BlackBerry e-screen unlock

BBEscreenUnlock.py

#!/usr/bin/env python

import hmac
import hashlib
import optparse
import sys

parser = optparse.OptionParser(
    "usage: %prog -p PIN -a 'APP VERSION' -u UPTIME [-d DURATION]")
parser.add_option('-p', '--pin', help='Device PIN', dest='pin')
parser.add_option('-a', '--app', help='OS Application Version', dest='app')
parser.add_option('-u', '--uptime', help='Uptime in seconds', dest='uptime')
parser.add_option('-d', '--duration', help='Unlock duration', dest='duration',
                  choices=('1', '3', '7', '15', '30'), default=30)

options, args = parser.parse_args()
parser.destroy()

if not options.pin:
    print('You must specify a PIN')
    sys.exit(1)
if not options.app:
    print('You must specify an OS Application Version')
    sys.exit(1)
if not options.uptime:
    print('You must specify the uptime')
    sys.exit(1)

lifetime = {
    1: "",
    3: "Hello my baby, hello my honey, hello my rag time gal",
    7: "He was a boy, and she was a girl, can I make it any more obvious?",
    15: "So am I, still waiting, for this world to stop hating?",
    30: "I love myself today, not like yesterday. I'm cool, I'm calm, I'm gonna be okay"
}

secret = 'Up the time stream without a TARDIS'

data = options.pin + options.app + options.uptime + \
    lifetime[int(options.duration)]
magichash = hmac.new(secret, data, digestmod=hashlib.sha1)
key = magichash.hexdigest()[:8]

print(key)