{"id":1484,"date":"2023-02-25T03:26:42","date_gmt":"2023-02-25T03:26:42","guid":{"rendered":"https:\/\/securitybriefing.net\/?p=1484"},"modified":"2023-02-25T03:26:42","modified_gmt":"2023-02-25T03:26:42","slug":"%e3%83%a2%e3%83%90%e3%82%a4%e3%83%ab%e3%82%bb%e3%83%b3%e3%82%b7%e3%83%b3%e3%82%b0-wifi-%e5%b1%8b%e5%86%85%e3%83%ad%e3%83%bc%e3%82%ab%e3%83%a9%e3%82%a4%e3%82%bc%e3%83%bc%e3%82%b7%e3%83%a7%e3%83%b3","status":"publish","type":"post","link":"https:\/\/securitybriefing.net\/ja\/%e3%83%86%e3%82%af%e3%83%8e%e3%83%ad%e3%82%b8%e3%83%bc\/%e3%83%a2%e3%83%90%e3%82%a4%e3%83%ab%e3%82%bb%e3%83%b3%e3%82%b7%e3%83%b3%e3%82%b0-wifi-%e5%b1%8b%e5%86%85%e3%83%ad%e3%83%bc%e3%82%ab%e3%83%a9%e3%82%a4%e3%82%bc%e3%83%bc%e3%82%b7%e3%83%a7%e3%83%b3\/","title":{"rendered":"\u30e2\u30d0\u30a4\u30eb\u30bb\u30f3\u30b7\u30f3\u30b0WiFi\u5c4b\u5185\u30ed\u30fc\u30ab\u30e9\u30a4\u30bc\u30fc\u30b7\u30e7\u30f3"},"content":{"rendered":"<h2 class=\"wp-block-heading\" id=\"introduction\">\u5c0e\u5165<\/h2>\n\n\n<p>\u8fd1\u5e74\u3001\u4f4d\u7f6e\u60c5\u5831\u306e\u554f\u984c\u306f\u307e\u3059\u307e\u3059\u91cd\u8981\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002Google 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class=\"wp-block-heading\" id=\"wireless-communications\">\u7121\u7dda\u901a\u4fe1<\/h2>\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" src=\"http:\/\/securitybriefing.net\/wp-content\/uploads\/2023\/02\/Wireless-Communications-banner-1-1-2.jpg\" alt=\"\u7121\u7dda\u901a\u4fe1\" class=\"wp-image-1502\"\/><\/figure>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" 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<\/p>\n\n\n\n<p>\u6700\u5927\u30c7\u30fc\u30bf\u4f1d\u9001\u901f\u5ea6\u306f\u3001\u30d5\u30ec\u30fc\u30e0\u306e\u4e00\u90e8\u304c\u30e1\u30c7\u30a3\u30a2\u3078\u306e\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u3001\u30d5\u30ed\u30fc\u5236\u5fa1\u3001\u6697\u53f7\u5316\u306a\u3069\u306e\u60c5\u5831\u306b\u5360\u6709\u3055\u308c\u308b\u305f\u3081\u3001\u6700\u5927\u306e\u300c\u6709\u7528\u306a\u300d\u30c7\u30fc\u30bf\u4f1d\u9001\u901f\u5ea6\u3092\u8868\u3059\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5b9f\u969b\u306e\u30c7\u30fc\u30bf\u8ee2\u9001\u901f\u5ea6\u306f\u3001\u5e38\u306b\u6a19\u6e96\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u5024\u3088\u308a\u3082\u4f4e\u304f\u306a\u308a\u307e\u3059\u3002\u7121\u7dda\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306f\u7a7a\u4e2d\u306b\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u3055\u308c\u308b\u305f\u3081\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u91cd\u8981\u306a\u8981\u7d20\u3068\u306a\u308a\u3001\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u3092\u9632\u3050\u305f\u3081\u306b\u8a8d\u8a3c\u3068\u30c7\u30fc\u30bf\u6697\u53f7\u5316\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"wifi-indoor-localization\">WiFi\u5ba4\u5185\u30ed\u30fc\u30ab\u30e9\u30a4\u30bc\u30fc\u30b7\u30e7\u30f3<\/h2>\n\n\n<p>WiFi\u306f\u3001Wireless Fidelity\u306e\u7565\u3067\u3001\u7570\u306a\u308b\u30c7\u30d0\u30a4\u30b9\u9593\u3067\u4e92\u63db\u6027\u306e\u3042\u308b\u7121\u7dda\u63a5\u7d9a\u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u78ba\u7acb\u3059\u308b\u5fc5\u8981\u6027\u304b\u3089\u751f\u307e\u308c\u307e\u3057\u305f\u3002\u8a00\u3044\u63db\u3048\u308c\u3070\u3001Wi-Fi\u306f\u3001\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\uff08AP\uff09\u307e\u305f\u306f\u30db\u30c3\u30c8\u30b9\u30dd\u30c3\u30c8\u3068\u3057\u3066\u77e5\u3089\u308c\u308b\u30c7\u30d0\u30a4\u30b9\u3092\u4ecb\u3057\u3066\u30e6\u30fc\u30b6\u30fc\u304c\u4e92\u3044\u306b\u7121\u7dda\u3067\u63a5\u7d9a\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u7121\u7dda\u6280\u8853\u3067\u3059\u3002\u4e00\u822c\u7684\u306b2.4 GHz\u30685 GHz\u306e\u5468\u6ce2\u6570\u3067\u52d5\u4f5c\u3057\u3001Institute of Electrical and Electronics Engineers\uff08IEEE\uff09\u306b\u3088\u3063\u3066\u6a19\u6e96\u5316\u3055\u308c\u307e\u3057\u305f\u3002\u9577\u5e74\u306b\u308f\u305f\u308a\u3001\u6570\u591a\u304f\u306eWiFi\u30d7\u30ed\u30c8\u30b3\u30eb\u6a19\u6e96\u304c\u958b\u767a\u3055\u308c\u3001\u524d\u8eab\u306e\u3044\u304f\u3064\u304b\u306e\u5074\u9762\u304c\u6539\u5584\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"the-evolution-of-wifi-technology\">Wi-Fi\u6280\u8853\u306e\u9032\u5316<\/h2>\n\n\n<p>\u6700\u521d\u306e\u516c\u5f0f\u6a19\u6e96\u306f802.11b\u3067\u3001\u305d\u306e\u5f8c802.11a\u3001802.11g\u3001802.11n\u3001802.11ac\u304c\u7d9a\u304d\u307e\u3057\u305f\u3002b\u304a\u3088\u3073g\u30d0\u30fc\u30b8\u30e7\u30f3\u306f2.4 GHz\u5e2f\u3067\u52d5\u4f5c\u3057\u3001\u6700\u3082\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u30022019\u5e74\u306b\u306f802.11ax\uff08Wi-Fi 6\u3068\u547c\u3070\u308c\u308b\uff09\u304c\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u3001802.11ac\u306e4\u500d\u306e\u6027\u80fd\u3092\u6301\u3064\u3068\u63a8\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u30025GHz\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306f2.4 GHz\u3088\u308a\u3082\u9ad8\u901f\u3067\u3059\u304c\u3001\u58c1\u3084\u5bb6\u5177\u306a\u3069\u306e\u969c\u5bb3\u7269\u3092\u901a\u904e\u3059\u308b\u52b9\u679c\u304c\u4f4e\u304f\u3001\u30ab\u30d0\u30ec\u30c3\u30b8\u7bc4\u56f2\u304c\u72ed\u304f\u306a\u308a\u307e\u3059\u3002\u5e73\u5747\u7684\u306aWi-Fi\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u7bc4\u56f2\u306f\u3001\u5c4b\u5916\u3067300\u30d5\u30a3\u30fc\u30c8\u3001\u5c4b\u5185\u3067150\u30d5\u30a3\u30fc\u30c8\u3067\u3059\u3002<\/p>\n\n\n\n<p>Wi-Fi\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4f7f\u7528\u3057\u3066\u4f4d\u7f6e\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u4e3b\u306a\u5229\u70b9\u306f\u3001\u5efa\u7269\u5185\u306b\u65e2\u306b\u30a4\u30f3\u30d5\u30e9\u304c\u6574\u5099\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3067\u3059\u3002\u5bb6\u5ead\u3084\u30d3\u30b8\u30cd\u30b9\u5411\u3051\u306e\u7121\u7dda\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u6025\u901f\u306a\u6210\u9577\u306b\u3088\u308a\u3001\u5efa\u7269\u5185\u306b\u8907\u6570\u306eWi-Fi\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u304c\u898b\u3064\u304b\u308b\u3053\u3068\u306f\u4e00\u822c\u7684\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u306f\u72ec\u7acb\u3057\u3066\u8a2d\u7f6e\u3055\u308c\u308b\u3053\u3068\u3082\u3042\u308c\u3070\u3001\u8fd1\u96a3\u306e\u4ed6\u306e\u5834\u6240\u304b\u3089\u6765\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u4e00\u65b9\u3001\u6700\u5927\u306e\u554f\u984c\u306f\u3001802.11\u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u3053\u306e\u3088\u3046\u306a\u4f7f\u3044\u65b9\u3092\u60f3\u5b9a\u3057\u3066\u4f5c\u3089\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u3067\u3059\u3002\u81ea\u5206\u306e\u4f4d\u7f6e\u3092\u78ba\u8a8d\u3057\u305f\u3044\u3068\u304d\u306f\u6bce\u56de\u3001\u9069\u5207\u306a\u60c5\u5831\u3092\u8981\u6c42\u3059\u308b\u305f\u3081\u306b\u3059\u3079\u3066\u306eWi-Fi\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u306b\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u4fe1\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u3053\u308c\u306b\u3088\u308a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u9045\u304f\u306a\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u7b2c\u4e09\u8005\u304c\u6240\u6709\u3059\u308b\u4e00\u90e8\u306e\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u304c\u305d\u306e\u3088\u3046\u306a\u8981\u6c42\u3092\u30d6\u30ed\u30c3\u30af\u3059\u308b\u53ef\u80fd\u6027\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>IEEE 802.11\u30ef\u30a4\u30e4\u30ec\u30b9\u898f\u683c\u306f\u3001CSMA\/CA\uff08Carrier Sense Multiple Access with Collision Avoidance\uff09\u3068\u547c\u3070\u308c\u308b\u30e1\u30c7\u30a3\u30a2\u30a2\u30af\u30bb\u30b9\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u305d\u306e\u540d\u524d\u306f\u3001\u6709\u7dda\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u4f7f\u7528\u3055\u308c\u308b\u3082\u306e\uff08CSMA\/CD: Carrier Sense Multiple Access with Collision Detection\uff09\u3068\u4f3c\u3066\u3044\u307e\u3059\u304c\u3001\u305d\u306e\u52d5\u4f5c\u306f\u7570\u306a\u308a\u307e\u3059\u3002\u30ef\u30a4\u30e4\u30ec\u30b9\u306e\u5834\u5408\u3001CA\u306f\u885d\u7a81\u56de\u907f\u3092\u6307\u3057\u307e\u3059\u304c\u3001\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3067\u306f\u885d\u7a81\u691c\u51fa\u3092\u6307\u3057\u307e\u3059\u3002Wi-Fi\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306f\u534a\u4e8c\u91cd\u3067\u3042\u308a\u3001\u30c7\u30d0\u30a4\u30b9\u306f\u540c\u3058\u7121\u7dda\u30c1\u30e3\u30cd\u30eb\u3067\u540c\u6642\u306b\u9001\u4fe1\u3068\u53d7\u4fe1\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002\u30c7\u30d0\u30a4\u30b9\u306f\u9001\u4fe1\u3057\u306a\u304c\u3089\u300c\u805e\u304f\u300d\u3053\u3068\u304c\u3067\u304d\u306a\u3044\u305f\u3081\u3001\u885d\u7a81\u3092\u691c\u51fa\u3067\u304d\u307e\u305b\u3093\u3002\u3053\u306e\u305f\u3081\u3001IEEE\u306e\u5c02\u9580\u5bb6\u306fDCF\uff08Distributed Control Function\uff09\u3068\u547c\u3070\u308c\u308b\u885d\u7a81\u56de\u907f\u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u4f7f\u7528\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"wifi-network-security\">WiFi\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3<\/h2>\n\n\n<p class=\"translation-block\">\u4f1d\u9001\u5a92\u4f53\u306f\u7a7a\u6c17\u3067\u3042\u308a\u3001\u3069\u306e\u30c7\u30d0\u30a4\u30b9\u3067\u3082\u81ea\u7136\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u305f\u3081\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u8a31\u53ef\u3055\u308c\u305f\u30c7\u30d0\u30a4\u30b9\u306b\u5236\u9650\u3059\u308b\u3053\u3068\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u3053\u308c\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306b\u3001802.11i\u898f\u683c\u306f\u3001\u30c7\u30d0\u30a4\u30b9\u304c\u8a8d\u8a3c\u306b\u30ad\u30fc\u3092\u4f7f\u7528\u3059\u308b<strong>WEP<\/strong>\u3001<strong>WPA<\/strong>\u3001<strong>WPA2<\/strong>\u306a\u3069\u306e\u3055\u307e\u3056\u307e\u306a\u30b7\u30b9\u30c6\u30e0\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002\u30a2\u30af\u30bb\u30b9\u30dd\u30a4\u30f3\u30c8\u306f\u5b9a\u671f\u7684\u306b<strong>SSID<\/strong>\uff08Service Set Identifier\uff09\u3092\u542b\u3080\u5e83\u544a\u3092\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u6b63\u3057\u3044AP\u3092\u8b58\u5225\u3057\u3066\u63a5\u7d9a\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002\u63a5\u7d9a\u30d7\u30ed\u30bb\u30b9\u306f\u3001\u30ad\u30fc\u304c\u751f\u6210\u3055\u308c\u308b\u8a8d\u8a3c\u624b\u9806\u304b\u3089\u59cb\u307e\u308a\u307e\u3059\u3002WiFi\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u306f3\u7a2e\u985e\u306e\u8a8d\u8a3c\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6709\u7dda\u540c\u7b49\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u30ad\u30fc (WEP)<\/strong>:<\/li>\n<\/ol>\n\n\n\n<p>\u3053\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b7\u30b9\u30c6\u30e0\u306e\u76ee\u7684\u306f\u3001\u7121\u7dda\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u6709\u7dda\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u540c\u3058\u304f\u3089\u3044\u5b89\u5168\u306b\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u6b8b\u5ff5\u306a\u304c\u3089\u3001\u3059\u3050\u306b\u59a5\u5354\u3055\u308c\u3001\u305d\u306e\u4f7f\u7528\u306f\u73fe\u5728\u63a8\u5968\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002\u8a8d\u8a3c\u30d7\u30ed\u30bb\u30b9\u306e\u958b\u59cb\u6642\u306b\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30c7\u30d0\u30a4\u30b9\u306f\u6697\u53f7\u5316\u3055\u308c\u3066\u3044\u306a\u3044\u30c6\u30ad\u30b9\u30c8\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u4fe1\u3057\u3001AP\u306f\u5171\u6709\u30ad\u30fc\u3092\u4f7f\u7528\u3057\u3066\u6697\u53f7\u5316\u3057\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u8fd4\u3057\u307e\u3059\u3002\u30ad\u30fc\u306f\u901a\u5e38128\u307e\u305f\u306f256\u30d3\u30c3\u30c8\u3067\u3059\u3002WEP\u306e\u4e3b\u306a\u554f\u984c\u306f\u30ad\u30fc\u7ba1\u7406\u3067\u3059\u3002\u4e00\u822c\u7684\u306b\u3001\u30ad\u30fc\u306f\u624b\u52d5\u3067\u914d\u5e03\u3055\u308c\u308b\u304b\u3001\u5225\u306e\u5b89\u5168\u306a\u30eb\u30fc\u30c8\u3092\u901a\u3058\u3066\u914d\u5e03\u3055\u308c\u307e\u3059\u3002WEP\u306f\u5171\u6709\u30ad\u30fc\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u3059\u3079\u3066\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u540c\u3058\u30ad\u30fc\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u30ad\u30fc\u304c\u767a\u898b\u3055\u308c\u308b\u3068\u3001\u3059\u3079\u3066\u306e\u30e6\u30fc\u30b6\u30fc\u304c\u5371\u967a\u306b\u3055\u3089\u3055\u308c\u307e\u3059\u3002\u30ad\u30fc\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f\u3001\u8a8d\u8a3c\u30d5\u30ec\u30fc\u30e0\u306e\u8fd4\u9001\u3092\u5f97\u308b\u307e\u3067\u805e\u304f\u3060\u3051\u3067\u5341\u5206\u3067\u3059\u3002WEP\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u306f\u4f55\u3082\u3057\u306a\u3044\u3088\u308a\u306f\u826f\u3044\u3067\u3059\u3002\u3088\u308a\u826f\u3044\u3082\u306e\u304c\u306a\u3044\u5834\u5408\u306f\u3001\u305d\u308c\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002\u826f\u3044\u63a8\u5968\u306f\u3001SSL\u3001TSL\u6697\u53f7\u5316\u306a\u3069\u306e\u4e0a\u4f4d\u30ec\u30a4\u30e4\u30fc\u3067\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3059\u3002.<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"2\">\n<li><strong>Wi-Fi \u4fdd\u8b77\u3055\u308c\u305f\u30a2\u30af\u30bb\u30b9 (WPA)<\/strong><\/li>\n<\/ol>\n\n\n\n<p class=\"translation-block\">WEP\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u6b20\u9665\u3092\u514b\u670d\u3059\u308b\u305f\u3081\u306b\u3001WPA\u304c\u958b\u767a\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u306e\u30b7\u30b9\u30c6\u30e0\u306fWiFi Alliance\u306e\u5f8c\u63f4\u306e\u4e0b\u3067\u8a2d\u8a08\u3055\u308c\u3001802.11i\u6a19\u6e96\u306e\u4e00\u90e8\u3092\u4f7f\u7528\u3057\u307e\u3057\u305f\u3002\u305d\u306e\u5f8c\u3001WEP\u3092\u7f6e\u304d\u63db\u3048\u308b\u305f\u3081\u306b\u66f4\u65b0\u3055\u308c\u307e\u3057\u305f\u3002WPA\u306e\u4e3b\u8981\u306a\u8981\u7d20\u306e1\u3064\u306f\u3001<strong>TKIP<\/strong>\uff08Temporal Key Integrity Protocol\uff09\u3067\u3059\u3002\u3053\u308c\u306f802.11i\u6a19\u6e96\u306e\u4e00\u90e8\u3067\u3042\u308a\u3001\u52d5\u7684\u306a\u30ad\u30fc\u3092\u751f\u6210\u3057\u3066\u52d5\u4f5c\u3057\u307e\u3059\u3002WPA\u306f\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u3001<strong>AES-CCMP<\/strong>\uff08Advanced Encryption Standard \u2013 Counter Mode with Cipher Block Chaining Message Authentication Code Protocol\uff09\u3092TKIP\u306e\u4ee3\u308f\u308a\u306b\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\">\n<li><strong>WPA2\/WPAv2<\/strong>:<\/li>\n<\/ol>\n\n\n\n<p>\u73fe\u5728\u3001WiFi\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4fdd\u8b77\u3059\u308b\u305f\u3081\u306b\u5229\u7528\u53ef\u80fd\u306a\u6700\u826f\u306e\u6280\u8853\u3067\u3059\u3002\u5fc5\u9808\u306eAES-CCMP\u3092\u4f7f\u7528\u3057\u3001\u4eca\u65e5\u88fd\u9020\u3055\u308c\u3066\u3044\u308b\u3059\u3079\u3066\u306e\u30c7\u30d0\u30a4\u30b9\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"standards\">\u6a19\u6e96<\/h2>\n\n\n<p>\u73fe\u5728\u3001\u79c1\u305f\u3061\u306f\u65e5\u5e38\u7684\u306b\u4f7f\u7528\u3059\u308b\u8907\u6570\u306e\u30c7\u30d0\u30a4\u30b9\u306b\u63a5\u7d9a\u3092\u63d0\u4f9b\u3059\u308b\u3055\u307e\u3056\u307e\u306a\u30ef\u30a4\u30e4\u30ec\u30b9\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u3059\u3002\u4e00\u822c\u7684\u306b\u4f7f\u7528\u3055\u308c\u308b\u3055\u307e\u3056\u307e\u306a\u901a\u4fe1\u898f\u683c\u306f\u300cWiFi\u300d\u3068\u3044\u3046\u540d\u524d\u3067\u3001\u4ee5\u4e0b\u3092\u542b\u307f\u307e\u3059\uff1a<\/p>\n\n\n\n<p class=\"translation-block\"><strong>802.11a<\/strong>: 5 GHz ISM\u30d0\u30f3\u30c9\u306e\u30ad\u30e3\u30ea\u30a2\u3092\u4f7f\u7528\u3057\u3001\u6700\u592754 Mbps\u306e\u30c7\u30fc\u30bf\u8ee2\u9001\u901f\u5ea6\u3092\u5b9f\u73fe\u3059\u308b\u7121\u7dda\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3002<\/p>\n\n\n\n<p>\u2022 <strong>802.11b<\/strong>: 2.4 GHz ISM\u30d0\u30f3\u30c9\u3067\u30ad\u30e3\u30ea\u30a2\u3092\u6301\u3061\u3001\u6700\u592711 Mbps\u306e\u30c7\u30fc\u30bf\u8ee2\u9001\u901f\u5ea6\u3092\u6301\u3064\u7121\u7dda\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3002. <\/p>\n\n\n\n<p class=\"translation-block\">\u2022 <strong>802.11g<\/strong>: 2.4 GHz ISM\u30d0\u30f3\u30c9\u306e\u30ad\u30e3\u30ea\u30a2\u3092\u4f7f\u7528\u3057\u3001\u6700\u592754 Mbps\u306e\u30c7\u30fc\u30bf\u8ee2\u9001\u901f\u5ea6\u3092\u5b9f\u73fe\u3059\u308b\u7121\u7dda\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3002<\/p>\n\n\n\n<p class=\"translation-block\">\u2022 <strong>802.11i<\/strong>: \u8a8d\u8a3c\u3068\u6697\u53f7\u5316\u3002<\/p>\n\n\n\n<p class=\"translation-block\">\u2022 <strong>802.11n<\/strong>: 2.4 GHz\u304a\u3088\u30735 GHz ISM\u5e2f\u57df\u306e\u30ad\u30e3\u30ea\u30a2\u3092\u4f7f\u7528\u3057\u305f\u7121\u7dda\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u3001\u6700\u5927600 Mbps\u306e\u30c7\u30fc\u30bf\u8ee2\u9001\u901f\u5ea6\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"translation-block\">\u2022 <strong>802.11ac<\/strong>: 6 GHz\u672a\u6e80\u306e\u30ad\u30e3\u30ea\u30a2\u3092\u4f7f\u7528\u3059\u308b\u7121\u7dda\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u3001\u30de\u30eb\u30c1\u30b9\u30c6\u30fc\u30b7\u30e7\u30f3\u64cd\u4f5c\u3067\u306f\u5c11\u306a\u304f\u3068\u30821 Gbps\u3001\u5358\u4e00\u30ea\u30f3\u30af\u3067\u306f500 Mbps\u306e\u30c7\u30fc\u30bf\u8ee2\u9001\u901f\u5ea6\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n\n\n<h2 class=\"wp-block-heading\" id=\"the-bottom-line\">\u7d50\u8ad6<\/h2>\n\n\n<p>WiFi\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u5b89\u5168\u306b\u4fdd\u3064\u3053\u3068\u306f\u3001\u7384\u95a2\u306e\u9375\u3092\u304b\u3051\u308b\u3053\u3068\u3068\u540c\u3058\u3067\u3059\u2014\u8ab0\u3067\u3082\u81ea\u7531\u306b\u5165\u3063\u3066\u3053\u308c\u308b\u72b6\u614b\u306b\u306f\u3057\u305f\u304f\u306a\u3044\u3067\u3059\u3088\u306d\uff1f\u304b\u3064\u3066Wired-Equivalent Privacy\uff08WEP\uff09\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4fdd\u8b77\u3059\u308b\u9078\u629e\u80a2\u3067\u3057\u305f\u304c\u3001\u73fe\u5728\u3067\u306f\u6642\u4ee3\u9045\u308c\u3067\u3042\u308a\u3001\u65e2\u77e5\u306e\u6b20\u9665\u304c\u3042\u308a\u307e\u3059\u3002Wi-Fi Protected Access\uff08WPA\uff09\u304a\u3088\u3073\u305d\u306e\u5f8c\u7d99\u3067\u3042\u308bWPA2\/WPAv2\u306f\u3001\u306f\u308b\u304b\u306b\u52b9\u679c\u7684\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3067\u3059\u3002\u3055\u307e\u3056\u307e\u306aWiFi\u901a\u4fe1\u898f\u683c\u306f\u3001\u7570\u306a\u308b\u30c7\u30fc\u30bf\u8ee2\u9001\u901f\u5ea6\u3084\u5468\u6ce2\u6570\u3092\u63d0\u4f9b\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u30cb\u30fc\u30ba\u306b\u5408\u3063\u305f\u3082\u306e\u3092\u9078\u3076\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u5bfe\u7b56\u3092\u8b1b\u3058\u308b\u3053\u3068\u3067\u3001\u30ef\u30a4\u30e4\u30ec\u30b9\u63a5\u7d9a\u306e\u5229\u4fbf\u6027\u3092\u640d\u306a\u3046\u3053\u3068\u306a\u304f\u3001WiFi\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u5b89\u5168\u306b\u4fdd\u3064\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>","protected":false},"excerpt":{"rendered":"<p>\u306f\u3058\u3081\u306b \u8fd1\u5e74\u3001\u4f4d\u7f6e\u60c5\u5831\u306e\u91cd\u8981\u6027\u306f\u307e\u3059\u307e\u3059\u9ad8\u307e\u3063\u3066\u3044\u308b\u3002\u30b0\u30fc\u30b0\u30eb\u30de\u30c3\u30d7\u306e\u3088\u3046\u306a\u30b5\u30fc\u30d3\u30b9\u306f\u3001\u30ca\u30d3\u30b2\u30fc\u30b7\u30e7\u30f3\u3092\u5bb9\u6613\u306b\u3057\u3001\u7279\u5b9a\u306e\u5730\u70b9\u3092\u898b\u3064\u3051\u308b\u3053\u3068\u3092\u53ef\u80fd\u306b\u3057\u305f\u3002 <a class=\"more-link\" href=\"https:\/\/securitybriefing.net\/ja\/%e3%83%86%e3%82%af%e3%83%8e%e3%83%ad%e3%82%b8%e3%83%bc\/%e3%83%a2%e3%83%90%e3%82%a4%e3%83%ab%e3%82%bb%e3%83%b3%e3%82%b7%e3%83%b3%e3%82%b0-wifi-%e5%b1%8b%e5%86%85%e3%83%ad%e3%83%bc%e3%82%ab%e3%83%a9%e3%82%a4%e3%82%bc%e3%83%bc%e3%82%b7%e3%83%a7%e3%83%b3\/\">\u7d9a\u304d\u3092\u8aad\u3080 <span class=\"screen-reader-text\">\u30e2\u30d0\u30a4\u30eb\u30bb\u30f3\u30b7\u30f3\u30b0WiFi\u5c4b\u5185\u30ed\u30fc\u30ab\u30e9\u30a4\u30bc\u30fc\u30b7\u30e7\u30f3<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":1486,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30],"tags":[],"class_list":["post-1484","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tech","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Mobile Sensing: WiFi Indoor Localization | Security Briefing<\/title>\n<meta name=\"description\" content=\"Keep your WiFi network secure with WEP, WPA, or WPA2. 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