CkPython

Load Java KeyStore and Access Contents

See more Java KeyStore (JKS) Examples

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. CkPython

import sys
import chilkat

success = False

# 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 == False):
    print(jks.lastErrorText())
    sys.exit()

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

cert = chilkat.CkCert()

# 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 :
    success = jks.TrustedCertAt(i,cert)
    print(jks.getTrustedCertAlias(i) + ": " + cert.subjectDN())
    i = i + 1

privKey = chilkat.CkPrivateKey()
certChain = chilkat.CkCertChain()

# 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 :
    jks.PrivateKeyAt("jksFilePassword",i,privKey)
    print(jks.getPrivateKeyAlias(i))
    jks.CertChainAt(i,certChain)

    # The 1st certificate in the chain is the one associated with the private key.
    certChain.CertAt(0,cert)
    print(cert.subjectDN())

    i = i + 1