Perl Requires Chilkat v11.0.0+

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. Chilkat2 Perl

use strict;
use warnings;
use Chilkat2;

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

my $jks = Chilkat2::JavaKeyStore->new;

# 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.
my $success = $jks->LoadFile('jksFilePassword', '/someDir/keyStore.jks');
if (!$success) {
    print $jks->LastErrorText, "\n";
    exit;
}

# Find out how many of each type of entry:
my $numTrustedCerts = $jks->NumTrustedCerts;
my $numPrivateKeys = $jks->NumPrivateKeys;

my $cert = Chilkat2::Cert->new;
my $alias = '';

# For each trusted certificate, access it by getting
# it as a cert object.  Also get the alias associated with the certificate.
print "Trusted Certs:\n";
my $i = 0;
while ($i < $numTrustedCerts) {
    $success = $jks->TrustedCertAt($i, $cert);
    print $jks->GetTrustedCertAlias($i), ': ', $cert->SubjectDN, "\n";
    $i = $i + 1;
}

my $privKey = Chilkat2::PrivateKey->new;
my $certChain = Chilkat2::CertChain->new;

# 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:\n";
$i = 0;
while ($i < $numPrivateKeys) {
    $jks->PrivateKeyAt('jksFilePassword', $i, $privKey);
    print $jks->GetPrivateKeyAlias($i), "\n";
    $jks->CertChainAt($i, $certChain);

    # The 1st certificate in the chain is the one associated with the private key.
    $certChain->CertAt(0, $cert);
    print $cert->SubjectDN, "\n";

    $i = $i + 1;
}