{"id":476453,"date":"2023-08-09T07:29:55","date_gmt":"2023-08-09T07:29:55","guid":{"rendered":""},"modified":"2023-09-05T11:12:46","modified_gmt":"2023-09-05T11:12:46","slug":"covert-channel","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/jp\/wiki\/covert-channel\/","title":{"rendered":"\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb"},"content":{"rendered":"<p>\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u3068\u306f\u3001\u6b63\u5f53\u306a\u901a\u4fe1\u30c1\u30e3\u30cd\u30eb\u5185\u3067\u884c\u308f\u308c\u308b\u79d8\u5bc6\u307e\u305f\u306f\u96a0\u3055\u308c\u305f\u901a\u4fe1\u306e\u65b9\u6cd5\u3092\u6307\u3057\u307e\u3059\u3002\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u306e\u4e3b\u306a\u76ee\u7684\u306f\u3001\u7121\u8a31\u53ef\u306e\u5f53\u4e8b\u8005\u304b\u3089\u306e\u6ce8\u76ee\u3092\u96c6\u3081\u305f\u308a\u7591\u60d1\u3092\u5f15\u304d\u8d77\u3053\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u306a\u304f\u30012 \u3064\u306e\u7d44\u7e54\u9593\u3067\u60c5\u5831\u3092\u3084\u308a\u53d6\u308a\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u30c1\u30e3\u30cd\u30eb\u306f\u691c\u51fa\u3055\u308c\u306a\u3044\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u30b9\u30d1\u30a4\u6d3b\u52d5\u3001\u30c7\u30fc\u30bf\u6f0f\u6d29\u3001\u305d\u306e\u4ed6\u306e\u79d8\u5bc6\u6d3b\u52d5\u306b\u4e0d\u53ef\u6b20\u306a\u30c4\u30fc\u30eb\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30d7\u30ed\u30c8\u30b3\u30eb\u3001\u30d5\u30a1\u30a4\u30eb \u30b7\u30b9\u30c6\u30e0\u3001\u3055\u3089\u306b\u306f\u4e00\u898b\u7121\u5bb3\u306b\u898b\u3048\u308b\u30c7\u30fc\u30bf \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u5a92\u4f53\u3092\u901a\u3058\u3066\u52d5\u4f5c\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2>Covert Channel \u306e\u8d77\u6e90\u306e\u6b74\u53f2\u3068\u305d\u308c\u306b\u3064\u3044\u3066\u306e\u6700\u521d\u306e\u8a00\u53ca\u3002<\/h2>\n<p>\u79d8\u5bc6\u901a\u4fe1\u306e\u6982\u5ff5\u306f\u3001\u500b\u4eba\u304c\u30b9\u30c6\u30ac\u30ce\u30b0\u30e9\u30d5\u30a3\u30fc\u3092\u4f7f\u7528\u3057\u3066\u3001\u4e00\u898b\u7121\u5bb3\u306b\u898b\u3048\u308b\u30ad\u30e3\u30ea\u30a2\u5185\u306b\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u96a0\u3059\u521d\u671f\u306e\u5f62\u5f0f\u306e\u6697\u53f7\u306b\u307e\u3067\u9061\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u53e4\u4ee3\u6587\u660e\u306f\u3001\u76ee\u306b\u898b\u3048\u306a\u3044\u30a4\u30f3\u30af\u3084\u7d75\u753b\u306b\u96a0\u3055\u308c\u305f\u30e1\u30c3\u30bb\u30fc\u30b8\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u6280\u8853\u3092\u4f7f\u7528\u3057\u3066\u6a5f\u5bc6\u60c5\u5831\u3092\u79d8\u5bc6\u88cf\u306b\u4ea4\u63db\u3057\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n<p>\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u30b5\u30a4\u30a8\u30f3\u30b9\u306b\u304a\u3051\u308b\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u306b\u3064\u3044\u3066\u521d\u3081\u3066\u6b63\u5f0f\u306b\u8a00\u53ca\u3055\u308c\u305f\u306e\u306f\u30011970 \u5e74\u4ee3\u306b\u9061\u308a\u307e\u3059\u3002\u30d0\u30c8\u30e9\u30fc\u30fb\u30e9\u30f3\u30d7\u30bd\u30f3\u6c0f\u306f\u3001\u300c\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf \u30b7\u30b9\u30c6\u30e0\u306e\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u300d\u3068\u3044\u3046\u30bf\u30a4\u30c8\u30eb\u306e\u7814\u7a76\u8ad6\u6587\u306e\u4e2d\u3067\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf \u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u60c5\u5831\u306e\u6d41\u308c\u306e\u8003\u3048\u65b9\u3092\u7d39\u4ecb\u3057\u3001\u96a0\u3057\u30c1\u30e3\u30cd\u30eb\u306b\u3088\u3063\u3066\u3082\u305f\u3089\u3055\u308c\u308b\u6f5c\u5728\u7684\u306a\u30ea\u30b9\u30af\u3092\u5f37\u8abf\u3057\u307e\u3057\u305f\u3002<\/p>\n<h2>\u30b3\u30d0\u30fc\u30c8\u30c1\u30e3\u30cd\u30eb\u306e\u8a73\u7d30\u60c5\u5831\u3002\u30c8\u30d4\u30c3\u30af\u306e\u62e1\u5927 \u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u3002<\/h2>\n<p>\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7ba1\u7406\u8005\u3084\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30e1\u30ab\u30cb\u30ba\u30e0\u306e\u77e5\u8b58\u306a\u3057\u306b\u3001\u65e2\u5b58\u306e\u901a\u4fe1\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u3092\u60aa\u7528\u3057\u3066\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30c1\u30e3\u30cd\u30eb\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u3001\u30b9\u30c8\u30ec\u30fc\u30b8\u3001\u307e\u305f\u306f\u901a\u4fe1\u30ea\u30bd\u30fc\u30b9\u3092\u64cd\u4f5c\u3057\u3066\u3001\u79d8\u5bc6\u306e\u76ee\u7684\u3092\u9054\u6210\u3057\u307e\u3059\u3002\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u306e\u4e3b\u306a\u7279\u5fb4\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u79d8\u5bc6\u306e\u6027\u8cea:<\/strong> \u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u306f\u6c17\u3065\u304b\u308c\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u3092\u76ee\u7684\u3068\u3057\u3066\u304a\u308a\u3001\u7591\u3044\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u6b63\u5f53\u306a\u901a\u4fe1\u30d1\u30bf\u30fc\u30f3\u3092\u6a21\u5023\u3059\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u9650\u3089\u308c\u305f\u5e2f\u57df\u5e45:<\/strong> \u96a0\u853d\u30c1\u30e3\u30cd\u30eb\u306e\u6027\u8cea\u4e0a\u3001\u901a\u5e38\u3001\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u306e\u5e2f\u57df\u5e45\u306f\u9650\u3089\u308c\u3066\u304a\u308a\u3001\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u306e\u8ee2\u9001\u306b\u306f\u9069\u3055\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30bf\u30a4\u30df\u30f3\u30b0\u30d9\u30fc\u30b9\u307e\u305f\u306f\u30b9\u30c8\u30ec\u30fc\u30b8\u30d9\u30fc\u30b9:<\/strong> \u30b3\u30d0\u30fc\u30c8 \u30c1\u30e3\u30cd\u30eb\u306f\u3001\u9001\u4fe1\u6642\u306b\u9045\u5ef6\u3092\u4f7f\u7528\u3059\u308b\u304b\u30b9\u30c8\u30ec\u30fc\u30b8 \u30ea\u30bd\u30fc\u30b9\u3092\u64cd\u4f5c\u3059\u308b\u304b\u306b\u5fdc\u3058\u3066\u3001\u305d\u308c\u305e\u308c\u30bf\u30a4\u30df\u30f3\u30b0 \u30d9\u30fc\u30b9\u307e\u305f\u306f\u30b9\u30c8\u30ec\u30fc\u30b8 \u30d9\u30fc\u30b9\u306b\u5206\u985e\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u610f\u56f3\u3057\u306a\u3044\u5a92\u4f53:<\/strong> \u3053\u308c\u3089\u306f\u901a\u5e38\u3001\u5f53\u521d\u306f\u30c7\u30fc\u30bf\u8ee2\u9001\u7528\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u306a\u304b\u3063\u305f\u901a\u4fe1\u30d7\u30ed\u30c8\u30b3\u30eb\u3084\u30b7\u30b9\u30c6\u30e0 \u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u60aa\u7528\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>Covert \u30c1\u30e3\u30cd\u30eb\u306e\u5185\u90e8\u69cb\u9020\u3002\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u306e\u4ed5\u7d44\u307f\u3002<\/h2>\n<p>\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u3067\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u79d8\u5bc6\u6280\u8853\u3092\u5229\u7528\u3057\u3066\u3001\u96a0\u3055\u308c\u305f\u901a\u4fe1\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002\u4e00\u822c\u7684\u306a\u30b3\u30d0\u30fc\u30c8 \u30c1\u30e3\u30cd\u30eb\u624b\u6cd5\u306b\u306f\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u30d1\u30c7\u30a3\u30f3\u30b0:<\/strong> \u30bf\u30a4\u30df\u30f3\u30b0\u30d9\u30fc\u30b9\u306e\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u3067\u306f\u3001\u9001\u4fe1\u8005\u306f\u6b63\u5f53\u306a\u30d1\u30b1\u30c3\u30c8\u9593\u306b\u4eba\u70ba\u7684\u306a\u9045\u5ef6 (\u30d1\u30c7\u30a3\u30f3\u30b0) \u3092\u8ffd\u52a0\u3057\u3066\u3001\u96a0\u3055\u308c\u305f\u60c5\u5831\u3092\u7b26\u53f7\u5316\u3057\u307e\u3059\u3002\u53d7\u4fe1\u6a5f\u306f\u9045\u5ef6\u3092\u89e3\u91c8\u3057\u3066\u3001\u96a0\u853d\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3092\u62bd\u51fa\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30c7\u30fc\u30bf\u64cd\u4f5c\uff1a<\/strong> \u30b9\u30c8\u30ec\u30fc\u30b8\u30d9\u30fc\u30b9\u306e\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u306f\u3001\u30e1\u30e2\u30ea\u3084\u30c7\u30a3\u30b9\u30af\u9818\u57df\u306a\u3069\u306e\u30b9\u30c8\u30ec\u30fc\u30b8 \u30ea\u30bd\u30fc\u30b9\u3092\u64cd\u4f5c\u3057\u3066\u3001\u30c7\u30fc\u30bf\u3092\u30a8\u30f3\u30b3\u30fc\u30c9\u3057\u3066\u9001\u4fe1\u3057\u307e\u3059\u3002\u3053\u306e\u624b\u6cd5\u3067\u306f\u3001\u672a\u4f7f\u7528\u307e\u305f\u306f\u4e00\u898b\u7121\u95a2\u4fc2\u306a\u4fdd\u5b58\u5834\u6240\u3092\u5229\u7528\u3057\u3066\u60c5\u5831\u3092\u96a0\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30d7\u30ed\u30c8\u30b3\u30eb\u64cd\u4f5c:<\/strong> \u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u69cb\u9020\u3092\u5909\u66f4\u3057\u3066\u3001\u901a\u5e38\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306b\u30c7\u30fc\u30bf\u3092\u633f\u5165\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u6697\u53f7\u5316\u901a\u4fe1:<\/strong> \u6697\u53f7\u5316\u3055\u308c\u305f\u901a\u4fe1\u306f\u3001\u6697\u53f7\u5316\u3055\u308c\u305f\u30c7\u30fc\u30bf\u81ea\u4f53\u304c\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u3068\u306a\u308b\u3001\u96a0\u3055\u308c\u305f\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u96a0\u308c\u84d1\u3068\u3057\u3066\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>Covert \u30c1\u30e3\u30cd\u30eb\u306e\u4e3b\u8981\u306a\u6a5f\u80fd\u306e\u5206\u6790\u3002<\/h2>\n<p>\u30b3\u30d0\u30fc\u30c8 \u30c1\u30e3\u30cd\u30eb\u306e\u4e3b\u306a\u7279\u5fb4\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u30b9\u30c6\u30eb\u30b9\u6027:<\/strong> \u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u306f\u3001\u901a\u5e38\u306e\u901a\u4fe1\u306b\u6eb6\u3051\u8fbc\u3080\u3053\u3068\u3067\u79d8\u5bc6\u3092\u7dad\u6301\u3057\u3001\u691c\u51fa\u3092\u56de\u907f\u3057\u3088\u3046\u3068\u52aa\u3081\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u4f4e\u5e2f\u57df\u5e45:<\/strong> \u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u306f\u305d\u306e\u96a0\u308c\u305f\u6027\u8cea\u306e\u305f\u3081\u3001\u591a\u304f\u306e\u5834\u5408\u3001\u516c\u7136\u306e\u901a\u4fe1\u30c1\u30e3\u30cd\u30eb\u3068\u6bd4\u8f03\u3057\u3066\u5e2f\u57df\u5e45\u304c\u5236\u9650\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u8907\u96d1\uff1a<\/strong> \u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u306e\u4f5c\u6210\u3068\u7dad\u6301\u306f\u6280\u8853\u7684\u306b\u56f0\u96e3\u306a\u5834\u5408\u304c\u3042\u308a\u3001\u9ad8\u5ea6\u306a\u6280\u8853\u3068\u5c02\u9580\u77e5\u8b58\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30ec\u30a4\u30c6\u30f3\u30b7:<\/strong> \u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u3067\u306f\u3001\u901a\u4fe1\u307e\u305f\u306f\u30b9\u30c8\u30ec\u30fc\u30b8 \u30ea\u30bd\u30fc\u30b9\u3092\u64cd\u4f5c\u3059\u308b\u305f\u3081\u3001\u8ffd\u52a0\u306e\u9045\u5ef6\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af:<\/strong> \u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u306f\u3001\u60aa\u610f\u306e\u3042\u308b\u653b\u6483\u8005\u306b\u3088\u3063\u3066\u60aa\u7528\u3055\u308c\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3092\u56de\u907f\u3057\u3001\u5b89\u5168\u306a\u74b0\u5883\u304b\u3089\u6a5f\u5bc6\u30c7\u30fc\u30bf\u3092\u629c\u304d\u51fa\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>Covert \u30c1\u30e3\u30cd\u30eb\u306e\u30b5\u30d6\u30bf\u30a4\u30d7\u3092\u66f8\u304d\u8fbc\u3080<\/h2>\n<p>\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u306b\u306f\u3055\u307e\u3056\u307e\u306a\u5f62\u5f0f\u304c\u3042\u308a\u3001\u305d\u308c\u305e\u308c\u304c\u7570\u306a\u308b\u6280\u8853\u3092\u5229\u7528\u3057\u3066\u96a0\u308c\u305f\u901a\u4fe1\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u4e00\u822c\u7684\u306a\u7a2e\u985e\u306e\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u3092\u3044\u304f\u3064\u304b\u793a\u3057\u307e\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u30bf\u30a4\u30d7<\/th>\n<th>\u8aac\u660e<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30bf\u30a4\u30df\u30f3\u30b0\u30d9\u30fc\u30b9<\/td>\n<td>\u30bf\u30a4\u30df\u30f3\u30b0\u306e\u5909\u52d5\u3084\u30d1\u30b1\u30c3\u30c8\u306e\u9045\u5ef6\u306b\u3088\u308a\u30c7\u30fc\u30bf\u3092\u96a0\u853d\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u30b9\u30c8\u30ec\u30fc\u30b8\u30d9\u30fc\u30b9<\/td>\n<td>\u672a\u4f7f\u7528\u307e\u305f\u306f\u4e00\u898b\u7121\u95a2\u4fc2\u306a\u4fdd\u7ba1\u5834\u6240\u3092\u5229\u7528\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u30d7\u30ed\u30c8\u30b3\u30eb\u30d9\u30fc\u30b9<\/td>\n<td>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u64cd\u4f5c\u3057\u3066\u60c5\u5831\u3092\u96a0\u853d\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u30c7\u30fc\u30bf\u5727\u7e2e<\/td>\n<td>\u5727\u7e2e\u30d7\u30ed\u30bb\u30b9\u3067\u30c7\u30fc\u30bf\u3092\u96a0\u853d\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u6697\u53f7\u5316\u3055\u308c\u305f\u30c1\u30e3\u30cd\u30eb<\/td>\n<td>\u6697\u53f7\u5316\u901a\u4fe1\u5185\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u975e\u8868\u793a\u306b\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u7121\u7dda\u5468\u6ce2\u6570<\/td>\n<td>RF \u4fe1\u53f7\u3092\u4f7f\u7528\u3057\u3066\u79d8\u5bc6\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u97f3\u97ff<\/td>\n<td>\u97f3\u58f0\u4fe1\u53f7\u5185\u306e\u60c5\u5831\u3092\u96a0\u853d\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Covert Channel\u306e\u5229\u7528\u65b9\u6cd5\u3068\u5229\u7528\u306b\u4f34\u3046\u554f\u984c\u70b9\u3068\u305d\u306e\u89e3\u6c7a\u7b56\u3002<\/h2>\n<h3>\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u306e\u5229\u7528:<\/h3>\n<ol>\n<li>\n<p><strong>\u30b9\u30d1\u30a4\u6d3b\u52d5\u3068\u60c5\u5831\u53ce\u96c6:<\/strong> \u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u306f\u3001\u8adc\u5831\u6a5f\u95a2\u306b\u3088\u3063\u3066\u691c\u51fa\u3055\u308c\u308b\u3053\u3068\u306a\u304f\u6a5f\u5bc6\u60c5\u5831\u3092\u4ea4\u63db\u3059\u308b\u305f\u3081\u306b\u3088\u304f\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30c7\u30fc\u30bf\u306e\u5f15\u304d\u51fa\u3057:<\/strong> \u60aa\u610f\u306e\u3042\u308b\u653b\u6483\u8005\u306f\u3001\u79d8\u5bc6\u306e\u30c1\u30e3\u30cd\u30eb\u3092\u60aa\u7528\u3057\u3066\u3001\u5b89\u5168\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u3089\u8cb4\u91cd\u306a\u30c7\u30fc\u30bf\u3092\u76d7\u307f\u3001\u9001\u4fe1\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5236\u9650\u3055\u308c\u305f\u74b0\u5883\u3067\u306e\u901a\u4fe1:<\/strong> \u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u901a\u5e38\u306e\u901a\u4fe1\u304c\u76e3\u8996\u307e\u305f\u306f\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u5236\u9650\u3055\u308c\u305f\u74b0\u5883\u3067\u306e\u901a\u4fe1\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h3>\u554f\u984c\u3068\u89e3\u6c7a\u7b56:<\/h3>\n<ol>\n<li>\n<p><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af:<\/strong> \u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u306f\u5f93\u6765\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u56de\u907f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u91cd\u5927\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30ea\u30b9\u30af\u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3059\u3002\u9ad8\u5ea6\u306a\u4fb5\u5165\u691c\u77e5\u30b7\u30b9\u30c6\u30e0\u3068\u7570\u5e38\u691c\u77e5\u3092\u5b9f\u88c5\u3059\u308b\u3068\u3001\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u3092\u7279\u5b9a\u3057\u3066\u8efd\u6e1b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u691c\u51fa\u306e\u8ab2\u984c:<\/strong> \u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u306f\u30b9\u30c6\u30eb\u30b9\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u691c\u51fa\u304c\u56f0\u96e3\u306a\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u5b9a\u671f\u7684\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u76e3\u67fb\u3068\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u76e3\u8996\u306f\u3001\u79d8\u5bc6\u901a\u4fe1\u306e\u767a\u898b\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5e2f\u57df\u5e45\u306e\u5236\u9650:<\/strong> \u591a\u304f\u306e\u5834\u5408\u3001\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u306e\u5e2f\u57df\u5e45\u306f\u9650\u3089\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u3092\u8ee2\u9001\u3059\u308b\u306b\u306f\u975e\u52b9\u7387\u7684\u3067\u3059\u3002\u3053\u308c\u306b\u5bfe\u6297\u3059\u308b\u305f\u3081\u306b\u3001\u7d44\u7e54\u306f\u30c7\u30fc\u30bf\u640d\u5931\u9632\u6b62\u6226\u7565\u3092\u5b9f\u65bd\u3057\u3001\u9001\u4fe1\u3067\u304d\u308b\u30c7\u30fc\u30bf\u306e\u7a2e\u985e\u3092\u5236\u9650\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u4e3b\u306a\u7279\u5fb4\u3084\u305d\u306e\u4ed6\u306e\u985e\u4f3c\u7528\u8a9e\u3068\u306e\u6bd4\u8f03\u3092\u8868\u3084\u30ea\u30b9\u30c8\u306e\u5f62\u5f0f\u3067\u793a\u3057\u307e\u3059\u3002<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb vs \u30b9\u30c6\u30ac\u30ce\u30b0\u30e9\u30d5\u30a3\u30fc<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u79d8\u5bc6\u30c1\u30e3\u30f3\u30cd\u30eb<\/td>\n<\/tr>\n<tr>\n<td>\u6b63\u898f\u306e\u901a\u4fe1\u30c1\u30e3\u30cd\u30eb\u3067\u30c7\u30fc\u30bf\u3092\u96a0\u853d\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u30ea\u30bd\u30fc\u30b9\u3092\u96a0\u308c\u305f\u901a\u4fe1\u306b\u5229\u7528\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u3055\u307e\u3056\u307e\u306a\u5a92\u4f53\uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3001\u30b9\u30c8\u30ec\u30fc\u30b8\u306a\u3069\uff09\u3092\u4ecb\u3057\u3066\u52d5\u4f5c\u3067\u304d\u307e\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Covert \u30c1\u30e3\u30cd\u30eb\u306b\u95a2\u9023\u3059\u308b\u5c06\u6765\u306e\u5c55\u671b\u3068\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u3002<\/h2>\n<p>\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u304c\u9032\u6b69\u3059\u308b\u306b\u3064\u308c\u3066\u3001\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u306f\u3055\u3089\u306b\u6d17\u7df4\u3055\u308c\u3001\u691c\u51fa\u304c\u56f0\u96e3\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u6f5c\u5728\u7684\u306a\u958b\u767a\u3068\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u306b\u306f\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>AI \u30d9\u30fc\u30b9\u306e\u56de\u907f:<\/strong> \u60aa\u610f\u306e\u3042\u308b\u653b\u6483\u8005\u306f\u3001\u4eba\u5de5\u77e5\u80fd\u3068\u6a5f\u68b0\u5b66\u7fd2\u3092\u6d3b\u7528\u3057\u3066\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30b7\u30b9\u30c6\u30e0\u306b\u3088\u308b\u691c\u51fa\u3092\u9069\u5fdc\u3057\u3066\u56de\u907f\u3059\u308b\u79d8\u5bc6\u306e\u30c1\u30e3\u30cd\u30eb\u3092\u8a2d\u8a08\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u91cf\u5b50\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb:<\/strong> \u91cf\u5b50\u901a\u4fe1\u306e\u53f0\u982d\u306b\u3088\u308a\u3001\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u306f\u91cf\u5b50\u306e\u3082\u3064\u308c\u3068\u91cd\u306d\u5408\u308f\u305b\u3092\u5229\u7528\u3057\u3066\u3001\u5b89\u5168\u6027\u304c\u9ad8\u304f\u691c\u51fa\u4e0d\u53ef\u80fd\u306a\u901a\u4fe1\u3092\u5b9f\u73fe\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30d6\u30ed\u30c3\u30af\u30c1\u30a7\u30fc\u30f3\u30d9\u30fc\u30b9\u306e\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb:<\/strong> \u5c06\u6765\u306e\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u3067\u306f\u3001\u5206\u6563\u578b\u3067\u5b89\u5168\u306a\u901a\u4fe1\u306e\u305f\u3081\u306b\u30d6\u30ed\u30c3\u30af\u30c1\u30a7\u30fc\u30f3\u6280\u8853\u3092\u6d3b\u7528\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u3092\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u3001\u307e\u305f\u306f\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u3092\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u306b\u95a2\u9023\u4ed8\u3051\u308b\u65b9\u6cd5\u3002<\/h2>\n<p>\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u96a0\u308c\u305f\u901a\u4fe1\u304c\u884c\u308f\u308c\u308b\u4ef2\u4ecb\u8005\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u3067\u3001\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u3092\u4fc3\u9032\u3059\u308b\u4e0a\u3067\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u3092\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u306b\u95a2\u9023\u4ed8\u3051\u308b\u65b9\u6cd5\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u533f\u540d\uff1a<\/strong> \u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u5143\u306e\u901a\u4fe1\u30bd\u30fc\u30b9\u3092\u96a0\u3059\u305f\u3081\u3001\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u3092\u5143\u306e\u30bd\u30fc\u30b9\u307e\u3067\u8ffd\u8de1\u3059\u308b\u3053\u3068\u304c\u56f0\u96e3\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30c7\u30fc\u30bf\u306e\u30ab\u30d7\u30bb\u30eb\u5316:<\/strong> \u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u6b63\u898f\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u5185\u306b\u79d8\u5bc6\u30c7\u30fc\u30bf\u3092\u30ab\u30d7\u30bb\u30eb\u5316\u3057\u3001\u901a\u5e38\u306e\u901a\u4fe1\u306e\u3088\u3046\u306b\u898b\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u30d0\u30a4\u30d1\u30b9\u3059\u308b:<\/strong> \u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30d5\u30a3\u30eb\u30bf\u30fc\u3084\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3092\u30d0\u30a4\u30d1\u30b9\u3067\u304d\u308b\u305f\u3081\u3001\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u304c\u969c\u5bb3\u306a\u304f\u6a5f\u80fd\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h2>\u95a2\u9023\u30ea\u30f3\u30af<\/h2>\n<p>\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u3068\u95a2\u9023\u30c8\u30d4\u30c3\u30af\u306e\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001\u6b21\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<ol>\n<li>\n<p><a href=\"https:\/\/homes.cs.washington.edu\/~levy\/courses\/sp17\/csci298\/reading\/compsec\/lampson.pdf\" target=\"_new\" rel=\"noopener nofollow\">\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30b7\u30b9\u30c6\u30e0\u306e\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb \u2013 \u30d0\u30c8\u30e9\u30fc\u30fb\u30e9\u30f3\u30d7\u30bd\u30f3\u306b\u3088\u308b\u7814\u7a76\u8ad6\u6587<\/a><\/p>\n<\/li>\n<li>\n<p><a href=\"https:\/\/www.sans.org\/reading-room\/whitepapers\/detection\/introduction-steganography-33814\" target=\"_new\" rel=\"noopener nofollow\">\u30b9\u30c6\u30ac\u30ce\u30b0\u30e9\u30d5\u30a3\u30fc\u306e\u6982\u8981 \u2013 SANS Institute<\/a><\/p>\n<\/li>\n<li>\n<p><a href=\"https:\/\/www.usenix.org\/conference\/usenixsecurity19\/presentation\/krauss\" target=\"_new\" rel=\"noopener nofollow\">\u6a5f\u68b0\u5b66\u7fd2\u306b\u3088\u308b\u79d8\u5bc6\u30c1\u30e3\u30cd\u30eb\u306e\u691c\u51fa \u2013 USENIX<\/a><\/p>\n<\/li>\n<li>\n<p><a href=\"https:\/\/plato.stanford.edu\/entries\/qt-quantcomp\/#2.5\" target=\"_new\" rel=\"noopener nofollow\">\u91cf\u5b50\u901a\u4fe1\u3068\u91cf\u5b50\u9375\u914d\u5e03 \u2013 \u30b9\u30bf\u30f3\u30d5\u30a9\u30fc\u30c9\u54f2\u5b66\u767e\u79d1\u4e8b\u5178<\/a><\/p>\n<\/li>\n<li>\n<p><a href=\"https:\/\/www.investopedia.com\/terms\/b\/blockchain.asp\" target=\"_new\" rel=\"noopener nofollow\">\u30d6\u30ed\u30c3\u30af\u30c1\u30a7\u30fc\u30f3\u6280\u8853\u306e\u8aac\u660e \u2013 Investopedia<\/a><\/p>\n<\/li>\n<\/ol>","protected":false},"featured_media":476454,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476453","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Covert Channel: Concealed Communication through Proxy Servers<\/mark>","faq_items":[{"question":"What is a covert channel?","answer":"<p>A covert channel is a method of secret or hidden communication that operates within an otherwise legitimate communication channel. It aims to pass information between two entities without raising suspicion from unauthorized parties.<\/p>"},{"question":"How did covert channels originate?","answer":"<p>The concept of covert communication can be traced back to early forms of cryptography, such as steganography, where messages were concealed within seemingly harmless carriers. The first formal mention of covert channels in computer science was in a research paper by Butler Lampson in the 1970s.<\/p>"},{"question":"What are the key features of covert channels?","answer":"<p>The key features of covert channels include stealthiness, limited bandwidth, complexity, use of timing or storage manipulation, and exploitation of unintended communication mediums.<\/p>"},{"question":"What are the different types of covert channels?","answer":"<p>Covert channels can be classified as timing-based, storage-based, protocol-based, data compression, encrypted channels, radio frequency, and acoustic channels, each utilizing distinct techniques for hidden communication.<\/p>"},{"question":"How do covert channels work?","answer":"<p>Covert channels utilize various techniques like traffic padding, data manipulation, protocol manipulation, and encrypted communication to achieve concealed communication.<\/p>"},{"question":"How are covert channels used, and what problems do they pose?","answer":"<p>Covert channels find use in espionage, data exfiltration, and communication in restricted environments. However, they also pose security risks and detection challenges. Implementing intrusion detection systems and data loss prevention strategies can help mitigate these issues.<\/p>"},{"question":"What are the comparisons between covert channels and steganography?","answer":"<p>Covert channels conceal data in legitimate communication channels, while steganography hides data within another carrier, often digital media like images or audio.<\/p>"},{"question":"What are the future perspectives and technologies related to covert channels?","answer":"<p>The future may see AI-based evasion, quantum covert channels leveraging quantum communication, and blockchain-based covert channels for decentralized and secure communication.<\/p>"},{"question":"How do proxy servers relate to covert channels?","answer":"<p>Proxy servers can facilitate covert channels by providing anonymity, data encapsulation, and bypassing filters, enabling hidden communication.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/476453","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\/476453\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media\/476454"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media?parent=476453"}],"curies":[{"name":"\u3046\u30fc\u3093","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}