{"blog_title":"koba-e964\u306e\u65e5\u8a18","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkoba-e964.hatenablog.com%2Fentry%2F2025%2F04%2F04%2F230138\" title=\"2025 \u5e74 1-3 \u6708 koba \u306e\u5fc3\u3092\u9707\u308f\u305b\u305f\u3082\u306e\u307e\u3068\u3081 - 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>","height":"190","provider_url":"https://hatena.blog","version":"1.0","url":"https://koba-e964.hatenablog.com/entry/2025/04/04/230138","author_name":"koba-e964","blog_url":"https://koba-e964.hatenablog.com/","published":"2025-04-04 23:01:38","width":"100%","author_url":"https://blog.hatena.ne.jp/koba-e964/","provider_name":"Hatena Blog","description":"\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30fc\u30fbCTF https://github.com/cryptocoinjs/secp256k1-node/security/advisories/GHSA-584q-6j8j-r5pm Invalid curve attack \u306e\u4e9c\u7a2e\u30022^35 \u56de\u7a0b\u5ea6\u306e\u524d\u8a08\u7b97\u3092\u884c\u3046\u3053\u3068\u3067\u3001 11 \u56de\u306e\u901a\u4fe1 (ECDH) \u3067\u79d8\u5bc6\u9375\u3092\u7279\u5b9a\u3067\u304d\u308b\u306e\u304c\u7279\u7b46\u3059\u3079\u304d\u70b9\u3002 \u4e0b\u624b\u3057\u305f\u3089 CTF \u3067\u51fa\u984c\u53ef\u80fd\u306a\u304f\u3089\u3044\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u304c\u697d\u3002 \u200b\u200bhttps://www.latacora.com/blog/2024/07/29/crypto-right-answers-pq/ Cryptographic Right Answ\u2026","title":"2025 \u5e74 1-3 \u6708 koba \u306e\u5fc3\u3092\u9707\u308f\u305b\u305f\u3082\u306e\u307e\u3068\u3081","categories":[],"type":"rich","image_url":null}