{"author_name":"hamayanhamayan","blog_title":"\u306f\u307e\u3084\u3093\u306f\u307e\u3084\u3093\u306f\u307e\u3084\u3093","url":"https://blog.hamayanhamayan.com/entry/2025/11/26/234301","blog_url":"https://blog.hamayanhamayan.com/","categories":["Security"],"published":"2025-11-26 23:43:01","version":"1.0","type":"rich","height":"190","image_url":null,"provider_url":"https://hatena.blog","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/hamayanhamayan/","title":"CTF\u306eCrypto\u306b\u304a\u3051\u308b\u9ad8\u6a5f\u80fd\u6697\u53f7\u307e\u3068\u3081 [\u79d8\u5bc6\u5206\u6563, \u30bc\u30ed\u77e5\u8b58\u8a3c\u660e, ZKP, \u6e96\u540c\u578b\u6697\u53f7]","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.hamayanhamayan.com%2Fentry%2F2025%2F11%2F26%2F234301\" title=\"CTF\u306eCrypto\u306b\u304a\u3051\u308b\u9ad8\u6a5f\u80fd\u6697\u53f7\u307e\u3068\u3081 [\u79d8\u5bc6\u5206\u6563, \u30bc\u30ed\u77e5\u8b58\u8a3c\u660e, ZKP, \u6e96\u540c\u578b\u6697\u53f7] - \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>","description":"CTF\u306b\u304a\u3051\u308bCrypto\u5165\u9580\u3068\u307e\u3068\u3081\u306e1\u3064\u3067\u3059\u3002 \u9ad8\u6a5f\u80fd\u6697\u53f7 \u79d8\u5bc6\u8a08\u7b97 \u79d8\u533f\u5171\u901a\u96c6\u5408\u8a08\u7b97 PSI : Private Set Intersection \u7d1b\u5931\u901a\u4fe1: Oblivious Transfer \u30ab\u30fc\u30c9\u30d9\u30fc\u30b9\u6697\u53f7 \u6e96\u540c\u578b\u6697\u53f7 FHE: Fully Homomorphic Encryption \u5b8c\u5168\u6e96\u540c\u578b\u6697\u53f7 TFHE \u79d8\u5bc6\u5206\u6563 SSS: \u30b7\u30e3\u30df\u30a2\u306e\u3057\u304d\u3044\u5024\u6cd5, Shamir's Secret Sharing \u79d8\u5bc6\u5206\u6563\u30d9\u30fc\u30b9\u306eMPC \u30bc\u30ed\u77e5\u8b58\u8a3c\u660e ZKP: Zero-Knowledge Proof zk-SNARK, zk-STARK FRI\u30d7\u30ed\u30c8\u30b3\u30eb PLONK\u30d7\u30ed\u30c8\u30b3\u30eb Fiat-S\u2026","width":"100%"}