Trippi Troppa Chaos
The baker got infected with Italian brainrot and obfuscated our flag encoder with memes and nested functions. Can you help us find our flag?
points: 100
solves: 371
handouts: [output.txt, trippi_troppa_sus.py]
author: ha1fdan
Challenge Description
Given a very weird code of encryption, we need to simplify it and then find out the decryption
#!/usr/bin/env python3
import sys as _tralalero_tralala_impostor_____
(lambda _bombardiro_crocodilo___: [
setattr(__builtins__, '__boneca_ambalabu_toilet____', __import__('base64').b85encode),
setattr(__builtins__, '___trippa_troppa_mewing___', __import__('hashlib').sha256),
setattr(__builtins__, '__tung_tung_sahur_cycle_____', __import__('itertools').cycle),
setattr(__builtins__, '____pinguino_arrabiato_seed____', __import__('random').seed)
][_bombardiro_crocodilo___] and None)(0) or ____pinguino_arrabiato_seed____(69420)
def ___ranocchio_turbina_function_factory____():
def ____lirilì_rilà_final_boss_____():
def _____trippi_troppa_skibidi_____():
def ______crocodina_gigachad_nested______():
def _______tralala_alpha_transformation_______():
def ________boneca_beta_elimination________():
def _________sahur_sigma_activities_________():
def __________bombardiro_mewing__________():
def ___________trippa_no_cap___________():
def ____________tung_bussin_respectfully____________():
def _____________tralalero_slay_queen_energy_____________():
__fanum_tax_pinguino____ = lambda ___cringe_normie_bombardiro___, ____based_chad_crocodilo____: (lambda ____uwu_owo_tralalero____: [__c__ for __c__ in ____uwu_owo_tralalero____])(
[___x___ ^ ___y___ for ___x___, ___y___ in zip(___cringe_normie_bombardiro___, __tung_tung_sahur_cycle_____(____based_chad_crocodilo____))]
)
def ____boneca_ambalabu_university____(___x_trippa___, ___y_troppa___):
return (lambda ____bruh_moment_lirilì____: ____bruh_moment_lirilì____.digest()[:len(___y_troppa___)])(
___trippa_troppa_mewing___(
((___x_trippa___.decode() if isinstance(___x_trippa___, bytes) else ___x_trippa___) +
(___y_troppa___.decode() if isinstance(___y_troppa___, bytes) else ___y_troppa___)).encode()
)
)
def ____tralalero_griddy_dance____(___x_ranocchio___):
return (lambda ____fortnite_bombardiro_pass____:
[___c_crocodina___ for ___c_crocodina___ in ____fortnite_bombardiro_pass____]
)([((___c_sahur___ * 7) % 256) for ___c_sahur___ in ___x_ranocchio___])
def ____tung_reverse_uno_card____(___x_pinguino___):
return (lambda ____amogus_sus_trippi____: ____amogus_sus_trippi____[::-1])(___x_pinguino___)
def ____dead_meme_boneca_graveyard____():
____poggers_tralala____, ____chungus_rilà____, ____keanu_troppa____ = 1337, 420, 9000
for ___i_bombardiro___ in (lambda ___x_crocodilo___: range(___x_crocodilo___))(5):
____poggers_tralala____ = (____poggers_tralala____ * ____chungus_rilà____ + ____keanu_troppa____) % (___i_bombardiro___ + 7)
return ____poggers_tralala____
def ____touch_grass_tralalero_function____():
try:
with open("flag.txt", "rb") as ____yeet_file_ambalabu____:
____cringe_flag_pinguino____ = ____yeet_file_ambalabu____.read()
except:
return "L + ratio + skill issue + no tralalero for you"
____sussy_key_bombardiro____ = b"skibidi"
____step_one_boneca____ = ____boneca_ambalabu_university____(____sussy_key_bombardiro____, ____sussy_key_bombardiro____)
____step_two_sahur____ = bytes(__fanum_tax_pinguino____(____cringe_flag_pinguino____, ____step_one_boneca____))
____step_three_trippa____ = bytes(____tralalero_griddy_dance____(____step_two_sahur____))
____step_four_troppa____ = ____tung_reverse_uno_card____(____step_three_trippa____)
____final_boss_crocodina____ = __boneca_ambalabu_toilet____(____step_four_troppa____).decode()
return ____final_boss_crocodina____
return ____touch_grass_tralalero_function____
return _____________tralalero_slay_queen_energy_____________
return ____________tung_bussin_respectfully____________
return ___________trippa_no_cap___________
return __________bombardiro_mewing__________
return _________sahur_sigma_activities_________
return ________boneca_beta_elimination________
return _______tralala_alpha_transformation_______
return ______crocodina_gigachad_nested______
return _____trippi_troppa_skibidi_____
return ____lirilì_rilà_final_boss_____
if __name__ == "__main__":
print((lambda ___x_tralalero___: ___x_tralalero___()()()()()()()()()()()())(___ranocchio_turbina_function_factory____))output.txt:
qjuA_QZVI_ua24NQ}fM1hX4ecdyVShKb2vJjeQJ@Jz=zws0^9Enr1fR+Em_5w2j=p4)2<#m3EZ?m3Oo@Solution
Simplified encrypt.py:
import base64
import hashlib
import itertools
import random
random.seed(69420)
def func2(text, key):
return (x ^ y for x, y in zip(text, (key * ((len(text) // len(key)) + 1))[:len(text)]))
def func1(x, y):
if isinstance(x, bytes): x = x.decode()
if isinstance(y, bytes): y = y.decode()
return hashlib.sha256((x + y).encode()).digest()[:len(y)]
def func3(text):
return ((c * 7) % 256 for c in text)
def func4(text):
return text[::-1]
def func0():
with open("flag.txt", "rb") as flag_file:
flag = flag_file.read()
key = b"skibidi"
step_one = func1(key, key)
step_two = bytes(func2(flag, step_one))
step_three = bytes(func3(step_two))
step_four = func4(step_three)
final_step = base64.b85encode(step_four).decode()
return final_step
if __name__ == "__main__":
print(func0())Reverse logic to decrypt.py:
import base64
import hashlib
def func2(text, key):
return (x ^ y for x, y in zip(text, (key * ((len(text) // len(key)) + 1))[:len(text)]))
def func1(x, y):
if isinstance(x, bytes): x = x.decode()
if isinstance(y, bytes): y = y.decode()
return hashlib.sha256((x + y).encode()).digest()[:len(y)]
def func3_inv(text):
inv7 = pow(7, -1, 256)
return bytes((c * inv7) % 256 for c in text)
def func4(text):
return text[::-1]
def func0():
with open("output.txt") as f:
encoded = f.read().strip()
key = b"skibidi"
step1 = func1(key, key)
step4 = base64.b85decode(encoded)
step3 = func4(step4)
step2 = func3_inv(step3)
original_flag = bytes(func2(step2, step1))
return original_flag
if __name__ == "__main__":
print(func0().decode(errors="ignore"))brunner{tr4l4l3r0_b0mb4rd1r0_r3v3rs3_3ng1n33r1ng_sk1b1d1_m4st3r}Last updated on