Can anyone help me identify and decode this string? [closed]

Question

Below is a part of a code that I reversed with repy2exe and I want to understand what it does and especially how to decode the value in the "secret" variable:

using = [
    'Mg==\n',
    'MTA1\n',
    'Nzg=\n',
    'ODI=\n',
    'NzM=\n',
    'Njg=\n',
    'Nzk=\n',
    'OTg=\n',
    'ODg=\n',
    'Njc=\n',
    'Njg=\n',
    'ODM=\n',
    'MTk=\n',
    'MTc=\n',
    'MTY=\n',
    'MjI=\n']
secret = 'BZh91AY&SY\xf2\xbfIg\x00\x00\x01\x89\x80\x05\x002\x00\x08\x00 \x00!\x80\x0c\x01[6\xe2\xeeH\xa7\n\x12\x1eW\xe9,\xe0'
pas = raw_input('Please Enter The Password:')
a = ''
for i in range(len(pas)):
    a += pas[i]

coun = 0
win = 16 

Answer 1

Although the code is clearly incomplete, some things can be guessed:

1) The strings ending with == are most likely base64-encoded (Base64 uses = for padding). Let's try to decode them.

>>>x = [a.decode('base64') for a in using]
'2', '105', '78', '82', '73', '68', '79', '98', '88', '67', '68', '83', '19', '17', '16', '22']

So they decode to string representations of some numbers. Not sure if this means anything, we need to see how they're used.

2) The BZ sequence hints at Bzip2. We can try to decompress it as such:

>>> import bz2
>>> bz2.decompress(secret)
'base64'

And we're back to square one.