#seccon2021 #xornet from Crypto.Util.number import bytes_to_long, long_to_bytes from Crypto.Util.Padding import pad import random from secret import msg1, msg2, flag flag = pad(flag, 96) flag1 = flag[:48] flag2 = flag[48:] # P-384 Curve p =…

#xornet #seccon2021 from Crypto.Util.number import bytes_to_long, getPrime, getRandomInteger, isPrime from secret import flag def create_prime(p_bit_len, add_bit_len, a): p = getPrime(p_bit_len) p_bit_len2 = 2*p_bit_len // 3 + add_bit_len …

#SECCON_CTF_2022_Quals #xornet from Crypto.Util.number import bytes_to_long, getPrime from random import randint from math import gcd from secret import FLAG from os import urandom assert len(FLAG) < 100 def generate_key(rng, seed): e = rn…

#SECCON_CTF_2022_Quals #xornet from random import randint from Crypto.Util.number import getPrime, bytes_to_long from secret import FLAG # f(x,y,z) = a1*x + a2*x^2 + a3*x^3 # + b1*y + b2*y^2 + b3*y^3 # + c*z + s mod p def calc_f(coeffs, x,…