(Node.js) Iterate Keys and Certs in PEM

Demonstrates how to access each of the private keys and certs contained within a PEM.

Note: This example requires Chilkat v11.0.0 or greater.

Install Chilkat for Node.js and Electron using npm at Chilkat npm packages for Node.js Chilkat npm packages for Electron on Windows, Linux, MacOS

var os = require('os');
if (os.platform() == 'win32') {  
  var chilkat = require('@chilkat/ck-node23-win64'); 
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node23-linux-arm');
    } else if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node23-linux-arm64');
    } else {
        var chilkat = require('@chilkat/ck-node23-linux-x64');
    }
} else if (os.platform() == 'darwin') {
  var chilkat = require('@chilkat/ck-node23-mac-universal');
}

function chilkatExample() {

    var success = false;

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

    var pem = new chilkat.Pem();

    // Load the PEM from a file.
    // If the PEM is encrypted, provide a password.  Otherwise pass an empty string for the password.
    var password = "myPassword";
    success = pem.LoadPemFile("../myPemFiles/myPem.pem",password);
    if (success == false) {
        console.log(pem.LastErrorText);
        return;
    }

    // Note: If the app already has the PEM pre-loaded in a string variable, then load it 
    // by calling LoadPem instead.  
    var pemContent = "... the PEM contents ...";
    success = pem.LoadPem(pemContent,password);
    // Check for success as before..

    // Iterate over the private keys.
    var numPrivateKeys = pem.NumPrivateKeys;
    var i = 0;

    var privKey = new chilkat.PrivateKey();
    while (i < numPrivateKeys) {
        pem.PrivateKeyAt(i,privKey);
        console.log("Private Key " + i + " is " + privKey.BitLength + " in length");
        i = i+1;
    }

    // Iterate over the certificates.
    var cert = new chilkat.Cert();
    var numCerts = pem.NumCerts;
    i = 0;
    while (i < numCerts) {
        pem.CertAt(i,cert);
        console.log("Certificate " + i + " : " + cert.SubjectDN);
        i = i+1;
    }


}

chilkatExample();