(Node.js) ARC4 PRNG (Pseudo Random Number Generator)

Uses the ARC4 stream encryption algorithm as a pseudo random number generator.

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

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node21-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node21-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node21-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node21-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node21-linux64');
    }
} else if (os.platform() == 'darwin') {
    if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node21-mac-m1');
    } else {
        var chilkat = require('@chilkat/ck-node21-macosx');
    }
}

function chilkatExample() {

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

    var crypt = new chilkat.Crypt2();

    // Set the encryption algorithm to ARC4:	
    crypt.CryptAlgorithm = "arc4";

    // We want the encrypted output to be a hex-encoded string.
    crypt.EncodingMode = "hex";

    var key = "000102030405060708090A0B0C0D0E0F";
    var data = "12345678";

    // Key length is 128 bits in this example.
    crypt.KeyLength = 128;
    crypt.SetEncodedKey(key,"hex");

    // Generate 16 "random" 8-byte blocks, encoded as hex strings.
    // This example will generate the identical output each time
    // it is run.
    var cipherHex;
    var i;
    for (i = 0; i <= 15; i++) {
        cipherHex = crypt.EncryptStringENC(data);
        console.log(data);
        console.log(cipherHex);
        data = cipherHex;
    }


}

chilkatExample();