{"id":18801,"date":"2026-04-07T11:50:06","date_gmt":"2026-04-07T09:50:06","guid":{"rendered":"https:\/\/webhosting.de\/tls-cipher-suites-hosting-sicherheit-serverboost\/"},"modified":"2026-04-07T11:50:06","modified_gmt":"2026-04-07T09:50:06","slug":"%e3%83%9b%e3%82%b9%e3%83%86%e3%82%a3%e3%83%b3%e3%82%b0%e3%82%bb%e3%82%ad%e3%83%a5%e3%83%aa%e3%83%86%e3%82%a3-%e3%82%b5%e3%83%bc%e3%83%90%e3%83%bc%e3%83%96%e3%83%bc%e3%82%b9%e3%83%88","status":"publish","type":"post","link":"https:\/\/webhosting.de\/ja\/tls-cipher-suites-hosting-sicherheit-serverboost\/","title":{"rendered":"\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306b\u304a\u3051\u308bTLS\u6697\u53f7\u30b9\u30a4\u30fc\u30c8\uff1a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u6700\u9069\u5316"},"content":{"rendered":"<p>\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306b\u304a\u3044\u3066\u3001TLS\u6697\u53f7\u30b9\u30a4\u30fc\u30c8\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u3068\u30d6\u30e9\u30a6\u30b6\u304c\u3069\u306e\u3088\u3046\u306b\u30c7\u30fc\u30bf\u3092\u6697\u53f7\u5316\u3057\u3001\u8a8d\u8a3c\u3057\u3001\u30cd\u30b4\u30b7\u30a8\u30fc\u30c8\u3059\u308b\u304b\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002 <strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3<\/strong> \u3068\u30b9\u30d4\u30fc\u30c9\u306e\u4e21\u7acb\u304c\u53ef\u80fd\u3067\u3059\u3002\u6697\u53f7\u30b9\u30a4\u30fc\u30c8\u306e\u512a\u5148\u9806\u4f4d\u3092\u8ce2\u304f\u6c7a\u3081\u308b\u3053\u3068\u3067\u3001\u5f37\u529b\u306a\u6697\u53f7\u30b9\u30a4\u30fc\u30c8\u304c\u5b9f\u73fe\u3059\u308b\u3002 <strong>ssl\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30db\u30b9\u30c6\u30a3\u30f3\u30b0<\/strong> PFS\u3001\u6700\u65b0\u306eAEAD\u624b\u9806\u3001\u30af\u30ea\u30fc\u30f3\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u306a\u3069\u3001\u6697\u53f7\u5316\u6027\u80fd\u3092\u843d\u3068\u3059\u3053\u3068\u306a\u304f\u3002.<\/p>\n\n<h2>\u4e2d\u5fc3\u70b9<\/h2>\n<p>\u4ee5\u4e0b\u306e\u6982\u8981\u306f\u3001\u79c1\u304c\u5b89\u5168\u3067\u9ad8\u901f\u306a\u30b3\u30f3\u30d5\u30a3\u30ae\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u305f\u3081\u306b\u8003\u616e\u3059\u308b\u6700\u3082\u91cd\u8981\u306a\u70b9\u3092\u307e\u3068\u3081\u305f\u3082\u306e\u3067\u3042\u308b\u3002.<\/p>\n<ul>\n  <li><strong>\u30d4\u30fc\u30a8\u30d5\u30a8\u30b9<\/strong> \u3092\u512a\u5148\u3059\u308b\uff1aECDHE\u30b9\u30a4\u30fc\u30c8\u306f\u9375\u304c\u6f0f\u6d29\u3057\u305f\u5834\u5408\u3067\u3082\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u4fdd\u8b77\u3059\u308b\u3002.<\/li>\n  <li><strong>AES-GCM<\/strong> \u3068ChaCha20\uff1a\u96fb\u6c17\u5668\u5177\u3068\u8ca0\u8377\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u304c\u6c7a\u5b9a\u7684\u3002.<\/li>\n  <li><strong>TLS 1.3<\/strong> \u4f7f\u7528\u3059\u308b\uff1a\u653b\u6483\u5bfe\u8c61\u304c\u5c11\u306a\u304f\u3001\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u304c\u901f\u3044\u3002.<\/li>\n  <li><strong>\u30d6\u30e9\u30c3\u30af\u30ea\u30b9\u30c8<\/strong> \u30ec\u30ac\u30b7\u30fc\u30c7\u30fc\u30bf\u7528\uff1a\u4e00\u8cab\u3057\u305f\u30d6\u30ed\u30c3\u30afRC4\u30013DES\u3001MD5\u3002.<\/li>\n  <li><strong>\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9<\/strong> think: \u30dd\u30b9\u30c8\u91cf\u5b50KEX\u3068\u30af\u30e9\u30b7\u30c3\u30af\u306a\u30ab\u30fc\u30d6\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3002.<\/li>\n<\/ul>\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\/04\/serverraum-sicherheit-8402.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>TLS\u6697\u53f7\u30b9\u30a4\u30fc\u30c8\u3068\u306f\uff1f<\/h2>\n\n<p>\u6697\u53f7\u30b9\u30a4\u30fc\u30c8\u306f\u3001\u63a5\u7d9a\u3092\u4fdd\u8b77\u3059\u308b\u9375\u4ea4\u63db\u3001\u6697\u53f7\u5316\u3001\u5b8c\u5168\u6027\u4fdd\u8b77\u306e\u6b63\u78ba\u306a\u7d44\u307f\u5408\u308f\u305b\u3092\u8a18\u8ff0\u3057\u3001\u63a5\u7d9a\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u4fdd\u8a3c\u3059\u308b\u3002 <strong>\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3<\/strong> \u69cb\u9020\u5316\u3055\u308c\u3066\u3044\u308b\u3002\u4ee3\u8868\u7684\u306a\u69cb\u6210\u8981\u7d20\u306f\u3001ECDHE\uff08\u9375\u4ea4\u63db\uff09\u3001AES-GCM\u307e\u305f\u306fChaCha20-Poly1305\uff08\u6697\u53f7\u5316\uff09\u3001SHA-256\/384\uff08\u30cf\u30c3\u30b7\u30e5\uff09\u3060\u3002\u305d\u308c\u305e\u308c\u306e\u9078\u629e\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3001CPU\u8ca0\u8377\u3001\u30ec\u30a4\u30c6\u30f3\u30b7\u306b\u76f4\u63a5\u7684\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3002\u305d\u306e\u305f\u3081\u3001\u79c1\u306f\u4e00\u8cab\u3057\u3066RC4\u30013DES\u3001MD5\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u306a\u3069\u306e\u30ec\u30ac\u30b7\u30fc\u30b9\u30a4\u30fc\u30c8\u3092\u7121\u52b9\u306b\u3057\u3066\u3044\u308b\u3002\u7528\u8a9e\u306e\u5165\u9580\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u30b3\u30f3\u30d1\u30af\u30c8\u306a\u6982\u8981\u304c\u5f79\u306b\u7acb\u3064\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>, \u512a\u5148\u9806\u4f4d\u30ea\u30b9\u30c8\u3092\u4f5c\u6210\u3059\u308b\u524d\u306b\u6700\u65b0\u306eTLS\u30d0\u30fc\u30b8\u30e7\u30f3\u306f\u591a\u69d8\u6027\u3092\u6e1b\u3089\u3057\u3001\u5f31\u70b9\u3092\u6392\u9664\u3057\u3066\u3044\u308b\u3002 <strong>\u7ba1\u7406<\/strong> \u7c21\u7d20\u5316\u3055\u308c\u305f\u3002<\/p>\n\n<h2>TLS\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u306e\u7c21\u5358\u306a\u8aac\u660e<\/h2>\n\n<p>\u6700\u521d\u306b\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u30b9\u30a4\u30fc\u30c8\u3092\u63d0\u6848\u3057\u3001\u30b5\u30fc\u30d0\u306f\u6700\u3082\u5f37\u3044\u5171\u901a\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u9078\u629e\u3057\u3001\u8a3c\u660e\u66f8\u3068\u9375\u4ea4\u63db\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3067\u3053\u306e\u9078\u629e\u3092\u78ba\u8a8d\u3059\u308b\u3002 <strong>\u63a5\u7d9a<\/strong> \u304c\u751f\u6210\u3055\u308c\u308b\u3002ECDHE\u306f\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u3054\u3068\u306b\u65b0\u3057\u3044\u30a8\u30d5\u30a7\u30e1\u30e9\u30eb\u30fb\u30ad\u30fc\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u3001\u5b8c\u5168\u306a\u524d\u65b9\u79d8\u533f\u6027\u3092\u5b9f\u73fe\u3059\u308b\u3002TLS 1.3\u306f\u53e4\u3044\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u524a\u9664\u3057\u3001\u30e9\u30a6\u30f3\u30c9\u30c8\u30ea\u30c3\u30d7\u3092\u7bc0\u7d04\u3059\u308b\u3053\u3068\u3067\u3001time-to-first-byte\u3092\u4e0b\u3052\u3001\u30a8\u30e9\u30fc\u306e\u539f\u56e0\u3092\u6e1b\u3089\u3059\u3002\u79c1\u306f\u5f85\u3061\u6642\u9593\u89e3\u6790\u30c4\u30fc\u30eb\u3092\u4f7f\u3044\u3001\u53ef\u80fd\u306a\u9650\u308a\u6700\u521d\u306e\u30b3\u30e2\u30f3\u30fb\u30b9\u30a4\u30fc\u30c8\u304c\u6709\u52b9\u306b\u306a\u308b\u3088\u3046\u306b\u30b7\u30fc\u30b1\u30f3\u30b9\u3092\u6700\u9069\u5316\u3059\u308b\u3002\u8981\u6c42\u306e\u53b3\u3057\u3044\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f <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\/\">TLS\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u306e\u9ad8\u901f\u5316<\/a>, \u8ca0\u8377\u306e\u30d4\u30fc\u30af\u3092\u5186\u6ed1\u306b\u5438\u53ce\u3057\u3001\u305d\u306e\u30d4\u30fc\u30af\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u3002 <strong>\u6697\u53f7\u5316<\/strong> \u8ca0\u62c5\u3092\u8efd\u6e1b\u3059\u308b\u305f\u3081\u306b\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\/04\/tls_cipher_suites_meeting_5678.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u5b89\u5168\u306a\u9078\u629e\uff1aPFS\u3068\u30af\u30ea\u30fc\u30f3\u8a8d\u8a3c<\/h2>\n\n<p>\u5b8c\u5168\u306a\u524d\u65b9\u79d8\u533f\u306f\u3001\u6f0f\u6d29\u3057\u305f\u9577\u671f\u9375\u304c\u53e4\u3044\u30bb\u30c3\u30b7\u30e7\u30f3\u3092\u66b4\u9732\u3059\u308b\u30ea\u30b9\u30af\u3092\u4f4e\u6e1b\u3059\u308b\u3002 <strong>\u7279\u5fb4<\/strong> \u30ab\u30a6\u30f3\u30c8\u3055\u308c\u308b\u3002ECDSA\u8a3c\u660e\u66f8\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u30b5\u30dd\u30fc\u30c8\u304c\u5341\u5206\u306b\u5e83\u7bc4\u3067\u3042\u308b\u9650\u308a\u3001RSA\u3088\u308a\u3082\u512a\u308c\u305f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u304c\u591a\u3044\u3002\u30bf\u30fc\u30b2\u30c3\u30c8\u30fb\u30b0\u30eb\u30fc\u30d7\u304c\u6df7\u5728\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u79c1\u306fECDHE-ECDSA\u3068ECDHE-RSA\u3092\u7d44\u307f\u5408\u308f\u305b\u3001\u6700\u65b0\u306e\u30c7\u30d0\u30a4\u30b9\u304c\u3088\u308a\u9ad8\u901f\u306a\u65b9\u3092\u9078\u629e\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002SHA-256\u307e\u305f\u306f-384\u306e\u30cf\u30c3\u30b7\u30e5\u30e1\u30bd\u30c3\u30c9\u304c\u6a19\u6e96\u3067\u3042\u308a\u3001SHA-1\u3068MD5\u306f\u907f\u3051\u3066\u3044\u308b\u3002\u3053\u306e\u7d50\u679c\u3001\u653b\u6483\u7bc4\u56f2\u3092\u6700\u5c0f\u5316\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u653b\u6483\u3055\u308c\u308b\u53ef\u80fd\u6027\u3092\u6e1b\u3089\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u3002 <strong>\u30e6\u30fc\u30b6\u30fc<\/strong> \u30d6\u30ec\u30fc\u30ad\u3092\u304b\u3051\u308b.<\/p>\n\n<h2>\u6697\u53f7\u66f2\u7dda\u3001\u7f72\u540d\u3001\u8a3c\u660e\u66f8\u3092\u6b63\u3057\u304f\u9078\u629e\u3059\u308b<\/h2>\n\n<p>ECDHE\u3068ECDSA\u306e\u66f2\u7dda\u306e\u9078\u629e\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u4e21\u65b9\u306b\u5f71\u97ff\u3059\u308b\u3002\u5b9f\u969b\u306b\u306f\u3001\u9375\u4ea4\u63db\u306b\u306fX25519\u3092\u512a\u5148\u3057\u3001\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u3068\u3057\u3066secp256r1\uff08P-256\uff09\u3092\u4f7f\u3063\u3066\u3044\u308b\u3002\u306a\u305c\u306a\u3089\u3001\u3069\u3061\u3089\u3082\u5e83\u304f\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u304a\u308a\u3001X25519\u3092\u4f7f\u3048\u3070\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u304c\u901f\u304f\u306a\u308b\u3053\u3068\u304c\u591a\u3044\u304b\u3089\u3060\u3002\u7f72\u540d\u306b\u306f\u3001P-256\u307e\u305f\u306fP-384\u306eECDSA\u3092\u4f7f\u7528\u3059\u308b\u3002\u5e45\u5e83\u3044\u4e92\u63db\u6027\u304c\u91cd\u8981\u306a\u5834\u5408\u306f\u3001\u30bb\u30ab\u30f3\u30c9\u30fb\u30aa\u30d7\u30b7\u30e7\u30f3\u3068\u3057\u3066RSA\u8a3c\u660e\u66f8\uff082048\u30d3\u30c3\u30c8\u307e\u305f\u306f3072\u30d3\u30c3\u30c8\uff09\u3092\u7528\u610f\u3057\u3066\u304a\u304f\u3002\u540c\u3058\u30c9\u30e1\u30a4\u30f3\u4e0a\u306e\u30c7\u30e5\u30a2\u30eb\u8a3c\u660e\u66f8\uff08ECDSA\uff0bRSA\uff09\u306b\u3088\u308a\u3001\u6700\u65b0\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u3088\u308a\u9ad8\u901f\u306a\u30eb\u30fc\u30c8\u3092\u9078\u629e\u3067\u304d\u3001\u53e4\u3044\u30c7\u30d0\u30a4\u30b9\u306f\u5931\u6557\u3057\u306a\u3044\u3002.<\/p>\n<p>\u8a3c\u660e\u66f8\u30c1\u30a7\u30fc\u30f3\u3067\u306f\u3001\u30e9\u30a6\u30f3\u30c9\u30fb\u30c8\u30ea\u30c3\u30d7\u3068\u30d0\u30a4\u30c8\u91cf\u3092\u6e1b\u3089\u3059\u305f\u3081\u306b\u3001\u77ed\u304f\u304d\u308c\u3044\u306b\u30bd\u30fc\u30c8\u3055\u308c\u305f\u30c1\u30a7\u30fc\u30f3\u3068\u4e2d\u9593\u4f53\u306e\u8fc5\u901f\u306a\u914d\u4fe1\u306b\u6ce8\u610f\u3092\u6255\u3063\u3066\u3044\u308b\u3002\u4f59\u8a08\u306a\u5c5e\u6027\u306e\u306a\u3044\u8a3c\u660e\u66f8\u3001\u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9\u306e\u4ee3\u308f\u308a\u306b\u660e\u78ba\u306aSAN\u30a8\u30f3\u30c8\u30ea\u3001\u30de\u30eb\u30c1\u30c6\u30ca\u30f3\u30c8\u30fb\u30db\u30b9\u30c8\u306eSNI\u30ab\u30d0\u30ec\u30c3\u30b8\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3002\u30b5\u30fc\u30d0\u30fc\u306ehello\u5fdc\u7b54\u306b\u304a\u3051\u308b\u7f72\u540d\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306f\u3001\u6700\u65b0\u306e\u3082\u306e\uff08ecdsa_secp256r1_sha256\u3001rsa_psss_rsae_sha256\uff09\u3092\u63a8\u5968\u3057\u3001sha1\u30d9\u30fc\u30b9\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u306f\u9664\u5916\u3059\u308b\u3002.<\/p>\n\n<h2>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\uff1aAES-GCM\u5bfeChaCha20-Poly1305<\/h2>\n\n<p>AES-NI\u3092\u642d\u8f09\u3057\u305fx86\u30b5\u30fc\u30d0\u30fc\u3067\u306f\u3001AES-GCM\u304c\u3057\u3070\u3057\u3070\u975e\u5e38\u306b\u512a\u308c\u305f\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u3067\u611f\u52d5\u3092\u4e0e\u3048\u308b\u4e00\u65b9\u3001ChaCha20-Poly1305\u306f\u30e2\u30d0\u30a4\u30eb\u3084ARM\u30c7\u30d0\u30a4\u30b9\u3067\u8f1d\u304d\u3092\u653e\u3061\u3001\u305d\u306e\u7d50\u679c\u3001\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002 <strong>\u52b9\u7387\u6027<\/strong> \u304c\u5897\u52a0\u3057\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u79c1\u306fTLS_AES_256_GCM_SHA384\u3068TLS_CHACHA20_POLY1305_SHA256\u3092\u512a\u5148\u3057\u3001\u3055\u307e\u3056\u307e\u306a\u30c7\u30d0\u30a4\u30b9\u306b\u6700\u9069\u306a\u30b5\u30fc\u30d3\u30b9\u3092\u63d0\u4f9b\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002\u9375\u4ea4\u63db\u306b\u306fRSA\u3092\u4f7f\u308f\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002ECDHE\u306f\u65e5\u5e38\u7684\u306a\u4f7f\u7528\u3067\u306f\u3088\u308a\u901f\u304f\u3001\u3088\u308a\u5b89\u5168\u306b\u6a5f\u80fd\u3059\u308b\u304b\u3089\u3060\u3002\u307e\u305f\u3001\u30ea\u30b6\u30f3\u30d7\u30b7\u30e7\u30f3\u3092\u4f7f\u3063\u3066\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u3092\u7bc0\u7d04\u3059\u308b\u3053\u3068\u3067\u3001CPU\u306e\u8ca0\u8377\u3082\u6e1b\u3089\u3057\u3066\u3044\u308b\u3002\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc\u3092\u3055\u3089\u306b\u4e0a\u3052\u308b\u4eba\u306f <a href=\"https:\/\/webhosting.de\/ja\/%e3%83%9b%e3%82%b9%e3%83%86%e3%82%a3%e3%83%b3%e3%82%b0%e3%83%bb%e3%83%91%e3%83%95%e3%82%a9%e3%83%bc%e3%83%9e%e3%83%b3%e3%82%b9%e3%83%bb%e3%82%ad%e3%83%a3%e3%83%83%e3%82%b7%e3%83%a5%e3%83%96%e3%83%bc\/\">\u30bb\u30c3\u30b7\u30e7\u30f3\u518d\u958b<\/a> \u305d\u3057\u3066\u3001\u30c1\u30b1\u30c3\u30c8\u3068\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30af\u30ea\u30fc\u30f3\u306b\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3002 <strong>\u5fdc\u7b54\u6642\u9593<\/strong> \u5927\u5e45\u306b\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\/04\/tls-cipher-suites-hosting-9723.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30b7\u30fc\u30b1\u30f3\u30b9\u3068TLS 1.3\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u3092\u8ce2\u304f\u4f7f\u3046<\/h2>\n\n<p>TLS 1.3\u3067\u306f\u3001\u9078\u629e\u7bc4\u56f2\u3092\u610f\u56f3\u7684\u306b\u6e1b\u3089\u3057\u3001\u512a\u5148\u9806\u4f4d\u3092\u3064\u3051\u3084\u3059\u304f\u3057\u3066\u3044\u308b\u3002 <strong>\u30a2\u30bf\u30c3\u30af\u30fb\u30b5\u30fc\u30d5\u30a7\u30b9<\/strong> \u304c\u7e2e\u5c0f\u3059\u308b\u3002\u5f37\u529b\u306a\u9806\u756a\u306fAES-GCM\u3092\u30c8\u30c3\u30d7\u306b\u7f6e\u304d\u3001AES-NI\u3092\u6301\u305f\u306a\u3044\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u540c\u7b49\u306e\u4ee3\u66ff\u624b\u6bb5\u3068\u3057\u3066ChaCha20\u3092\u63d0\u4f9b\u3059\u308b\u3002TLS 1.2\u3067\u306f\u30ea\u30b9\u30c8\u306f\u9577\u304f\u306a\u308b\u304c\u3001GCM\u306e\u4e9c\u7a2e\u3092CBC\u306e\u4e0a\u306b\u53b3\u5bc6\u306b\u7f6e\u304d\u3001\u6642\u4ee3\u9045\u308c\u306e\u6697\u53f7\u306f\u5b8c\u5168\u306b\u6392\u9664\u3059\u308b\u3002\u30b5\u30fc\u30d0\u30fc\u304c\u72ec\u81ea\u306e\u9806\u5e8f\u3092\u5f37\u5236\u3057\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u512a\u5148\u9806\u4f4d\u3092\u5f15\u304d\u7d99\u304c\u306a\u3044\u3053\u3068\u304c\u91cd\u8981\u3067\u3042\u308b\u3053\u3068\u306b\u5909\u308f\u308a\u306f\u306a\u3044\u3002\u30a2\u30af\u30bb\u30b9\u3057\u3084\u3059\u3044\u6982\u8981\u306f\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306e\u52a9\u3051\u306b\u306a\u308b\u3002 <strong>\u30bb\u30ec\u30af\u30b7\u30e7\u30f3<\/strong> \u7c21\u7d20\u5316\u3055\u308c\u305f\u3002<\/p>\n\n<table>\n  <thead>\n    <tr>\n      <th>\u30b7\u30fc\u30b1\u30f3\u30b9<\/th>\n      <th>TLS 1.3 \u30b9\u30a4\u30fc\u30c8<\/th>\n      <th>\u76ee\u7684<\/th>\n      <th>\u5099\u8003<\/th>\n    <\/tr>\n  <\/thead>\n  <tbody>\n    <tr>\n      <td>1<\/td>\n      <td>TLS_AES_256_GCM_SHA384<\/td>\n      <td>\u6700\u5927\u9650\u306e\u6a5f\u5bc6\u6027<\/td>\n      <td>AES-NI\u3067x86\u306b\u5f37\u3044<\/td>\n    <\/tr>\n    <tr>\n      <td>2<\/td>\n      <td>TLS_CHACHA20_POLY1305_SHA256<\/td>\n      <td>\u30e2\u30d0\u30a4\u30eb\u52b9\u7387<\/td>\n      <td>ARM\/AES-NI\u306a\u3057\u3067\u975e\u5e38\u306b\u512a\u308c\u3066\u3044\u308b<\/td>\n    <\/tr>\n    <tr>\n      <td>3<\/td>\n      <td>TLS_AES_128_GCM_SHA256<\/td>\n      <td>\u56fa\u4f53\u57f9\u5730<\/td>\n      <td>\u9ad8\u901f\u3067\u5e45\u5e83\u3044\u30b5\u30dd\u30fc\u30c8<\/td>\n    <\/tr>\n  <\/tbody>\n<\/table>\n\n<h2>TLS 1.3\u306e\u5fae\u8abf\u6574\uff1a0-RTT\u3001PSK\u3001KeyUpdate\u306e\u5b89\u5168\u306a\u4f7f\u7528<\/h2>\n\n<p>TLS 1.3\u306fPSK\u30ea\u30d7\u30ec\u30a4\u3068\u30aa\u30d7\u30b7\u30e7\u30f3\u306e0-RTT\u3092\u5c0e\u5165\u3057\u3066\u3044\u308b\u3002\u79c1\u306f\u3001\u30ea\u30d7\u30ec\u30a4\u306e\u30ea\u30b9\u30af\u3092\u6392\u9664\u3059\u308b\u305f\u3081\u306b\u3001\u53b3\u5bc6\u306b\u306f\u51aa\u7b49\u306a\u8aad\u307f\u53d6\u308a\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u306b\u5bfe\u3057\u3066\u306e\u307f\u9078\u629e\u7684\u306b0-RTT\u3092\u6709\u52b9\u306b\u3057\u3001\u66f8\u304d\u8fbc\u307f\u30d1\u30b9\u306b\u5bfe\u3057\u3066\u306f\u30d6\u30ed\u30c3\u30af\u3057\u3066\u3044\u308b\u3002\u30c1\u30b1\u30c3\u30c8\u306e\u30e9\u30f3\u30bf\u30a4\u30e0\u3092\u77ed\u304f\u4fdd\u3061\u3001\u30c1\u30b1\u30c3\u30c8\u30fb\u30ad\u30fc\u3092\u5b9a\u671f\u7684\u306b\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u3057\u3066\u3001\u671f\u9650\u5207\u308c\u306e\u30c1\u30b1\u30c3\u30c8\u304c\u9577\u671f\u9593\u4f7f\u7528\u3067\u304d\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002PSK\u30d0\u30a4\u30f3\u30c0\u306f\u30c0\u30a6\u30f3\u30b0\u30ec\u30fc\u30c9\u304b\u3089\u4fdd\u8b77\u3059\u308b\u304c\u3001\u521d\u671f\u5316\u3068\u518d\u958b\u306e\u9593\u306b\u30b5\u30fc\u30d0\u5074\u3067ALPN\u3068\u6697\u53f7\u30b3\u30d2\u30fc\u30ec\u30f3\u30b9\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3002.<\/p>\n<p>\u79c1\u306fKeyUpdate\u3092\u4f7f\u7528\u3057\u3066\u3001\u5b9f\u884c\u4e2d\u306e\u30b9\u30c8\u30ea\u30fc\u30e0\u3067\u9577\u671f\u9593\u306e\u30ad\u30fc\u3092\u65b0\u9bae\u306b\u4fdd\u3064\u3002\u79c1\u306f\u307e\u305f\u3001\u30c0\u30a6\u30f3\u30b0\u30ec\u30fc\u30c9\u4fdd\u8b77\u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u4e00\u8cab\u3057\u3066\u5b9f\u88c5\u3057\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306eGREASE\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u76e3\u8996\u3057\u3066\u3001\u6b20\u9665\u306e\u3042\u308b\u30df\u30c9\u30eb\u30dc\u30c3\u30af\u30b9\u306b\u5bfe\u3059\u308b\u5805\u7262\u6027\u306b\u76ee\u3092\u5149\u3089\u305b\u3066\u3044\u308b\u3002.<\/p>\n\n<h2>\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u8a2d\u5b9a\u306e\u5b9f\u969b<\/h2>\n\n<p>Nginx\u3068Apache\u3067\u306f\u3001\u512a\u5148\u9806\u4f4d\u3092\u660e\u793a\u7684\u306b\u8a2d\u5b9a\u3057\u3001\u672c\u5f53\u306b\u5fc5\u8981\u306a\u30b9\u30a4\u30fc\u30c8\u3060\u3051\u3092\u8a31\u53ef\u3057\u3066\u3044\u308b\u3002 <strong>\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb<\/strong> \u5897\u52a0\u3057\u305f\u3002TLS 1.0\u30681.1\u306f\u3001\u65e2\u77e5\u306e\u5f31\u70b9\u3068\u30d5\u30a9\u30fc\u30eb\u30c8\u30c8\u30ec\u30e9\u30f3\u30b9\u304c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u4f4e\u4e0b\u3055\u305b\u308b\u306e\u3067\u3001\u7121\u52b9\u306b\u3057\u3066\u3044\u308b\u3002TLS 1.2\u306b\u3064\u3044\u3066\u306f\u3001ECDHE\u30d9\u30fc\u30b9\u306eGCM\u30b9\u30a4\u30fc\u30c8\u306e\u307f\u3092\u6709\u52b9\u306b\u3057\u3001\u3059\u3079\u3066\u306eCBC\u30d0\u30ea\u30a2\u30f3\u30c8\u3092\u9632\u3044\u3067\u3044\u308b\u3002\u8a3c\u660e\u66f8\u306fECDSA\u3067\u7d71\u5408\u3059\u308b\u3053\u3068\u3092\u597d\u3080\u304c\u3001\u53e4\u3044\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u5931\u6557\u3057\u306a\u3044\u3088\u3046\u306bRSA\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u7528\u610f\u3057\u3066\u304a\u304f\u3002\u305d\u3057\u3066\u3001\u3059\u3079\u3066\u306e\u5909\u66f4\u3092\u81ea\u52d5\u5316\u3067\u30c6\u30b9\u30c8\u3057\u3001\u30cf\u30f3\u30c9\u30b7\u30a7\u30fc\u30af\u30fb\u30e1\u30c8\u30ea\u30af\u30b9\u3092\u76e3\u8996\u3057\u3066 <strong>\u7a7a\u5ba4\u72b6\u6cc1<\/strong> \u9ad8\u3044\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\/04\/TLS_Cipher_Sicherheit_1234.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30b3\u30f3\u30d1\u30af\u30c8\u306a\u8a2d\u5b9a\u4f8b<\/h2>\n\n<p>Nginx\u3067\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u512a\u5148\u9806\u4f4d\u3092\u5f37\u5236\u3057\u3001TLS 1.2\u30681.3\u3092\u5206\u96e2\u3057\u3001\u30ab\u30fc\u30d6\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u308b\u3002\u5177\u4f53\u7684\u306a\u8868\u8a18\u6cd5\u306f\u4f7f\u7528\u3059\u308b\u6697\u53f7\u30e9\u30a4\u30d6\u30e9\u30ea\u306b\u4f9d\u5b58\u3059\u308b\u3002TLS 1.2\u6697\u53f7\u6587\u5b57\u5217\u3068TLS 1.3\u6697\u53f7\u30b9\u30a4\u30fc\u30c8\u306e\u5206\u96e2\u306f\u91cd\u8981\u3060\u3002.<\/p>\n<pre><code># Nginx (\u629c\u7c8b)\nssl_protocols TLSv1.2 TLSv1.3\uff1b\nssl_prefer_server_ciphers on\uff1b\n\n# TLS 1.2\u6697\u53f7\u6587\u5b57\u5217\uff08ECDHE + GCM\u306e\u307f\u3001CBC\/legacy\u306a\u3057\uff09\nssl_ciphers 'ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:\n             ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:!\n             aNULL:!eNULL:!MD5:!RC4:!DES:!3DES:!CBC'\uff1b\n\n# TLS 1.3\u6697\u53f7\u30b9\u30a4\u30fc\u30c8(ssl_ciphersuites\/ssl_conf_command\u3067\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u4f9d\u5b58)\n# TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_128_GCM_SHA256;\n\n#\u30ab\u30fc\u30d6\u306e\u512a\u5148\u9806\u4f4d\nssl_ecdh_curve X25519:secp256r1;\n\n# OCSP\u306e\u30b9\u30c6\u30fc\u30d7\u30ea\u30f3\u30b0\u3068\u30b9\u30c6\u30fc\u30d7\u30eb\u30fb\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u9069\u5207\u306b\u7dad\u6301\u3059\u308b\nssl_stapling on\uff1b\nssl_stapling_verify on\uff1b;\n<\/code><\/pre>\n\n<p>\u540c\u3058\u539f\u5247\u304c\u30a2\u30d1\u30c3\u30c1\u306b\u3082\u9069\u7528\u3055\u308c\u308b\uff1a\u6700\u65b0\u306e\u30b9\u30a4\u30fc\u30c8\u3060\u3051\u3067\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u9806\u5e8f\u3092\u5f37\u5236\u3057\u3001\u30ab\u30fc\u30d6\u3092\u4fee\u6b63\u3059\u308b\u3002.<\/p>\n<pre><code># Apache (\u629c\u7c8b)\nSSLProtocol -TLSv1 -TLSv1.1 +TLSv1.2 +TLSv1.3\nSSLHonorCipherOrder\u30aa\u30f3\nSSLCipherSuite ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384\uff1a\n                 ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:!\n                 MD5:!RC4:!DES:!3DES:!CBC\nSSLOpenSSLConfCmd\u30ab\u30fc\u30d6 X25519:secp256r1\nSSLOpenSSLConfCmd \u6697\u53f7\u30b9\u30a4\u30fc\u30c8\u306b\u3088\u308b # TLS 1.3 ...\n<\/code><\/pre>\n\n<p>\u79c1\u306f\u3001HAProxy\u307e\u305f\u306f\u7d42\u7aef\u30d7\u30ed\u30ad\u30b7\u3092\u540c\u3058\u3088\u3046\u306b\u8a2d\u5b9a\u3057\u3001mTLS\u304c\u5185\u90e8\u30b5\u30fc\u30d3\u30b9\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3001\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u306eTLS\u304c\u5236\u9650\u3055\u308c\u305f\u307e\u307e\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002.<\/p>\n\n<h2>\u30dd\u30b9\u30c8\u91cf\u5b50\u6226\u7565\uff1a\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9KEX\u306e\u6e96\u5099<\/h2>\n\n<p>\u3060\u304b\u3089\u3053\u305d\u79c1\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u79fb\u884c\u6226\u7565\u3092\u8a08\u753b\u3057\u3066\u3044\u308b\u306e\u3060\u3002 <strong>\u30ea\u30b9\u30af<\/strong> \u9650\u5b9a\u7684\u3067\u3042\u308b\u3002\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u30fb\u30a2\u30d7\u30ed\u30fc\u30c1\u306f\u3001X25519\u306e\u3088\u3046\u306a\u78ba\u7acb\u3055\u308c\u305f\u30ab\u30fc\u30d6\u3068\u30dd\u30b9\u30c8\u91cf\u5b50KEM\u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u3082\u306e\u3067\u3059\u3002\u79c1\u306f\u30c6\u30b9\u30c8\u74b0\u5883\u3067\u30d1\u30a4\u30ed\u30c3\u30c8\u3092\u958b\u59cb\u3057\u3001\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc\u3092\u6e2c\u5b9a\u3057\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u8ca0\u8377\u3092\u8a55\u4fa1\u3057\u307e\u3059\u3002\u5b9f\u88c5\u306e\u6210\u719f\u5ea6\u3001\u8a3c\u660e\u66f8\u30c1\u30a7\u30fc\u30f3\u3001\u4e00\u822c\u7684\u306a\u30e9\u30a4\u30d6\u30e9\u30ea\u3068\u306e\u4e92\u63db\u6027\u306b\u3082\u6ce8\u610f\u3092\u6255\u3063\u3066\u3044\u307e\u3059\u3002\u30b9\u30c6\u30c3\u30d7\u30fb\u30d0\u30a4\u30fb\u30b9\u30c6\u30c3\u30d7\u3067\u30ed\u30fc\u30eb\u30a2\u30a6\u30c8\u3059\u308c\u3070 <strong>\u5b89\u5b9a\u6027<\/strong> \u3092\u5b9f\u7a3c\u50cd\u3055\u305b\u3001\u4fe1\u983c\u3067\u304d\u308b\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u3092\u53ce\u96c6\u3059\u308b\u3002.<\/p>\n\n<h2>HTTP\/2\u3001HTTP\/3\u3068ALPN\uff1a\u30b9\u30a4\u30fc\u30c8\u306e\u5f71\u97ff<\/h2>\n\n<p>HTTP\/2 \u3068 HTTP\/3 \u306f\u6697\u53f7\u306e\u9078\u629e\u304b\u3089\u76f4\u63a5\u6069\u6075\u3092\u53d7\u3051\u307e\u3059\u3002ALPN\u30cd\u30b4\u30b7\u30a8\u30fc\u30b7\u30e7\u30f3(h2, http\/1.1, h3)\u306f\u3001\u518d\u8a66\u884c\u304c\u4ed6\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u6c17\u3065\u304b\u308c\u306a\u3044\u3088\u3046\u306b\u3001\u8a31\u53ef\u3055\u308c\u305f\u30b9\u30a4\u30fc\u30c8\u3068\u4e00\u8cab\u3057\u3066\u3044\u308b\u3079\u304d\u3067\u3059\u3002HTTP\/2\u306fAEAD\u6697\u53f7\u3092\u8981\u6c42\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u79c1\u305f\u3061\u306e\u512a\u5148\u9806\u4f4d\u4ed8\u3051\u306b\u3088\u3063\u3066\u6e80\u305f\u3055\u308c\u307e\u3059\u3002QUIC\u7d4c\u7531\u306eHTTP\/3\u3067\u306f\u3001TLS 1.3\u306e\u307f\u304c\u9069\u7528\u3055\u308c\u3001\u30ab\u30aa\u30b9\u306a\u30ec\u30ac\u30b7\u30fc\u8a2d\u5b9a\u306f\u81ea\u52d5\u7684\u306b\u9664\u5916\u3055\u308c\u307e\u3059\u3002\u79c1\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u512a\u5148\u7684\u306bh2\/h3\u3092\u53d7\u4fe1\u3057\u3001http\/1.1\u306b\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u3057\u306a\u3044\u3088\u3046\u306b\u3001ALPN\u30b7\u30fc\u30b1\u30f3\u30b9\u304c\u5b89\u5b9a\u3057\u305f\u307e\u307e\u3067\u3042\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3059\u308b\u3002.<\/p>\n\n<h2>\u8a3c\u660e\u66f8\u30c1\u30a7\u30fc\u30f3\u3001OCSP\u30b9\u30c6\u30fc\u30d7\u30ea\u30f3\u30b0\u3001HSTS<\/h2>\n\n<p>PKI\u306e\u885b\u751f\u72b6\u614b\u304c\u60aa\u5316\u3059\u308c\u3070\u3001\u30b9\u30c8\u30ed\u30f3\u30b0\u30fb\u30b9\u30a4\u30fc\u30c8\u3060\u3051\u3067\u306f\u5341\u5206\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u79c1\u306f\u3001\u30c1\u30a7\u30fc\u30f3\u3092\u77ed\u304f\u4fdd\u3061\u3001\u4e00\u8cab\u3057\u3066\u540c\u3058\u4ef2\u4ecb\u6a5f\u95a2\u3092\u914d\u5099\u3057\u3001\u5341\u5206\u306a\u5927\u304d\u3055\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3067OCSP\u30b9\u30c6\u30fc\u30d7\u30eb\u3092\u6709\u52b9\u306b\u3059\u308b\u3053\u3068\u3067\u3001\u30ec\u30b9\u30dd\u30f3\u30b9\u304c\u65b0\u9bae\u306b\u4fdd\u305f\u308c\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u30d5\u30a7\u30c3\u30c1\u304c\u4e0d\u8981\u306b\u306a\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3068\u5197\u9577\u6027\u304c\u6574\u3048\u3070\u3001\u201e\u30de\u30b9\u30c8\u30fb\u30b9\u30c6\u30fc\u30d7\u30eb \u201c\u306f\u614e\u91cd\u306b\u4f7f\u7528\u3059\u308b\u3002HSTS\u306e\u3088\u3046\u306a\u53b3\u683c\u306a\u30c8\u30e9\u30f3\u30b9\u30dd\u30fc\u30c8\u30fb\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306f\u3001TLS\u8a2d\u5b9a\u3092\u88dc\u8db3\u3057\u3001\u30c0\u30a6\u30f3\u30b0\u30ec\u30fc\u30c9\u30fb\u30a6\u30a3\u30f3\u30c9\u30a6\u3092\u6e1b\u3089\u3057\u3001\u5076\u767a\u7684\u306a\u30d7\u30ec\u30fc\u30f3\u30fb\u30c6\u30ad\u30b9\u30c8\u30fb\u30a2\u30af\u30bb\u30b9\u3092\u9632\u3050\u3002.<\/p>\n\n<h2>\u30c6\u30b9\u30c8\u3001\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3001\u30e1\u30c8\u30ea\u30af\u30b9<\/h2>\n\n<p>\u5fb9\u5e95\u7684\u306a\u30c6\u30b9\u30c8\u306b\u3088\u3063\u3066\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u3069\u3053\u3067\u843d\u3061\u8fbc\u3093\u3067\u3044\u308b\u306e\u304b\u3001\u3042\u308b\u3044\u306f\u30b3\u30f3\u30d5\u30a3\u30ae\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u304c\u3069\u3053\u3067\u9045\u304f\u306a\u3063\u3066\u3044\u308b\u306e\u304b\u304c\u65e9\u3044\u6bb5\u968e\u3067\u308f\u304b\u308b\u3002 <strong>\u7d4c\u9a13<\/strong> \u82e6\u3057\u3080\u3002\u683c\u4ed8\u3051\u306f\u8fc5\u901f\u306a\u5206\u985e\u3092\u63d0\u4f9b\u3057\u3066\u304f\u308c\u308b\u304c\u3001\u79c1\u306f\u8ca0\u8377\u304c\u304b\u304b\u3063\u305f\u72b6\u614b\u3067\u306e\u518d\u73fe\u6027\u306e\u3042\u308b\u6e2c\u5b9a\u306b\u983c\u3063\u3066\u3044\u308b\u3002\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u6642\u9593\u3001\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u3042\u305f\u308a\u306eCPU\u30b5\u30a4\u30af\u30eb\u3001\u518d\u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u7387\u306a\u3069\u306e\u6e2c\u5b9a\u30dd\u30a4\u30f3\u30c8\u306f\u3001\u9032\u6357\u3092\u53ef\u8996\u5316\u3059\u308b\u3002CI\u30b8\u30e7\u30d6\u306f\u30ed\u30fc\u30eb\u30a2\u30a6\u30c8\u306e\u305f\u3073\u306b\u6697\u53f7\u30ea\u30b9\u30c8\u3092\u691c\u8a3c\u3057\u3001\u8aa4\u3063\u3066\u5f31\u3044\u30b9\u30a4\u30fc\u30c8\u304c\u623b\u3063\u3066\u3053\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002\u3055\u3089\u306b\u3001\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\u52b9\u679c\u3092\u6b63\u3057\u304f\u8a55\u4fa1\u3059\u308b\u305f\u3081\u306b\u3001\u30ea\u30b6\u30f3\u30d7\u30b7\u30e7\u30f3\u3068\u30c1\u30b1\u30c3\u30c8\u306e\u30e9\u30f3\u30bf\u30a4\u30e0\u3092\u76e3\u8996\u3057\u3001\u6b21\u306e\u3088\u3046\u306a\u6700\u9069\u5316\u3092\u884c\u3063\u3066\u3044\u308b\u3002 <strong>\u5b9a\u54e1<\/strong> \u4e88\u6e2c\u53ef\u80fd\u3060\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\/04\/tls_ciphersuites_bild_2378.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30af\u30e9\u30b9\u30bf\u3067\u306e\u904b\u7528\uff1a\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u518d\u958b\u3001\u30c1\u30b1\u30c3\u30c8\u3001\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3<\/h2>\n\n<p>\u5206\u6563\u74b0\u5883\u3067\u306f\u3001\u3059\u3079\u3066\u306e\u30ce\u30fc\u30c9\u304c\u30c1\u30b1\u30c3\u30c8\u3068PSK\u306b\u3064\u3044\u3066\u540c\u3058\u30d3\u30e5\u30fc\u3092\u6301\u3063\u3066\u3044\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u79c1\u306f\u30c1\u30b1\u30c3\u30c8\u30fb\u30ad\u30fc\u306e\u96c6\u4e2d\u5316\u307e\u305f\u306f\u540c\u671f\u5316\u3092\u884c\u3044\u3001\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u30fb\u30b5\u30a4\u30af\u30eb\u3092\u77ed\u304f\uff08\u305f\u3068\u3048\u307012\uff5e24\u6642\u9593\uff09\u3057\u3066\u3001\u4e0d\u6b63\u4f7f\u7528\u30a6\u30a3\u30f3\u30c9\u30a6\u3092\u5c0f\u3055\u304f\u4fdd\u3064\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002\u30b9\u30c6\u30fc\u30c8\u30ec\u30b9\u30fb\u30c1\u30b1\u30c3\u30c8\u306f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u9ad8\u3044\u304c\u3001\u898f\u5f8b\u3042\u308b\u30ad\u30fc\u30fb\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u304c\u5fc5\u8981\u3067\u3042\u308b\u3002\u5171\u6709\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u6301\u3064\u30bb\u30c3\u30b7\u30e7\u30f3ID\u306f\u4ee3\u66ff\u624b\u6bb5\u3067\u3059\u304c\u3001\u4fe1\u983c\u3067\u304d\u308b\u30ec\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u5fc5\u8981\u3067\u3059\u3002.<\/p>\n<p>\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3054\u3068\u306e\u4e26\u5217\u518d\u958b\u306e\u6570\u3092\u5236\u9650\u3057\u3001\u518d\u958b\u306e\u30af\u30a9\u30fc\u30bf\u3068\u76f8\u95a2ID\u3092\u8a18\u9332\u3057\u3001\u30af\u30ed\u30c3\u30af\u30b9\u30ad\u30e5\u30fc\u306e\u4e0d\u5177\u5408\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u30ef\u30a4\u30d7\u306e\u30a4\u30d9\u30f3\u30c8\u3001\u672a\u719f\u306a\u30df\u30c9\u30eb\u30dc\u30c3\u30af\u30b9\u3092\u793a\u3059\u7570\u5e38\u5024\u3092\u76e3\u8996\u3057\u3066\u3044\u307e\u3059\u3002\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u306e\u305f\u3081\u306b\u3001\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u30fb\u30dd\u30ea\u30b7\u30fc\u3092\u6587\u66f8\u5316\u3057\u3001\u76e3\u67fb\u306e\u305f\u3081\u306e\u8a3c\u62e0\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n<h2>\u4e92\u63db\u6027\u3068\u30ec\u30ac\u30b7\u30fc\u6226\u7565<\/h2>\n\n<p>\u3059\u3079\u3066\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u30e2\u30c0\u30f3\u306a\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u306e\u305f\u3081\u3001\u79c1\u306f\u300c\u4e00\u822c\u306e\u30a6\u30a7\u30d6\u300d\u3068\u300c\u7279\u6b8a\u306a\u30ec\u30ac\u30b7\u30fc\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u300d\u3092\u660e\u78ba\u306b\u533a\u5225\u3057\u3066\u3044\u308b\u3002\u30a6\u30a7\u30d6\u3067\u306fTLS 1.0\/1.1\u3092\u59a5\u5354\u306a\u304f\u7121\u52b9\u306b\u3059\u308b\u3002\u53e4\u3044\u30c7\u30d0\u30a4\u30b9\u3092\u4f9b\u7d66\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u4e00\u822c\u7684\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30e9\u30a4\u30f3\u3092\u8584\u3081\u308b\u4ee3\u308f\u308a\u306b\u3001\u5c02\u7528\u306e\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u304b\u3001\u53b3\u5bc6\u306a\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u3092\u884c\u3046\u500b\u5225\u306eVIP\u3092\u7d4c\u7531\u3057\u3066\u30ab\u30d7\u30bb\u30eb\u5316\u3059\u308b\u3002\u5fc5\u8981\u3067\u3042\u308c\u3070\u3001ECDSA\u8a3c\u660e\u66f8\u3092\u6301\u3064\u6700\u65b0\u306e\u30db\u30b9\u30c8\u3092\u30d6\u30ed\u30c3\u30af\u3057\u306a\u3044\u3088\u3046\u306b\u3001SNI\u3092\u6301\u305f\u306a\u3044\u30ec\u30ac\u30b7\u30fc\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3092\u5225\u306eIP\/\u30db\u30b9\u30c8\u540d\u6226\u7565\u3067\u63a5\u7d9a\u3059\u308b\u3002.<\/p>\n<p>\u79c1\u306f\u307e\u305f\u660e\u793a\u7684\u306a\u30ab\u30fc\u30d6\u30ea\u30b9\u30c8\uff08X25519,P-256\uff09\u3092\u7dad\u6301\u3057\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u30cf\u30ed\u30fc\u80fd\u529b\u3092\u76e3\u8996\u3057\u3066\u3044\u308b\u3002JA3\u306e\u3088\u3046\u306a\u30d5\u30a3\u30f3\u30ac\u30fc\u30d7\u30ea\u30f3\u30c8\u306f\u3001\u6697\u53f7\u30dd\u30ea\u30b7\u30fc\u3092\u8edf\u5316\u3055\u305b\u308b\u3053\u3068\u306a\u304f\u3001\u7279\u5b9a\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30b0\u30eb\u30fc\u30d7\u306e\u305f\u3081\u306b\u30af\u30e9\u30b9\u30bf\u30d1\u30b9\u3092\u512a\u5148\u3055\u305b\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002FIPS\u8981\u4ef6\u304c\u9069\u7528\u3055\u308c\u308b\u5834\u5408\u306f\u3001\u57fa\u672c\u539f\u5247\uff08PFS\u3001AEAD\uff09\u3092\u72a0\u7272\u306b\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u627f\u8a8d\u3055\u308c\u305f\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u304c\u512a\u5148\u3055\u308c\u308b\u3088\u3046\u306b\u9806\u5e8f\u3092\u8abf\u6574\u3059\u308b\u3002.<\/p>\n\n<h2>\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306e\u6bd4\u8f03\uff1a\u30c1\u30a7\u30c3\u30af\u306b\u304a\u3051\u308bTLS\u6a5f\u80fd<\/h2>\n\n<p>\u7ba1\u7406\u3055\u308c\u305f\u74b0\u5883\u3067\u306f\u3001\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u304c\u3044\u304b\u306b\u4e00\u8cab\u3057\u3066TLS1.3\u3001PFS\u3001\u30b9\u30c8\u30ed\u30f3\u30b0\u30b7\u30fc\u30b1\u30f3\u30b9\u3092\u5b9f\u88c5\u3057\u3066\u3044\u308b\u304b\u304c\u91cd\u8981\u3067\u3042\u308b\u3002 <strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9<\/strong> \u3092\u78ba\u4fdd\u3057\u305f\u3002\u81ea\u52d5\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306e\u54c1\u8cea\u3001\u30c6\u30b9\u30c8\u30ec\u30dd\u30fc\u30c8\u3001\u6697\u53f7\u30ea\u30b9\u30c8\u306e\u900f\u660e\u6027\u306b\u3082\u6ce8\u76ee\u3057\u3066\u3044\u307e\u3059\u3002\u6a5f\u80fd\u4e00\u89a7\u8868\u3092\u898b\u308b\u3053\u3068\u3067\u3001\u660e\u78ba\u306b\u306a\u308a\u3001\u610f\u601d\u6c7a\u5b9a\u306e\u30b9\u30d4\u30fc\u30c9\u304c\u4e0a\u304c\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u6982\u8981\u306f\u3001\u79c1\u304c\u9078\u629e\u3059\u308b\u969b\u306b\u898b\u308b\u3082\u306e\u306e\u4f8b\u3092\u793a\u3057\u3066\u3044\u308b\u3002\u901a\u5e38\u3001TLS 1.3\u3068PFS\u306e\u5024\u304c\u9ad8\u3044\u307b\u3069\u5b89\u5b9a\u3057\u305f\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u3068\u76f8\u95a2\u3057\u3001\u4f4e\u3044\u307b\u3069\u5b89\u5b9a\u3057\u305f\u30d9\u30f3\u30c1\u30de\u30fc\u30af\u3068\u76f8\u95a2\u3059\u308b\u3002 <strong>\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc<\/strong>.<\/p>\n\n<table>\n  <thead>\n    <tr>\n      <th>\u5834\u6240<\/th>\n      <th>\u30d7\u30ed\u30d0\u30a4\u30c0<\/th>\n      <th>TLS 1.3<\/th>\n      <th>\u30d4\u30fc\u30a8\u30d5\u30a8\u30b9<\/th>\n      <th>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9<\/th>\n    <\/tr>\n  <\/thead>\n  <tbody>\n    <tr>\n      <td>1<\/td>\n      <td>webhoster.de<\/td>\n      <td>\u566b<\/td>\n      <td>\u566b<\/td>\n      <td>\u9ad8\u3044<\/td>\n    <\/tr>\n    <tr>\n      <td>2<\/td>\n      <td>\u305d\u306e\u4ed6<\/td>\n      <td>\u566b<\/td>\n      <td>\u3044\u3044\u3048<\/td>\n      <td>\u30df\u30c7\u30a3\u30a2\u30e0<\/td>\n    <\/tr>\n    <tr>\n      <td>3<\/td>\n      <td>\u7b2c\u4e09\u8005<\/td>\n      <td>\u3044\u3044\u3048<\/td>\n      <td>\u566b<\/td>\n      <td>\u4f4e\u3044<\/td>\n    <\/tr>\n  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