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picoCTF/sra/chal.py
Maxime Vorwerk 6fef760cbe sra
2024-07-30 18:31:11 +02:00

26 lines
630 B
Python
Executable File

from Crypto.Util.number import getPrime, inverse, bytes_to_long
from string import ascii_letters, digits
from random import choice
pride = "".join(choice(ascii_letters + digits) for _ in range(16))
gluttony = getPrime(128)
greed = getPrime(128)
lust = gluttony * greed
sloth = 65537
envy = inverse(sloth, (gluttony - 1) * (greed - 1))
anger = pow(bytes_to_long(pride.encode()), sloth, lust)
print(f"{anger = }")
print(f"{envy = }")
print("vainglory?")
vainglory = input("> ").strip()
if vainglory == pride:
print("Conquered!")
with open("/challenge/flag.txt") as f:
print(f.read())
else:
print("Hubris!")