Cracking hashes with Python

TheRandomPast . wishingforsam at gmail.com
Tue Nov 26 12:46:18 CET 2013


Hi,

Thanks. From what I've been able to find online I've created a dictionary
file with words and the words I know the hash values to be and I'm trying
to get it to use that however when I run this I get no errors but it
doesn't do anything, like ask me to input my hash value. Am i just being
stupid?

>import sys, re, hashlib

>def chklength(hashes):
  >  if len(hashes) != 32:
  >      print '[-] Improper length for md5 hash.'
  >  sys.exit(1)

>def dict_check():
  >  md5hashes = raw_input('\nPlease enter the Hash value to be decrypted:
')
  >  chklength(md5hashes)


>wordlist = open('C:\dictionary.txt', r)
>try:
>    words = wordlist
>except(IOError):
>  print "[-] Error: Check the path.\n"
>sys.exit(1)

>words = words.readlines()
>print "\n",len(words),"words loading…"

>for word in words:
>    hash = hashlib.md5(word[:-1])
>    value = hash.hexdigest()

>if hashes == value:
>    print "[+] Password is:"+word,"\n"
>sys.exit(0)


>print('\n1 – Dictionary Check')
>print('2 – Exit')
>selection = raw_input('\nSelect an option from above: ')
>sys.stdout.flush()

>if selection == "1":
>    dict_attack()
>    pass
>elif selection == "2":
>    sys.exit(0


On Tue, Nov 26, 2013 at 10:39 AM, Chris Angelico <rosuav at gmail.com> wrote:

> On Tue, Nov 26, 2013 at 9:30 PM, TheRandomPast <wishingforsam at gmail.com>
> wrote:
> > and I've started the second part, the part to crack them. If anyone
> could tell me where I'd find more information on this subject and how to
> crack them that would be great. As I print them on screen I was thinking I
> could write a program that allows the md5 to be entered and then cracked.
>
> Okay. This is where the irreversible nature of hash functions comes
> into play. You can't actually take the hash and go back to the
> password; what you have to do is try lots of passwords and find one
> that has the right hash.
>
> Python has a data structure that lets you store keys and values, and
> then see whether the key you're looking for is there. See if you can
> use that.
>
> ChrisA
> --
> https://mail.python.org/mailman/listinfo/python-list
>
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