AlpacaHack Logo

Challenges

Sign InSign Up

Rows:

CHALLENGEAUTHORS

SOLVES

(CURRENT)

SOLVE RATE

(AT CONTEST TIME)

Welcome
Misc
admin
459

solves

-

AlpacaHack Round 2 (Web)

215

solves

Top 28%

= 84/300 users

echo
Pwn

AlpacaHack Round 1 (Pwn)

167

solves

Top 32%

= 56/174 users

qrime
Crypto

AlpacaHack Round 3 (Crypto)

138

solves

Top 38%

= 91/239 users

CakeCTF 2023

94

solves

Top 33%

= 246/729 teams

AlpacaHack Round 6 (Pwn)

82

solves

Top 28%

= 57/197 users

RTACTF 2023 Spring

73

solves

-

AlpacaHack Round 3 (Crypto)

71

solves

Top 17%

= 42/239 users

AlpacaHack Round 4 (Rev)

63

solves

Top 15%

= 42/279 users

AlpacaHack Round 6 (Pwn)

61

solves

Top 20%

= 41/197 users

AlpacaHack Round 1 (Pwn)

58

solves

Top 15%

= 27/174 users

AlpacaHack Round 3 (Crypto)

51

solves

Top 12%

= 30/239 users

XOR-CBC
Crypto

RTACTF 2023 Spring

49

solves

-

AlpacaHack Round 2 (Web)

48

solves

Top 3%

= 10/300 users

CaaS
Web

AlpacaHack Round 2 (Web)

47

solves

Top 4%

= 13/300 users

Hat Trick
Crypto

AlpacaHack Round 3 (Crypto)

46

solves

Top 10%

= 26/239 users

CakeCTF 2022

44

solves

Top 14%

= 104/713 teams

CakeCTF 2022

40

solves

Top 18%

= 132/713 teams

AlpacaHack Round 5 (Crypto)

40

solves

Top 11%

= 28/247 users

RTACTF 2023 Spring

37

solves

-

Rows:

Anti-Fermat

zer0pts CTF 2022
7 solves
Crypto

Author:

ptr-yudai

I invented Anti-Fermat Key Generation for RSA cipher since I'm scared of the Fermat's Factorization Method.

anti-fermat.tar.gz
descriptionsolveswriteups