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Tag: Flag Checker

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Flag Checker

Flag checkers are a common type of challenge in the Reverse Engineering category.

An executable or script called a flag checker takes the player's input and outputs whether that input matches the flag.

These challenges may also be called "crackmes" in a broader sense. (automatically translated from Japanese)

minaminao
·Updated May 3, 2026
Flag Checker Challenges

glibc's secret function

Daily AlpacaHackTopic: glibcReleased: Mar 3, 2026

221 solves
Rev

by

tan90909090

tan90909090

USER

SOLVED AT

paper

2026/07/06 02:20

2026/07/04 17:27

2026/07/02 07:21

2026/07/02 02:32

2026/06/26 06:42

2026/06/24 18:11

2026/06/20 04:02

2026/06/19 19:58

2026/06/12 16:52

2026/06/06 12:14

2026/06/02 09:09

2026/05/28 13:03

2026/05/27 06:51

2026/05/10 15:23

2026/05/10 15:21

2026/05/09 04:56

2026/05/03 13:43

2026/05/02 10:24

2026/04/30 00:19

2026/04/29 15:14

2026/04/25 04:57

2026/04/24 04:40

2026/04/23 15:13

2026/04/15 02:31

2026/04/14 12:48

Rows:

descriptionsolveswriteups