# coding=utf-8 import math import sys from Crypto.PublicKey import RSA keypair = RSA.generate(1024) keypair.p = 275127860351348928173285174381581152299 keypair.q = 319576316814478949870590164193048041239 keypair.e = 65537 keypair.n = keypair.p * keypair.q Qn = long((keypair.p-1) * (keypair.q-1)) i = 1 while (True): x = (Qn * i ) + 1 if (x % keypair.e == 0): keypair.d = x / keypair.e break i += 1 private = open('private.pem','w') private.write(keypair.exportKey()) private.close()
openssl rsautl -decrypt -in flag.enc -inkey private.pem -out flag.dec
cat flag.dec