Rows:
| CHALLENGE | AUTHORS | SOLVES (CURRENT) | SOLVE RATE (AT CONTEST TIME) |
|---|---|---|---|
AlpacaHack 2100Misc | 1645 solves | - | |
WelcomeMisc | 1546 solves | - | |
a fact of CTFCrypto | 883 solves | - | |
Simple LoginWeb | 612 solves | Top 28% = 84/300 users | |
EmojifyWeb | 597 solves | - | |
569 solves | - | ||
510 solves | Top 73% = 683/928 teams | ||
super-tomatoCrypto | 392 solves | - | |
hit-and-missMisc | 388 solves | - | |
echoPwn | 357 solves | Top 32% = 56/174 users | |
Xmas LoginWeb | 355 solves | - | |
346 solves | - | ||
Alpaca BankWeb | 332 solves | - | |
328 solves | - | ||
size limitCrypto | 320 solves | - | |
Encoding BasicsMisc Crypto | 318 solves | - | |
314 solves | - | ||
🐈Web | 312 solves | - | |
BarsWeb | 301 solves | - | |
108Misc | 296 solves | - |
Rows:
出力からフラグを復元してください🐍
import os
import random
from Crypto.Util.number import bytes_to_long
x = bytes_to_long(os.getenv("FLAG").encode())
for _ in range(42):
x *= random.getrandbits(42)
print(x)
出力:
302825260919317779466638288706941757478119936504864503289299111810878557424069832851837952929397907929396668240458993245662741522591539210493306557224673507192171095532552008396687356525313836501117714017702880902013061423179550493813470620956236263763510927657899587551000326509836294794948423351121777067521675908878203343378571238778872260377769563951765315203164771192344115744888944635103673374760547507150197387248980588584664707496184797486345139870127142403853041203948936595396757260050089360185668376949219377211437731767603055237909466371770346897408000000000000000