React Native 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. React Native

import { Cert, CertChain, JavaKeyStore, PrivateKey } from '@chilkat/react-native'

function chilkatExample() {
  // This requires the Chilkat API to have been previously unlocked.
  // See Global Unlock Sample for sample code.

  const jks = new JavaKeyStore();

  // 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.
  try {
    jks.loadFile('jksFilePassword', '/someDir/keyStore.jks');
  } catch {
    console.log(jks.lastErrorText);
    return;
  }

  // Find out how many of each type of entry:
  const numTrustedCerts = jks.numTrustedCerts;
  const numPrivateKeys = jks.numPrivateKeys;

  const cert = new Cert();
  const alias = '';

  // For each trusted certificate, access it by getting
  // it as a cert object.  Also get the alias associated with the certificate.
  console.log('Trusted Certs:');
  let i = 0;
  while (i < numTrustedCerts) {
    jks.trustedCertAt(i, cert);
    console.log(`${jks.getTrustedCertAlias(i)}: ${cert.subjectDN}`);
    i++;
  }

  const privKey = new PrivateKey();
  const certChain = new CertChain();

  // 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.
  console.log('Private Keys:');
  i = 0;
  while (i < numPrivateKeys) {
    jks.privateKeyAt('jksFilePassword', i, privKey);
    console.log(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);
    console.log(cert.subjectDN);

    i++;
  }
}