(Node.js) Workaround for the deprecated Crypt2.SignString method

Shows how to replace the deprecated SignString method. (Chilkat is moving away from the use of CkByteData.)

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

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

var os = require('os');
if (os.platform() == 'win32') {  
  var chilkat = require('@chilkat/ck-node23-win64'); 
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node23-linux-arm');
    } else if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node23-linux-arm64');
    } else {
        var chilkat = require('@chilkat/ck-node23-linux-x64');
    }
} else if (os.platform() == 'darwin') {
  var chilkat = require('@chilkat/ck-node23-mac-universal');
}

function chilkatExample() {

    var crypt = new chilkat.Crypt2();

    var cert = new chilkat.Cert();
    // ...
    // Load the cert from a source such as a .pfx/.p12 file, smart card, USB token, Apple keychain, Windows certificate store, etc.
    // 
    var success = crypt.SetSigningCert(cert);

    // Sign the utf-8 byte representation of the text.
    crypt.Charset = "utf-8";

    var textToSign = "This is the text to sign";

    // ------------------------------------------------------------------------
    // The SignString method is deprecated:

    outData = crypt.SignString(textToSign);

    // ------------------------------------------------------------------------
    // Workaround.
    // (Chilkat is moving away from using CkByteData)

    crypt.EncodingMode = "base64";
    var base64_sig = crypt.SignStringENC(textToSign);

    // If you want the binary bytes of the signature decoded from base64.
    var bdSig = new chilkat.BinData();
    bdSig.AppendEncoded(base64_sig,"base64");

}

chilkatExample();