Computes the minimal set of codes to attempt in order to open a GE Supra lockbox. This script will generate the codes necessary to perform a brute-force attack on a Supra lockbox. By default, the script outputs all 4 digit codes. Set the first argument to another value (e.g. "supra_codes.py 5") in order to generate codes with more or less digits…

supra_codes.py

"""
Computes the minimal set of codes to open a GE Supra lock box (such as http://www.amazon.com/Security-Keysafe-Cabinet-Assorted-Colors/dp/B000VL4TSW).
"""

import sys

def remove_values_from_list(the_list, val):

    the_list_copy = the_list[:]

    if val in the_list_copy:
        the_list_copy.remove(val)
        
    return the_list_copy

def get_permutations( possibles, length, current=None ):

    # Base case
    if length == 0:
        return

    permutations = []
    
    # Remove the existing item
    if current is not None:
        possibles = remove_values_from_list(possibles, current)
    
    # Get the list
    for p in possibles:
        
        if length > 1:
            
            # Recurse and get the permutations
            new_list = get_permutations(possibles, length - 1, p)
            
            # Add each permutation
            for new_list_entry in new_list:
                
                # Make the new permutation
                new_permutation = new_list_entry[:]
                new_permutation.append(p)
            
                # If the permutation is unique, then add it
                if sorted(new_permutation) not in permutations:
                    permutations.append( sorted(new_permutation) )
        else:
            permutations.append( [p] )
            
    return permutations
        
def perm_to_str( permutation ):
    
    s = ""
    
    for p in permutation:
        s = s + str(p)
        
    return s

def tostr(combo):
    print combo
    return "".join(combo)


# Determine the length to use from the CLI arguments
if len(sys.argv) > 1:
    code_length = int(sys.argv[1])
else:
    code_length = 4

possibles = [0,1,2,3,4,5,6,7,8,9]

for perm in get_permutations(possibles, code_length):
    print perm_to_str(perm)