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xornet

@Xornet_

AUTHORED CHALLENGES

OPEN DATECHALLENGESOLVES

2025/12/01

a fact of CTF
Crypto
616 solves

2024/10/12

NNNN
Crypto
45 solves

2024/10/05

pytecode
Rev
24 solves

2024/09/15

qrime
Crypto
243 solves

2024/09/15

A Dance of Add and Mul
Crypto
71 solves

CTF HISTORY

START DATECTFRANK

2024/10/05

AlpacaHack Round 4 (Rev)
44 / 279

WRITEUPS

WRITEUPCREATED AT
Writeup for Useful Machine (only code, no explanation)
en
Useful Machine

2 weeks ago

Writeup for Read Assembly (Gist and no explanation)
en
Read Assembly

last month

Writeup: AlpacaHack Round 4 - pytecode
ja
official
pytecode

last year

SOLVED CHALLENGES

CHALLENGESOLVES

SOLVED AT

free-comment
Misc
Daily AlpacaHack

110 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

3 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

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

Rotten Beef
Pwn
Daily AlpacaHack

166 solves

3 weeks ago

cat3
Misc
Daily AlpacaHack

184 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

I2C Device
Rev
AlpacaHack Round 4 (Rev)

9 solves

last month

vcipher
Rev
AlpacaHack Round 8 (Rev)

27 solves

last month

Safe Prime
Crypto
Daily AlpacaHack

222 solves

last month

Rainbow Sweet Alchemist
Crypto
AlpacaHack Round 3 (Crypto)

120 solves

last month

Sugoi Flag Checker
Rev
Daily AlpacaHack

175 solves

last month

str.vs.cstr
Pwn
CakeCTF 2022

25 solves

last month

bofww
Pwn
CakeCTF 2023

36 solves

last month

Alpaca Bank
Web
Daily AlpacaHack

254 solves

last month

GitFile Explorer
Web
zer0pts CTF 2022

42 solves

last month

luau
Rev
CakeCTF 2022

31 solves

last month

decompile me
Rev
zer0pts CTF 2023

46 solves

last month

Pico Note 1
Web
AlpacaHack Round 2 (Web)

75 solves

last month

Read Assembly
Rev
Daily AlpacaHack

250 solves

last month

hit-and-miss
Misc
Daily AlpacaHack

278 solves

last month

vtable4b
Pwn
CakeCTF 2023

59 solves

last month

nimrev
Rev
CakeCTF 2022

76 solves

last month

hidden
Rev
AlpacaHack Round 8 (Rev)

70 solves

last month

CakeGEAR
Web
CakeCTF 2022

76 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

CaaS
Web
AlpacaHack Round 2 (Web)

90 solves

last month

Alpaca Poll
Web
AlpacaHack Round 7 (Web)

124 solves

last month

Integer Writer
Pwn
Daily AlpacaHack

248 solves

last month

Simple Flag Checker
Rev
AlpacaHack Round 4 (Rev)

122 solves

last month

Jackpot
Web
AlpacaHack Round 11 (Web)

149 solves

last month

masking tape
Rev
AlpacaHack Round 8 (Rev)

168 solves

last month

Country DB
Web
CakeCTF 2023

214 solves

last month

Leaked Flag Checker
Rev
Daily AlpacaHack

406 solves

last month

Treasure Hunt
Web
AlpacaHack Round 7 (Web)

257 solves

last month

Simple Login
Web
AlpacaHack Round 2 (Web)

543 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

Kangaroo
Pwn
AlpacaHack Round 10 (Pwn)

63 solves

9 months ago

Oyster
Pwn
AlpacaHack Round 10 (Pwn)

119 solves

9 months ago

ideabook
Pwn
AlpacaHack Round 6 (Pwn)

32 solves

9 months ago

wall
Pwn
AlpacaHack Round 6 (Pwn)

57 solves

9 months ago

catcpy
Pwn
AlpacaHack Round 6 (Pwn)

138 solves

9 months ago

inbound
Pwn
AlpacaHack Round 6 (Pwn)

197 solves

9 months ago

subway
Rev
AlpacaHack Round 8 (Rev)

14 solves

9 months ago

OK
Crypto
zer0pts CTF 2022

2 solves

9 months ago

Welcome
Misc

1347 solves

9 months ago

before-write
Pwn
RTACTF 2023 Spring

153 solves

9 months ago

write
Pwn
RTACTF 2023 Spring

83 solves

9 months ago

read-write
Pwn
RTACTF 2023 Spring

39 solves

9 months ago

only-read
Pwn
RTACTF 2023 Spring

20 solves

9 months ago

Everything Silver
Rev
AlpacaHack Round 4 (Rev)

24 solves

9 months ago

topology
Rev
zer0pts CTF 2023

5 solves

9 months ago

mimikyu
Rev
zer0pts CTF 2023

13 solves

9 months ago

todo
Pwn
AlpacaHack Round 1 (Pwn)

22 solves

9 months ago

hexecho
Pwn
AlpacaHack Round 1 (Pwn)

109 solves

9 months ago

echo
Pwn
AlpacaHack Round 1 (Pwn)

328 solves

9 months ago