HashCrack.py | Manual Dictionary Attack Using Python

#! /usr/bin/env python
# HashCrack.py
# Author: Abdul Fatir
# E-Mail: [email protected]

import hashlib
import optparse

def crackMD5Hash(_file,_hash):
    _wordlistfile = open(_file,"r")
    cracked = False
    for word in _wordlistfile:
        _purgedword = word.strip()
        md5 = hashlib.md5()
        md5.update(_purgedword)
        _wordhash = md5.hexdigest()
        if _wordhash == _hash:

            print "[+] Hash ("+_hash+ ") cracked: "+_purgedword
            cracked = True
            break
    if(not cracked):
        print "[-] Unable to crack the hash."

def crackSHA1Hash(_file,_hash):
    _wordlistfile = open(_file,"r")
    cracked = False
    for word in _wordlistfile:
        _purgedword = word.strip()
        sha1 = hashlib.sha1()
        sha1.update(_purgedword)
        _wordhash = sha1.hexdigest()
        if _wordhash == _hash:
            print "[+] Hash ("+_hash+ ") cracked: "+_purgedword
            cracked = True
            break
    if(not cracked):
        print "[-] Unable to crack the hash."



def Main():
    argparser = optparse.OptionParser("usage %prog -f <wordlist file> -p <hash to be cracked> -a <hash algorithm>")
    argparser.add_option('-f', dest='filename',type='string',help='Please specify a word list')
    argparser.add_option('-p', dest='passhash',type='string',help='Please specify a password hash to be cracked')
    argparser.add_option('-a', dest='hashalgo',type='string',help='Please specify a hash algorithm')
    (options, arg) = argparser.parse_args()
    if (options.filename == None) | (options.passhash == None) | (options.hashalgo == None):
        print argparser.usage
        exit(0)
    else:
        filename = options.filename
        passhash = options.passhash
        hashalgo = options.hashalgo
    print "[*] Cracking hash ..."
    if (hashalgo == 'MD5')|(hashalgo == 'md5'):
        crackMD5Hash(filename,passhash)
    elif (hashalgo == 'SHA1')|(hashalgo == 'sha1'):
        crackSHA1Hash(filename,passhash)

if __name__ == '__main__':
    Main()