ΘΕΜΑ: Σπάσιμο κωδικού με Brute Force Attack

# Importing libraries
import re
import locale
 
# Commify values
def number_format(num, places=0): 
    locale.setlocale(locale.LC_NUMERIC, "") 
    return locale.format("%.*f", (places, num), True)
 
# Initialize values
posChars, comb, seconds, minutes = 0, 0, 0, 0
hours, days, years, prefix, suffix = 0, 0, 0, 0, 'seconds'
lows = re.compile('[a-z]')
highs = re.compile('[A-Z]')
nums = re.compile('[0-9]')
wilds = re.compile('[!,@,#,$,%,^,&,*,?,_,~,-,(,),[,]]')
 
# Ask user for input password (min length 3)
while True:
    word = raw_input('Check how secure is your password: ')
    if(len(word) > 2):
        break
    print 'Your password is way too weak, only ' + str(len(word)) + ' characters long!'
 
# Keep track of characters used
if(lows.findall(word)):
    posChars += 26
if(highs.findall(word)):
    posChars += 26
if(nums.findall(word)):
    posChars += 10
if(wilds.findall(word)):
    posChars += 13
 
# Print statistics
comb = posChars**len(word)
print 'Your password is ' + str(len(word)) + ' characters long and has ' + str(number_format(comb)) + ' combinations.'
seconds = comb/2400000000.0 # Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40 GHz
if(seconds <= 1):
    prefix = seconds
    print 'It would take {0} {1} for a desktop pc to crack your password.'.format(number_format(prefix, 7).rstrip('0'), suffix)
else:
    seconds = int(round(seconds, 0))
    if(seconds > 60):
        minutes = seconds / 60
        seconds = seconds % 60
        prefix = minutes
        suffix = 'minutes'
        if(minutes > 60):
            hours = minutes / 60
            minutes = minutes % 60
            prefix = hours
            suffix = 'hours'
            if(hours > 24):
                days = hours / 24
                hours = hours % 24
                prefix = days
                suffix = 'days'
                if(days > 365):
                    years = days / 365
                    days = days % 365
                    prefix = years
                    suffix = 'years'
    print 'It would take about {0} {1} for a desktop pc to crack your password.'.format(number_format(prefix), suffix)