{"blog_url":"https://kazu-yamamoto.hatenablog.jp/","provider_url":"https://hatena.blog","published":"2025-03-14 15:01:20","width":"100%","categories":["TLS"],"height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkazu-yamamoto.hatenablog.jp%2Fentry%2F2025%2F03%2F14%2F150120\" title=\"Encrypted Client Hello \u306e\u5b9f\u88c5 - \u3042\u3069\u3051\u306a\u3044\u8a71\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/k/kazu-yamamoto/20250313/20250313162910.png","url":"https://kazu-yamamoto.hatenablog.jp/entry/2025/03/14/150120","title":"Encrypted Client Hello \u306e\u5b9f\u88c5","author_url":"https://blog.hatena.ne.jp/kazu-yamamoto/","type":"rich","blog_title":"\u3042\u3069\u3051\u306a\u3044\u8a71","description":"ECH\u3092Haskell tls\u30e9\u30a4\u30d6\u30e9\u30ea\u306b\u5b9f\u88c5\u3057\u305f\u8a71\u3002\u5148\u306b\u300cEncrypted Client Hello \u306e\u4ed5\u69d8\u300d\u3092\u53c2\u7167\u306e\u3053\u3068\u3002Haskell\u3067\u5b9f\u88c5\u3057\u305f\u7d4c\u9a13\u8ac7\u306a\u306e\u3067\u3001Haskell\u306e\u77e5\u8b58\u3092\u524d\u63d0\u306b\u66f8\u304f\u3002 \u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u69cb\u6210 \u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u30fb\u30b5\u30fc\u30d0\u306e\u8a2d\u5b9a\u60c5\u5831\u3067\u3042\u308b ECHConfigList \u306f\u3001DNS\u3092\u901a\u3058\u3066\u63d0\u4f9b\u3055\u308c\u3001TLS\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068TLS\u30b5\u30fc\u30d0\u3067\u5229\u7528\u3055\u308c\u308b\u3002ECHConfigList \u306e\u578b\u3084\u3001\u305d\u306e\u7b26\u53f7\u5668/\u5fa9\u53f7\u5668\u3092\u3069\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u5b9f\u88c5\u3059\u308b\u304b\u6c7a\u3081\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002 tls \u30e9\u30a4\u30d6\u30e9\u30ea\u3092ECH\u306b\u5bfe\u5fdc\u3055\u305b\u308b\u3068\u3001ECHConfigList \u3092\u5229\u7528\u3059\u308b\u306e\u306f\u5f53\u7136\u3067\u3042\u308b\u3002\u50d5\u306e\u5e0c\u671b\u3068\u3057\u3066\u306f\u3001IIJ\u304c\u958b\u767a\u3057\u3066\u3044\u308b D\u2026","provider_name":"Hatena Blog","author_name":"kazu-yamamoto","version":"1.0"}