(Node.js) Get Certificate Public Key from PEM

Demonstrates how to load a PEM file containing a certificate and access the public key.

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;

    var cert = new chilkat.Cert();

    success = cert.LoadFromFile("qa_data/pem/my_cert.pem");
    if (success == false) {
        console.log(cert.LastErrorText);
        return;
    }

    var pubkey = new chilkat.PublicKey();
    cert.GetPublicKey(pubkey);

    // Examine the public key as XML..
    console.log(pubkey.GetXml());

}

chilkatExample();