(JavaScript) Backup Windows Current User / Personal Certificates to a .zip

Demonstrates how to backup the certificates in the Windows registry-based Current User certificate store (in the "Personal" Logical Store as seen in certmgr.msc), to a zip archive. Certificates having an exportable private key are exported to .pfx files. Certificates with no private key, or with a non-exportable private key, are exported to .cer files.

Obviously, this example only runs on Windows computers.

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

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

var success = false;

var certStore = new CkCertStore();

var readOnly = true;
success = certStore.OpenCurrentUserStore(readOnly);
if (!success) {
    console.log(certStore.LastErrorText);
    return;
}

var pfxPassword = "secret";

var allSuccess = true;
var numSuccess = 0;

var zip = new CkZip();
zip.NewZip("qa_output/personalCerts.zip");

var certData = new CkBinData();
var sbFilename = new CkStringBuilder();

// Iterate over the certificates in the Current User store.
var cert = new CkCert();
var numCerts = certStore.NumCertificates;
var i = 0;
while (i < numCerts) {
    certStore.GetCert(i,cert);
    console.log("DN = " + cert.SubjectDN);

    sbFilename.SetString("cert");
    sbFilename.AppendInt(i+1);

    var bHasPrivateKey = cert.HasPrivateKey();
    if ((bHasPrivateKey == true) && (cert.PrivateKeyExportable == true)) {
        // Export to a .pfx
        success = cert.ExportToPfxBd(pfxPassword,true,certData);
        if (success == true) {
            sbFilename.Append(".pfx");
            zip.AddBd(sbFilename.GetAsString(),certData);
        }

    }
    else {
        // Export to a .cer
        success = cert.ExportCertDerBd(certData);
        if (success == true) {
            sbFilename.Append(".cer");
            zip.AddBd(sbFilename.GetAsString(),certData);
        }

    }

    if (success !== true) {
        allSuccess = false;
    }
    else {
        numSuccess = numSuccess+1;
    }

    i = i+1;
}

if (numSuccess > 0) {
    success = zip.WriteZipAndClose();
    if (success !== true) {
        console.log(zip.LastErrorText);
        allSuccess = false;
    }

}

console.log("All success = " + allSuccess);