(Node.js) Generate RSA Key and Export to Encrypted PEM

Node.js sample showing how to generate an RSA key and export to encrypted PEM.

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 success = false;

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

    var rsa = new chilkat.Rsa();

    // Generate a 1024-bit key.  Chilkat RSA supports
    // key sizes ranging from 512 bits to 4096 bits.
    var privKey = new chilkat.PrivateKey();
    success = rsa.GenKey(1024,privKey);
    if (success == false) {
        console.log(rsa.LastErrorText);
        return;
    }

    var strEncPem;
    strEncPem = privKey.GetPkcs8EncryptedPem("myPassword");

    // You now have the private key in an encrypted format,
    // which may be (for example) saved to a database.

    console.log(strEncPem);

}

chilkatExample();