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riantkb

CTF HISTORY

START DATECTFRANK

2025/07/20

AlpacaHack Round 13 (Crypto)
12 / 62

2025/05/17

AlpacaHack Round 11 (Web)
46 / 213

2025/03/01

SECCON CTF 13 決勝観戦CTF
29 / 233

2025/01/26

AlpacaHack Round 9 (Crypto)
8 / 138

2024/12/30

AlpacaHack Round 8 (Rev)
46 / 316

2024/10/12

AlpacaHack Round 5 (Crypto)
24 / 247

2024/09/15

AlpacaHack Round 3 (Crypto)
50 / 239

2024/09/01

AlpacaHack Round 2 (Web)
71 / 300

SOLVED CHALLENGES

CHALLENGESOLVES

SOLVED AT

wages of sin()
RevMisc
Daily AlpacaHack

84 solves

3 days ago

Alpaillier
Crypto
Daily AlpacaHack

101 solves

4 days ago

nc magic
Misc
Daily AlpacaHack

110 solves

last week

AAAAAAAAEEEEEEEESSSSSSSS
Crypto
Daily AlpacaHack

100 solves

last week

destructuring
Misc
Daily AlpacaHack

117 solves

last week

Plz Login
Web
Daily AlpacaHack

173 solves

last week

Compressor
Misc
Daily AlpacaHack

93 solves

last week

misdirection
Rev
Daily AlpacaHack

125 solves

last week

The World
Misc
Daily AlpacaHack

149 solves

2 weeks ago

HellCouple
Crypto
Daily AlpacaHack B-SIDE

63 solves

2 weeks ago

RRe_Time_Limiter
Crypto
Daily AlpacaHack

146 solves

2 weeks ago

Magic Engine
Web
Daily AlpacaHack

201 solves

2 weeks ago

read-a-binary
Rev
Daily AlpacaHack

175 solves

2 weeks ago

Substance
Crypto
Daily AlpacaHack

192 solves

2 weeks ago

optimal-sort
Misc
Daily AlpacaHack

95 solves

3 weeks ago

Linear Coffee Generator
Crypto
Daily AlpacaHack

105 solves

3 weeks ago

ToyPQC
Crypto
Daily AlpacaHack

100 solves

3 weeks ago

git gc
Misc
Daily AlpacaHack

139 solves

3 weeks ago

Stateless Auth
Web
Daily AlpacaHack

153 solves

3 weeks ago

Paca Paca Authenticator
Crypto
Daily AlpacaHack

116 solves

4 weeks ago

Bashrunner
Misc
Daily AlpacaHack

114 solves

4 weeks ago

Animal Viewer
Web
Daily AlpacaHack

136 solves

last month

dockerstack
Misc
Daily AlpacaHack

166 solves

last month

ChaChaCha
Crypto
Daily AlpacaHack

146 solves

last month

dice roll
Web
Daily AlpacaHack

176 solves

last month

Base Length
Misc
Daily AlpacaHack

141 solves

last month

Five Alpacas
Crypto
Daily AlpacaHack

167 solves

last month

free-comment
Misc
Daily AlpacaHack

142 solves

last month

I wanna be the Admin
Web
Daily AlpacaHack

236 solves

last month

crazython
Rev
Daily AlpacaHack

166 solves

last month

RSA2026
Crypto
Daily AlpacaHack

187 solves

last month

SwapSwap
Misc
Daily AlpacaHack

243 solves

last month

secret-table
Web
Daily AlpacaHack

233 solves

last month

Square RSA
Crypto
Daily AlpacaHack

208 solves

last month

jailiaj
Misc
Daily AlpacaHack

246 solves

last month

Encoding Basics
MiscCrypto
Daily AlpacaHack

274 solves

last month

Fushigi Crawler
Web
Daily AlpacaHack

286 solves

last month

Ruby Flag Checker
Rev
Daily AlpacaHack

251 solves

last month

super-tomato
Crypto
Daily AlpacaHack

330 solves

last month

108
Misc
Daily AlpacaHack

253 solves

last month

RBG
Crypto
Daily AlpacaHack

116 solves

last month

one-p-rsa
Crypto
Daily AlpacaHack

199 solves

last month

Useful Machine
Rev
Daily AlpacaHack

146 solves

last month

Xmas Login
Web
Daily AlpacaHack

291 solves

last month

cat3
Misc
Daily AlpacaHack

198 solves

last month

Rotten Beef
Pwn
Daily AlpacaHack

179 solves

last month

RSA debug?
Crypto
Daily AlpacaHack

173 solves

last month

omikuji
Web
Daily AlpacaHack

218 solves

2 months ago

Twilight
Rev
Daily AlpacaHack

205 solves

2 months ago

login-bonus
Pwn
Daily AlpacaHack

223 solves

2 months ago

🐈
Web
Daily AlpacaHack

274 solves

2 months ago

Flag Printer 2100
Rev
Daily AlpacaHack

220 solves

2 months ago

Sugoi Flag Checker
Rev
Daily AlpacaHack

186 solves

2 months ago

Safe Prime
Crypto
Daily AlpacaHack

234 solves

2 months ago

Alpaca Bank
Web
Daily AlpacaHack

290 solves

2 months ago

Read Assembly
Rev
Daily AlpacaHack

278 solves

2 months ago

hit-and-miss
Misc
Daily AlpacaHack

315 solves

2 months ago

Fully Padded RSA
Crypto
Daily AlpacaHack

215 solves

2 months ago

size limit
Crypto
Daily AlpacaHack

278 solves

2 months ago

simpleoverflow
Pwn
Daily AlpacaHack

430 solves

2 months ago

Integer Writer
Pwn
Daily AlpacaHack

283 solves

2 months ago

Leaked Flag Checker
Rev
Daily AlpacaHack

486 solves

2 months ago

Emojify
Web
Daily AlpacaHack

506 solves

2 months ago

a fact of CTF
Crypto
Daily AlpacaHack

744 solves

2 months ago

AlpacaHack 2100
Misc
Daily AlpacaHack

1264 solves

2 months ago

Jerry's flag checker
Crypto
AlpacaHack Round 13 (Crypto)

31 solves

7 months ago

Jackpot
Web
AlpacaHack Round 11 (Web)

157 solves

9 months ago

RSAMPC
Crypto
AlpacaHack Round 9 (Crypto)

35 solves

last year

Treasure Hunt
Web
AlpacaHack Round 7 (Web)

266 solves

last year

Welcome
Misc

1433 solves

last year

masking tape
Rev
AlpacaHack Round 8 (Rev)

171 solves

last year

XorshiftStream
Crypto
AlpacaHack Round 5 (Crypto)

62 solves

last year

qrime
Crypto
AlpacaHack Round 3 (Crypto)

248 solves

last year

Simple Login
Web
AlpacaHack Round 2 (Web)

576 solves

last year