{"id":476198,"date":"2023-08-09T07:26:52","date_gmt":"2023-08-09T07:26:52","guid":{"rendered":""},"modified":"2023-09-05T11:12:15","modified_gmt":"2023-09-05T11:12:15","slug":"certificate-authority-server","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/jp\/wiki\/certificate-authority-server\/","title":{"rendered":"\u8a3c\u660e\u6a5f\u95a2\u30b5\u30fc\u30d0\u30fc"},"content":{"rendered":"<p>\u8a3c\u660e\u6a5f\u95a2 (CA) \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068\u30b5\u30fc\u30d0\u30fc\u9593\u306e\u5b89\u5168\u306a\u63a5\u7d9a\u306b\u5fc5\u8981\u306a\u6697\u53f7\u5316\u57fa\u76e4\u3092\u63d0\u4f9b\u3059\u308b\u305f\u3081\u3001\u5b89\u5168\u306a\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u901a\u4fe1\u306e\u91cd\u8981\u306a\u5074\u9762\u3092\u62c5\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30b5\u30fc\u30d0\u30fc\u306e\u4e3b\u306a\u6a5f\u80fd\u306f\u3001\u30d1\u30d6\u30ea\u30c3\u30af \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u4ea4\u63db\u3055\u308c\u308b\u30c7\u30fc\u30bf\u306e\u8a8d\u8a3c\u3068\u6697\u53f7\u5316\u306b\u4f7f\u7528\u3055\u308c\u308b\u30c7\u30b8\u30bf\u30eb\u8a3c\u660e\u66f8\u3092\u767a\u884c\u304a\u3088\u3073\u7ba1\u7406\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n<h2>\u8a8d\u8a3c\u5c40\u30b5\u30fc\u30d0\u30fc\u306e\u8a95\u751f\u3068\u9032\u5316<\/h2>\n<p>\u8a8d\u8a3c\u5c40\u3068\u3044\u3046\u6982\u5ff5\u304c\u521d\u3081\u3066\u767b\u5834\u3057\u305f\u306e\u306f 1970 \u5e74\u4ee3\u3067\u3001\u516c\u958b\u9375\u6697\u53f7\u306e\u8a95\u751f\u3068\u540c\u6642\u671f\u3067\u3057\u305f\u3002\u3053\u306e\u6697\u53f7\u5316\u65b9\u5f0f\u306f\u3001\u5148\u99c6\u8005\u3067\u3042\u308b Martin Hellman \u3068 Whitfield Diffie \u304c\u767a\u660e\u3057\u305f\u3082\u306e\u3067\u3001\u3053\u306e\u65b9\u5f0f\u3067\u306f 2 \u3064\u306e\u9375\u304c\u4f7f\u7528\u3055\u308c\u307e\u3059\u30021 \u3064\u306f\u79d8\u5bc6\u306b\u4fdd\u6301\u3055\u308c\u308b\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8 \u30ad\u30fc\u3001\u3082\u3046 1 \u3064\u306f\u81ea\u7531\u306b\u5171\u6709\u3055\u308c\u308b\u30d1\u30d6\u30ea\u30c3\u30af \u30ad\u30fc\u3067\u3059\u3002\u305f\u3060\u3057\u3001\u516c\u958b\u9375\u306e\u4fe1\u983c\u6027\u3092\u691c\u8a3c\u3059\u308b\u306b\u306f\u4fe1\u983c\u3067\u304d\u308b\u7b2c\u4e09\u8005\u304c\u5fc5\u8981\u3067\u3042\u308a\u3001\u3053\u308c\u304c\u8a8d\u8a3c\u5c40\u3068\u3044\u3046\u6982\u5ff5\u3078\u306e\u9053\u3092\u958b\u304d\u307e\u3057\u305f\u3002<\/p>\n<p>\u6700\u521d\u306e\u904b\u7528\u8a3c\u660e\u6a5f\u95a2\u306f VeriSign \u3067\u30011995 \u5e74\u306b\u8a3c\u660e\u66f8\u306e\u767a\u884c\u3092\u958b\u59cb\u3057\u307e\u3057\u305f\u3002World Wide Web \u304c\u6210\u9577\u3059\u308b\u306b\u3064\u308c\u3066\u3001\u6697\u53f7\u5316\u3055\u308c\u305f\u901a\u4fe1\u3068\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u306a\u4fe1\u983c\u30e2\u30c7\u30eb\u306e\u5fc5\u8981\u6027\u304c\u660e\u3089\u304b\u306b\u306a\u308a\u3001\u8a3c\u660e\u6a5f\u95a2\u306e\u5f79\u5272\u304c\u307e\u3059\u307e\u3059\u91cd\u8981\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<h2>\u8a8d\u8a3c\u5c40\u30b5\u30fc\u30d0\u30fc\u306e\u5f79\u5272\u3068\u91cd\u8981\u6027<\/h2>\n<p>\u8a3c\u660e\u6a5f\u95a2\u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30c7\u30b8\u30bf\u30eb\u8a3c\u660e\u66f8\u306e\u767a\u884c\u3092\u62c5\u5f53\u3059\u308b\u4fe1\u983c\u3067\u304d\u308b\u7d44\u7e54\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u8a3c\u660e\u66f8\u306f\u3001Web \u30b5\u30a4\u30c8\u306e ID \u3092\u8a8d\u8a3c\u3057\u3001\u6697\u53f7\u5316\u3055\u308c\u305f\u63a5\u7d9a\u3092\u78ba\u7acb\u3059\u308b\u3053\u3068\u3067\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u3067\u306e\u5b89\u5168\u306a\u30c7\u30fc\u30bf\u8ee2\u9001\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/p>\n<p>\u30af\u30e9\u30a4\u30a2\u30f3\u30c8 (Web \u30d6\u30e9\u30a6\u30b6\u306a\u3069) \u304c\u30b5\u30fc\u30d0\u30fc (Web \u30b5\u30a4\u30c8\u306a\u3069) \u3068\u306e\u5b89\u5168\u306a\u63a5\u7d9a\u3092\u8981\u6c42\u3059\u308b\u3068\u3001\u30b5\u30fc\u30d0\u30fc\u306f\u30c7\u30b8\u30bf\u30eb\u8a3c\u660e\u66f8\u3092\u63d0\u793a\u3057\u307e\u3059\u3002\u4fe1\u983c\u3067\u304d\u308b CA \u306b\u3088\u3063\u3066\u7f72\u540d\u3055\u308c\u305f\u3053\u306e\u8a3c\u660e\u66f8\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u304c\u5b9f\u969b\u306b\u305d\u306e\u4e3b\u5f35\u3069\u304a\u308a\u306e\u3082\u306e\u3067\u3042\u308b\u3053\u3068\u3092\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u4fdd\u8a3c\u3057\u307e\u3059\u3002\u3053\u306e\u8a3c\u660e\u66f8\u304c\u306a\u3044\u3068\u3001\u60aa\u610f\u306e\u3042\u308b\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u304c\u6b63\u5f53\u306a\u30b5\u30fc\u30d0\u30fc\u306b\u306a\u308a\u3059\u307e\u3057\u3001\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u3084\u4e2d\u9593\u8005\u653b\u6483\u306a\u3069\u306e\u6f5c\u5728\u7684\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u8105\u5a01\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2>\u8a8d\u8a3c\u5c40\u30b5\u30fc\u30d0\u30fc\u306e\u5185\u90e8\u306e\u4ed5\u7d44\u307f<\/h2>\n<p>CA \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u8a3c\u660e\u66f8\u3092\u8981\u6c42\u3059\u308b\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e ID \u3092\u691c\u8a3c\u3057 (\u30c9\u30e1\u30a4\u30f3\u691c\u8a3c)\u3001\u8a3c\u660e\u66f8\u3092\u767a\u884c\u3057\u3001\u767a\u884c\u3057\u305f (\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u53d6\u308a\u6d88\u3057\u305f) \u8a3c\u660e\u66f8\u306e\u8a18\u9332\u3092\u4fdd\u6301\u3059\u308b\u3068\u3044\u3046 3 \u3064\u306e\u57fa\u672c\u7684\u306a\u30bf\u30b9\u30af\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u672c\u4eba\u78ba\u8a8d<\/strong>: CA \u306f\u3001\u8a3c\u660e\u66f8\u3092\u8981\u6c42\u3059\u308b\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e ID \u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002Web \u30b5\u30a4\u30c8\u306e\u5834\u5408\u3001\u901a\u5e38\u3001\u8a3c\u660e\u66f8\u304c\u8981\u6c42\u3055\u308c\u3066\u3044\u308b\u30c9\u30e1\u30a4\u30f3\u3092\u8981\u6c42\u8005\u304c\u7ba1\u7406\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u8a3c\u660e\u66f8\u306e\u767a\u884c<\/strong>: \u691c\u8a3c\u5f8c\u3001CA \u306f\u30c7\u30b8\u30bf\u30eb\u8a3c\u660e\u66f8\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u3053\u306e\u8a3c\u660e\u66f8\u306b\u306f\u3001\u8981\u6c42\u8005\u306e\u516c\u958b\u30ad\u30fc\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e ID \u306b\u95a2\u3059\u308b\u60c5\u5831\u3001\u304a\u3088\u3073 CA \u306e\u30c7\u30b8\u30bf\u30eb\u7f72\u540d\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u8a3c\u660e\u66f8\u5931\u52b9\u3068\u30b9\u30c6\u30fc\u30bf\u30b9\u60c5\u5831<\/strong>: \u8a3c\u660e\u66f8\u304c\u4fb5\u5bb3\u3055\u308c\u305f\u53ef\u80fd\u6027\u304c\u3042\u308b\u5834\u5408\u3001CA \u306f\u305d\u308c\u3092\u5931\u52b9\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001CA \u306f\u3001\u767a\u884c\u6e08\u307f\u304a\u3088\u3073\u5931\u52b9\u6e08\u307f\u306e\u8a3c\u660e\u66f8\u306e\u30ea\u30b9\u30c8\u3082\u4fdd\u6301\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u8a3c\u660e\u66f8\u5931\u52b9\u30ea\u30b9\u30c8 (CRL) \u307e\u305f\u306f\u3001\u3088\u308a\u65b0\u3057\u3044\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3067\u3042\u308b\u30aa\u30f3\u30e9\u30a4\u30f3\u8a3c\u660e\u66f8\u30b9\u30c6\u30fc\u30bf\u30b9 \u30d7\u30ed\u30c8\u30b3\u30eb (OCSP) \u3068\u547c\u3070\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u8a8d\u8a3c\u5c40\u30b5\u30fc\u30d0\u30fc\u306e\u4e3b\u306a\u6a5f\u80fd<\/h2>\n<p>\u8a3c\u660e\u6a5f\u95a2\u30b5\u30fc\u30d0\u30fc\u306e\u57fa\u672c\u7684\u306a\u6a5f\u80fd\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u4fe1\u983c\u6027<\/strong>: \u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u3067\u4fe1\u983c\u3092\u78ba\u7acb\u3059\u308b\u7d44\u7e54\u3068\u3057\u3066\u3001CA \u81ea\u4f53\u304c\u4fe1\u983c\u3055\u308c\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002CA \u306f\u3001\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u3068\u5b9f\u8df5\u304c\u5b89\u5168\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306b\u3001\u53b3\u683c\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u76e3\u67fb\u3092\u53d7\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u672c\u4eba\u78ba\u8a8d<\/strong>: CA \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u8a3c\u660e\u66f8\u3092\u8981\u6c42\u3059\u308b\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e ID \u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u8a3c\u660e\u66f8\u306e\u767a\u884c<\/strong>: CA \u30b5\u30fc\u30d0\u30fc\u306f\u30c7\u30b8\u30bf\u30eb\u8a3c\u660e\u66f8\u3092\u751f\u6210\u3057\u3001\u7f72\u540d\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u8a3c\u660e\u66f8\u306e\u5931\u52b9<\/strong>: CA \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u8a3c\u660e\u66f8\u3092\u5931\u52b9\u3055\u305b\u3001\u305d\u306e\u5931\u52b9\u3092\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u901a\u77e5\u3059\u308b\u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u7dad\u6301\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u3055\u307e\u3056\u307e\u306a\u7a2e\u985e\u306e\u8a8d\u8a3c\u5c40<\/h2>\n<p>\u4e00\u822c\u7684\u306b\u3001\u8a8d\u8a3c\u5c40\u306b\u306f\u6b21\u306e 2 \u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u30d1\u30d6\u30ea\u30c3\u30af CA<\/strong>\u3053\u308c\u3089\u306e CA \u306f\u3001Web \u30b5\u30fc\u30d0\u30fc\u306a\u3069\u306e\u516c\u958b\u30b5\u30fc\u30d0\u30fc\u7528\u306e\u8a3c\u660e\u66f8\u3092\u767a\u884c\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e CA \u306f Web \u30d6\u30e9\u30a6\u30b6\u30fc\u3084\u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0 \u30b7\u30b9\u30c6\u30e0\u306b\u3088\u3063\u3066\u672c\u8cea\u7684\u306b\u4fe1\u983c\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u3053\u308c\u3089\u306e CA \u306b\u3088\u3063\u3066\u767a\u884c\u3055\u308c\u305f\u8a3c\u660e\u66f8\u306f\u8b66\u544a\u306a\u3057\u306b\u53d7\u3051\u5165\u308c\u3089\u308c\u307e\u3059\u3002\u4f8b\u3068\u3057\u3066\u306f\u3001DigiCert\u3001GlobalSign\u3001Let&#039;s Encrypt \u306a\u3069\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8 CA<\/strong>: \u3053\u308c\u3089\u306e CA \u306f\u7d44\u7e54\u5185\u3067\u4f7f\u7528\u3055\u308c\u3001\u5916\u90e8\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u306f\u672c\u8cea\u7684\u306b\u4fe1\u983c\u3055\u308c\u307e\u305b\u3093\u3002\u5185\u90e8\u30b5\u30fc\u30d0\u30fc\u3001\u30e6\u30fc\u30b6\u30fc\u3001\u304a\u3088\u3073\u30c7\u30d0\u30a4\u30b9\u306b\u5bfe\u3057\u3066\u8a3c\u660e\u66f8\u3092\u767a\u884c\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<table>\n<thead>\n<tr>\n<th>\u30bf\u30a4\u30d7<\/th>\n<th>\u4f7f\u7528\u4e8b\u4f8b<\/th>\n<th>\u4f8b<\/th>\n<th>\u4fe1\u983c<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30d1\u30d6\u30ea\u30c3\u30af CA<\/td>\n<td>\u30d1\u30d6\u30ea\u30c3\u30af\u30b5\u30fc\u30d0\u30fc<\/td>\n<td>DigiCert\u3001GlobalSign\u3001Let&#039;s Encrypt<\/td>\n<td>\u672c\u8cea\u7684\u306b\u4fe1\u983c\u3067\u304d\u308b<\/td>\n<\/tr>\n<tr>\n<td>\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8 CA<\/td>\n<td>\u5185\u90e8\u4f7f\u7528<\/td>\n<td>\u30b3\u30fc\u30dd\u30ec\u30fc\u30c8CA<\/td>\n<td>\u624b\u52d5\u3067\u4fe1\u983c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u8a8d\u8a3c\u5c40\u30b5\u30fc\u30d0\u30fc\u306e\u6d3b\u7528: \u8ab2\u984c\u3068\u89e3\u6c7a\u7b56<\/h2>\n<p>\u8a3c\u660e\u6a5f\u95a2\u30b5\u30fc\u30d0\u30fc\u306e\u4f7f\u7528\u306b\u304a\u3051\u308b\u4e3b\u306a\u8ab2\u984c\u306f\u3001\u4fe1\u983c\u306e\u7ba1\u7406\u3067\u3059\u3002\u4e0d\u6b63\u306a CA \u3084\u4fb5\u5bb3\u3055\u308c\u305f CA \u3092\u4fe1\u983c\u3059\u308b\u3068\u3001\u6df1\u523b\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u8105\u5a01\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3092\u8efd\u6e1b\u3059\u308b\u305f\u3081\u306b\u3001\u30d6\u30e9\u30a6\u30b6\u3068\u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0 \u30b7\u30b9\u30c6\u30e0\u306f\u4fe1\u983c\u3067\u304d\u308b CA \u306e\u30ea\u30b9\u30c8\u3092\u4fdd\u6301\u3057\u3001\u5b9a\u671f\u7684\u306b\u66f4\u65b0\u3057\u307e\u3059\u3002<\/p>\n<p>\u3082\u3046 1 \u3064\u306e\u8ab2\u984c\u306f\u3001\u8a3c\u660e\u66f8\u306e\u6709\u52b9\u671f\u9650\u3067\u3059\u3002\u8a3c\u660e\u66f8\u306f\u7279\u5b9a\u306e\u671f\u9593\u767a\u884c\u3055\u308c\u3001\u305d\u306e\u5f8c\u306f\u66f4\u65b0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u8a3c\u660e\u66f8\u306e\u66f4\u65b0\u3092\u6020\u308b\u3068\u3001\u30b5\u30fc\u30d3\u30b9\u304c\u4e2d\u65ad\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002Automated Certificate Management Environment (ACME) \u30d7\u30ed\u30c8\u30b3\u30eb\u306a\u3069\u306e\u81ea\u52d5\u5316\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u306f\u3001\u8a3c\u660e\u66f8\u306e\u767a\u884c\u3068\u66f4\u65b0\u3092\u81ea\u52d5\u5316\u3059\u308b\u3053\u3068\u3067\u3001\u3053\u306e\u554f\u984c\u3092\u8efd\u6e1b\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>\u8a8d\u8a3c\u5c40\u30b5\u30fc\u30d0\u30fc\u306e\u6bd4\u8f03<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u6210\u5206<\/th>\n<th>\u8a3c\u660e\u3059\u308b\u6a5f\u95a2<\/th>\n<th>DNS\u30b5\u30fc\u30d0\u30fc<\/th>\n<th>\u30d7\u30ed\u30ad\u30b7\u30b5\u30fc\u30d0\u30fc<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30e1\u30a4\u30f3\u6a5f\u80fd<\/td>\n<td>\u30c7\u30b8\u30bf\u30eb\u8a3c\u660e\u66f8\u306e\u767a\u884c\u3068\u7ba1\u7406<\/td>\n<td>\u30c9\u30e1\u30a4\u30f3\u540d\u3092IP\u30a2\u30c9\u30ec\u30b9\u306b\u5909\u63db\u3059\u308b<\/td>\n<td>\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u4ef2\u4ecb\u5f79\u3092\u52d9\u3081\u308b<\/td>\n<\/tr>\n<tr>\n<td>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30ed\u30fc\u30eb<\/td>\n<td>\u30b5\u30fc\u30d0\u30fc\u3092\u8a8d\u8a3c\u3057\u3001\u30c7\u30fc\u30bf\u3092\u6697\u53f7\u5316\u3059\u308b<\/td>\n<td>\u30c9\u30e1\u30a4\u30f3\u30b9\u30d7\u30fc\u30d5\u30a3\u30f3\u30b0\u304b\u3089\u4fdd\u8b77<\/td>\n<td>\u533f\u540d\u6027\u3092\u63d0\u4f9b\u3057\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3059\u308b<\/td>\n<\/tr>\n<tr>\n<td>\u4fe1\u983c\u304c\u5fc5\u8981<\/td>\n<td>\u306f\u3044<\/td>\n<td>\u90e8\u5206\u7684\u306b<\/td>\n<td>\u3044\u3044\u3048<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u8a8d\u8a3c\u5c40\u30b5\u30fc\u30d0\u30fc\u306e\u5c06\u6765<\/h2>\n<p>\u8a8d\u8a3c\u5c40\u30b5\u30fc\u30d0\u30fc\u306e\u9032\u5316\u306f\u3001\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u6697\u53f7\u5316\u306e\u5e45\u5e83\u3044\u30c8\u30ec\u30f3\u30c9\u3068\u5bc6\u63a5\u306b\u7d50\u3073\u3064\u3044\u3066\u3044\u307e\u3059\u3002\u6ce8\u76ee\u3059\u3079\u304d\u7126\u70b9\u306f\u3001\u91cf\u5b50\u8010\u6027\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3067\u3059\u3002\u91cf\u5b50\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u9032\u5316\u3059\u308b\u306b\u3064\u308c\u3066\u3001\u65e2\u5b58\u306e\u6697\u53f7\u5316\u30b7\u30b9\u30c6\u30e0\u304c\u8106\u5f31\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u3001\u65b0\u3057\u3044\u91cf\u5b50\u8010\u6027\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u958b\u767a\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002\u8a8d\u8a3c\u5c40\u30b5\u30fc\u30d0\u30fc\u306f\u3001\u8a3c\u660e\u66f8\u3092\u767a\u884c\u3059\u308b\u3068\u304d\u306b\u3053\u308c\u3089\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u63a1\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3055\u3089\u306b\u3001\u30d6\u30ed\u30c3\u30af\u30c1\u30a7\u30fc\u30f3\u306a\u3069\u306e\u5206\u6563\u578b\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u306e\u51fa\u73fe\u306b\u3088\u308a\u3001\u4fe1\u983c\u3092\u7ba1\u7406\u3057\u8a3c\u660e\u66f8\u3092\u767a\u884c\u3059\u308b\u65b0\u3057\u3044\u65b9\u6cd5\u304c\u5c0e\u5165\u3055\u308c\u3001\u5f93\u6765\u306e CA \u30e2\u30c7\u30eb\u306e\u9032\u5316\u306e\u9053\u304c\u958b\u304b\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2>\u8a3c\u660e\u6a5f\u95a2\u30b5\u30fc\u30d0\u30fc\u3068\u30d7\u30ed\u30ad\u30b7\u30b5\u30fc\u30d0\u30fc<\/h2>\n<p>OneProxy \u304c\u63d0\u4f9b\u3059\u308b\u3088\u3046\u306a\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068\u30b5\u30fc\u30d0\u30fc\u306e\u9593\u306e\u4ef2\u4ecb\u5f79\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002\u5b89\u5168\u306a\u63a5\u7d9a (HTTPS) \u306e\u5834\u5408\u3001\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u6697\u53f7\u5316\u3055\u308c\u305f\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u89e3\u8aad\u3059\u308b\u3053\u3068\u306a\u304f\u8ee2\u9001\u3059\u308b\u3060\u3051\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u306b\u304a\u3051\u308b CA \u30b5\u30fc\u30d0\u30fc\u306e\u5f79\u5272\u306f\u3001\u3053\u308c\u3089\u306e\u5b89\u5168\u306a\u63a5\u7d9a\u3092\u78ba\u7acb\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u4fe1\u983c\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u5b89\u5168\u306a\u63a5\u7d9a\u3092\u8981\u6c42\u3059\u308b\u3068\u3001\u30bf\u30fc\u30b2\u30c3\u30c8 \u30b5\u30fc\u30d0\u30fc\u306f CA \u304b\u3089\u306e\u8a3c\u660e\u66f8\u3092\u63d0\u4f9b\u3057\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u610f\u56f3\u3057\u305f\u30b5\u30fc\u30d0\u30fc\u3068\u901a\u4fe1\u3057\u3066\u304a\u308a\u3001\u507d\u306e\u30b5\u30fc\u30d0\u30fc\u3068\u901a\u4fe1\u3057\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u3068 CA \u30b5\u30fc\u30d0\u30fc\u306f\u305d\u308c\u305e\u308c\u7570\u306a\u308b\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u304c\u3001\u3069\u3061\u3089\u3082\u30aa\u30f3\u30e9\u30a4\u30f3\u901a\u4fe1\u306e\u5168\u4f53\u7684\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u306b\u8ca2\u732e\u3057\u307e\u3059\u3002<\/p>\n<h2>\u95a2\u9023\u30ea\u30f3\u30af<\/h2>\n<ol>\n<li><a href=\"https:\/\/www.ssl.com\/faqs\/what-is-a-certificate-authority\/\" target=\"_new\" rel=\"noopener nofollow\">\u8a8d\u8a3c\u5c40 (CA) \u3068\u306f\u4f55\u3067\u3059\u304b? \u2013 SSL.com<\/a><\/li>\n<li><a href=\"https:\/\/www.ibm.com\/docs\/en\" target=\"_new\" rel=\"noopener nofollow\">CA \u8a3c\u660e\u66f8\u3068\u306f\u4f55\u3067\u3059\u304b? \u2013 IBM \u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/a><\/li>\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/Certificate_authority\" target=\"_new\" rel=\"noopener nofollow\">\u8a8d\u8a3c\u5c40 \u2013 Wikipedia<\/a><\/li>\n<li><a href=\"https:\/\/resources.infosecinstitute.com\/topic\/what-is-pki-understanding-public-key-infrastructure\/\" target=\"_new\" rel=\"noopener nofollow\">\u516c\u958b\u9375\u57fa\u76e4 (PKI) \u2013 \u60c5\u5831\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30ea\u30bd\u30fc\u30b9<\/a><\/li>\n<li><a href=\"https:\/\/developers.google.com\/web\/fundamentals\/security\/encrypt-in-transit\/why-https\" target=\"_new\" rel=\"noopener nofollow\">HTTPS \u306b\u3088\u308b Web \u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4fdd\u8b77 \u2013 Google Developers<\/a><\/li>\n<li><a href=\"https:\/\/www.cloudflare.com\/learning\/ssl\/how-does-ssl-work\/\" target=\"_new\" rel=\"noopener nofollow\">SSL\/TLS \u306f\u3069\u306e\u3088\u3046\u306b\u6a5f\u80fd\u3057\u307e\u3059\u304b? \u2013 Cloudflare<\/a><\/li>\n<li><a href=\"https:\/\/oneproxy.pro\/jp\/what-is-proxy\/\" target=\"_new\" rel=\"noopener\">\u30d7\u30ed\u30ad\u30b7\u30b5\u30fc\u30d0\u30fc\u3068\u306f? \u2013 OneProxy<\/a><\/li>\n<li><a href=\"https:\/\/arxiv.org\/abs\/1804.00238\" target=\"_new\" rel=\"noopener nofollow\">\u91cf\u5b50\u8010\u6027\u306e\u3042\u308b\u516c\u958b\u9375\u6697\u53f7\uff1a\u6982\u8981 \u2013 Arxiv<\/a><\/li>\n<li><a href=\"https:\/\/www.cbinsights.com\/research\/blockchain-disrupting-banking\/\" target=\"_new\" rel=\"noopener nofollow\">\u30d6\u30ed\u30c3\u30af\u30c1\u30a7\u30fc\u30f3\u304c\u9280\u884c\u696d\u754c\u306b\u4e0e\u3048\u308b\u7834\u58ca\u7684\u5909\u5316 \u2013 CBInsights<\/a><\/li>\n<\/ol>","protected":false},"featured_media":476199,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476198","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Certificate Authority Server: The Backbone of Online Trust<\/mark>","faq_items":[{"question":"What is a Certificate Authority Server?","answer":"<p>A Certificate Authority server is a trusted entity responsible for issuing digital certificates. These certificates authenticate the identity of websites and ensure secure data transmission over the internet by establishing an encrypted connection.<\/p>"},{"question":"When and where did the concept of Certificate Authority Server originate?","answer":"<p>The notion of a Certificate Authority first surfaced in the 1970s, coinciding with the birth of public-key cryptography. The first operational Certificate Authority was VeriSign, which began issuing certificates in 1995.<\/p>"},{"question":"What are the key functions of a Certificate Authority Server?","answer":"<p>A Certificate Authority server performs three fundamental tasks: it verifies the identity of entities requesting certificates (domain validation), issues certificates, and keeps a record of the certificates it has issued and, in some cases, revoked.<\/p>"},{"question":"What are the key features of Certificate Authority Servers?","answer":"<p>The fundamental features of Certificate Authority servers include trustworthiness, identity verification, certificate issuance, and certificate revocation.<\/p>"},{"question":"What are the types of Certificate Authorities?","answer":"<p>There are generally two types of Certificate Authorities: Public CAs, which issue certificates for publicly accessible servers, and Private CAs, which are used within an organization for internal servers, users, and devices.<\/p>"},{"question":"What challenges can arise when using Certificate Authority Servers?","answer":"<p>The primary challenge in using Certificate Authority servers is managing trust. Trusting a rogue or compromised CA can lead to severe security threats. Another challenge is the expiration of certificates, which must be renewed after a specific duration.<\/p>"},{"question":"How are Certificate Authority Servers evolving with future technologies?","answer":"<p>The evolution of Certificate Authority servers is closely tied to the broader trends in cybersecurity and cryptography. A notable area of focus is quantum-resistant algorithms. Additionally, decentralized technologies like blockchain may introduce new ways of managing trust and issuing certificates.<\/p>"},{"question":"How do Certificate Authority Servers and Proxy Servers interact?","answer":"<p>Proxy servers function as intermediaries between a client and a server. A CA server's role in this process is to provide the necessary trust for establishing secure connections. While they play different roles, both proxy servers and CA servers contribute to the overall security and privacy of online communications.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/476198","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/476198\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media\/476199"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media?parent=476198"}],"curies":[{"name":"\u3046\u30fc\u3093","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}