benjholla

/**
 * A quine-relay with the state of a Linear Feedback Shift Register embedded
 * in and updated by one shift operation for each successive output quine.
 * 
 * @author Ben Holland
 */
public class LFSRQuineRelay {
    public static void main(String[] args) {
        // initialize the register, any non-zero start state is valid
        boolean[] register = {true, false, false, true, false, false, true, false, true, true, true};

benjholla

public class NondeterministicOuroboros_0 {
    public static void main(String[] args) {
        Long id = 0L;
        char quote = 34;
        String[] code = {
"public class NondeterministicOuroboros_0 {",
"    public static void main(String[] args) {",
"        Long id = 0L;",
"        char quote = 34;",
"        String[] code = {",

benjholla

import java.math.BigInteger;

public class ExpandedDataFlowLaunder {

	public static void main(String args[]) {
		String sensitive = toHex("SECRET_DATA");
		leak(launder(sensitive));
	}

	// a method that should never get sensitive data...

benjholla

public class ExpandedExceptionalLaunder {

	public static void main(String[] args) {
		String sensitive = "SECRET_DATA";
		try {
			pilfer(sensitive);
		} catch (Exception e){
    		leak(errorReport(e));
		}
	}

benjholla

import java.lang.reflect.Method;
import java.util.Random;

public class PrivateMethodReflection {

	public static void main(String[] args) throws Exception {

		Person person = new Person("Bob");
		System.out.println("Name: " + person.getName());

benjholla

package sendmail_crackaddr;

/**
 * A Java implementation of the toy example of the Sendmail Crackaddr flaw created by Thomas Dullien
 * Source: https://bytebucket.org/mihaila/bindead/wiki/resources/crackaddr-talk.pdf
 * 
 * Outputs: 
 * Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 200
 *  at sendmail_crackaddr.SendmailCrackaddr.copyIt(SendmailCrackaddr.java:57)
 *  at sendmail_crackaddr.SendmailCrackaddr.main(SendmailCrackaddr.java:20)

benjholla

public class UnicodeEvil {

	public static void main(String[] args) {
		print("Hello");
		
		/*
		 * TODO: print World in unicode
		 * \u002A\u002F\u0070\u0072\u0069\u006E\u0074\u0028\u0022\u0043\u0072\u0075\u0065\u006C\u0022\u0029\u003B\u002F\u002A
		 */
		print("World");

benjholla

public class InsideOut {

	public static void main(String[] args){
		System.out.println(new OutsideIn().toString());
	}
	
	public InsideOut() {}
	
	@Override
	public String toString(){

benjholla

#!/usr/bin/python

import sys
import getopt
import urllib2

# define hexEncode function
hexEncode = lambda x:"".join([hex(ord(c))[2:].zfill(2) for c in x])

def main(argv):

benjholla

/**
 * Playing around with inner classes and control flow
 * @author Ben Holland
 */
public class ExampleClass {

	// static initializer
	static {
		// anonymous inner class
		new ExampleClass() {