LemonTea's blog

2025-03-05 327 words 2 mins

VishwaCTF'25 Write Up

This is VishwaCTF’25 writeup eng version QuadRant It give us four pices of QRcode so I think that maybe build them together and the flag we come through and it actually is Flag: VishwaCTF{aG9lMTIzNDU2c3Bhc3NhZ2U=} Chaos It give us a code and a output file source: 123456789101112131415161718192

2025-02-18 2.5k words 14 mins

SCIST 資安季中賽write up

SCIST 資安季中賽write up Welcome Real welcome: 題目：此次季中賽 Flag 格式均為：SCIST{.*} SCIST{Hello_World_From_SCIST} Flag: SCIST{Hello_World_From_SCIST} CATCH THE FLAG! 題目：嗨你好我是 OsGa 預祝各位季中賽順利，我和 Fearnot 去打 EOF 了記得要乖乖不要壞壞ㄡ FLAG 被我放在首頁的一個的地方，快去找找看ㄅ第一段flag放在首頁的console裡接著去找第二段看了提示放在robots.txt裡看到這個頁面進到

2024-12-30 351 words 1 min

2024 年末回顧

2024 年末回顧 Before All 我文筆很爛請見諒正文今年是個充實的一年會考完後就去日本玩了買了很多週邊還去看了五等分的展覽超開心的meow!!! 從日本回來後繼續學程式，然後被朋友找去開發網頁雖然我之前有寫過但還學到了超多東東順便宣傳一下 XDD https://harutoo.com 然後遇到了改變我人生的轉機去找表哥時順道被推薦了SITCON camp 然後就一發不可收拾了重慢慢的社群到參加各個活動雖然期間常常被父母罵我的成績但whatever 不被當就好XDD 好啦然後暑假也接觸到資安（起因是被某人抓進來打CTF 從此一發不可收拾）然後基本上學資安開始非寢忘

2024-12-19 1.1k words 6 mins

THJCC writeup

THJCC writeup 這場我沒有什麼打但看到幾題蠻有趣的就想說來寫個write up >w< url: https://ctf.scint.org Discord 0x2 去discord /get_flag 就能拿到Flag了 Welcome 0x2 把 https://ctf.scint.org/ 丟burp或curl或view-source:https://ctf.scint.org/ 就可以去找Flag了 Flag: THJCC{Sn4ke_G4me_Mast3r} S-box source: 12345678910111213

2024-11-24 295 words 1 min

NHNC offical writeup

NHNC LemonTea writeup Secret Rot13 Open the two file encrypte code 12345678910111213141516171819def encrypt(text, key): encrypted_text = "" for i, char in enumerate(text): offset = ((i + 1 + key) * (i + 1)) % 26 if 'A' <= char <= 'Z':

2013-12-24 16 words 1 min

Hello World

Welcome to Hexo! This is your very first post. Check documentation to learn how to use.