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@kurenaif

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kurenaif

@fwarashi

AUTHORED CHALLENGES

OPEN DATECHALLENGESOLVES

2026/02/25

One Byte Padding Oracle Attack
Crypto
66 solves

2026/01/04

285 solves

2024/11/23

9 solves

2024/11/23

5 solves

2024/11/23

28 solves

CTF HISTORY

START DATECTFRANK

2025/03/01

17 / 233

2024/09/15

16 / 239

2024/08/18

58 / 174

WRITEUPS

WRITEUPCREATED AT
SECCON CTF 13 writeup stream - YouTube
ja
official
dual_summon

last year

last year

SOLVED CHALLENGES

CHALLENGESOLVES

SOLVED AT

Hat Trick
AlpacaHack Round 3 (Crypto)

65 solves

last year

AlpacaHack Round 3 (Crypto)

74 solves

last year

AlpacaHack Round 3 (Crypto)

122 solves

last year

AlpacaHack Round 3 (Crypto)

250 solves

last year

CakeCTF 2022

79 solves

last year

CakeCTF 2022

27 solves

last year