Get the Certificate with Private Key from a Java KeyStore

See more Java KeyStore (JKS) Examples

var success = false;

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

// Most of the time a .jks contains one certificate with it's associated private key.
// (Similar to how a .pfx/.p12 usually contains a particular certificate with private key.)
// This example demonstrates how to get the certificate with private key such that it can be used
// by other Chilkat classes wherever a cert w/ private key is needed.
var jks = new CkJavaKeyStore();
var password = "secret";
success = jks.LoadFile(password,"qa_data/jks/test_secret.jks");
if (success == false) {
    console.log(jks.LastErrorText);
    return;
}

// Make sure we have a private key.
if (jks.NumPrivateKeys < 1) {
    console.log("No private key available.");
    return;
}

// -------------------------------------------------------------------------
// Get the certificate chain associated with the 1st (and probably only) private key in the JKS.

var chain = new CkCertChain();
success = jks.CertChainAt(0,chain);
if (success == false) {
    console.log(jks.LastErrorText);
    return;
}

var cert = new CkCert();
success = chain.CertAt(0,cert);
if (success == false) {
    console.log(chain.LastErrorText);
    return;
}

// Verify again that this cert has a private key.
if (cert.HasPrivateKey() !== true) {
    console.log("Certificate has no associated private key.");
    return;
}

// We now have the cert object with it's associated private key, and it can be used in other Chilkat classes where needed.
// For example..

var crypt = new CkCrypt2();
success = crypt.SetSigningCert(cert);
if (success == false) {
    console.log(crypt.LastErrorText);
    return;
}

// ...
// ...