(Node.js) Duplicate openssl pkcs12 –export –in certfile.cer –inkey certfile.key –out certfile.pfx

How to create a PKCS12 (.p12 or .pfx) from a certificate file and private key file: Demonstrates how to duplicate this OpenSSL command:

Duplicate openssl pkcs12 –export –in certfile.cer –inkey certfile.key –out certfile.pfx

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

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node21-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node21-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node21-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node21-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node21-linux64');
    }
} else if (os.platform() == 'darwin') {
    if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node21-mac-m1');
    } else {
        var chilkat = require('@chilkat/ck-node21-macosx');
    }
}

function chilkatExample() {

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

    var success;

    var pkey = new chilkat.PrivateKey();

    // Load the private key from the file.
    success = pkey.LoadAnyFormatFile("certFile.key","");
    if (success !== true) {
        console.log(pkey.LastErrorText);
        return;
    }

    var cert = new chilkat.Cert();
    // The LoadFromFile method auto-recognizes the format...
    success = cert.LoadFromFile("certfile.cer");
    if (success !== true) {
        console.log(cert.LastErrorText);
        return;
    }

    // We'll need a cert chain object to create the PKCS12, so get it
    // from the cert.  
    // certChain: CertChain
    var certChain;
    certChain = cert.GetCertChain();
    if (!cert.LastMethodSuccess) {
        console.log(cert.LastErrorText);
        return;
    }

    // Create the PFX object, add the cert and private key, and write to a .pfx file.
    var pfx = new chilkat.Pfx();

    // The cert(s) are automatically added in the call to AddPrivateKey
    success = pfx.AddPrivateKey(pkey,certChain);
    if (success !== true) {
        console.log(pfx.LastErrorText);
        return;
    }

    // Write the .pfx to a file.
    var password = "myPassword";
    success = pfx.ToFile(password,"certfile.pfx");
    if (success !== true) {
        console.log(pfx.LastErrorText);
        return;
    }

    console.log("Success.");

}

chilkatExample();