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onotch

@onotch512

CTF HISTORY

START DATECTFRANK

2025/05/17

AlpacaHack Round 11 (Web)
30 / 213

2025/03/01

SECCON CTF 13 決勝観戦CTF
23 / 233

2024/11/30

AlpacaHack Round 7 (Web)
35 / 458

2024/11/03

AlpacaHack Round 6 (Pwn)
32 / 197

2024/10/12

AlpacaHack Round 5 (Crypto)
29 / 247

2024/09/01

AlpacaHack Round 2 (Web)
63 / 300

2024/08/18

AlpacaHack Round 1 (Pwn)
46 / 174

SOLVED CHALLENGES

CHALLENGESOLVES

SOLVED AT

Impossible Puzzle
Web
Daily AlpacaHack

132 solves

yesterday

You are my friend
Crypto
Daily AlpacaHack

133 solves

yesterday

Message For You
Web
Daily AlpacaHack

154 solves

2 days ago

Alpacker
Rev
Daily AlpacaHack

77 solves

2 weeks ago

The future path
Crypto
Daily AlpacaHack

92 solves

2 weeks ago

Faulty AES
Crypto
tkbctf5

62 solves

3 weeks ago

javajail
Misc
tkbctf5

56 solves

3 weeks ago

Simple Crackme
Rev
tkbctf5

54 solves

3 weeks ago

Secure Gate
Web
tkbctf5

69 solves

3 weeks ago

BINARY IN THE FUTURE.
Rev
tkbctf5

68 solves

3 weeks ago

Patisserie
Web
tkbctf5

97 solves

3 weeks ago

Single Hint RSA
Crypto
tkbctf5

120 solves

3 weeks ago

README.pdf
Rev
tkbctf5

146 solves

3 weeks ago

Heuristic IPPON
Misc
Daily AlpacaHack

165 solves

3 weeks ago

kappa overflow
Pwn
Daily AlpacaHack

118 solves

3 weeks ago

Find XOR key
Crypto
Daily AlpacaHack

141 solves

3 weeks ago

💯
Misc
Daily AlpacaHack

112 solves

3 weeks ago

FLAG OVER
Misc
Daily AlpacaHack

111 solves

3 weeks ago

guess.js
Misc
Daily AlpacaHack

101 solves

3 weeks ago

high and low
Crypto
Daily AlpacaHack

86 solves

4 weeks ago

magic number
Misc
Daily AlpacaHack

120 solves

4 weeks ago

Flag Printer 2026
Misc
Daily AlpacaHack

196 solves

last month

glibc's secret function
Rev
Daily AlpacaHack

191 solves

last month

Bars
Web
Daily AlpacaHack

290 solves

last month

Alpaca Rangers
Web
Daily AlpacaHack

146 solves

last month

hit-and-hit
Misc
Daily AlpacaHack

85 solves

last month

Alpaca Quest
Rev
Daily AlpacaHack

113 solves

last month

Noob programmer
Pwn
Daily AlpacaHack

103 solves

last month

CopperCopperCopper
Crypto
Daily AlpacaHack

92 solves

last month

Dancing Cursor
RevMisc
Daily AlpacaHack

108 solves

last month

Pickle Loader
Misc
Daily AlpacaHack

116 solves

last month

Disappeared
Pwn
Daily AlpacaHack

115 solves

last month

wages of sin()
RevMisc
Daily AlpacaHack

91 solves

last month

Alpaillier
Crypto
Daily AlpacaHack

117 solves

last month

You are being redirected
Web
Daily AlpacaHack

113 solves

last month

simple ROP
Pwn
Daily AlpacaHack

112 solves

last month

AAAAAAAAEEEEEEEESSSSSSSS
Crypto
Daily AlpacaHack

119 solves

last month

nc magic
Misc
Daily AlpacaHack

132 solves

last month

destructuring
Misc
Daily AlpacaHack

142 solves

last month

Alpaca-Llama Ranch
Pwn
Daily AlpacaHack

123 solves

last month

Plz Login
Web
Daily AlpacaHack

222 solves

last month

Compressor
Misc
Daily AlpacaHack

109 solves

last month

misdirection
Rev
Daily AlpacaHack

158 solves

last month

The World
Misc
Daily AlpacaHack

187 solves

last month

RRe_Time_Limiter
Crypto
Daily AlpacaHack

175 solves

last month

Magic Engine
Web
Daily AlpacaHack

266 solves

2 months ago

read-a-binary
Rev
Daily AlpacaHack

221 solves

2 months ago

Substance
Crypto
Daily AlpacaHack

237 solves

2 months ago

optimal-sort
Misc
Daily AlpacaHack

104 solves

2 months ago

Linear Coffee Generator
Crypto
Daily AlpacaHack

113 solves

2 months ago

shellcode-101
Pwn
Daily AlpacaHack

135 solves

2 months ago

No JS
Web
Daily AlpacaHack

131 solves

2 months ago

ToyPQC
Crypto
Daily AlpacaHack

107 solves

2 months ago

git gc
Misc
Daily AlpacaHack

152 solves

2 months ago

Stateless Auth
Web
Daily AlpacaHack

166 solves

2 months ago

Paca Paca Authenticator
Crypto
Daily AlpacaHack

126 solves

2 months ago

Bashrunner
Misc
Daily AlpacaHack

120 solves

2 months ago

Animal Viewer
Web
Daily AlpacaHack

153 solves

2 months ago

dockerstack
Misc
Daily AlpacaHack

178 solves

2 months ago

system-v
Rev
Daily AlpacaHack

118 solves

2 months ago

ChaChaCha
Crypto
Daily AlpacaHack

156 solves

2 months ago

dice roll
Web
Daily AlpacaHack

200 solves

2 months ago

Base Length
Misc
Daily AlpacaHack

154 solves

2 months ago

Short Writer
Pwn
Daily AlpacaHack

123 solves

2 months ago

Five Alpacas
Crypto
Daily AlpacaHack

195 solves

2 months ago

free-comment
Misc
Daily AlpacaHack

150 solves

2 months ago

I wanna be the Admin
Web
Daily AlpacaHack

281 solves

2 months ago

Basic Buffer Overflow
Pwn
Daily AlpacaHack

184 solves

2 months ago

crazython
Rev
Daily AlpacaHack

183 solves

2 months ago

RSA2026
Crypto
Daily AlpacaHack

207 solves

2 months ago

SwapSwap
Misc
Daily AlpacaHack

282 solves

2 months ago

secret-table
Web
Daily AlpacaHack

267 solves

2 months ago

Square RSA
Crypto
Daily AlpacaHack

233 solves

2 months ago

jailiaj
Misc
Daily AlpacaHack

277 solves

2 months ago

Encoding Basics
MiscCrypto
Daily AlpacaHack

314 solves

3 months ago

Fushigi Crawler
Web
Daily AlpacaHack

339 solves

3 months ago

Ruby Flag Checker
Rev
Daily AlpacaHack

284 solves

3 months ago

super-tomato
Crypto
Daily AlpacaHack

383 solves

3 months ago

108
Misc
Daily AlpacaHack

293 solves

3 months ago

RBG
Crypto
Daily AlpacaHack

122 solves

3 months ago

one-p-rsa
Crypto
Daily AlpacaHack

230 solves

3 months ago

cha-ll-enge
Rev
SECCON Beginners CTF 2024

158 solves

3 months ago

simpleoverwrite
Pwn
SECCON Beginners CTF 2024

195 solves

3 months ago

Useful Machine
Rev
Daily AlpacaHack

157 solves

3 months ago

Xmas Login
Web
Daily AlpacaHack

347 solves

3 months ago

cat3
Misc
Daily AlpacaHack

220 solves

3 months ago

Rotten Beef
Pwn
Daily AlpacaHack

203 solves

3 months ago

Log Viewer
Web
Daily AlpacaHack

224 solves

3 months ago

RSA debug?
Crypto
Daily AlpacaHack

191 solves

3 months ago

omikuji
Web
Daily AlpacaHack

246 solves

3 months ago

alloc-101
Pwn
Daily AlpacaHack

217 solves

3 months ago

Twilight
Rev
Daily AlpacaHack

229 solves

3 months ago

login-bonus
Pwn
Daily AlpacaHack

251 solves

3 months ago

🐈
Web
Daily AlpacaHack

307 solves

3 months ago

Flag Printer 2100
Rev
Daily AlpacaHack

244 solves

3 months ago

power_obfus_royalty
Rev
Daily AlpacaHack

206 solves

3 months ago

Safe Prime
Crypto
SECCON Beginners CTF 2024

252 solves

3 months ago

Sugoi Flag Checker
Rev
Daily AlpacaHack

201 solves

3 months ago

Alpaca Bank
Web
Daily AlpacaHack

328 solves

3 months ago

Read Assembly
Rev
Daily AlpacaHack

308 solves

3 months ago

hit-and-miss
Misc
Daily AlpacaHack

380 solves

3 months ago

Fully Padded RSA
Crypto
Daily AlpacaHack

235 solves

3 months ago

size limit
Crypto
Daily AlpacaHack

314 solves

3 months ago

simpleoverflow
Pwn
SECCON Beginners CTF 2024

500 solves

4 months ago

Integer Writer
Pwn
Daily AlpacaHack

321 solves

4 months ago

Leaked Flag Checker
Rev
Daily AlpacaHack

559 solves

4 months ago

AlpacaHack 2100
Misc
Daily AlpacaHack

1604 solves

4 months ago

a fact of CTF
Crypto
Daily AlpacaHack

872 solves

4 months ago

Emojify
Web
Daily AlpacaHack

588 solves

4 months ago

Oyster
Pwn
AlpacaHack Round 10 (Pwn)

128 solves

8 months ago

hidden
Rev
AlpacaHack Round 8 (Rev)

71 solves

8 months ago

Jackpot
Web
AlpacaHack Round 11 (Web)

162 solves

10 months ago

masking tape
Rev
AlpacaHack Round 8 (Rev)

173 solves

10 months ago

Alpaca Poll
Web
AlpacaHack Round 7 (Web)

129 solves

last year

Treasure Hunt
Web
AlpacaHack Round 7 (Web)

269 solves

last year

catcpy
Pwn
AlpacaHack Round 6 (Pwn)

146 solves

last year

inbound
Pwn
AlpacaHack Round 6 (Pwn)

207 solves

last year

XorshiftStream
Crypto
AlpacaHack Round 5 (Crypto)

65 solves

last year

Simple Flag Checker
Rev
AlpacaHack Round 4 (Rev)

127 solves

last year

Simple Login
Web
AlpacaHack Round 2 (Web)

609 solves

last year

echo
Pwn
AlpacaHack Round 1 (Pwn)

357 solves

last year

write
Pwn
RTACTF 2023 Spring

85 solves

last year

before-write
Pwn
RTACTF 2023 Spring

162 solves

last year

Welcome
Misc

1536 solves

last year