{"published":"2025-07-06 23:41:10","description":"RSARSARSARSARSARSA OTEC Flag Sharing Zero-sum game \u5168\u4f53\u3092\u901a\u3057\u3066\u306e\u611f\u60f3 \u3053\u3093\u306b\u3061\u306f\u3002\u4eca\u65e5\u306fAlpacaHack Round 12 (Crypto)\u3067\u3057\u305f\u3002 AlpacaHack\u306f6\u6642\u95934\u554f\u306e\u500b\u4eba\u6226CTF\u3092\u4e0d\u5b9a\u671f\u3067\u958b\u50ac\u3057\u3066\u3044\u308bCTF\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3067\u3059\u3002\u7a0b\u3088\u3044\u30dc\u30ea\u30e5\u30fc\u30e0\u3067\u3042\u308b\u3053\u3068\u3001\u6bce\u56de\u826f\u8cea\u306a\u554f\u984c\u304c\u63d0\u4f9b\u3055\u308c\u308b\u3053\u3068\u304b\u3089\u4eca\u4e00\u756a\u8d14\u5c53\u306b\u3057\u3066\u3044\u307e\u3059\u3002 \u4eca\u56de\u306fyu212 \u3055\u3093\u306b\u3088\u308bCrypto\u56de\u3067\u3001\u79c1\u306fCTF\u3067\u306fCrypto\u304c\u7279\u306b\u597d\u304d\u306a\u306e\u3067\u53c2\u52a0\u3057\u3066\u30014\u554f\u4e2d3\u554f\u3092\u89e3\u3044\u30667\u4f4d\u3067\u3057\u305f\u3002\u76ee\u6a19\u306f4\u6642\u9593*1\u30674\u554f\u306e\u3064\u3082\u308a\u3060\u3063\u305f\u306e\u306b\u5b9f\u969b\u306f3\u554f\u3068\u53ca\u3070\u305a\u6b8b\u5ff5\u3067\u3059\u304c\u3001\u305b\u3063\u304b\u304f\u306a\u306e\u2026","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/F/Furutsuki/20250706/20250706210929.png","version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ffurutsuki.hatenablog.com%2Fentry%2F2025%2F07%2F06%2F234110\" title=\"AlpacaHack Round 12 (Crypto) - writeup - \u3075\u308b\u3064\u304d\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_url":"https://hatena.blog","author_url":"https://blog.hatena.ne.jp/Furutsuki/","categories":[],"type":"rich","blog_title":"\u3075\u308b\u3064\u304d","blog_url":"https://furutsuki.hatenablog.com/","height":"190","width":"100%","url":"https://furutsuki.hatenablog.com/entry/2025/07/06/234110","provider_name":"Hatena Blog","title":"AlpacaHack Round 12 (Crypto) - writeup","author_name":"Furutsuki"}