{"published":"2024-09-22 23:50:27","description":"IERAE CTF 2024 \u306b\u30c1\u30fc\u30e0 poteti fan club \u3067\u53c2\u52a0\u3057\u305f\u3002\u65e5\u672c\u6642\u9593\u3067 2024-09-21 15:00 \u304b\u3089 2024-09-22 15:00 \u307e\u3067\u3002\u7d50\u679c\u306f 5/224 \u4f4d\u3002 \u79c1\u306f 1 \u554f\u3057\u304b\u89e3\u3051\u306a\u304b\u3063\u305f\u4e0a\u306b\u305d\u308c\u3082\u5171\u540c\u4f5c\u696d\u3060\u3063\u305f\u304c\u3001\u305b\u3063\u304b\u304f\u306a\u306e\u3067\u6b8b\u3057\u3066\u304a\u304f\u3002 \u89e3\u6cd5\u96c6 Heady Heights 88 \u30d3\u30c3\u30c8\u306e\u30e9\u30f3\u30c0\u30e0\u306a\u7d20\u6570 p 88 \u30d3\u30c3\u30c8\u306e\u30e9\u30f3\u30c0\u30e0\u306a\u6574\u6570 a, b 0 \u4ee5\u4e0a p^7 \u672a\u6e80\u306e\u6574\u6570 secret \u30d5\u30e9\u30b0\u3092\u8868\u3059\u6574\u6570 m \u304c\u88cf\u3067\u6c7a\u307e\u3063\u3066\u3044\u308b\u3002EllipticCurve(Zmod(p^8), [a, b]) \u4e0a\u3067\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3068\u3063\u305f 3 \u70b9\u304c\u4e0e\u3048\u3089\u308c\u308b\u306e\u3067\u3001m \u2026","author_name":"koba-e964","blog_url":"https://koba-e964.hatenablog.com/","version":"1.0","author_url":"https://blog.hatena.ne.jp/koba-e964/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkoba-e964.hatenablog.com%2Fentry%2F2024%2F09%2F22%2F235027\" title=\"IERAE CTF 2024 writeup - koba-e964\u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","url":"https://koba-e964.hatenablog.com/entry/2024/09/22/235027","image_url":null,"categories":[],"blog_title":"koba-e964\u306e\u65e5\u8a18","provider_url":"https://hatena.blog","type":"rich","height":"190","title":"IERAE CTF 2024 writeup","provider_name":"Hatena Blog","width":"100%"}