{"id":17612,"date":"2026-02-13T08:36:04","date_gmt":"2026-02-13T07:36:04","guid":{"rendered":"https:\/\/webhosting.de\/tls-https-webhosting-handshake-performance-securehosting\/"},"modified":"2026-02-13T08:36:04","modified_gmt":"2026-02-13T07:36:04","slug":"tls-https-webhosting-handshake-performance-securehosting","status":"publish","type":"post","link":"https:\/\/webhosting.de\/ja\/tls-https-webhosting-handshake-performance-securehosting\/","title":{"rendered":"\u30a6\u30a7\u30d6\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306b\u304a\u3051\u308bTLS\u3068HTTPS\uff1a\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u3001\u6697\u53f7\u5316\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9"},"content":{"rendered":"<p>\u3069\u306e\u3088\u3046\u306b <strong>TLS HTTPS<\/strong> \u30a6\u30a7\u30d6\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u3067\u306f <strong>\u63e1\u624b<\/strong>, \u63a5\u7d9a\u304c\u8fc5\u901f\u304b\u3064\u5b89\u5168\u306b\u958b\u59cb\u3067\u304d\u308b\u3088\u3046\u3001\u6697\u53f7\u5316\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u3069\u306e\u30b5\u30fc\u30d0\u30fc\u30aa\u30d7\u30b7\u30e7\u30f3\u304c\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3092\u30b9\u30d4\u30fc\u30c9\u30a2\u30c3\u30d7\u3057\u3001\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3092\u524a\u6e1b\u3057\u3001\u540c\u6642\u306b\u30c7\u30fc\u30bf\u306e\u5b8c\u5168\u6027\u3092\u4fdd\u8b77\u3059\u308b\u304b\u3082\u8aac\u660e\u3057\u307e\u3059\u3002.<\/p>\n\n<h2>\u4e2d\u5fc3\u70b9<\/h2>\n\n<p>\u6982\u8981\u3092\u7c21\u5358\u306b\u8aac\u660e\u3059\u308b\u305f\u3081\u306b\u3001\u6838\u3068\u306a\u308b\u30c8\u30d4\u30c3\u30af\u3092\u7c21\u5358\u306b\u8981\u7d04\u3057\u3001\u6700\u3082\u91cd\u8981\u306a\u3082\u306e\u3092\u5f37\u8abf\u3059\u308b\u3002 <strong>\u8abf\u6574\u30cd\u30b8<\/strong>.<\/p>\n<ul>\n  <li><strong>TLS 1.3<\/strong> \u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u304c\u77ed\u7e2e\u3055\u308c\u3001\u30e9\u30a6\u30f3\u30c9\u30c8\u30ea\u30c3\u30d7\u304c\u5c11\u306a\u304f\u306a\u308b\u305f\u3081\u5f85\u3061\u6642\u9593\u304c\u77ed\u7e2e\u3055\u308c\u308b\u3002.<\/li>\n  <li><strong>OCSP\u30b9\u30c6\u30fc\u30d7\u30ea\u30f3\u30b0<\/strong> \u3068\u30bb\u30c3\u30b7\u30e7\u30f3\u518d\u958b\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u7bc0\u7d04\u3057\u3001\u518d\u63a5\u7d9a\u3092\u30b9\u30d4\u30fc\u30c9\u30a2\u30c3\u30d7\u3059\u308b\u3002.<\/li>\n  <li><strong>AES-NI<\/strong> \u3068ChaCha20\u306f\u3001\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306b\u5fdc\u3058\u3066\u6700\u9ad8\u306e\u5bfe\u79f0\u6697\u53f7\u5316\u3092\u63d0\u4f9b\u3059\u308b\u3002.<\/li>\n  <li><strong>\u3053\u3046\u305d\u304f\u304d\u3058\u3087\u3046\u307b\u3046\u305d\u3046\u3061\u3057\u304d<\/strong> \u305d\u3057\u3066\u7121\u99c4\u306a\u56de\u308a\u9053\u3092\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u304d\u308c\u3044\u306a\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3067\u63a5\u7d9a\u3092\u78ba\u4fdd\u3059\u308b\u3002.<\/li>\n  <li><strong>HTTP\/2<\/strong> \u304a\u3088\u3073HTTP\/3\u30d0\u30f3\u30c9\u30eb\u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u30e2\u30d0\u30a4\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63d0\u4f9b\u3057\u3001\u901f\u5ea6\u3092\u5411\u4e0a\u3055\u305b\u308b\u3002.<\/li>\n<\/ul>\n\n<h2>\u30a6\u30a7\u30d6\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306b\u304a\u3051\u308bTLS\u3068HTTPS\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h2>\n\n<p>\u79c1\u306f\u3053\u306e2\u3064\u306e\u8a00\u8449\u3092\u660e\u78ba\u306b\u533a\u5225\u3057\u3066\u3044\u308b\uff1a <strong>\u30c6\u30a3\u30fc\u30a8\u30eb\u30a8\u30b9<\/strong> \u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30fb\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3042\u308a\u3001HTTPS\u306fTLS\u30ec\u30a4\u30e4\u30fc\u3092\u6709\u52b9\u306b\u3057\u305f\u30a6\u30a7\u30d6\u30fb\u30b3\u30f3\u30c6\u30f3\u30c4\u7528\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3042\u308b\u3002HTTP\u306f\u30dd\u30fc\u30c880\u3067\u52d5\u4f5c\u3057\u3001\u4fdd\u8b77\u3055\u308c\u305a\u306b\u9001\u4fe1\u3055\u308c\u307e\u3059\u3002HTTPS\u306f\u30dd\u30fc\u30c8443\u3092\u4f7f\u7528\u3057\u3001TLS\u30ec\u30a4\u30e4\u30fc\u3092\u6709\u52b9\u306b\u3057\u307e\u3059\u3002 <strong>\u6697\u53f7\u5316<\/strong> \u3092\u81ea\u52d5\u7684\u306b\u4f7f\u7528\u3059\u308b\u3002TLS\u306e\u76ee\u7684\u306f\u3001\u7b2c\u4e09\u8005\u304c\u30c7\u30fc\u30bf\u3092\u8aad\u3093\u3060\u308a\u5909\u66f4\u3057\u305f\u308a\u3067\u304d\u306a\u3044\u3088\u3046\u306b\u3001\u6a5f\u5bc6\u6027\u3001\u5b8c\u5168\u6027\u3001\u771f\u6b63\u6027\u3092\u78ba\u4fdd\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u30d6\u30e9\u30a6\u30b6\u306f\u8a3c\u660e\u66f8\u3092\u4f7f\u7528\u3057\u3066\u6b63\u3057\u3044\u30b5\u30fc\u30d0\u30fc\u3092\u8a8d\u8b58\u3057\u3001\u660e\u78ba\u306a\u8b66\u544a\u3067\u30a8\u30e9\u30fc\u3092\u30d6\u30ed\u30c3\u30af\u3059\u308b\u3002\u4e8b\u696d\u8005\u306b\u3068\u3063\u3066\u306f\u3001\u6709\u52b9\u306a\u8a3c\u660e\u66f8\u3068\u304d\u308c\u3044\u306a\u30c1\u30a7\u30fc\u30f3\u304c\u306a\u3051\u308c\u3070\u3001\u4fe1\u983c\u3084\u30b3\u30f3\u30d0\u30fc\u30b8\u30e7\u30f3\u3001\u30e9\u30f3\u30ad\u30f3\u30b0\u3092\u5931\u3046\u3053\u3068\u306b\u306a\u308b\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/02\/tls-webhosting-server-7382.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u3053\u308c\u304cHTTPS\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u306e\u672c\u5f53\u306e\u4ed5\u7d44\u307f\u3060\u3002<\/h2>\n\n<p>\u8d77\u52d5\u6642\u306b\u3001\u30d6\u30e9\u30a6\u30b6\u306f\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u308b\u30d0\u30fc\u30b8\u30e7\u30f3\u3001\u6697\u53f7\u30b9\u30a4\u30fc\u30c8\u3001\u305d\u3057\u3066 <strong>\u30e9\u30f3\u30c0\u30e0\u5024<\/strong>; \u3053\u308c\u304c\u30ea\u30d7\u30ec\u30a4\u653b\u6483\u3092\u9632\u3050\u65b9\u6cd5\u3060\u3002\u30b5\u30fc\u30d0\u306fServer Hello\u3067\u5fdc\u7b54\u3057\u3001\u30b9\u30a4\u30fc\u30c8\u3092\u9078\u629e\u3057\u3066\u8a3c\u660e\u66f8\u3068\u516c\u958b\u9375\u3092\u63d0\u4f9b\u3059\u308b\u3002\u305d\u306e\u5f8c\u3001\u53cc\u65b9\u306fECDHE\u3092\u4ecb\u3057\u305f\u5171\u6709\u30bb\u30c3\u30b7\u30e7\u30f3\u9375\u306b\u5408\u610f\u3059\u308b\u3002 <strong>\u3088\u308a\u5de6\u53f3\u5bfe\u79f0<\/strong> \u30ad\u30fc\u304c\u30c7\u30fc\u30bf\u30fb\u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u4fdd\u8b77\u3059\u308b\u3002\u6700\u5f8c\u306b\u3001\u4e21\u30d1\u30fc\u30c6\u30a3\u30fc\u306f \u201eFinished \u201c\u306e\u30b7\u30b0\u30ca\u30eb\u3092\u9001\u308a\u3001\u6697\u53f7\u5316\u3092\u30c6\u30b9\u30c8\u3057\u3001\u4fdd\u8b77\u3055\u308c\u305f\u30c1\u30e3\u30f3\u30cd\u30eb\u306b\u5207\u308a\u66ff\u3048\u308b\u3002TLS 1.3\u3067\u306f\u3001\u3053\u308c\u306f\u305f\u3063\u305f1\u56de\u306eRTT\u3067\u884c\u308f\u308c\u308b\u305f\u3081\u3001\u7279\u306b\u9577\u8ddd\u96e2\u3084\u30e2\u30d0\u30a4\u30eb\u30fb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u306f\u3001\u63a5\u7d9a\u3054\u3068\u306e\u9045\u5ef6\u304c\u8457\u3057\u304f\u6e1b\u5c11\u3059\u308b\u3002.<\/p>\n\n<h2>\u6697\u53f7\u5316\uff1a\u975e\u5bfe\u79f0\u3068\u5bfe\u79f0\u306e\u51fa\u4f1a\u3044<\/h2>\n\n<p>\u79c1\u306f\u975e\u5bfe\u79f0\u6697\u53f7\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u3044\u308b\u3002 <strong>\u8a8d\u8a3c<\/strong> \u3068\u3001\u7d14\u7c8b\u306a\u30c7\u30fc\u30bf\u8ee2\u9001\u306e\u305f\u3081\u306e\u5bfe\u79f0\u624b\u7d9a\u304d\u3002\u8a3c\u660e\u66f8\u306f\u516c\u958b\u9375\u3092\u30c9\u30e1\u30a4\u30f3\u306b\u30d0\u30a4\u30f3\u30c9\u3057\u3001\u79d8\u5bc6\u9375\u306f\u53b3\u5bc6\u306b\u30b5\u30fc\u30d0\u30fc\u306b\u6b8b\u308b\u3002ECDHE\u3092\u4f7f\u3063\u3066\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u3054\u3068\u306b\u65b0\u3057\u3044\u9375\u3092\u751f\u6210\u3057\u3001\u5b8c\u5168\u306a\u524d\u65b9\u79d8\u533f\u3092\u5b9f\u73fe\u3059\u308b\u3002\u30c7\u30fc\u30bf\u30b9\u30c8\u30ea\u30fc\u30e0\u306b\u306f\u3001\u901a\u5e38AES-GCM\u304bChaCha20-Poly1305\u3092\u4f7f\u3044\u3001\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3068\u8ca0\u8377\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u306b\u5fdc\u3058\u3066\u9078\u629e\u3059\u308b\u3002\u3088\u308a\u6df1\u304f\u77e5\u308a\u305f\u3044\u5834\u5408\u306f\u3001\u4ee5\u4e0b\u306e\u30b5\u30a4\u30c8\u3067\u5b9f\u7528\u7684\u306a\u57fa\u790e\u3092\u898b\u3064\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002 <a href=\"https:\/\/webhosting.de\/ja\/%e6%9a%97%e5%8f%b7%e5%8c%96%e6%8a%80%e8%a1%93-ssl-tls-%e3%83%87%e3%83%bc%e3%82%bf%e4%bf%9d%e8%ad%b7-%e3%82%a4%e3%83%b3%e3%82%bf%e3%83%bc%e3%83%8d%e3%83%83%e3%83%88-%e3%82%bb%e3%82%ad%e3%83%a5%e3%82%a2\/\">\u6697\u53f7\u5316\u6280\u8853<\/a>, \u4e00\u65b9\u3001\u7ba1\u7406\u8005\u306f\u540c\u3058TLS\u30b9\u30bf\u30c3\u30af\u3067\u30d5\u30a1\u30a4\u30eb\u8ee2\u9001\u306bFTPS\u3092\u5b89\u5168\u306b\u4f7f\u7528\u3059\u308b\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/02\/tls-https-webhosting-5932.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\uff1aTLS 1.3\u3001HTTP\/2\u3001HTTP\/3<\/h2>\n\n<p>\u8d77\u52d5\u3055\u305b\u308b <strong>TLS 1.3<\/strong> \u306a\u305c\u306a\u3089\u3053\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306f\u3001\u3088\u308a\u5c11\u306a\u3044\u30e9\u30a6\u30f3\u30c9\u30c8\u30ea\u30c3\u30d7\u3001\u3088\u308a\u5c11\u306a\u3044\u30ec\u30ac\u30b7\u30fc\u30ed\u30fc\u30c9\u3001\u3088\u308a\u901f\u3044\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u3092\u63d0\u4f9b\u3059\u308b\u304b\u3089\u3060\u3002HTTP\/2\u3068\u3068\u3082\u306b\u3001\u8907\u6570\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c1\u3064\u306e\u63a5\u7d9a\u3067\u4e26\u884c\u3057\u3066\u6d41\u308c\u308b\u305f\u3081\u3001\u591a\u91cd\u5316\u3068\u30d8\u30c3\u30c0\u30fc\u5727\u7e2e\u306b\u3088\u3063\u3066\u6642\u9593\u3092\u7a3c\u3050\u3053\u3068\u304c\u3067\u304d\u308b\u3002QUIC\u4e0a\u306eHTTP\/3\u306f\u3001\u30e2\u30d0\u30a4\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u306e\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u3068\u30d1\u30b1\u30c3\u30c8\u30ed\u30b9\u3092\u3055\u3089\u306b\u6e1b\u3089\u3057\u3001\u30ed\u30fc\u30df\u30f3\u30b0\u6642\u306b\u63a5\u7d9a\u3092\u3088\u308a\u9577\u304f\u958b\u3044\u3066\u304a\u304f\u3002\u8a3c\u660e\u66f8\u30c1\u30a7\u30c3\u30af\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3068\u30af\u30ea\u30fc\u30f3\u306a\u30ad\u30fc\u30d7\u30a2\u30e9\u30a4\u30d6\u306f\u3001\u3053\u308c\u3092\u3046\u307e\u304f\u7d50\u3073\u3064\u3051\u308b\u3002\u5177\u4f53\u7684\u306a\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u306e\u624b\u9806\u306b\u3064\u3044\u3066\u306f\u3001\u201e<a href=\"https:\/\/webhosting.de\/ja\/tls%e3%83%8f%e3%83%b3%e3%83%89%e3%82%b7%e3%82%a7%e3%82%a4%e3%82%af%e3%81%ae%e3%83%91%e3%83%95%e3%82%a9%e3%83%bc%e3%83%9e%e3%83%b3%e3%82%b9%e3%82%92%e6%9c%80%e9%81%a9%e5%8c%96%e3%81%99%e3%82%8bquicboos\/\">\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u3068QUIC\u306e\u6700\u9069\u5316<\/a>\u201c\u3092\u3001\u79c1\u306e\u30b9\u30bf\u30c3\u30af\u306b\u9806\u3092\u8ffd\u3063\u3066\u9069\u7528\u3057\u3066\u3044\u304f\u3002.<\/p>\n\n<h2>\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306e\u6700\u9069\u5316\uff1aOCSP\u3001HSTS\u3001\u30ea\u30c0\u30a4\u30ec\u30af\u30c8<\/h2>\n\n<p>I\u30b9\u30a4\u30c3\u30c1 <strong>OCSP\u30b9\u30c6\u30fc\u30d7\u30ea\u30f3\u30b0<\/strong> \u3053\u308c\u306b\u3088\u308a\u3001\u30d6\u30e9\u30a6\u30b6\u306f\u8a3c\u660e\u66f8\u306e\u6709\u52b9\u6027\u3092\u81ea\u3089\u30c1\u30a7\u30c3\u30af\u3059\u308b\u5fc5\u8981\u304c\u306a\u304f\u306a\u308a\u307e\u3059\u3002\u30c1\u30b1\u30c3\u30c8\u306b\u3088\u308b\u30bb\u30c3\u30b7\u30e7\u30f3\u518d\u958b\u306f\u3001\u518d\u63a5\u7d9a\u3092\u5927\u5e45\u306b\u77ed\u7e2e\u3057\u3001\u30d4\u30fc\u30af\u8ca0\u8377\u6642\u306eCPU\u6642\u9593\u3092\u7bc0\u7d04\u3057\u307e\u3059\u3002\u6b63\u3057\u304f\u8a2d\u5b9a\u3055\u308c\u305fHSTS\u30d8\u30c3\u30c0\u30fc\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306bHTTPS\u3092\u5f37\u5236\u7684\u306b\u4f7f\u7528\u3055\u305b\u3001\u30c0\u30a6\u30f3\u30b0\u30ec\u30fc\u30c9\u3084\u6df7\u5408\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u9632\u304e\u307e\u3059\u3002\u307e\u305f\u3001\u6642\u9593\u3092\u7bc0\u7d04\u3059\u308b\u305f\u3081\u306b\u3001http:\/\/ \u304b\u3089 https:\/\/ \u3078\u306e\u76f4\u63a5\u8ee2\u9001\u3092\u5358\u4e00\u306e 301-hop \u3067\u4fdd\u8a3c\u3057\u307e\u3059\u3002\u9762\u5012\u306a\u30ab\u30b9\u30b1\u30fc\u30c9\u3092\u907f\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u308c\u3070\u3001\u5927\u304d\u306a\u5229\u76ca\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u201e<a href=\"https:\/\/webhosting.de\/ja\/https%e3%81%ae%e3%83%aa%e3%83%80%e3%82%a4%e3%83%ac%e3%82%af%e3%83%88%e3%81%ae%e3%83%91%e3%83%95%e3%82%a9%e3%83%bc%e3%83%9e%e3%83%b3%e3%82%b9%e3%81%8c%e3%80%81%e8%aa%a4%e3%81%a3%e3%81%9f%e8%a8%ad\/\">HTTPS\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3092\u6b63\u3057\u304f\u8a2d\u5b9a\u3059\u308b<\/a>\u201c\u3092\u5b9f\u8df5\u7684\u306b\u601d\u3044\u51fa\u3055\u305b\u308b\u3002.<\/p>\n\n<h2>\u8a3c\u660e\u66f8\uff1aDV\u3001OV\u3001EV\u3001ECC<\/h2>\n\n<p>\u307b\u3068\u3093\u3069\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u5fc5\u8981\u306a\u306e\u306f <strong>DV\u8a3c\u660e\u66f8<\/strong>, \u306a\u305c\u306a\u3089\u3001\u30c9\u30e1\u30a4\u30f3\u30fb\u30c1\u30a7\u30c3\u30af\u306f\u9ad8\u901f\u3067\u3001\u81ea\u52d5\u66f4\u65b0\u306f\u4fe1\u983c\u3067\u304d\u308b\u304b\u3089\u3067\u3042\u308b\u3002OV\u3068EV\u306fID\u30c1\u30a7\u30c3\u30af\u3092\u62e1\u5f35\u3057\u3001\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u74b0\u5883\u3067\u306e\u900f\u660e\u6027\u3092\u63d0\u4f9b\u3059\u308b\u304c\u3001\u30b9\u30d4\u30fc\u30c9\u9762\u3067\u306e\u5229\u70b9\u306f\u306a\u3044\u3002\u65b0\u3057\u3044\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u306e\u5834\u5408\u3001\u79c1\u306fECC\u9375\u3092\u597d\u3080\u3002ECC\u9375\u306f\u3001\u540c\u30ec\u30d9\u30eb\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30fc\u3067\u3001\u53e4\u5178\u7684\u306aRSA\u9375\u3088\u308a\u3082\u77ed\u3044\u9375\u3068\u9ad8\u901f\u306a\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u3092\u63d0\u4f9b\u3059\u308b\u304b\u3089\u3060\u3002\u4e2d\u9593\u8a3c\u660e\u66f8\u3092\u542b\u3080\u30af\u30ea\u30fc\u30f3\u306a\u8a3c\u660e\u66f8\u30c1\u30a7\u30fc\u30f3\u306f\u91cd\u8981\u3067\u3042\u308a\u3001\u305d\u3046\u3067\u306a\u3051\u308c\u3070\u30b3\u30b9\u30c8\u306e\u304b\u304b\u308b\u63a5\u7d9a\u969c\u5bb3\u306e\u30ea\u30b9\u30af\u304c\u3042\u308b\u3002\u65e9\u3044\u6bb5\u968e\u3067\u66f4\u65b0\u3092\u8a08\u753b\u3057\u3001\u672c\u756a\u904b\u7528\u306b\u5207\u308a\u66ff\u3048\u308b\u524d\u306b\u30b9\u30c6\u30fc\u30b8\u30f3\u30b0\u3067\u30c7\u30d7\u30ed\u30a4\u3092\u30c6\u30b9\u30c8\u3057\u307e\u3059\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/02\/tls-https-webhosting-sicherheit-4829.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30bb\u30c3\u30b7\u30e7\u30f3\u518d\u958b\u30680-RTT\u3092\u5b89\u5168\u306b\u4f7f\u3046<\/h2>\n\n<p>\u79c1\u306f\u3001\u30bb\u30c3\u30b7\u30e7\u30f3ID\u3084\u30c1\u30b1\u30c3\u30c8\u3092\u6709\u52b9\u5316\u3059\u308b\u3053\u3068\u3067\u3001\u5b8c\u5168\u306a\u30bb\u30c3\u30b7\u30e7\u30f3ID\u3092\u6301\u305f\u306a\u3044\u30ea\u30d4\u30fc\u30bf\u30fc\u304c\u3001\u30bb\u30c3\u30b7\u30e7\u30f3ID\u3084\u30c1\u30b1\u30c3\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002 <strong>\u63e1\u624b<\/strong> \u306f\u7d99\u7d9a\u3067\u304d\u308b\u3002TLS 1.3\u306e0-RTT\u306f\u3001\u518d\u958b\u5f8c\u306e\u6700\u521d\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9ad8\u901f\u5316\u3059\u308b\u304c\u3001\u30ea\u30d7\u30ec\u30a4\u30ea\u30b9\u30af\u3092 \u306f\u3089\u3080\u3002\u79c1\u306f\u3001\u518d\u78ba\u8a8d\u5f8c\u306b\u526f\u4f5c\u7528\u306e\u3042\u308bPOST\u306e\u3088\u3046\u306a\u91cd\u8981\u306a\u30a2\u30af\u30b7\u30e7\u30f3\u3060\u3051\u3092\u8a31\u53ef\u3059\u308b\u3002\u3053\u308c\u306b\u3088\u3063\u3066\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u72a0\u7272\u306b\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u5076\u767a\u7684\u306a\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u30b9\u30d4\u30fc\u30c9\u3092\u9054\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002.<\/p>\n\n<h2>\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3068\u6697\u53f7: AES-NI vs ChaCha20<\/h2>\n\n<p>x86\u30b5\u30fc\u30d0\u30fc\u3067\u306f <strong>AES-NI<\/strong>, \u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u30fb\u30a2\u30af\u30bb\u30e9\u30ec\u30fc\u30b7\u30e7\u30f3\u306b\u3088\u3063\u3066AES-GCM\u304c\u975e\u5e38\u306b\u9ad8\u901f\u306b\u306a\u308b\u304b\u3089\u3060\u3002\u4e00\u90e8\u306eARM\u30b7\u30b9\u30c6\u30e0\u306a\u3069\u3001AES\u30a2\u30af\u30bb\u30e9\u30ec\u30fc\u30b7\u30e7\u30f3\u304c\u306a\u3044\u30c7\u30d0\u30a4\u30b9\u3067\u306f\u3001\u4e00\u8cab\u3057\u3066\u9ad8\u901f\u3092\u5b9f\u73fe\u3059\u308bChaCha20-Poly1305\u3092\u9078\u3093\u3067\u3044\u308b\u3002\u79c1\u306f\u6700\u65b0\u306e\u30b9\u30a4\u30fc\u30c8\u3092\u512a\u5148\u3057\u3001RC4\u30843DES\u306e\u3088\u3046\u306a\u30ec\u30ac\u30b7\u30fc\u30fb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u7121\u52b9\u306b\u3057\u3001ECDHE\u3067\u5b8c\u5168\u306a\u524d\u65b9\u79d8\u533f\u3092\u7dad\u6301\u3057\u3066\u3044\u307e\u3059\u3002\u5b9f\u969b\u306e\u30e6\u30fc\u30b6\u30fc\u30c7\u30fc\u30bf\u306b\u3088\u308b\u5b9a\u671f\u7684\u306a\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u306b\u3088\u308a\u3001\u512a\u5148\u9806\u4f4d\u304c\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3068\u4e00\u81f4\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u4fdd\u8b77\u6a5f\u80fd\u3092\u5931\u3046\u3053\u3068\u306a\u304f\u3001\u63a5\u7d9a\u306e\u5b89\u5168\u6027\u3092\u4fdd\u3064\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/02\/tls_https_office_nacht_7832.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>TLS\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u76e3\u8996\u3068\u6e2c\u5b9a<\/h2>\n\n<p>\u6e2c\u308b <strong>\u9045\u5ef6\u6642\u9593<\/strong> \u306a\u305c\u306a\u3089\u3001\u6700\u9069\u5316\u306f\u30c7\u30fc\u30bf\u304c\u306a\u3051\u308c\u3070\u898b\u3048\u306a\u3044\u304b\u3089\u3067\u3042\u308b\u3002\u91cd\u8981\u306a\u306e\u306f\u3001\u6700\u521d\u306e\u30d0\u30a4\u30c8\u307e\u3067\u306e\u6642\u9593\u30011\u79d2\u3042\u305f\u308a\u306e\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u56de\u6570\u3001\u518d\u958b\u7387\u3067\u3042\u308b\u3002\u79c1\u306f\u3001\u30b3\u30fc\u30eb\u30c9\u30b9\u30bf\u30fc\u30c8\u6e2c\u5b9a\uff08\u30ad\u30e3\u30c3\u30b7\u30e5\u306a\u3057\uff09\u3068\u30a6\u30a9\u30fc\u30e0\u30b9\u30bf\u30fc\u30c8\u6e2c\u5b9a\uff08\u518d\u958b\u3042\u308a\uff09\u3092\u5206\u3051\u3066\u3001\u5b9f\u969b\u306e\u5229\u76ca\u3092\u8996\u899a\u5316\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002\u7570\u5e38\u5024\u306f\u3001\u6b20\u9665\u306e\u3042\u308b\u30a4\u30f3\u30bf\u30fc\u30df\u30c7\u30a3\u30a8\u30a4\u30c8\u3084\u30d6\u30ed\u30c3\u30af\u3055\u308c\u305fOCSP\u30ec\u30b9\u30dd\u30f3\u30c0\u30fc\u306a\u3069\u306e\u539f\u56e0\u307e\u3067\u9061\u308b\u3002\u4ee5\u4e0b\u306e\u8868\u306f\u3001\u79c1\u304c\u76e3\u67fb\u3067\u5b9a\u671f\u7684\u306b\u30c1\u30a7\u30c3\u30af\u3057\u3066\u3044\u308b\u4e3b\u306a\u76f8\u9055\u70b9\u3092\u307e\u3068\u3081\u305f\u3082\u306e\u3067\u3042\u308b\u3002.<\/p>\n\n<table>\n  <thead>\n    <tr>\n      <th>\u30c8\u30d4\u30c3\u30af<\/th>\n      <th>TLS 1.2<\/th>\n      <th>TLS 1.3<\/th>\n      <th>\u52b9\u679c<\/th>\n    <\/tr>\n  <\/thead>\n  <tbody>\n    <tr>\n      <td><strong>\u63e1\u624b<\/strong>-RTT<\/td>\n      <td>2 RTT<\/td>\n      <td>1 RTT<\/td>\n      <td>\u63a5\u7d9a\u8a2d\u5b9a\u3054\u3068\u306e\u5f85\u3061\u6642\u9593\u306e\u77ed\u7e2e<\/td>\n    <\/tr>\n    <tr>\n      <td>\u6697\u53f7\u30b9\u30a4\u30fc\u30c8<\/td>\n      <td>\u591a\u304f\u306e\u30aa\u30d7\u30b7\u30e7\u30f3<\/td>\n      <td>\u6d41\u7dda\u578b<\/td>\n      <td>\u3088\u308a\u5c11\u306a\u3044\u30cd\u30b4\u30b7\u30a8\u30fc\u30b7\u30e7\u30f3\u3001\u3088\u308a\u5c11\u306a\u3044CPU<\/td>\n    <\/tr>\n    <tr>\n      <td>\u30bb\u30c3\u30b7\u30e7\u30f3\u518d\u958b<\/td>\n      <td>PSK\/\u30bb\u30c3\u30b7\u30e7\u30f3ID<\/td>\n      <td>0-RTT\/PSK<\/td>\n      <td>\u30af\u30a4\u30c3\u30af\u30b9\u30bf\u30fc\u30c8<\/td>\n    <\/tr>\n    <tr>\n      <td><strong>\u30d5\u30a9\u30ef\u30fc\u30c9\u30b7\u30fc\u30af\u30ec\u30b7\u30fc<\/strong><\/td>\n      <td>\u30aa\u30d7\u30b7\u30e7\u30f3<\/td>\n      <td>\u30b9\u30bf\u30f3\u30c0\u30fc\u30c9<\/td>\n      <td>\u65e7\u9332\u97f3\u306e\u4fdd\u8b77\u5f37\u5316<\/td>\n    <\/tr>\n    <tr>\n      <td>HTTP\u30b9\u30bf\u30c3\u30af<\/td>\n      <td>http\/1.1 &amp; http\/2<\/td>\n      <td>http\/2\u304a\u3088\u3073http\/3<\/td>\n      <td>\u591a\u91cd\u5316\u3068QUIC\u306e\u5229\u70b9<\/td>\n    <\/tr>\n  <\/tbody>\n<\/table>\n\n<h2>\u30b9\u30d4\u30fc\u30c9\u3092\u640d\u306a\u3046\u3053\u3068\u306a\u304f\u5b89\u5168\u6027\u3092\u9ad8\u3081\u308b<\/h2>\n\n<p>\u3092\u30bb\u30c3\u30c8\u3057\u305f\u3002 <strong>\u3053\u3046\u305d\u304f\u304d\u3058\u3087\u3046\u307b\u3046\u305d\u3046\u3061\u3057\u304d<\/strong> \u30d6\u30e9\u30a6\u30b6\u304c\u53b3\u5bc6\u306b\u6697\u53f7\u5316\u3055\u308c\u305f\u65b9\u6cd5\u3067\u63a5\u7d9a\u3059\u308b\u3088\u3046\u306b\u3001\u5341\u5206\u306aMax-Age\u3001IncludeSubDomains\u3001\u304a\u3088\u3073\u30aa\u30d7\u30b7\u30e7\u30f3\u306ePreload\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u30b3\u30f3\u30c6\u30f3\u30c4\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30dd\u30ea\u30b7\u30fc\u3068\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u306f\u3001\u30ed\u30fc\u30c7\u30a3\u30f3\u30b0\u6642\u9593\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u4f4e\u4e0b\u3055\u305b\u308b\u3088\u3046\u306a\u6df7\u5408\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u6392\u9664\u3059\u308b\u3088\u3046\u306a\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002\u6b63\u3057\u3044\u4e2d\u9593\u30c1\u30a7\u30fc\u30f3\u3092\u4f7f\u7528\u3057\u3001OCSP\u306e\u6709\u52b9\u6027\u3092\u76e3\u8996\u3059\u308b\u3053\u3068\u3067\u3001\u30b9\u30c6\u30fc\u30d7\u30ea\u30f3\u30b0\u30a8\u30e9\u30fc\u3092\u56de\u907f\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u5f31\u3044\u30d7\u30ed\u30c8\u30b3\u30eb\uff08TLS 1.0\/1.1\uff09\u3092\u5236\u9650\u3057\u3001\u6697\u53f7\u306e\u512a\u5148\u9806\u4f4d\u3092\u7121\u99c4\u306e\u306a\u3044\u3082\u306e\u306b\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3092\u4f4e\u304f\u6291\u3048\u3001\u653b\u6483\u5bfe\u8c61\u7bc4\u56f2\u3092\u72ed\u3081\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u7d20\u65e9\u304f\u53d7\u3051\u53d6\u308c\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2026\/02\/webhosting_tls_https_9327.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>SNI\u3001ALPN\u3001\u30de\u30eb\u30c1\u30c9\u30e1\u30a4\u30f3\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306e\u9069\u5207\u306a\u8a2d\u5b9a<\/h2>\n<p>\u79c1\u306f\u3053\u3046\u3057\u3066\u3044\u308b\u3002 <strong>\u30a8\u30b9\u30a8\u30cc\u30a2\u30a4<\/strong> (Server Name Indication\uff09\u3092\u4f7f\u7528\u3057\u3066\u30011\u3064\u306eIP\u3067\u8907\u6570\u306e\u8a3c\u660e\u66f8\u3092\u914d\u4fe1\u3057\u3066\u3044\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30db\u30b9\u30c8\u540d\u306b\u5fdc\u3058\u3066\u9069\u5207\u306a\u8a3c\u660e\u66f8\u3092\u914d\u4fe1\u3057\u3001\u30df\u30b9\u30de\u30c3\u30c1\u3092\u907f\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u306b\u3064\u3044\u3066 <strong>ALPN<\/strong> \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u8ffd\u52a0\u306e\u30e9\u30a6\u30f3\u30c9\u30c8\u30ea\u30c3\u30d7\u306a\u3057\u3067HTTP\/2\u307e\u305f\u306fHTTP\/3\u306b\u5207\u308a\u66ff\u308f\u308b\u3088\u3046\u306b\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30d7\u30ed\u30c8\u30b3\u30eb\uff08h2\/h3\uff09\u3092\u4e26\u884c\u3057\u3066\u30cd\u30b4\u30b7\u30a8\u30fc\u30c8\u3057\u307e\u3059\u3002\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\u30fc\u3001CDN\u3001Origin\u3092\u4ecb\u3057\u305f\u4e00\u8cab\u3057\u305fALPN\u30b3\u30f3\u30d5\u30a3\u30ae\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u306f\u91cd\u8981\u3067\u3001\u305d\u3046\u3057\u306a\u3044\u3068\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u4e0d\u5fc5\u8981\u306bHTTP\/1.1\u306b\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u3057\u3066\u3057\u307e\u3046\u3002\u5927\u898f\u6a21\u306a\u30de\u30eb\u30c1\u30c6\u30ca\u30f3\u30c8\u30fb\u30b9\u30bf\u30c3\u30af\u306e\u5834\u5408\u3001\u79c1\u306f\u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9\u3068SAN\u8a3c\u660e\u66f8\u3092\u7684\u3092\u7d5e\u3063\u305f\u65b9\u6cd5\u3067\u4f7f\u7528\u3057\u3001\u30c1\u30a7\u30fc\u30f3\u3092\u77ed\u304f\u4fdd\u3061\u3001\u30db\u30b9\u30c8\u3092\u8ad6\u7406\u7684\u306b\u5206\u6563\u3055\u305b\u308b\u3053\u3068\u3067\u3001\u30c1\u30a7\u30fc\u30f3\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3092\u5c0f\u3055\u304f\u4fdd\u3061\u3001\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u3092\u7d20\u65e9\u304f\u958b\u59cb\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002.<\/p>\n\n<h2>ECDSA\u3068RSA\u306e\u4e26\u5217\u51e6\u7406\uff1a\u30c1\u30a7\u30fc\u30f3\u9577\u3001\u30d0\u30a4\u30c8\u6570\u3001\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af<\/h2>\n<p>\u79c1\u306f\u3053\u3046\u8a00\u3063\u305f\u3002 <strong>\u4e8c\u91cd\u8a3c\u66f8<\/strong> (ECDSA\u3068RSA\uff09\u306b\u3088\u308a\u3001\u6700\u65b0\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u3088\u308a\u30b3\u30f3\u30d1\u30af\u30c8\u306aECDSA\u7f72\u540d\u3092\u4f7f\u7528\u3067\u304d\u3001\u53e4\u3044\u30c7\u30d0\u30a4\u30b9\u306fRSA\u3067\u4e92\u63db\u6027\u3092\u4fdd\u3064\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u9001\u4fe1\u3055\u308c\u308b\u30cf\u30f3\u30c9\u30b7\u30a7\u30fc\u30af\u30fb\u30d0\u30a4\u30c8\u6570\u3092\u6e1b\u3089\u3057\u3001\u7f72\u540d\u691c\u8a3c\u3092\u9ad8\u901f\u5316\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u79c1\u306f <strong>\u4e2d\u9593\u30c1\u30a7\u30fc\u30f3<\/strong> \u6700\u9069\u5316\uff08\u4e2d\u9593\u9375\u306e\u91cd\u8907\u306a\u3057\u3001\u6b63\u3057\u3044\u9806\u5e8f\uff09\u306b\u3088\u308a\u3001\u8ffd\u52a0\u306e\u691c\u7d22\u304c\u4e0d\u8981\u306b\u306a\u308b\u3002\u53ef\u80fd\u3067\u3042\u308c\u3070\u30013072\/4096\u30d3\u30c3\u30c8\u306e\u5927\u304d\u306aRSA\u9375\u3067\u306f\u306a\u304f\u3001256\u30d3\u30c3\u30c8\u306eECC\u9375\u3092\u4f7f\u3046\u3002\u3053\u308c\u304c\u4e92\u63db\u6027\u3068\u30b9\u30d4\u30fc\u30c9\u3092\u4e21\u7acb\u3055\u305b\u308b\u65b9\u6cd5\u3060\u3002.<\/p>\n\n<h2>\u5931\u6557\u306e\u306a\u3044\u8a3c\u660e\u66f8\u7ba1\u7406\u3068\u81ea\u52d5\u5316<\/h2>\n<p>\u79c1\u306f\u66f4\u65b0\u3092\u77ed\u6642\u9593\u3067\u81ea\u52d5\u5316\u3057\u3066\u3044\u308b\u3002 <strong>\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb<\/strong>, \u65b0\u3057\u3044\u8a3c\u660e\u66f8\u306f\u3001\u30b9\u30c6\u30fc\u30b8\u30f3\u30b0\u306e\u65e9\u3044\u6bb5\u968e\u3067\u914d\u5e03\u3057\u3001\u6bb5\u968e\u7684\u306b\u5c55\u958b\u3057\u3066\u3044\u304f\u3002\u79d8\u5bc6\u9375\u306f\u672c\u5f53\u306b\u5fc5\u8981\u306a\u30b7\u30b9\u30c6\u30e0\u3060\u3051\u306b\u6b8b\u3057\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u306f\u53b3\u5bc6\u306b\u6697\u53f7\u5316\u3059\u308b\u3002. <strong>\u30c1\u30b1\u30c3\u30c8\u30ad\u30fc<\/strong> \u3068\u8a3c\u660e\u66f8\u306e\u8cc7\u6599\u3092\u8a08\u753b\u7684\u304b\u3064\u6587\u66f8\u5316\u3055\u308c\u305f\u65b9\u6cd5\u3067\u4f5c\u6210\u3059\u308b\u3002\u30aa\u30d7\u30b7\u30e7\u30f3\u3068\u3057\u3066\u3001\u30b9\u30c6\u30fc\u30d7\u30ea\u30f3\u30b0\u76e3\u8996\u304c\u78ba\u5b9f\u306b\u5b9f\u884c\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3001\u8a3c\u660e\u66f8\u306b \u201emust-staple \u201c\u306e\u30de\u30fc\u30af\u3092\u4ed8\u3051\u3001\u65b0\u3057\u3044OCSP\u3092\u6301\u305f\u306a\u3044\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u6700\u521d\u306b\u63a5\u7d9a\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u3001\u52b9\u679c\u7684\u306b\u5931\u52b9\u3092\u57f7\u884c\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3002\u79c1\u306f\u3001\u8a3c\u660e\u66f8\u306e\u900f\u660e\u6027\u30ed\u30b0\u3092\u76e3\u8996\u3057\u3001\u4e0d\u6b63\u78ba\u306a\u554f\u984c\u3092\u65e9\u3044\u6bb5\u968e\u3067\u8a8d\u8b58\u3059\u308b\u3002.<\/p>\n\n<h2>\u30af\u30e9\u30b9\u30bf\u306b\u304a\u3051\u308b\u30c1\u30b1\u30c3\u30c8\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u3001\u30ad\u30fc\u306e\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3<\/h2>\n<p>\u30b7\u30a7\u30a2\u3059\u308b <strong>\u30bb\u30c3\u30b7\u30e7\u30f3\u30ad\u30e3\u30c3\u30b7\u30e5<\/strong> \u307e\u305f\u3001\u518d\u958b\u304c\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\u30fc\u306e\u5f8c\u308d\u3067\u3082\u6a5f\u80fd\u3059\u308b\u3088\u3046\u306b\u3001\u3059\u3079\u3066\u306e\u30ce\u30fc\u30c9\u3067\u30c1\u30b1\u30c3\u30c8\u30ad\u30fc\u3092\u5171\u6709\u3057\u307e\u3059\uff08\u4f8b\u3048\u3070Redis\u3084Memcached\u7d4c\u7531\uff09\u3002\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u30bb\u30c3\u30b7\u30e7\u30f3\u304c\u30ad\u30e3\u30f3\u30bb\u30eb\u3055\u308c\u306a\u3044\u3088\u3046\u306b\u3001\u4f59\u88d5\u3092\u6301\u3063\u305f\u30aa\u30fc\u30d0\u30fc\u30e9\u30c3\u30d7\u30a6\u30a3\u30f3\u30c9\u30a6\u3067\u30c1\u30b1\u30c3\u30c8\u30ad\u30fc\u306e\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u63d0\u4f9b\u3059\u308b\u3002 \u8aad\u307f\u51fa\u3057\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u306f\u9078\u629e\u7684\u306b0-RTT\u3092\u8a31\u53ef\u3059\u308b\u3002\u30a2\u30f3\u30c1\u30ea\u30d7\u30ec\u30a4\u30a6\u30a3\u30f3\u30c9\u30a6\u3068\u30ec\u30fc\u30c8\u5236\u9650\u3067\u60aa\u7528\u3092\u9632\u3050\u3002\u30ed\u30fc\u30ea\u30f3\u30b0\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306e\u5834\u5408\u306f\u3001\u518d\u958b\u30af\u30a9\u30fc\u30bf\u304c\u5d29\u58ca\u3057\u306a\u3044\u3088\u3046\u306b\u3001\u307e\u305fCPU\u8ca0\u8377\u304c\u8a08\u7b97\u53ef\u80fd\u306a\u307e\u307e\u306b\u306a\u308b\u3088\u3046\u306b\u30b7\u30fc\u30b1\u30f3\u30b9\u3092\u8a08\u753b\u3059\u308b\u3002.<\/p>\n\n<h2>TLS\u30aa\u30d5\u30ed\u30fc\u30c9\u3001mTLS\u3001\u30aa\u30ea\u30b8\u30f3\u4fdd\u8b77<\/h2>\n<p>TLS\u3092\u4f7f\u3046\u5834\u6240\u306f\u610f\u8b58\u7684\u306b\u6c7a\u3081\u3066\u3044\u308b <strong>\u7d42\u4e86<\/strong>\u30a2\u30d7\u30ea\u4e0a\u3001\u30a4\u30f3\u30b0\u30ec\u30b9\/\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\u30fc\u4e0a\u3001\u307e\u305f\u306fCDN\u30a8\u30c3\u30b8\u4e0a\u3067\u76f4\u63a5\u884c\u3046\u3002\u30aa\u30d5\u30ed\u30fc\u30c9\u306f\u30a2\u30d7\u30ea\u306b\u7a7a\u6c17\u3092\u4f5c\u308a\u307e\u3059\u304c\u3001\u6b21\u306e\u3053\u3068\u304c\u5fc5\u8981\u3067\u3059\u3002 <strong>\u30aa\u30ea\u30b8\u30f3\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3<\/strong>. .Edge\u3068Origin\u306e\u9593\u3067\u306f\u3001\u7406\u60f3\u7684\u306b\u306fTLS\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002 <strong>\u30a8\u30e0\u30c6\u30a3\u30fc\u30a8\u30eb\u30a8\u30b9<\/strong>, \u8a31\u53ef\u3055\u308c\u305f\u30a8\u30c3\u30b8\u3060\u3051\u304c\u63a5\u7d9a\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3002\u5185\u90e8\u30eb\u30fc\u30c8\u306b\u306f\u5236\u9650\u4ed8\u304d\u306e\u6697\u53f7\u30b9\u30a4\u30fc\u30c8\u3092\u4fdd\u5b58\u3057\u3001\u9069\u5207\u306a\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3067\u30ad\u30fc\u30d7\u30a2\u30e9\u30a4\u30d6\u3092\u6709\u52b9\u306b\u3057\u3001\u30a2\u30a4\u30c9\u30eb\u30b3\u30b9\u30c8\u3092\u5236\u9650\u3059\u308b\u305f\u3081\u306b\u30ea\u30bb\u30c3\u30c8\u3092\u76e3\u8996\u3057\u3066\u3044\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u7121\u99c4\u306b\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u30a8\u30c3\u30b8\u306e\u80cc\u5f8c\u3067\u30c7\u30fc\u30bf\u3092\u4fdd\u8b77\u3057\u7d9a\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002.<\/p>\n\n<h2>\u5fae\u8abf\u6574\uff1a\u30ec\u30b3\u30fc\u30c9\u3001\u30d0\u30c3\u30d5\u30a1\u3001\u512a\u5148\u9806\u4f4d<\/h2>\n<p>\u79c1\u306fTLS\u3092<strong>\u30ec\u30b3\u30fc\u30c9\u30b5\u30a4\u30ba<\/strong> \u30c0\u30a4\u30ca\u30df\u30c3\u30af\uff1a\u521d\u671f\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\uff08HTML\/CSS\uff09\u306e\u305f\u3081\u306e\u5c0f\u3055\u306a\u30ec\u30b3\u30fc\u30c9\u3001\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\uff08\u753b\u50cf\u3001\u30d5\u30a1\u30a4\u30eb\uff09\u306e\u305f\u3081\u306e\u5927\u304d\u306a\u30ec\u30b3\u30fc\u30c9\u3002\u79c1\u306f\u3001\u201e\u5c0f\u3055\u306a\u30ec\u30b3\u30fc\u30c9 \u201c\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u3001Nagle\/TCP-CORK\u3092\u610f\u56f3\u7684\u306b\u4f7f\u3063\u305f\u308a\u3001\u7121\u52b9\u306b\u3057\u305f\u308a\u3057\u3066\u3044\u308b\u3002HTTP\/2\u3067\u306f\u3001\u79c1\u306f\u610f\u5473\u306e\u3042\u308b <strong>\u512a\u5148\u9806\u4f4d<\/strong> (\u30af\u30ea\u30c6\u30a3\u30ab\u30eb\u306aCSS\/JS\u304c\u5148\uff09\u3001\u30d8\u30c3\u30c0\u30fc\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3092\u4f4e\u304f\u4fdd\u3064\u305f\u3081\u306bQPACK\/HPACK\u5727\u7e2e\u3092\u898b\u3066\u3044\u308b\u3002HTTP\/3\u3067\u306f\u3001\u8f3b\u8f33\u3068\u30b9\u30c8\u30ea\u30fc\u30e0\u306e\u5236\u9650\u3092\u8abf\u6574\u3057\u3001\u30d8\u30c3\u30c9\u30aa\u30d6\u30e9\u30a4\u30f3\u306e\u30d6\u30ed\u30c3\u30ad\u30f3\u30b0\u3092\u767a\u751f\u3055\u305b\u308b\u3053\u3068\u306a\u304f\u63a5\u7d9a\u304c\u5b89\u5b9a\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002\u91cd\u8981\uff1a\u3053\u308c\u3089\u306e\u5fae\u8abf\u6574\u306f\u3001\u30e9\u30dc\u5185\u3060\u3051\u3067\u306a\u304f\u3001\u5b9f\u969b\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u5bfe\u3057\u3066\u6e2c\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n<h2>\u4e92\u63db\u6027\u3068\u5b89\u5168\u306a\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af<\/h2>\n<p>\u6301\u3063\u3066\u3044\u308b <strong>TLS 1.2<\/strong> \u306f\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u3068\u3057\u3066\u6709\u52b9\u3067\u3059\u304c\u3001\u6700\u65b0\u306e\u30b9\u30a4\u30fc\u30c8\uff08ECDHE\u3001AES-GCM\/ChaCha20\uff09\u3092\u4f7f\u7528\u3057\u3001\u5b89\u5168\u3067\u306a\u3044\u30ec\u30ac\u30b7\u30fc\u30c7\u30fc\u30bf\u304c\u306a\u3044\u5834\u5408\u306b\u9650\u3089\u308c\u307e\u3059\u3002\u53e4\u3044Android\u30c7\u30d0\u30a4\u30b9\u3084\u7d44\u307f\u8fbc\u307f\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u3053\u306e\u6069\u6075\u3092\u53d7\u3051\u3001\u30e2\u30c0\u30f3\u30d6\u30e9\u30a6\u30b6\u306fTLS 1.3\u3092\u4f7f\u3046\u3002TLS_FALLBACK_SCSV\u3068\u53b3\u5bc6\u306a\u6697\u53f7\u30ea\u30b9\u30c8\u3067\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u30c0\u30a6\u30f3\u30b0\u30ec\u30fc\u30c9\u3092\u9632\u304e\u307e\u3059\u3002\u96fb\u5b50\u30e1\u30fc\u30eb\u3084API\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u6700\u4f4e\u8981\u4ef6\u3092\u660e\u78ba\u306b\u6587\u66f8\u5316\u3057\u3001\u30b5\u30d7\u30e9\u30a4\u30ba\u304c\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002\u3053\u3046\u3057\u3066\u3001\u901a\u4fe1\u7bc4\u56f2\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30fb\u30ec\u30d9\u30eb\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u4fdd\u3063\u3066\u3044\u308b\u3002.<\/p>\n\n<h2>\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\uff1a\u64cd\u4f5c\u4e0a\u306e\u5178\u578b\u7684\u306a\u969c\u5bb3<\/h2>\n<p>\u6700\u521d\u306b\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u30fb\u30a8\u30e9\u30fc\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b <strong>\u6642\u9593\u504f\u5dee<\/strong> \u30b5\u30fc\u30d0(NTP)\u4e0a\u3067\u3001\u4e0d\u6b63\u306b\u30bd\u30fc\u30c8\u3055\u308c\u305f\u30c1\u30a7\u30fc\u30f3\u3068 VirtualHosts \u306e SNI \u306e\u4e0d\u4e00\u81f4\u304c\u7d9a\u304d\u307e\u3059\u3002HTTP\/2\u304c\u4e88\u671f\u305b\u305a\u5931\u6557\u3059\u308b\u5834\u5408\u3001ALPN\u304c\u898b\u3064\u304b\u3089\u306a\u3044\u304b\u3001h2\u3092\u901a\u904e\u3057\u306a\u3044\u4e2d\u9593\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u304c\u539f\u56e0\u3067\u3042\u308b\u3053\u3068\u304c\u591a\u3044\u3002\u30ec\u30a4\u30c6\u30f3\u30b7\u304c\u7a81\u7136\u5897\u52a0\u3057\u305f\u5834\u5408\u3001\u79c1\u306f\u671f\u9650\u5207\u308c\u306eOCSP\u30b9\u30bf\u30c3\u30af\u3084\u30d6\u30ed\u30c3\u30af\u3055\u308c\u305fOCSP\u30ec\u30b9\u30dd\u30f3\u30c0\u30fc\u3092\u63a2\u3059\u3002\u518d\u958b\u30c9\u30ed\u30c3\u30d7\u306f\u3001\u30c1\u30b1\u30c3\u30c8\u30fb\u30ad\u30fc\u30fb\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u3084\u5171\u6709\u3055\u308c\u3066\u3044\u306a\u3044\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u539f\u56e0\u3067\u3042\u308b\u3053\u3068\u304c\u591a\u3044\u3002no shared cipher \u201e\u3084 \u201cunknown ca \u201e\u306e\u30ed\u30b0\u306f\u3001\u30c1\u30a7\u30fc\u30f3\u304c\u3069\u3053\u3067\u9014\u5207\u308c\u3066\u3044\u308b\u304b\u3092\u660e\u78ba\u306b\u793a\u3057\u3066\u304f\u308c\u308b\u3002.<\/p>\n\n<h2>\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3068\u672a\u6765\uff1aECH\u3068\u30dd\u30b9\u30c8\u91cf\u5b50\u30b9\u30a4\u30c3\u30c1<\/h2>\n<p>\u79c1\u306f\u4fdd\u6301\u3057\u307e\u3059 <strong>ECH<\/strong> (Encrypted ClientHello\uff09\u306b\u3088\u308a\u3001\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u3067\u30db\u30b9\u30c8\u540d\u304c\u30d7\u30ec\u30fc\u30f3\u30c6\u30ad\u30b9\u30c8\u3067\u8868\u793a\u3055\u308c\u306a\u304f\u306a\u3063\u305f\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u7279\u306b\u5171\u6709\u30a4\u30f3\u30d5\u30e9\u306b\u304a\u3051\u308b\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u304c\u5f37\u5316\u3055\u308c\u308b\u3002\u5c06\u6765\u7684\u306b\u306f <strong>\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u30fb\u30d7\u30ed\u30bb\u30b9<\/strong> 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