mnicky

Symmetric Encryption

The only way to encrypt today is authenticated encryption, or "AEAD". ChaCha20-Poly1305 is faster in software than AES-GCM. AES-GCM will be faster than ChaCha20-Poly1305 with AES-NI. Poly1305 is also easier than GCM for library designers to implement safely. AES-GCM is the industry standard.

Use, in order of preference:

1. The NaCl/libsodium default

mnicky

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

   Undercover communication

   It should be obvious by now, that the only way to communicate 
   stealthily and securely is to avoid raising suspicion to the 
   level at which the authorities might consider it worthwhile 
   to put you under active surveillance (e.g., park a van with 
   TEMPEST equipment by your apartment). 

mnicky

#!/bin/bash

RESET="\e[0m"
BLACK="\e[0;30m"
RED="\e[0;31m"
GREEN="\e[0;32m"
YELLOW="\e[0;33m"
BLUE="\e[0;34m"
MAGENTA="\e[0;35m"
CYAN="\e[0;36m"

mnicky

"""A simple implementation of a greedy transition-based parser. Released under BSD license."""
from os import path
import os
import sys
from collections import defaultdict
import random
import time
import pickle

SHIFT = 0; RIGHT = 1; LEFT = 2;

mnicky

#lang r5rs

(define-syntax var
  (syntax-rules ()
    ((_ x) (vector x))))

(define-syntax var?
  (syntax-rules ()
    ((_ x) (vector? x))))

mnicky

;Lisp in Lisp in Golomb forests.  Includes use of linked lists.
;Based on Paul Graham's version of McCarthy's paper and code.
;Uses only eq, cond, atom, quote, cons, car, and cdr.

(defun null. (x)
  (eq x '()))

(defun and. (x y)
  (cond (x 
	 (cond (y 't)

mnicky

(ns fsm
  (:refer-clojure :exclude [==])
  (:use [clojure.core.logic]))

;; Encoding a Finite State Machine and recognizing strings in its language in Clojure core.logic

;; We will encode the following FSM:
;;
;;  (ok) --+---b---> (fail) 
;;   ^     |

mnicky

;; outlet code for implementing traditional macro expansion

;; macros

(define (expand form)
  (cond
   ((variable? form) form)
   ((literal? form) form)
   ((macro? (car form))
    (expand ((macro-function (car form)) form)))

mnicky

; source: http://okmij.org/ftp/Scheme/sokuza-kanren.scm


;                    Quick miniKanren-like code 
;
; written at the meeting of a Functional Programming Group
; (Toukyou/Shibuya, Apr 29, 2006), as a quick illustration of logic
; programming.  The code is really quite trivial and unsophisticated:
; it was written without any preparation whatsoever. The present file
; adds comments and makes minor adjustments.