Create an Opaque Signature with a Separate Private Key

See more MIME Examples

Demonstrates the Chilkat Mime.ConvertToSignedPk method, which creates an opaque signature using a signer certificate and its separately supplied private key. The first argument is the Cert and the second is the PrivateKey.

Note: The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

    var mime = new chilkat.Mime();
    success = mime.SetBodyFromPlainText("This message will be signed.");
    if (success == false) {
        console.log(mime.LastErrorText);
        return;
    }

    //  Load the certificate and its private key separately.
    var cert = new chilkat.Cert();
    success = cert.LoadFromFile("qa_data/signer.cer");
    if (success == false) {
        console.log(cert.LastErrorText);
        return;
    }

    var privKey = new chilkat.PrivateKey();
    success = privKey.LoadPemFile("qa_data/signer_privkey.pem");
    if (success == false) {
        console.log(privKey.LastErrorText);
        return;
    }

    //  Create an opaque signature when the certificate and private key are supplied separately.  The
    //  1st argument is the signer certificate and the 2nd is its private key.
    success = mime.ConvertToSignedPk(cert,privKey);
    if (success == false) {
        console.log(mime.LastErrorText);
        return;
    }

    success = mime.SaveMime("qa_output/signed_opaque.eml");
    if (success == false) {
        console.log(mime.LastErrorText);
        return;
    }

    console.log("Message converted to an opaque signed message.");

}

chilkatExample();