KRzA/8-lab/szyfrowanie-krzywe.rb

#!/usr/bin/ruby
# coding: utf-8

###################################
#
# Marcin Woźniak
# s434812
#
###################################

load '../module.rb'

def main
  k = 400
  m = 7382908210982109821098
  u = SecureRandom.random_number(30..50)
  a,b,p,px,py,qx,qy,x = generowanieKluczyElGamalKrzywaEliptyczna(k)

  pubKey = [a,b,p,px,py,qx,qy]
  privKey = [a,b,p,px,py,qx,qy,x]

  puts "Klucz pub: #{pubKey.inspect}"
  puts "Klucz priv: #{privKey.inspect}"
  puts ""

  # BOB
  pm = algorytmKodowania(a,b,p,m,u)
  c1, c2 = szyfrowanieElGamala(a,b,p,u,px,py,qx,qy,pm[0],pm[1])

  # ALICE
  pmd = deKododwanieElGamala(a,b,p,c1[0],c1[1],c2[0],c2[1],x)
  d = algorytmDeSzyfrowania(pmd[0],pmd[1],u)
  puts "Deszyfowany punkt #{pmd.inspect}"
  puts "Dekodowana wiadomość #{d.inspect}"
  puts "\n\n---------------DANE DO ZADANIA----------------\nm = #{m} \na = #{a}\nb = #{b}\np = #{p}\npx = #{px}\npy = #{py}\nqx = #{qx}\nqy = #{qy}\nx = #{x}\nu = #{u}\nc1 = #{c1.inspect}\nc2 = #{c2.inspect}\n---------------------------------------------"
end

#puts generowanieKluczyElGamalKrzywaEliptyczna(2048).inspect
#puts wielokrotnoscPunktu(8,10,19,3,15,3).inspect
#puts algorytmSzyfrowania(8,10,19,29102901920190,29102901920199,50).inspect
#Puts algorytmDeSzyfrowania(8,10,19,12,17,50)

def prof
  p = 2609851093885672531604546618282965491657570314241630591985918197877686507680174634344306143
  a = 39746926425836399039258105470873774392122997653409098298906197201548801192257224379572749
  b = 357758004741884143788834147448966908166771657009672776346195608808675430720026748380346214
  px = 1752779174606701535340714968386694890708439813322474322723061659600059923305207235005963526
  py = 692575814560566162056537964537393338270737177090733420494053855669625561475768305447331017
  qx = 1859733423522807921537556587280278373018778723945077866335841026984756695533872750973383203
  qy = 2221415723705529494603362237538702810871518537067269952747134368932432130149327465664405538
  pmx = 1632858042793817840589568786779891550617922233361846684642975374690944475963011731075819538
  pmy = 1425948989523949818696633854257999800509690944329987427951625560436648299955576658406402833
  u = 30
  x = 365201008216944469945066035191785204730196821748386113747483955067753230980

  y = SecureRandom.random_number(0..liczenieOrd(p))

  c1 = wielokrotnoscPunktu(a,b,p,y,px,py)
  puts "c1 #{c1}"

  yq = wielokrotnoscPunktu(a,b,p,y,qx,qy)
  c2 = sumaPunktow(a,b,p,pmx,pmy,yq[0],yq[1])
  puts "c2 #{c2}"

  pmd = deKododwanieElGamala(a,b,p,c1[0],c1[1],c2[0],c2[1],x)
  d = algorytmDeSzyfrowania(pmd[0],pmd[1],u)

  puts "pmd #{pmd.inspect}"
  puts "d = #{d}"
end

#puts prof
puts main.inspect