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@kakur41

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kakur41

@kakur41

CTF HISTORY

START DATECTFRANK

2025/07/20

AlpacaHack Round 13 (Crypto)
23 / 62

2025/03/23

AlpacaHack Round 10 (Pwn)
34 / 95

2025/03/01

SECCON CTF 13 決勝観戦CTF
1 / 233

2024/11/03

AlpacaHack Round 6 (Pwn)
51 / 197

2024/10/12

AlpacaHack Round 5 (Crypto)
32 / 247

2024/10/05

AlpacaHack Round 4 (Rev)
42 / 279

2024/09/01

AlpacaHack Round 2 (Web)
85 / 300

2024/08/18

AlpacaHack Round 1 (Pwn)
32 / 174

WRITEUPS

WRITEUPCREATED AT
Writeup for free-comment
ja
free-comment

1 hour ago

Writeup for I wanna be the Admin
ja
I wanna be the Admin

yesterday

Writeup for Basic Buffer Overflow
ja
Basic Buffer Overflow

2 days ago

Writeup for crazython
ja
crazython

3 days ago

Writeup for RSA2026
en
RSA2026

4 days ago

Writeup for SwapSwap
en
SwapSwap

5 days ago

Writeup for secret-table
en
secret-table

6 days ago

Writeup for Square RSA
en
Square RSA

last week

Writeup for jailiaj
en
jailiaj

last week

Writeup for Encoding Basics
en
Encoding Basics

last week

Writeup for Fushigi Crawler
en
Fushigi Crawler

last week

Writeup for Ruby Flag Checker
en
Ruby Flag Checker

last week

Writeup for super-tomato
ja
super-tomato

last week

Writeup for 108
ja
108

2 weeks ago

Writeup for RBG
ja
RBG

2 weeks ago

Writeup for one-p-rsa
ja
one-p-rsa

2 weeks ago

Writeup for cha-ll-enge
ja
cha-ll-enge

2 weeks ago

Writeup for simpleoverwrite
ja
simpleoverwrite

2 weeks ago

Writeup for Log Viewer
ja
Log Viewer

2 weeks ago

Writeup for Rotten Beef
ja
Rotten Beef

2 weeks ago

Writeup for cat3
ja
cat3

2 weeks ago

Writeup for Useful Machine
ja
Useful Machine

2 weeks ago

Writeup for Xmas Login
ja
Xmas Login

2 weeks ago

Writeup for RSA debug?
ja
RSA debug?

3 weeks ago

Writeup for omikuji
ja
omikuji

3 weeks ago

Writeup for alloc-101
ja
alloc-101

3 weeks ago

Writeup for Twilight
ja
Twilight

3 weeks ago

Writeup for login-bonus
ja
login-bonus

4 weeks ago

Writeup for 🐈
ja
🐈

4 weeks ago

Writeup for Flag Printer 2100
ja
Flag Printer 2100

last month

Writeup for Simple Flag Checker
ja
Simple Flag Checker

last year

Writeup for NetFS 2 (RST flag)
ja
NetFS 2

last year

Writeup for 1R-AES
ja
1R-AES

last year

SOLVED CHALLENGES

CHALLENGESOLVES

SOLVED AT

free-comment
Misc
Daily AlpacaHack

109 solves

yesterday

I wanna be the Admin
Web
Daily AlpacaHack

157 solves

2 days ago

Basic Buffer Overflow
Pwn
Daily AlpacaHack

126 solves

3 days ago

crazython
Rev
Daily AlpacaHack

147 solves

4 days ago

RSA2026
Crypto
Daily AlpacaHack

164 solves

5 days ago

SwapSwap
Misc
Daily AlpacaHack

205 solves

6 days ago

secret-table
Web
Daily AlpacaHack

189 solves

last week

Square RSA
Crypto
Daily AlpacaHack

177 solves

last week

jailiaj
Misc
Daily AlpacaHack

197 solves

last week

Encoding Basics
CryptoMisc
Daily AlpacaHack

206 solves

last week

Fushigi Crawler
Web
Daily AlpacaHack

221 solves

last week

Ruby Flag Checker
Rev
Daily AlpacaHack

200 solves

last week

super-tomato
Crypto
Daily AlpacaHack

248 solves

last week

Noisy Channel
Crypto

1 solve

2 weeks ago

108
Misc
Daily AlpacaHack

207 solves

2 weeks ago

RBG
Crypto
Daily AlpacaHack

110 solves

2 weeks ago

one-p-rsa
Crypto
Daily AlpacaHack

177 solves

2 weeks ago

cha-ll-enge
Rev
Daily AlpacaHack

130 solves

2 weeks ago

simpleoverwrite
Pwn
Daily AlpacaHack

151 solves

2 weeks ago

Useful Machine
Rev
Daily AlpacaHack

137 solves

2 weeks ago

Xmas Login
Web
Daily AlpacaHack

234 solves

3 weeks ago

cat3
Misc
Daily AlpacaHack

184 solves

3 weeks ago

Rotten Beef
Pwn
Daily AlpacaHack

166 solves

3 weeks ago

Log Viewer
Web
Daily AlpacaHack

183 solves

3 weeks ago

RSA debug?
Crypto
Daily AlpacaHack

165 solves

3 weeks ago

omikuji
Web
Daily AlpacaHack

195 solves

3 weeks ago

alloc-101
Pwn
Daily AlpacaHack

187 solves

3 weeks ago

Twilight
Rev
Daily AlpacaHack

191 solves

4 weeks ago

login-bonus
Pwn
Daily AlpacaHack

212 solves

4 weeks ago

🐈
Web
Daily AlpacaHack

243 solves

last month

Flag Printer 2100
Rev
Daily AlpacaHack

198 solves

last month

power_obfus_royalty
Rev
Daily AlpacaHack

177 solves

last month

Safe Prime
Crypto
Daily AlpacaHack

222 solves

last month

Sugoi Flag Checker
Rev
Daily AlpacaHack

175 solves

last month

Alpaca Bank
Web
Daily AlpacaHack

254 solves

last month

Read Assembly
Rev
Daily AlpacaHack

250 solves

last month

hit-and-miss
Misc
Daily AlpacaHack

278 solves

last month

Fully Padded RSA
Crypto
Daily AlpacaHack

200 solves

last month

size limit
Crypto
Daily AlpacaHack

247 solves

last month

simpleoverflow
Pwn
Daily AlpacaHack

370 solves

last month

Integer Writer
Pwn
Daily AlpacaHack

248 solves

last month

Leaked Flag Checker
Rev
Daily AlpacaHack

406 solves

last month

Emojify
Web
Daily AlpacaHack

437 solves

last month

a fact of CTF
Crypto
Daily AlpacaHack

616 solves

last month

AlpacaHack 2100
Misc
Daily AlpacaHack

982 solves

last month

Iron Door
Crypto
CakeCTF 2023

5 solves

9 months ago

Rock Door
Crypto
CakeCTF 2022

9 solves

9 months ago

Oyster
Pwn
AlpacaHack Round 10 (Pwn)

119 solves

9 months ago

packed
Rev
SECCON CTF 13 Quals

12 solves

11 months ago

only-read
Pwn
RTACTF 2023 Spring

20 solves

11 months ago

read-write
Pwn
RTACTF 2023 Spring

39 solves

11 months ago

I2C Device
Rev
AlpacaHack Round 4 (Rev)

9 solves

11 months ago

EDDH
Crypto
zer0pts CTF 2022

4 solves

11 months ago

CurveCrypto
Crypto
zer0pts CTF 2022

6 solves

11 months ago

1linepyjail
Jail
SECCON CTF 13 Quals

4 solves

11 months ago

reiwa_rot13
Crypto
SECCON CTF 13 Quals

24 solves

11 months ago

Alpaca Poll
Web
AlpacaHack Round 7 (Web)

124 solves

11 months ago

catcpy
Pwn
AlpacaHack Round 6 (Pwn)

138 solves

11 months ago

masking tape
Rev
AlpacaHack Round 8 (Rev)

168 solves

11 months ago

Treasure Hunt
Web
AlpacaHack Round 7 (Web)

257 solves

11 months ago

inbound
Pwn
AlpacaHack Round 6 (Pwn)

197 solves

last year

Modern Rome
Pwn
zer0pts CTF 2022

21 solves

last year

Anti-Fermat
Crypto
zer0pts CTF 2022

27 solves

last year

GitFile Explorer
Web
zer0pts CTF 2022

42 solves

last year

NNNN
Crypto
AlpacaHack Round 5 (Crypto)

45 solves

last year

pytecode
Rev
AlpacaHack Round 4 (Rev)

24 solves

last year

XorshiftStream
Crypto
AlpacaHack Round 5 (Crypto)

60 solves

last year

janken vs yoshiking 2
Crypto
CakeCTF 2023

15 solves

last year

brand new crypto
Crypto
CakeCTF 2022

21 solves

last year

welkerme
Pwn
CakeCTF 2022

25 solves

last year

nande
Rev
CakeCTF 2023

13 solves

last year

Hat Trick
Crypto
AlpacaHack Round 3 (Crypto)

61 solves

last year

C-Sandbox
Misc
CakeCTF 2022

4 solves

last year

readme 2022
Misc
CakeCTF 2022

13 solves

last year

A Dance of Add and Mul
Crypto
AlpacaHack Round 3 (Crypto)

71 solves

last year

Simple Flag Checker
Rev
AlpacaHack Round 4 (Rev)

122 solves

last year

Rainbow Sweet Alchemist
Crypto
AlpacaHack Round 3 (Crypto)

120 solves

last year

qrime
Crypto
AlpacaHack Round 3 (Crypto)

243 solves

last year

Simple Login
Web
AlpacaHack Round 2 (Web)

543 solves

last year

mimikyu
Rev
zer0pts CTF 2023

13 solves

last year

Cake Puzzle
Rev
CakeCTF 2023

19 solves

last year

hexecho
Pwn
AlpacaHack Round 1 (Pwn)

109 solves

last year

echo
Pwn
AlpacaHack Round 1 (Pwn)

328 solves

last year

aush
Pwn
zer0pts CTF 2023

20 solves

last year

luau
Rev
CakeCTF 2022

31 solves

last year

CakeGEAR
Web
CakeCTF 2022

76 solves

last year

TOWFL
CheatWeb
CakeCTF 2023

48 solves

last year

bofww
Pwn
CakeCTF 2023

36 solves

last year

NetFS 2
Misc
zer0pts CTF 2023

2 solves

last year

NetFS 1
Misc
zer0pts CTF 2023

11 solves

last year

nimrev
Rev
CakeCTF 2022

76 solves

last year

simple signature
Crypto
CakeCTF 2023

26 solves

last year

frozen cake
Crypto
CakeCTF 2022

68 solves

last year

SquareRNG
Crypto
zer0pts CTF 2023

14 solves

last year

decompile me
Rev
zer0pts CTF 2023

46 solves

last year

1R-AES
Crypto
RTACTF 2023 Spring

15 solves

last year

easy_factoring
Crypto
zer0pts CTF 2023

27 solves

last year

Reused-AES
Crypto
RTACTF 2023 Spring

30 solves

last year

Collision-DES
Crypto
RTACTF 2023 Spring

35 solves

last year

write
Pwn
RTACTF 2023 Spring

83 solves

last year

XOR-CBC
Crypto
RTACTF 2023 Spring

74 solves

last year

before-write
Pwn
RTACTF 2023 Spring

153 solves

last year

vtable4b
Pwn
CakeCTF 2023

59 solves

last year

Country DB
Web
CakeCTF 2023

214 solves

last year

Welcome
Misc

1347 solves

last year