YET ANOTHER CTF?
akictf
Example: Capture the flag!
Q1RGCg==
The answer is "CTF". Q1RGCg== is encoded by Base64. For example, you can solve the problem like this:
% echo 'Q1RGCg==' | base64 -D CTF
Enjoy :)
Problem
| # | Title | Point | Winner |
|---|---|---|---|
| 1 | Capture the flag! | 10 | |
| 2 | cheap cipher | 50 | |
| 3 | cheap cipher (revenge) | 80 | |
| 4 | directories | 60 | |
| 5 | The flag is a lie. | 200 | |
| 6 | Game #1 | 70 | |
| 7 | alphabet? | 80 | |
| 8 | Horizontal line | 70 | |
| 9 | encode-encode | 90 | |
| 10 | easy crackme | 70 | |
| 11 | hiragana | 90 | |
| 12 | ASCII Art | 60 | |
| 13 | Yet Another G00913 | 100 | |
| 14 | from login form | 120 | |
| 15 | ZIP is zip | 110 | |
| 16 | medium crackme | 130 | |
| 17 | Fragments of gzip | 80 | |
| 18 | Which is the flag? | 90 | |
| 19 | stairs | 80 | |
| 20 | searcher | 180 | |
| 21 | loop | 70 | |
| 22 | hidden 1 | 100 | |
| 23 | Picross | 250 | |
| 24 | Gyazo | 210 | |
| 25 | HEYYEYAAEYAAAEYAEYAA | 80 | |
| 26 | retro crackme | 150 | |
| 27 | Online banking | 270 | |
| 28 | feel the rhythm | 90 | |
| 29 | jpeglitch | 120 | |
| 30 | tell me a message | 230 | |
| 31 | hidden 2 | 120 | |
| 32 | simple sqli | 160 | |
| 33 | from secure login form | 180 | |
| 34 | CAPTCHA the Flag | 150 |