tprynn

module.exports = {
  hexStringToIntArray: function(str) {
    var res = []
    for(var i = 0; i < str.length; i += 2) {
      res.push(parseInt(str.substring(i, i+2), 16))
    }
    return res
  },

  byteArrayToHexString: function(array) {

tprynn

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

tprynn

#!/usr/env python

###############################################################################################################
## [Title]: linuxprivchecker.py -- a Linux Privilege Escalation Check Script
## [Author]: Mike Czumak (T_v3rn1x) -- @SecuritySift
##-------------------------------------------------------------------------------------------------------------
## [Details]: 
## This script is intended to be executed locally on a Linux box to enumerate basic system info and 
## search for common privilege escalation vectors such as world writable files, misconfigurations, clear-text
## passwords and applicable exploits. 

tprynn

List of libraries implementing SSL/TLS

Generic OpenSSL replacement

• LibreSSL
• BearSSL

Embedded

• mbedTLS (PolarSSL)
• MatrixSSL

tprynn

# Curve25519+ECDH implementation in Ruby
# Disclaimer: This code is for learning purposes ONLY. It is NOT secure.
# Tanner Prynn

require 'SecureRandom'
require 'digest'

# Fast Modular Exponentiation (base**exp % mod)
def modexp(base, exp, mod)
    prod = 1

tprynn

def md4(string)
  # functions
  mask = (1 << 32) - 1
  f = proc {|x, y, z| x & y | x.^(mask) & z}
  g = proc {|x, y, z| x & y | x & z | y & z}
  h = proc {|x, y, z| x ^ y ^ z}
  r = proc {|v, s| (v << s).&(mask) | (v.&(mask) >> (32 - s))}

  # initial hash
  a, b, c, d = 0x67452301, 0xefcdab89, 0x98badcfe, 0x10325476

tprynn

def sha1(string)
  # functions and constants
  mask = 0xffffffff
  s = proc{|n, x| ((x << n) & mask) | (x >> (32 - n))}
  f = [
    proc {|b, c, d| (b & c) | (b.^(mask) & d)},
    proc {|b, c, d| b ^ c ^ d},
    proc {|b, c, d| (b & c) | (b & d) | (c & d)},
    proc {|b, c, d| b ^ c ^ d},
  ].freeze

tprynn

/**********
 * SmartThings Arduino Shield On/Off
 * For use on Arduino Mega
 * author: github.com/tprynn
 * Attach Shield normally with switch on 2/3. 
 * Jumper pins:
 *  - 18 (Tx1) to Shield 3 (Rx)
 *  - 19 (Rx1) to Shield 2 (Tx)
 **********/

tprynn

/**********
 * SmartThings Arduino Shield Passthrough
 * For use on Arduino Mega
 * author: github.com/tprynn
 * Attach Shield normally with switch on 2/3. 
 * Jumper pins:
 *  - 18 (Tx1) to Shield 3 (Rx)
 *  - 19 (Rx1) to Shield 2 (Tx)
 **********/

tprynn

/* ISTA 303 Assignment 1
 * Tanner Prynn
 * communities.pde
 * Implements a signal-passing automata based on a random graph. 
 * Some notes: 
 * - Nodes are connected according to their relative distances. 
 * - Communication between nodes in the same community is shown in green,
 *       communication between different communities is shown in red. 
 * - Nodes are more likely to communicate within their own communities.
 * - Messages spread outward from their origination point.