【愚公系列】2021年12月 攻防世界-简单题-REVERSE-003(python-trade)

uncompyle6 test.pyc > test.py

import base64

def encode(message):
    s = ''
    for i in message:
        x = ord(i) ^ 32
        x = x + 16
        s += chr(x)

    return base64.b64encode(s)


correct = 'XlNkVmtUI1MgXWBZXCFeKY+AaXNt'
flag = ''
print 'Input flag:'
flag = raw_input()
if encode(flag) == correct:
    print 'correct'
else:
    print 'wrong'
# okay decompiling test.pyc

import base64

def decode(message):
    s = ''
    imessage = base64.b64decode(message)

    for i in imessage:
        x = ord(i) - 16
        x = x ^ 32
        s += chr(x)

    return s

correct = 'XlNkVmtUI1MgXWBZXCFeKY+AaXNt'

flag = decode(correct)
print(flag)