Node.js

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

See more OpenSSL Examples

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

Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

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

    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();