from __future__ import with_statement
import hashlib
import sys

doubleHash = sys.argv[1]

print “Provo a scassare ” + doubleHash + “\n”

with open(sys.argv[2],”r”) as dict:
for line in dict:

hashTest = hashlib.md5(hashlib.md5(line.rstrip()).hexdigest()).hexdigest()

if hashTest == doubleHash:
print line.rstrip() + ” ” + doubleHash

sys.exit(0)
Ecco i risultati:
valinor:Desktop feanor$ time ./crack.py b415a0b7e721a8c1ebac6bc01604e16c ./dic-0294.txt
Provo a scassare b415a0b7e721a8c1ebac6bc01604e16c

Karntnerstrasse-Rotenturmstrasse b415a0b7e721a8c1ebac6bc01604e16c

real 0m5.594s
user 0m5.355s
sys 0m0.078s

Ecco i risultato con la stessa hash doppia e lo scriptino in Ruby :
valinor:Desktop feanor$ time ./cruby.rb b415a0b7e721a8c1ebac6bc01604e16c ./dic-0294.txt
Scassando §b415a0b7e721a8c1ebac6bc01604e16c§ con ./dic-0294.txt
Karntnerstrasse-Rotenturmstrasse b415a0b7e721a8c1ebac6bc01604e16c

real 0m6.255s
user 0m5.861s
sys 0m0.097s

Vince Python!

real 0m24.703s
user 0m24.588s
sys 0m0.052s
ordeal@debian:~/hackz$ time ./md5doublecrack 25869800ff2ef3b940b9358d66ff59f7 all.lst
Match found with entry prova

real 0m20.898s
user 0m20.688s
sys 0m0.176s

Per non parlare di un not found:
ordeal@debian:~/hackz$ time ruby1.9 ./md5doublecrack.rb 25869800ff2ef3b940b9358d66ff59f8 all.lst
Scassando 25869800ff2ef3b940b9358d66ff59f8 con all.lst

real 2m45.976s
user 2m36.992s
sys 0m0.304s
ordeal@debian:~/hackz$ time ./md5doublecrack 25869800ff2ef3b940b9358d66ff59f8 all.lst
Sorry,no match found

real 2m18.092s
user 2m11.796s
sys 0m0.252s

#!/usr/bin/ruby
require ‘digest/md5′
aFile = File.new(ARGV[1], “r”)
myhash=ARGV[0]
a=0
puts “Scassando §#{myhash}§ con #{ARGV[1]}”
aFile.each_line {|line| line.chomp!
testhash=Digest::MD5.hexdigest(Digest::MD5.hexdigest(line))
if testhash==myhash
puts “#{line} #{testhash}”
Kernel.exit()
end
}
aFile.close

real 0m40.034s
user 0m38.990s
sys 0m0.668s

contro

real 1m4.663s
user 1m4.080s
sys 0m0.112s

#!/usr/bin/ruby
require ‘digest/md5′
aFile = File.new(ARGV[1], “r”)
myhash=ARGV[0]
a=0
puts “Scassando §#{myhash}§ con #{ARGV[1]}”
aFile.each_line {|line| line.chomp!
testhash=Digest::MD5.hexdigest(Digest::MD5.hexdigest(line))
a=a+1
if a.modulo(1024)==0 then
puts “#{a/1024}k: #{line} #{testhash} #{myhash}”
end
if testhash==myhash
oFile=File.new(“pass.dat”, “w+”)
oFile.puts “#{line} #{testhash}”
oFile.close
Kernel.exit()
end
}
aFile.close