Node.js

Export Digital Certificate's Public Key

See more Certificates Examples

The ExportPublicKey method can be called to get a certificate's public key. It can then be saved to any of a number of formats: (1) OpenSSL DER, (2) OpenSSL PEM, (3) RSA DER, (4) XML. Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

    var cert = new chilkat.Cert();

    // LoadFromFile will load virtually any certificate format file.
    // It will auto-recognize the format and load appropiately.
    success = cert.LoadFromFile("/Users/chilkat/testData/cer/chilkat.cer");
    if (success == false) {
        console.log(cert.LastErrorText);
        return;
    }

    // Get the public key:
    var pubkey = new chilkat.PublicKey();
    cert.GetPublicKey(pubkey);

    // Save to various formats:
    success = pubkey.SaveDerFile(false,"/Users/chilkat/testData/pubkeys/chilkat_pkcs8.der");
    if (success !== true) {
        console.log(pubkey.LastErrorText);
        return;
    }

    success = pubkey.SavePemFile(false,"/Users/chilkat/testData/pubkeys/chilkat.pem");
    if (success !== true) {
        console.log(pubkey.LastErrorText);
        return;
    }

    success = pubkey.SaveDerFile(true,"/Users/chilkat/testData/pubkeys/chilkat_pkcs1.der");
    if (success !== true) {
        console.log(pubkey.LastErrorText);
        return;
    }

    success = pubkey.SaveXmlFile("/Users/chilkat/testData/pubkeys/chilkat.xml");
    if (success !== true) {
        console.log(pubkey.LastErrorText);
        return;
    }

    console.log("Public key exported to all file formats.");

}

chilkatExample();