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Rows:

CHALLENGEAUTHORS

SOLVES

(CURRENT)

SOLVE RATE

(AT CONTEST TIME)

Welcome
Misc

admin

1462

solves

-

Daily AlpacaHack

1356

solves

-

Daily AlpacaHack

774

solves

-

AlpacaHack Round 2 (Web)

588

solves

Top 28%

= 84/300 users

Daily AlpacaHack

529

solves

-

Daily AlpacaHack

507

solves

-

Daily AlpacaHack

455

solves

-

Daily AlpacaHack

352

solves

-

Daily AlpacaHack

347

solves

-

echo
Pwn

AlpacaHack Round 1 (Pwn)

345

solves

Top 32%

= 56/174 users

Daily AlpacaHack

311

solves

-

Daily AlpacaHack

307

solves

-

Daily AlpacaHack

304

solves

-

Daily AlpacaHack

295

solves

-

Daily AlpacaHack

292

solves

-

Daily AlpacaHack

289

solves

-

Daily AlpacaHack

287

solves

-

Encoding Basics
Misc
Crypto

Daily AlpacaHack

287

solves

-

108
Misc

Daily AlpacaHack

269

solves

-

AlpacaHack Round 7 (Web)

266

solves

Top 15%

= 71/458 users

Rows:

42

SECCON CTF 13 ζ±Ίε‹θ¦³ζˆ¦CTF
57 solves
Crypto

Author:

ε‡ΊεŠ›γ‹γ‚‰γƒ•γƒ©γ‚°γ‚’εΎ©ε…ƒγ—γ¦γγ γ•γ„πŸ

import os
from Crypto.Util.number import getPrime, bytes_to_long

x = bytes_to_long(os.getenv("FLAG").encode())
for _ in range(42):
    x *= getPrime(42)
print(x)

ε‡ΊεŠ›:

1147519914005635970823022779519580521609222940350823007699842537827644738629829657046897975782350987748029018405699017377382521676899556171556649128260865812262043303782475632488849236816194782530154901066736272457909268699844626557409460652217501658644287801649083260640392194864370700199619482572398308537257922259125395585581757757644945754520977388691814074631081409677094992839775104691433743609551833747629636402523522392312458111656977789142053773849669780021688811768524291886161405435708715493344047580746854894532523408006689911316576153711061177239836663374119954672786387
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