Evan Lawrence-Hurt evanlh

## obfuscation.org

      
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                evanlh
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              April 8, 2017 19:36
            
          
    Adam Harvey - CV Dazzle and HyperFace

Lakshmi Subramanian - Entrupy startup


  Microscopic photos of brand handbag textures & parts to authenticate

Siddharth Garg, NYU


  Integrated circuits can be depackaged & delayered to gain information that is intended to be private
    
      Potential solution: Camouflaging. Dummy contacts camouflage Boolean functionality.
    
  
(Pictured circuit could implement XAND/NAND or NOR but reverser couldn’t determine.)

  Camouflaging has a per-gate cost.
  Small # of judicioously selected gates is camouflaged, attacker needs > 1000s of years to decamouflage.


## lSys.ml
(*
 Spitballing...
  L system = {
    alphabet: set of symbols, terminals and variables,
    start: initial list of symbols,
    rules: set of tuples from a symbol to a list of symbols
  }
*)

type symbol = Symbol of string;;

## gist:4d95d81a1e561417c83a397ce24ee650
tabs--
node count - 26415
private usage - 415 mb
current bytes - 153770302 = 146mb
415 - 146mb = 269mb


drawers--
node count - 10772
private usage - 335 mb

## init.el
;; -*- emacs-lisp -*-
;;
;; The majority of this config is from Jack Rusher-- https://github.com/jackrusher/dotfiles
;; (Minor personal changes made by me -- @evanlh)
;;
;; I like my emacs to share as many behaviors as possible with OS
;; X and bash, to which end I've customized all three.

(require 'cl) ;; Common Lisp functions

## git and npm behind firewall.txt
git config --global http.sslVerify false
npm config set strict-ssl false

~/.bowerrc
{
  "directory": "bower_components",
  "registry": "http://bower.herokuapp.com",
  "strict-ssl": false
}

## kontor-test.js
/**
 * Creates a new Cart object, with an optional pricing parameter.
 * @class
 * @param {object} pricing
 */
function Cart(prices){
    this.total = 0,
    this.pricing = {},
    this.contents = {};

## ThomasTest.js
function Grid(M, N, mapFunction){
  this.grid = [];
  this.M = M;
  this.N = N;

  if (M < 1 || N <1) throw new Error('Grid dimensions must be greater than 0');

  if (typeof mapFunction == 'function'){
    this.init(mapFunction);
  }

## layout.html
<!DOCTYPE html>
<html lang="en" class="mdl-js"><head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="description" content="A front-end template that helps you build fast, modern mobile web apps.">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Material Design Lite</title>

    <!-- Add to homescreen for Chrome on Android -->
    <meta name="mobile-web-app-capable" content="yes">

## Amplify test
(ns amplifytest.core)

(defn headerval [str]
  (let [intvals (map int (.getBytes str))
        len (count intvals)
        v (reduce + (map-indexed (fn [i x] (* (Math/pow 26 (- len 1 i)) (- x 64))) intvals))]
    (int v)))

(defn -main [& args]
  (doseq [line (line-seq (java.io.BufferedReader. *in*))]

## entropy3.clj
;; Homework III

;; first, some useful functions from the standard library...

(frequencies [1 2 1 2 1 2 3 4 2 3 4 5])
;; => {1 3, 2 4, 3 2, 4 2, 5 1}
;; a convenience function that returns a map from each value in the
;; input to the count of its occurence

;; Evan, here's the python equivalent:
	(*
	Spitballing...
	L system = {
	alphabet: set of symbols, terminals and variables,
	start: initial list of symbols,
	rules: set of tuples from a symbol to a list of symbols
	}
	*)

	type symbol = Symbol of string;;
	tabs--
	node count - 26415
	private usage - 415 mb
	current bytes - 153770302 = 146mb
	415 - 146mb = 269mb


	drawers--
	node count - 10772
	private usage - 335 mb
	;; -- emacs-lisp --
	;;
	;; The majority of this config is from Jack Rusher-- https://github.com/jackrusher/dotfiles
	;; (Minor personal changes made by me -- @evanlh)
	;;
	;; I like my emacs to share as many behaviors as possible with OS
	;; X and bash, to which end I've customized all three.

	(require 'cl) ;; Common Lisp functions
	git config --global http.sslVerify false
	npm config set strict-ssl false

	~/.bowerrc
	{
	"directory": "bower_components",
	"registry": "http://bower.herokuapp.com",
	"strict-ssl": false
	}
	/**
	* Creates a new Cart object, with an optional pricing parameter.
	* @class
	* @param {object} pricing
	*/
	function Cart(prices){
	this.total = 0,
	this.pricing = {},
	this.contents = {};
	function Grid(M, N, mapFunction){
	this.grid = [];
	this.M = M;
	this.N = N;

	if (M < 1 \|\| N <1) throw new Error('Grid dimensions must be greater than 0');

	if (typeof mapFunction == 'function'){
	this.init(mapFunction);
	}
	<!DOCTYPE html>
	<html lang="en" class="mdl-js"><head>
	<meta charset="utf-8">
	<meta http-equiv="X-UA-Compatible" content="IE=edge">
	<meta name="description" content="A front-end template that helps you build fast, modern mobile web apps.">
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<title>Material Design Lite</title>

	<!-- Add to homescreen for Chrome on Android -->
	<meta name="mobile-web-app-capable" content="yes">
	(ns amplifytest.core)

	(defn headerval [str]
	(let [intvals (map int (.getBytes str))
	len (count intvals)
	v (reduce + (map-indexed (fn [i x] (* (Math/pow 26 (- len 1 i)) (- x 64))) intvals))]
	(int v)))

	(defn -main [& args]
	(doseq [line (line-seq (java.io.BufferedReader. in))]
	;; Homework III

	;; first, some useful functions from the standard library...

	(frequencies [1 2 1 2 1 2 3 4 2 3 4 5])
	;; => {1 3, 2 4, 3 2, 4 2, 5 1}
	;; a convenience function that returns a map from each value in the
	;; input to the count of its occurence

	;; Evan, here's the python equivalent: