Hacker Animation Cool Console Kryptographic Sequencer (haccks)

Description

a digital rain code password decrypting effect library for Python, useful to visually represent character by-character secrets retrieval attacks. For example a binary search in a blind database injection.

inspired by the "cryptographic sequencer" from the Batman Arkham video games series and the phone number tracking effect from the Matrix movie intro

Usage

basic example

from haccks import Haccks

password = "T0psyKr33t!"

h = Haccks(len(password))

# guess 1 character by second
for i, c in enumerate(password):
    h.setCharacter(i, c)
    time.sleep(1)

change colors and framerate

from haccks import Haccks

h = Haccks(24, refreshDelay=1,
                    primaryColor="purple", secondaryColor="fuchsia")
h.setCharacter(0, 'A')
h.setCharacter(23, 'Z')

set a custom alphabet

from haccks import Haccks

alphabet = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!"#$%&()*+<>?'
e = Haccks(40, alphabet, refreshDelay=0.01,
                    primaryColor="yellow2", secondaryColor="aqua")


# cool animation: guess one random potential character by millisecond 
lal = [random.sample(list(alphabet), len(alphabet)) for _ in range(40)]
while True:
    r = random.randint(0, len(lal)-1)
    if len(lal[r]) > 1:
        e.removeCharsFromAlphabet(r, lal[r].pop())
        time.sleep(0.001)

call a custom method at the animation end

from haccks import Haccks

from blessed import Terminal

def myCustomEnding(term: Terminal):
    paddH = term.height // 2 - 2

    print(term.clear)
    print(term.move_yx(paddH, 0) + term.chocolate1 +
          term.center("It’s now safe to turn off"))
    print(term.move_yx(paddH+1, 0) + term.chocolate1 +
          term.center("your computer"))
    time.sleep(5)

h = Haccks(12, customEndingMethod=myCustomEnding)
...

Documentation

Please tell me if it's not clear
(it makes sense in my mind, but that's because i'm a genius :P)

# constructor of effect. immediatly displays fullscreen on terminal.
# ex: you know you have a 7 chars long secret to guess that can only be hexadecimal chars:
#   Haccks(7, '0123456789abcdef')

h = Haccks(
    numChars: int,               # number of "cracking" characters to display
    alphabet: str = "",          # possible chars shown.
    refreshDelay: float = 0.01,  # sleep time between each refresh of the effect

    # check blessed.readthedocs.io/en/latest/colors.html for available colors
    primaryColor: str = "green",    # color of the found characters 
    secondaryColor: str = "normal", # color of all other characters

    customEndingMethod: Callable[[blessed.Terminal], None] = None # custom method called at end
)

# set a character as "decoded", won't change and will appear in PrimaryColor
# ex: you found with a certitude that the second char of your secret is 'c': 
#     h.setCharacter(1, 'c')

h.setCharacter(
    position: int   # index of the character
    character: str: # char to set
)

# remove possible characters from the alphabet of an index
# ex: you know that the third char of your secret cannot b 'Z': 
#     h.removeCharsFromAlphabet(2, 'Z')

h.removeCharsFromAlphabet(
    position: int,  # index of the character
    characters: str # chars to exclude from alphabet
)

features and todos

Done

• some errors and automatic managements

  • removing alphabet characters will validate a character if there is only 1 char left.
  • if all characters are validated the ending is displayed

• blazingly fast (printing characters one by one? nobody would try that...)

• multiplatform (thanks to the blessed library)

• customisable (colors, custom ending)

• stoppable (type q to quit)

• window resize aware

TODO

• more customization?
  • non-fullscreen mode?
  • multiple secrets guesses?
• use multiprocessing instead of threading ? (very small performance gain)
• more? (pull requests are open)