{"id":11178,"date":"2014-02-14T01:40:37","date_gmt":"2014-02-14T01:40:37","guid":{"rendered":"http:\/\/articles.softonic.jp\/?p=11178"},"modified":"2024-08-26T21:29:58","modified_gmt":"2024-08-26T12:29:58","slug":"encryption","status":"publish","type":"post","link":"https:\/\/cms-articles.softonic.io\/jp\/encryption\/","title":{"rendered":"\u6697\u53f7\u5316\u3063\u3066\u4f55\uff1f"},"content":{"rendered":"<p>\u6697\u53f7\u5316\u3068\u306f\u3001\u60c5\u5831\u304c\u4ed6\u8005\u304b\u3089\u8aad\u307f\u53d6\u3089\u308c\u306a\u3044\u3088\u3046\u3001\u60c5\u5831\u3092\u5909\u63db\u3057\u3066\u4fdd\u8b77\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u6697\u53f7\u5316\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3067\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u8a8d\u8b58\u3067\u304d\u306a\u3044\u72b6\u614b\u306b\u5909\u66f4\u3055\u308c\u3001\u8aad\u89e3\u4e0d\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002\u3067\u3059\u304c\u3001\u60c5\u5831\u306f\u305d\u306e\u307e\u307e\u5b58\u5728\u3057\u3001\u5f8c\u7a0b\u30c7\u30fc\u30bf\u306e\u518d\u53d6\u5f97\u306f\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11198\" title=\"320px-ROT13-es\" src=\"https:\/\/articles-img.sftcdn.net\/sft\/articles\/auto-mapping-folder\/sites\/6\/2014\/02\/320px-ROT13-es.png\" alt=\"\" width=\"320\" height=\"201\" srcset=\"https:\/\/articles-img.sftcdn.net\/auto-mapping-folder\/sites\/6\/2014\/02\/320px-ROT13-es.png 320w, https:\/\/articles-img.sftcdn.net\/auto-mapping-folder\/sites\/6\/2014\/02\/320px-ROT13-es-268x168.png 268w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" 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loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11298\" title=\"security_steganography-568x187\" src=\"https:\/\/articles-img.sftcdn.net\/sft\/articles\/auto-mapping-folder\/sites\/6\/2014\/02\/security_steganography-568x187.jpg\" alt=\"\" width=\"568\" height=\"187\" srcset=\"https:\/\/articles-img.sftcdn.net\/auto-mapping-folder\/sites\/6\/2014\/02\/security_steganography-568x187.jpg 568w, https:\/\/articles-img.sftcdn.net\/auto-mapping-folder\/sites\/6\/2014\/02\/security_steganography-568x187-268x88.jpg 268w\" sizes=\"auto, (max-width: 568px) 100vw, 568px\" 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src=\"https:\/\/articles-img.sftcdn.net\/sft\/articles\/auto-mapping-folder\/sites\/6\/2014\/02\/SNAG-0014.png\" alt=\"\" width=\"501\" height=\"232\" srcset=\"https:\/\/articles-img.sftcdn.net\/auto-mapping-folder\/sites\/6\/2014\/02\/SNAG-0014.png 501w, https:\/\/articles-img.sftcdn.net\/auto-mapping-folder\/sites\/6\/2014\/02\/SNAG-0014-268x124.png 268w\" sizes=\"auto, (max-width: 501px) 100vw, 501px\" \/><\/p>\n<p>\u6697\u53f7\u5316\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u3001\u6ce8\u76ee\u3092\u4e0d\u5fc5\u8981\u306b\u96c6\u3081\u3066\u3057\u307e\u3046\u3053\u3068\u304c\u3042\u308b\u305f\u3081\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u96a0\u3059\u305f\u3081\u306b\u7a2e\u3005\u306e\u6697\u53f7\u6cd5\u6280\u8853\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u7528\u3059\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><strong>\u6697\u53f7\u5316\u3068\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0: \u76f8\u6027\u306e\u3044\u3044\u7d44\u307f\u5408\u308f\u305b<\/strong><\/p>\n<p>\u6697\u53f7\u5316\u6280\u6cd5\u306f\u3001\u91cd\u8981\u60c5\u5831\u3092\u6226\u7565\u7684\u306b\u4f1d\u3048\u308b\u305f\u3081\u306b\u53e4\u304f\u304b\u3089\u4f7f\u7528\u3055\u308c\u3066\u304d\u3066\u3044\u307e\u3059\u3002\u521d\u671f\u306e\u6697\u53f7\u5316\u3067\u306f\u3001\u68d2\u306e\u5468\u308a\u306b\u6587\u66f8\u3092\u5dfb\u304d\u4ed8\u3051\u3001\u6587\u5b57\u3092\u4e26\u3073\u66ff\u3048\u308b\u3068\u3044\u3063\u305f\u30b7\u30f3\u30d7\u30eb\u306a\u6280\u8853\u304c\u4f7f\u308f\u308c\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11278\" title=\"scytale\" src=\"https:\/\/articles-img.sftcdn.net\/sft\/articles\/auto-mapping-folder\/sites\/6\/2014\/02\/scytale.png\" alt=\"\" width=\"550\" height=\"314\" srcset=\"https:\/\/articles-img.sftcdn.net\/auto-mapping-folder\/sites\/6\/2014\/02\/scytale.png 550w, https:\/\/articles-img.sftcdn.net\/auto-mapping-folder\/sites\/6\/2014\/02\/scytale-268x153.png 268w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/p>\n<p>\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u6697\u53f7\u5316\u306b\u4f7f\u7528\u3055\u308c\u305f\u30ed\u30fc\u30de\u6642\u4ee3\u306e\u5dfb\u7269\uff08\u30a4\u30e1\u30fc\u30b8\uff09<\/p>\n<p>\u7b2c\u4e8c\u6b21\u4e16\u754c\u5927\u6226\u4e2d\u306b\u306f\u3001\u30c9\u30a4\u30c4\u304c\u9577\u5e74\u306b\u308f\u305f\u3063\u3066\u547d\u4ee4\u306e\u4f1d\u9054\u306b\u4f7f\u7528\u3057\u305f\u30a8\u30cb\u30b0\u30de\u6a5f\u306e\u3088\u3046\u306a\u8907\u96d1\u306a\u6a5f\u68b0\u88c5\u7f6e\u304c\u4f7f\u7528\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11238\" title=\"enigma\" src=\"https:\/\/articles-img.sftcdn.net\/sft\/articles\/auto-mapping-folder\/sites\/6\/2014\/02\/enigma.png\" alt=\"\" width=\"550\" height=\"335\" srcset=\"https:\/\/articles-img.sftcdn.net\/auto-mapping-folder\/sites\/6\/2014\/02\/enigma.png 550w, https:\/\/articles-img.sftcdn.net\/auto-mapping-folder\/sites\/6\/2014\/02\/enigma-268x163.png 268w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/p>\n<p>\u30a8\u30cb\u30b0\u30de\u6a5f\u30ed\u30fc\u30bf\u30fc\u306e\u62e1\u5927\u5199\u771f<\/p>\n<p>\u7b2c\u4e8c\u6b21\u4e16\u754c\u5927\u6226\u4e2d\u3001\u3088\u308a\u512a\u308c\u305f\u89e3\u8aad\u6280\u8853\u306e\u8981\u6c42\u304c\u9ad8\u307e\u308a\u3001\u6697\u53f7\u89e3\u8aad\u8005\u304c\u4ee5\u524d\u4f7f\u7528\u3057\u3066\u3044\u305f\u6a5f\u68b0\u7684\u306a\u8a08\u7b97\u6a5f\u3088\u308a\u3082\u3055\u3089\u306b\u6027\u80fd\u304c\u512a\u308c\u305f\u3001\u521d\u671f\u3068\u306a\u308b\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u3084\u6a5f\u68b0\u306e\u958b\u767a\u304c\u9032\u307f\u307e\u3057\u305f\u3002<\/p>\n<p><strong>\u6697\u53f7\u30bd\u30d5\u30c8<\/strong><\/p>\n<p>\u6697\u53f7\u5316\u306f\u73fe\u5728\u3001\u79d8\u5bc6\u3092\u5b88\u308b\u5fc5\u8981\u306e\u3042\u308b\u3055\u307e\u3056\u307e\u306a\u72b6\u6cc1\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u77e5\u3089\u306a\u3044\u9593\u306b\u6697\u53f7\u5316\u3092\u884c\u3063\u3066\u3044\u308b\u3053\u3068\u3082\u5c11\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u6697\u53f7\u6cd5\u6280\u8853\u306f\u3055\u307e\u3056\u307e\u306a\u5834\u9762\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>-Web 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\u7a2e\u985e\u306b\u5206\u985e\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>-\u6a19\u6e96\u7684\u306a\u6697\u53f7\u5316<\/p>\n<p>-\u5bfe\u79f0\u5316\u6697\u53f7\u307e\u305f\u306f\u79d8\u5bc6\u9375\uff08\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30ad\u30fc\uff09<\/p>\n<p>-\u975e\u5bfe\u79f0\u5316\u6697\u53f7\u307e\u305f\u306f\u516c\u958b\u9375\uff08\u30d1\u30d6\u30ea\u30c3\u30af\u30ad\u30fc\uff09<\/p>\n<p>\u6a19\u6e96\u7684\u306a\u6697\u53f7\u5316\u306f\u304a\u304a\u3080\u306d\u3001\u30a2\u30eb\u30d5\u30a1\u30d9\u30c3\u30c8\u3092\u8907\u96d1\u306b\u4e26\u3079\u66ff\u3048\u305f\u65b9\u5f0f\u3067\u884c\u308f\u308c\u307e\u3059\u3002\u3002\u3053\u308c\u306f\u30b3\u30b9\u30c8\u304c\u304b\u304b\u3089\u305a\u306b\u6e08\u307f\u307e\u3059\u304c\u3001\u5468\u6ce2\u6570\u89e3\u6790\u306e\u3088\u3046\u306a\u653b\u6483\u306b\u5bfe\u3057\u3066\u8106\u5f31\u3067\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11248\" title=\"goldbug\" src=\"https:\/\/articles-img.sftcdn.net\/sft\/articles\/auto-mapping-folder\/sites\/6\/2014\/02\/goldbug.jpg\" alt=\"\" width=\"299\" height=\"99\" srcset=\"https:\/\/articles-img.sftcdn.net\/auto-mapping-folder\/sites\/6\/2014\/02\/goldbug.jpg 299w, https:\/\/articles-img.sftcdn.net\/auto-mapping-folder\/sites\/6\/2014\/02\/goldbug-268x88.jpg 268w\" sizes=\"auto, (max-width: 299px) 100vw, 299px\" \/><\/p>\n<p>\u9ec4\u91d1\u866b\uff08The Gold-Bug\uff09\u306e\u7269\u8a9e\u306b\u51fa\u3066\u304f\u308b\u79d8\u5bc6\u306e\u30e1\u30c3\u30bb\u30fc\u30b8<\/p>\n<p>\u5bfe\u79f0\u6697\u53f7\u5316\u306f\u3001\u540c\u3058\u9375\u3092\u4f7f\u7528\u3057\u3066\u6697\u53f7\u5316\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u6697\u53f7\u5316\u304a\u3088\u3073\u89e3\u8aad\u3057\u307e\u3059\u3002\u3053\u306e\u65b9\u6cd5\u306f1976 \u5e74\u307e\u3067\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u74b0\u5883\u3067\u30c7\u30fc\u30bf\u3092\u4fdd\u8b77\u3059\u308b\u552f\u4e00\u306e\u6697\u53f7\u5316\u65b9\u6cd5\u3067\u3057\u305f\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11298\" title=\"security_steganography-568x187\" src=\"https:\/\/articles-img.sftcdn.net\/sft\/articles\/auto-mapping-folder\/sites\/6\/2014\/02\/security_steganography-568x187.jpg\" alt=\"\" width=\"568\" height=\"187\" srcset=\"https:\/\/articles-img.sftcdn.net\/auto-mapping-folder\/sites\/6\/2014\/02\/security_steganography-568x187.jpg 568w, https:\/\/articles-img.sftcdn.net\/auto-mapping-folder\/sites\/6\/2014\/02\/security_steganography-568x187-268x88.jpg 268w\" sizes=\"auto, (max-width: 568px) 100vw, 568px\" \/><\/p>\n<p>\u30b9\u30c6\u30ac\u30ce\u30b0\u30e9\u30d5\u30a3\u30fc\u306f\u3001\u307b\u304b\u306e\u60c5\u5831\u306e\u4e2d\u306b\u60c5\u5831\u3092\u96a0\u3059\u624b\u6cd5\u3067\u3059<\/p>\n<p>\u9001\u4fe1\u8005\u304a\u3088\u3073\u53d7\u4fe1\u8005\u9593\u3067\u79d8\u5bc6\u9375\u3092\u5171\u6709\u3059\u308b\u3068\u3044\u3046\u8106\u5f31\u6027\u306e\u554f\u984c\u306f\u3001\u975e\u5bfe\u79f0\u6697\u53f7\u5316\u3067\u306e\u307f\u89e3\u6c7a\u3055\u308c\u307e\u3057\u305f\u304c\u3001\u5bfe\u79f0\u6697\u53f7\u5316\u306f\u3001\u5f15\u304d\u7d9a\u304d\u5e83\u7bc4\u56f2\u3067\u4f7f\u7528\u3055\u308c\u8a55\u5224\u3082\u9ad8\u3044\u624b\u6cd5\u3067\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u79d8\u5bc6\u9375\u3092\u5171\u6709\u3059\u308b\u3068\u3044\u3046\u554f\u984c\u306f\u3001\u975e\u5bfe\u79f0\u6697\u53f7\u5316\u306b\u3088\u3063\u3066\u89e3\u6c7a\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u308c\u306f\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u516c\u958b\u30ad\u30fc\u3067\u6697\u53f7\u5316\u3057\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u89e3\u8aad\u306b\u306f\u3001\u6307\u5b9a\u53d7\u4fe1\u8005\u306e\u307f\u304c\u6301\u3064\u79d8\u5bc6\u9375\uff08\u7406\u8ad6\u4e0a\uff09\u3092\u7528\u3044\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u89e3\u6c7a\u3057\u307e\u3057\u305f\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11288\" title=\"security_asymmetric-568x290\" src=\"https:\/\/articles-img.sftcdn.net\/sft\/articles\/auto-mapping-folder\/sites\/6\/2014\/02\/security_asymmetric-568x290.jpg\" alt=\"\" width=\"568\" height=\"290\" srcset=\"https:\/\/articles-img.sftcdn.net\/auto-mapping-folder\/sites\/6\/2014\/02\/security_asymmetric-568x290.jpg 568w, https:\/\/articles-img.sftcdn.net\/auto-mapping-folder\/sites\/6\/2014\/02\/security_asymmetric-568x290-268x136.jpg 268w\" sizes=\"auto, (max-width: 568px) 100vw, 568px\" \/><\/p>\n<p>\u975e\u5bfe\u79f0\u6697\u53f7\u5316\u306f\u6a5f\u5bc6\u6027\uff08\u4e0a\u90e8\uff09\u3068\u771f\u507d\u6027\uff08\u4e0b\u90e8\uff09\u3092\u78ba\u8a8d\u3057\u307e\u3059<\/p>\n<p>\u975e\u5bfe\u79f0\u6697\u53f7\u5316\u3067\u306f\u3001\u6700\u521d\u306e\u9375\u306e\u3084\u308a\u53d6\u308a\u304c\u4e0d\u8981\u306a\u305f\u3081\u3001\u6697\u53f7\u89e3\u6790\u304c\u6210\u529f\u3059\u308b\u78ba\u7387\u306f\u5927\u5e45\u306b\u4e0b\u304c\u308a\u307e\u3059\u3002\u975e\u5bfe\u79f0\u6697\u53f7\u5316\u306f\u3001\u66f8\u9762\u306b\u7f72\u540d\u3059\u308b\u5834\u5408\u3084\u8457\u4f5c\u6a29\u306e\u78ba\u8a8d\u306e\u969b\u306b\u3082\u3088\u304f\u7528\u3044\u3089\u308c\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11258\" title=\"pgp\" src=\"https:\/\/articles-img.sftcdn.net\/sft\/articles\/auto-mapping-folder\/sites\/6\/2014\/02\/pgp.jpg\" alt=\"\" width=\"516\" height=\"279\" srcset=\"https:\/\/articles-img.sftcdn.net\/auto-mapping-folder\/sites\/6\/2014\/02\/pgp.jpg 516w, https:\/\/articles-img.sftcdn.net\/auto-mapping-folder\/sites\/6\/2014\/02\/pgp-268x144.jpg 268w\" sizes=\"auto, (max-width: 516px) 100vw, 516px\" \/><\/p>\n<p>PGP \u306f\u975e\u5bfe\u79f0\u6697\u53f7\u5316\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u4ee3\u8868\u7684\u306a\u4f8b\u3067\u3059\u3002<\/p>\n<p>\u4e21\u65b9\u306e\u6697\u53f7\u5316\u65b9\u5f0f\u306b\u304a\u3044\u3066\u3001\u30d3\u30c3\u30c8\u307e\u305f\u306f\u30ad\u30fc\u306e\u9577\u3055\u304c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30fc\u306e\u9ad8\u3055\u3092\u8868\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070A3072 \u30d3\u30c3\u30c8 \u30ad\u30fc\u306f\u3001128 \u30d3\u30c3\u30c8 \u30ad\u30fc\u3088\u308a\u3082\u8cb7\u3044\u5f97\u304c\u8907\u96d1\u3067\u96e3\u3057\u304f\u306a\u308a\u3001\u3053\u3046\u3057\u305f\u6697\u53f7\u3092\u4f7f\u7528\u3059\u308b\u306b\u306f\u3088\u308a\u30cf\u30a4\u30b9\u30da\u30c3\u30af\u306a PC \u304c\u5fc5\u8981\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><strong>\u6697\u53f7\u306e\u653b\u6483\u3068\u306f\u4f55\u304b\uff1f<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-thumbnail wp-image-11218\" title=\"cryptanalysis\" src=\"https:\/\/articles-img.sftcdn.net\/sft\/articles\/auto-mapping-folder\/sites\/6\/2014\/02\/cryptanalysis-120x80.jpg\" alt=\"\" width=\"120\" height=\"80\" srcset=\"https:\/\/articles-img.sftcdn.net\/auto-mapping-folder\/sites\/6\/2014\/02\/cryptanalysis-120x80.jpg 120w, https:\/\/articles-img.sftcdn.net\/auto-mapping-folder\/sites\/6\/2014\/02\/cryptanalysis-200x134.jpg 200w\" sizes=\"auto, (max-width: 120px) 100vw, 120px\" \/>\u6697\u53f7\u89e3\u8aad\u306b\u304a\u3044\u3066\u306f\u3001\u6697\u53f7\u5316\u6280\u8853\u306e\u5f31\u70b9\u3092\u7cbe\u67fb\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u8a00\u8a9e\u5b66\u3001\u6570\u5b66\u3001\u30ea\u30d0\u30fc\u30b9\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\uff08\u9006\u884c\u5206\u6790\uff09\u3001\u30a8\u30b9\u30d4\u30aa\u30ca\u30fc\u30b8\u30e5\uff08\u30b9\u30d1\u30a4\u6d3b\u52d5\uff09\u304c\u8907\u5408\u3057\u305f\u8208\u5473\u6df1\u3044\u5206\u91ce\u3067\u3059\u3002<\/p>\n<p>\u6697\u53f7\u653b\u6483\u306e\u6280\u8853\u306f\u3001\u6697\u53f7\u3084\u4fdd\u8b77\u3055\u308c\u305f\u30c7\u30fc\u30bf\u306b\u95a2\u3059\u308b\u60c5\u5831\u306e\u91cf\u306b\u3088\u3063\u3066\u3001\u3055\u307e\u3056\u307e\u306a\u6280\u6cd5\u304c\u7528\u3044\u3089\u308c\u307e\u3059\u3002\u653b\u6483\u3092\u4ed5\u639b\u3051\u308b\u5074\u306b\u3068\u3063\u3066\u306f\u3001\u6697\u53f7\u5316\u306b\u4f7f\u308f\u308c\u3066\u3044\u308b\u6280\u8853\u306b\u95a2\u3059\u308b\u77e5\u8b58\u304c\u6709\u76ca\u306a\u60c5\u5831\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u653b\u6483\u306e\u65b9\u6cd5\u306b\u304b\u304b\u308f\u3089\u305a\u3001\u653b\u6483\u8005\u304c\u5fc5\u8981\u3068\u3059\u308b\u60c5\u5831\u306f3\u3064\u3067\u3059\u3002\u3053\u308c\u3089\u306f\u3001\u6642\u9593\u3001\u4e8b\u524d\u306e\u60c5\u5831\u304a\u3088\u3073\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u30ea\u30bd\u30fc\u30b9\u3067\u3059\u3002\u73fe\u5728\u306e\u6697\u53f7\u5316\u30b7\u30b9\u30c6\u30e0\u306f\u8907\u96d1\u3067\u3042\u308b\u305f\u3081\u3001\u975e\u5e38\u306b\u9ad8\u6027\u80fd\u306a PC \u304c\u5fc5\u8981\u306a\u5834\u5408\u3082\u3042\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11298\" title=\"security_steganography-568x187\" src=\"https:\/\/articles-img.sftcdn.net\/sft\/articles\/auto-mapping-folder\/sites\/6\/2014\/02\/security_steganography-568x187.jpg\" alt=\"\" width=\"568\" height=\"187\" srcset=\"https:\/\/articles-img.sftcdn.net\/auto-mapping-folder\/sites\/6\/2014\/02\/security_steganography-568x187.jpg 568w, https:\/\/articles-img.sftcdn.net\/auto-mapping-folder\/sites\/6\/2014\/02\/security_steganography-568x187-268x88.jpg 268w\" sizes=\"auto, (max-width: 568px) 100vw, 568px\" \/><\/p>\n<p>\u30b9\u30c6\u30ac\u30ce\u30b0\u30e9\u30d5\u30a3\u30fc\u306f\u3001\u307b\u304b\u306e\u60c5\u5831\u306e\u4e2d\u306b\u60c5\u5831\u3092\u96a0\u3059\u624b\u6cd5\u3067\u3059\u3002<\/p>\n<p>\u3088\u304f\u884c\u308f\u308c\u308b\u653b\u6483\u306b\u306f\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u306e\u6027\u80fd\u3092\u30d5\u30eb\u6d3b\u7528\u3057\u3066\u7dcf\u5f53\u308a\u7684\u306b\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u63a8\u6e2c\u3059\u308b \u300c\u30d6\u30eb\u30fc\u30c8\u30d5\u30a9\u30fc\u30b9\u30a2\u30bf\u30c3\u30af\u300d\u304c\u3042\u308a\u307e\u3059\u3002\u30ad\u30fc\u304c\u9577\u3051\u308c\u3070\u9577\u3044\u307b\u3069\u3001\u653b\u6483\u8005\u304c\u8981\u3059\u308b\u6642\u9593\u306f\u9577\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><strong>\u6697\u53f7\u5316\u306e\u30de\u30a4\u30ca\u30b9\u70b9<\/strong><\/p>\n<p>\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u4fdd\u8b77\u3001\u30c7\u30fc\u30bf\u7d71\u5408\u3001\u30aa\u30fc\u30d7\u30f3\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u3089\u60c5\u5831\u3092\u9001\u4fe1\u3059\u308b\u969b\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u78ba\u4fdd\u306a\u3069\u3092\u884c\u3046\u4e0a\u3067\u3001\u6697\u53f7\u5316\u306e\u5fc5\u8981\u6027\u306f\u660e\u3089\u304b\u3067\u3059\u3002\u3002<\/p>\n<p>\u4e00\u65b9\u3001\u6697\u53f7\u5316\u306f\u30de\u30a4\u30ca\u30b9\u306e\u5074\u9762\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-thumbnail wp-image-11208\" title=\"chained-computer\" src=\"https:\/\/articles-img.sftcdn.net\/sft\/articles\/auto-mapping-folder\/sites\/6\/2014\/02\/chained-computer-120x80.jpg\" alt=\"\" width=\"120\" height=\"80\" srcset=\"https:\/\/articles-img.sftcdn.net\/auto-mapping-folder\/sites\/6\/2014\/02\/chained-computer-120x80.jpg 120w, https:\/\/articles-img.sftcdn.net\/auto-mapping-folder\/sites\/6\/2014\/02\/chained-computer-200x134.jpg 200w\" sizes=\"auto, (max-width: 120px) 100vw, 120px\" \/>\u30c7\u30fc\u30bf\u306e\u6697\u53f7\u5316\u306b\u4f7f\u7528\u3057\u305f\u30ad\u30fc\u3092\u7d1b\u5931\u3059\u308b\u3068\u3001\u30c7\u30fc\u30bf\u3078\u306e\u30a2\u30af\u30bb\u30b9\u304c\u6c38\u9060\u306b\u5931\u308f\u308c\u3066\u3057\u307e\u3046\u3053\u3068\u304c\u3001\u660e\u3089\u304b\u306a\u4e0d\u5229\u76ca\u3068\u3057\u3066\u8003\u3048\u3089\u308c\u307e\u3059\u3002\u3053\u3046\u3057\u305f\u56f0\u3063\u305f\u4e8b\u614b\u306f\u3001\u7c21\u5358\u306b\u899a\u3048\u3066\u304a\u3051\u308b\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u6307\u5b9a\u3057\u306a\u3044\u9650\u308a\u3088\u304f\u767a\u751f\u3057\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u7c21\u5358\u306a\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u8a2d\u5b9a\u3059\u308c\u3070\u3001\u7d50\u679c\u7684\u306b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af\u306b\u3055\u3089\u3055\u308c\u308b\u3053\u3068\u306b\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<p>\u4e00\u65b9\u3067\u3001\u5f37\u529b\u306a\u6697\u53f7\u5316\u6280\u8853\u3092\u4f7f\u3063\u305f\u5834\u5408\u3001\u51e6\u7406\u306f\u9045\u304f\u3001\u30b3\u30b9\u30c8\u306f\u9ad8\u304f\u3001\u5229\u4fbf\u6027\u306f\u4f4e\u4e0b\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u3053\u3046\u3057\u305f\u30de\u30a4\u30ca\u30b9\u70b9\u306f\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u6027\u80fd\u304c\u6642\u9593\u3068\u3068\u3082\u306b\u5411\u4e0a\u3057\u305f\u3053\u3068\u306b\u4f34\u3063\u3066\u8efd\u6e1b\u5316\u3055\u308c\u3066\u304d\u307e\u3057\u305f\u304c\u3001\u4f9d\u7136\u3068\u3057\u3066\u8ab2\u984c\u3067\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11268\" title=\"RSADecryptionTime\" src=\"https:\/\/articles-img.sftcdn.net\/sft\/articles\/auto-mapping-folder\/sites\/6\/2014\/02\/RSADecryptionTime.png\" alt=\"\" width=\"456\" height=\"285\" srcset=\"https:\/\/articles-img.sftcdn.net\/auto-mapping-folder\/sites\/6\/2014\/02\/RSADecryptionTime.png 456w, https:\/\/articles-img.sftcdn.net\/auto-mapping-folder\/sites\/6\/2014\/02\/RSADecryptionTime-268x167.png 268w\" sizes=\"auto, (max-width: 456px) 100vw, 456px\" \/><\/p>\n<p>RSA \u30ad\u30fc\u3068\u89e3\u8aad\u6642\u9593\u306e\u9577\u3055\uff08\u5f37\u5ea6\uff09\u306e\u95a2\u4fc2<\/p>\n<p>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u904e\u4fe1\u3057\u6697\u53f7\u5316\u6280\u8853\u3092\u8efd\u3044\u6c17\u6301\u3061\u3067\u4f7f\u3063\u3066\u3057\u307e\u3046\u3068\u3001\u6697\u53f7\u5316\u304c\u4e21\u5200\u306e\u5263\u306b\u3082\u306a\u308a\u3048\u307e\u3059\u3002\u30bd\u30fc\u30b7\u30e3\u30eb\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\uff08\u793e\u4f1a\u5de5\u5b66\uff09\u3084\u96fb\u8a71\u306e\u30cf\u30c3\u30ad\u30f3\u30b0\u3092\u4ecb\u3057\u3066\u653b\u6483\u3055\u308c\u305f\u5834\u5408\u3001\u304b\u306a\u308a\u5f37\u56fa\u306a\u30ad\u30fc\u3059\u3089\u89e3\u8aad\u3055\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<p><strong>\u30c7\u30fc\u30bf\u6697\u53f7\u5316\u306b\u4f7f\u7528\u3059\u3079\u304d\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3068\u306f\uff1f<\/strong><\/p>\n<p>\u30c7\u30fc\u30bf\u306e\u6697\u53f7\u5316\u306f\u3001\u304b\u3064\u3066\u653f\u5e9c\u3084\u4f01\u696d\u3067\u306e\u307f\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u3002\u73fe\u5728\u306f\u3001\u500b\u4eba\u304c PC \u3084\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u3067\u975e\u5e38\u306b\u5f37\u529b\u306a\u6697\u53f7\u5316\u6280\u8853\u3092\u4f7f\u7528\u3067\u304d\u308b\u72b6\u6cc1\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u6697\u53f7\u5316\u3092\u9069\u7528\u3059\u308b\u306b\u306f\u3001\u30c7\u30fc\u30bf\u306e\u9001\u4fe1\u6642\u306b\u6697\u53f7\u5316\u3092\u9069\u7528\u3059\u308b\u65b9\u6cd5\u3068\u3001\u30ed\u30fc\u30ab\u30eb\u3067\u6697\u53f7\u5316\u3059\u308b\u3068\u3044\u3046 2 \u3064\u306e\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002\u524d\u8005\u306f\u30c7\u30fc\u30bf\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u9001\u4fe1\u3055\u308c\u308b\u969b\u306b\u500b\u4eba\u60c5\u5831\u3092\u4fdd\u8b77\u3059\u308b\u3082\u306e\u3067\u3001\u5f8c\u8005\u306f\u30ed\u30fc\u30ab\u30eb\u30c7\u30fc\u30bf\u306e\u500b\u4eba\u60c5\u5831\u3092\u4fdd\u8b77\u3059\u308b\u65b9\u6cd5\u3067\u3059\u3002<\/p>\n<p><strong>\u30c7\u30fc\u30bf\u9001\u4fe1\u6642\u306e\u6697\u53f7\u5316<\/strong><\/p>\n<p><a title=\"hotspot shield\" href=\"http:\/\/hotspot-shield.softonic.jp\/\" target=\"_self\" rel=\"noopener noreferrer\">HotSpot Shield<\/a>\uff08\u30db\u30c3\u30c8\u30b9\u30dd\u30c3\u30c8 \u30b7\u30fc\u30eb\u30c9\uff09:\u00a0 \u6697\u53f7\u5316\u3055\u308c\u305f\u30c8\u30f3\u30cd\u30eb\u3092\u8a2d\u3051\u308b\u3053\u3068\u3067\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3092\u4fdd\u8b77\u3059\u308b VPN \u63a5\u7d9a<\/p>\n<p><a title=\"boxcryptor\" href=\"http:\/\/boxcryptor.softonic.jp\/\" target=\"_self\" rel=\"noopener noreferrer\">BoxCryptor<\/a>\uff08\u30dc\u30c3\u30af\u30b9\u30af\u30ea\u30d7\u30bf\u30fc\uff09:\u00a0 Dropbox \u30d5\u30a1\u30a4\u30eb\u3084\u305d\u306e\u4ed6\u306e\u30af\u30e9\u30a6\u30c9 \u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u6697\u53f7\u5316<\/p>\n<p><a title=\"PGP\" href=\"http:\/\/www.nsd.co.jp\/pgp\/\" target=\"_self\" rel=\"noopener noreferrer\">PGP<\/a>: \u975e\u5e38\u306b\u591a\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u96fb\u5b50\u30e1\u30fc\u30eb<img decoding=\"async\" src=\"http:\/\/jp.blog-manager.redtonic\/wp-admin\/images\/media-button-image.gif?ver=20100531\" alt=\"Add an Image\" \/>\u6697\u53f7\u5316\u65b9\u5f0f<\/p>\n<p><strong>\u30ed\u30fc\u30ab\u30eb\u30c7\u30fc\u30bf\u306e\u6697\u53f7\u5316<\/strong><\/p>\n<p><a title=\"true crypt\" href=\"http:\/\/truecrypt.softonic.jp\/\" target=\"_self\" rel=\"noopener noreferrer\">TrueCrypt<\/a>\uff08\u30c8\u30a5\u30eb\u30fc\u30af\u30ea\u30d7\u30c8\uff09: \u6697\u53f7\u5316\u3055\u308c\u305f\u4eee\u60f3\u30c9\u30e9\u30a4\u30d6\u3092\u4f5c\u6210<\/p>\n<p><a title=\"Axcrypt\" href=\"http:\/\/axcrypt.softonic.jp\/\" target=\"_self\" rel=\"noopener noreferrer\">AxCrypt<\/a>\uff08Ax\u30af\u30ea\u30d7\u30c8\uff09: Windows \u5411\u3051\u306e\u6697\u53f7\u5316<\/p>\n<p><a title=\"SSE\" href=\"https:\/\/play.google.com\/store\/apps\/details?id=com.paranoiaworks.unicus.android.sse\" target=\"_self\" rel=\"noopener noreferrer\">SSE<\/a>(Android )Cipher Suite<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6697\u53f7\u5316\u3068\u306f\u3001\u60c5\u5831\u304c\u4ed6\u8005\u304b\u3089\u8aad\u307f\u53d6\u3089\u308c\u306a\u3044\u3088\u3046\u3001\u60c5\u5831\u3092\u5909\u63db\u3057\u3066\u4fdd\u8b77\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u6697\u53f7\u5316\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u3067\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u8a8d\u8b58\u3067\u304d\u306a\u3044\u72b6\u614b\u306b\u5909\u66f4\u3055\u308c\u3001\u8aad\u89e3\u4e0d\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002\u3067\u3059\u304c\u3001\u60c5\u5831\u306f\u305d\u306e\u307e\u307e\u5b58\u5728\u3057\u3001\u5f8c\u7a0b\u30c7\u30fc\u30bf\u306e\u518d\u53d6\u5f97\u306f\u53ef\u80fd\u3067\u3059\u3002 \u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u6587\u4e2d\u306b\u30a2\u30eb\u30d5\u30a1\u30d9\u30c3\u30c8\u3092\u6df7\u305c\u8fbc\u307f\u3001\u3042\u308b\u6587\u5b57\u3092\u5225\u306e\u6587\u5b57\u306b\u7f6e\u304d\u63db\u3048\u308b\u3053\u3068\u306f\u3001\u6697\u53f7\u5316\u306e\u5178\u578b\u7684\u306a\u4f8b\u3002 \u6697\u53f7\u5316\u3055\u308c\u305f\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u4f5c\u6210\uff08\u307e\u305f\u306f\u89e3\u8aad\uff09\u306b\u306f\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u9001\u4fe1\u8005\u3068\u53d7\u4fe1\u8005\u304c\u79d8\u5bc6\u306e\u30ad\u30fc\u3092\u5171\u6709\u3057\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u6570\u5b66\u7684\u306a\u65b9\u6cd5\u3092\u7814\u7a76\u3059\u308b\u5206\u91ce\u306f\u6697\u53f7\u5b66\u3068\u547c\u3070\u308c\u3066\u3044\u307e\u3059\u3002 \u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u9001\u4fe1\u8005\u3068\u53d7\u4fe1\u8005\u4ee5\u5916\u306e\u7b2c\u4e09\u793e\u304c\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u89e3\u8aad\u3092\u8a66\u307f\u308b\u3053\u3068\u306f\u3001\u6697\u53f7\u653b\u6483\u3068\u8a00\u3044\u307e\u3059\u3002\u6697\u53f7\u5316\u30d5\u30a1\u30a4\u30eb\u3092\u8eca\u306e\u30c8\u30e9\u30f3\u30af\u3068\u3057\u3066\u8003\u3048\u308b\u3068\u3001\u6697\u53f7\u89e3\u8aad\u8005\u3068\u306f\u3001\u8eca\u306e\u9375\u3092\u4f7f\u7528\u305b\u305a\u3001\u30c8\u30e9\u30f3\u30af\u3092\u7121\u7406\u3084\u308a\u958b\u3051\u3088\u3046\u3068\u3059\u308b\u5f37\u76d7\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3057\u3087\u3046\u3002 \u6697\u53f7\u5316\u3068\u306f\u60c5\u5831\u3092\u96a0\u3059\u3053\u3068\u3067\u306f\u3042\u308a\u307e\u305b\u3093 \u6697\u53f7\u5316\u3068\u306f\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u79d8\u533f\u3057\u3066\u30c7\u30fc\u30bf\u3092\u5909\u66f4\u3059\u308b\u6280\u6cd5\u3067\u3059\u3002\u4e00\u65b9\u3001\u30c7\u30fc\u30bf\u96a0\u307a\u3044\u6280\u8853\u306e\u4e00\u3064\u3067\u3042\u308b\u300c\u30b9\u30c6\u30ac\u30ce\u30b0\u30e9\u30d5\u30a3\u30fc\u300d\u3068\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u65b9\u6cd5\u3092\u7528\u3044\u3066\u60c5\u5831\u3092\u96a0\u3059\u6280\u6cd5\u3067\u3042\u308a\u3001\u6697\u53f7\u5316\u3068\u306f\u7570\u306a\u308a\u307e\u3059\u3002\u901a\u5e38\u306f\u6697\u53f7\u6cd5\u6280\u8853\u3068\u7d50\u5408\u3055\u308c\u305f\u3055\u307e\u3056\u307e\u306a\u65b9\u6cd5\u304c\u7528\u3044\u3089\u308c\u3066\u3044\u307e\u3059\u3002 \u30b9\u30c6\u30ac\u30ce\u30b0\u30e9\u30d5\u30a3\u30fc\u306f\u3001\u307b\u304b\u306e\u60c5\u5831\u306e\u4e2d\u306b\u60c5\u5831\u3092\u96a0\u3059\u624b\u6cd5\u3067\u3059\u3002 \u6697\u53f7\u5316\u306e\u76ee\u7684\u306f\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u5185\u5bb9\u304c\u8aad\u307f\u53d6\u3089\u308c\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u3067\u3059\u304c\u3001\u30b9\u30c6\u30ac\u30ce\u30b0\u30e9\u30d5\u30a3\u30fc\u306e\u76ee\u7684\u306f\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u5b58\u5728\u81ea\u4f53\u3092\u308f\u304b\u3089\u306a\u304f\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u4f8b\u3068\u3057\u3066\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u30a4\u30e1\u30fc\u30b8\u306e\u4e2d\u306b\u96a0\u3059\u624b\u6cd5\u3082\u3042\u308a\u307e\u3059\u3002 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&#8220;\u6697\u53f7\u5316\u3063\u3066\u4f55\uff1f&#8221;<\/span><\/a><\/p>\n","protected":false},"author":5078,"featured_media":11228,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","wpcf-pageviews":0},"categories":[1],"tags":[],"usertag":[],"vertical":[],"content-category":[],"class_list":["post-11178","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/cms-articles.softonic.io\/jp\/wp-json\/wp\/v2\/posts\/11178","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cms-articles.softonic.io\/jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cms-articles.softonic.io\/jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cms-articles.softonic.io\/jp\/wp-json\/wp\/v2\/users\/5078"}],"replies":[{"embeddable":true,"href":"https:\/\/cms-articles.softonic.io\/jp\/wp-json\/wp\/v2\/comments?post=11178"}],"version-history":[{"count":0,"href":"https:\/\/cms-articles.softonic.io\/jp\/wp-json\/wp\/v2\/posts\/11178\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cms-articles.softonic.io\/jp\/wp-json\/wp\/v2\/media\/11228"}],"wp:attachment":[{"href":"https:\/\/cms-articles.softonic.io\/jp\/wp-json\/wp\/v2\/media?parent=11178"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cms-articles.softonic.io\/jp\/wp-json\/wp\/v2\/categories?post=11178"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cms-articles.softonic.io\/jp\/wp-json\/wp\/v2\/tags?post=11178"},{"taxonomy":"usertag","embeddable":true,"href":"https:\/\/cms-articles.softonic.io\/jp\/wp-json\/wp\/v2\/usertag?post=11178"},{"taxonomy":"vertical","embeddable":true,"href":"https:\/\/cms-articles.softonic.io\/jp\/wp-json\/wp\/v2\/vertical?post=11178"},{"taxonomy":"content-category","embeddable":true,"href":"https:\/\/cms-articles.softonic.io\/jp\/wp-json\/wp\/v2\/content-category?post=11178"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}