mirror of
https://github.com/in3rsha/sha256-animation
synced 2024-05-03 22:26:13 +02:00
90 lines
1.9 KiB
Ruby
90 lines
1.9 KiB
Ruby
# coding: utf-8
|
||
require_relative "sha256lib.rb"
|
||
|
||
# -----
|
||
# σ1(x)
|
||
# -----
|
||
# σ1(x) = ROTR(17, x) ^ ROTR(19, x) ^ SHR(10, x)
|
||
|
||
# -----
|
||
# Input
|
||
# -----
|
||
# default
|
||
x = 0b00000000000000000011111111111111 # 0b11101001101101011101101110100101
|
||
# argument passed
|
||
x = ARGV[0].to_i(2) if ARGV[0] # binary
|
||
# check arguments
|
||
if ARGV[0] && ARGV[0].size > 32
|
||
puts "We only operate on 32-bit words in SHA-256. Your x is #{ARGV[0].size} bits."; exit
|
||
end
|
||
|
||
# ---------
|
||
# Animation
|
||
# ---------
|
||
system "clear"
|
||
puts "x: #{bits(x)}"
|
||
puts " #{'-'*32}"
|
||
puts "ROTR 17: #{bits(x)}"
|
||
puts "ROTR 19: #{bits(x)}"
|
||
puts " SHR 10: #{bits(x)}"
|
||
puts " #{'-'*32}"
|
||
puts "σ1(x):"
|
||
sleep(0.1)
|
||
|
||
# ROTR(17, x)
|
||
(17+1).times do |i|
|
||
system "clear"
|
||
puts "x: #{bits(x)}"
|
||
puts " #{'-'*32}"
|
||
puts "ROTR 17: #{bits(rotr(i, x))}"
|
||
puts "ROTR 19: #{bits(x)}"
|
||
puts " SHR 10: #{bits(x)}"
|
||
puts " #{'-'*32}"
|
||
puts "σ1(x):"
|
||
sleep(0.1)
|
||
end
|
||
sleep(0.1)
|
||
|
||
# ROTR(19, x)
|
||
(19+1).times do |i|
|
||
system "clear"
|
||
puts "x: #{bits(x)}"
|
||
puts " #{'-'*32}"
|
||
puts "ROTR 17: #{bits(rotr(17, x))}"
|
||
puts "ROTR 19: #{bits(rotr(i, x))}"
|
||
puts " SHR 10: #{bits(x)}"
|
||
puts " #{'-'*32}"
|
||
puts "σ1(x):"
|
||
sleep(0.1)
|
||
end
|
||
sleep(0.1)
|
||
|
||
# SHR(10, x)
|
||
(10+1).times do |i|
|
||
system "clear"
|
||
puts "x: #{bits(x)}"
|
||
puts " #{'-'*32}"
|
||
puts "ROTR 17: #{bits(rotr(17, x))}"
|
||
puts "ROTR 19: #{bits(rotr(19, x))}"
|
||
puts " SHR 10: #{bits(shr(i, x))}"
|
||
puts " #{'-'*32}"
|
||
puts "σ1(x):"
|
||
sleep(0.1)
|
||
end
|
||
sleep(0.1)
|
||
|
||
# ROTR(17, x) ^ ROTR(19, x) ^ SHR(10, x)
|
||
32.downto(1) do |i|
|
||
system "clear"
|
||
puts "x: #{bits(x)}"
|
||
puts " #{'-'*32}"
|
||
puts "ROTR 17: #{bits(rotr(17, x))}"
|
||
puts "ROTR 19: #{bits(rotr(19, x))} XOR"
|
||
puts " SHR 10: #{bits(shr(10, x))} XOR"
|
||
puts " #{'-'*32}"
|
||
puts "σ1(x): #{bits(rotr(17, x) ^ rotr(19, x) ^ shr(10, x))[i-1..-1].rjust(32, " ")}"
|
||
sleep(0.1)
|
||
end
|
||
sleep(1)
|
||
|