{"url":"https://blog.hamayanhamayan.com/entry/2025/11/26/234631","height":"190","blog_url":"https://blog.hamayanhamayan.com/","provider_url":"https://hatena.blog","title":"CTF\u306eCrypto\u306b\u304a\u3051\u308b\u6570\u5b66\u307e\u3068\u3081","image_url":null,"author_url":"https://blog.hatena.ne.jp/hamayanhamayan/","author_name":"hamayanhamayan","provider_name":"Hatena Blog","width":"100%","type":"rich","published":"2025-11-26 23:46:31","version":"1.0","categories":["Security"],"blog_title":"\u306f\u307e\u3084\u3093\u306f\u307e\u3084\u3093\u306f\u307e\u3084\u3093","description":"CTF\u306b\u304a\u3051\u308bCrypto\u5165\u9580\u3068\u307e\u3068\u3081\u306e1\u3064\u3067\u3059\u3002 Crypto\u306b\u304a\u3051\u308b\u6570\u5b66 \u521d\u7b49\u6574\u6570\u8ad6 \u30e2\u30b8\u30e5\u30e9\u30fc\u6574\u6570 \u5e73\u65b9\u5270\u4f59: Quadratic Residue mm = m2 mod n (n = pqr) \u9023\u5206\u6570\u5c55\u958b / \u9023\u5206\u6570\u8fd1\u4f3c \u7dda\u5f62\u4ee3\u6570\u5b66 \u4ee3\u6570\u5b66 \u7fa4 Group \u74b0 Rign \u4f53 Field \u6570\u8ad6\u306b\u304a\u3051\u308b\u4fbf\u5229\u5b9a\u7406\u3084\u5206\u91ce \u4ee3\u6570\u5e7e\u4f55\u5b66 \u95a2\u6570 / \u591a\u9805\u5f0f \u30b0\u30ec\u30d6\u30ca\u30fc\u57fa\u5e95\uff08\u30b0\u30e9\u30d6\u30ca\u30fc\uff09 \u4ed6 \u672c\u7a3f\u306f\u6570\u5b66\u79d1\u306e\u4eba\u9593\u304c\u66f8\u3044\u305f\u3082\u306e\u3067\u306f\u306a\u3044\u305f\u3081\u3001\u96f0\u56f2\u6c17\u3092\u3064\u304b\u3080\u6570\u5b66\u5a2f\u697d\u8aad\u672c\u3068\u3057\u3066\u697d\u3057\u3080\u3053\u3068\u3002\uff08\u6065\u77e5\u3089\u305a\u306b\u3082\u3001\u6570\u5b66\u306e\u3053\u3068\u3092\u66f8\u304f\u3068\u304d\u306f\u306a\u3093\u3068\u306a\u304f\u4e88\u9632\u7dda\u5f35\u3063\u3061\u3083\u3046\u306e\u3067\u3059\u304c...\uff09 Crypto\u306b\u304a\u3051\u308b\u6570\u5b66 \u9ad8\u6821\u6570\u5b66\u307e\u3067\u306f\u5b8c\u2026","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.hamayanhamayan.com%2Fentry%2F2025%2F11%2F26%2F234631\" title=\"CTF\u306eCrypto\u306b\u304a\u3051\u308b\u6570\u5b66\u307e\u3068\u3081 - \u306f\u307e\u3084\u3093\u306f\u307e\u3084\u3093\u306f\u307e\u3084\u3093\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>"}