKey is a CkPrivateKey
    privKey = jks.GetPrivateKey("jksFilePassword",i)
    print(jks.getPrivateKeyAlias(i))
    # certChain is a CkCertChain
    certChain = jks.GetCertChain(i)

    # The 1st certificate in the chain is the one associated with the private key.
    # cert is a CkCert
    cert = certChain.GetCert(0)
    print(cert.subjectDN())

    i = i + 1