{"id":48025,"date":"2023-07-24T19:21:14","date_gmt":"2023-07-24T10:21:14","guid":{"rendered":"https:\/\/kinsta.com\/jp\/?p=48025&#038;post_type=knowledgebase&#038;preview_id=48025"},"modified":"2025-10-02T04:46:21","modified_gmt":"2025-10-01T19:46:21","slug":"what-is-encryption","status":"publish","type":"post","link":"https:\/\/kinsta.com\/jp\/blog\/what-is-encryption\/","title":{"rendered":"\u30c7\u30fc\u30bf\u6697\u53f7\u5316\u3068\u306f\u2500\u6982\u8981\u3001\u65b9\u5f0f\u3001\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9"},"content":{"rendered":"<p>\u4f8b\u3048\u3070\u3001\u8ab0\u304b\u306b\u9001\u4fe1\u3057\u305f\u30c6\u30ad\u30b9\u30c8\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u7b2c\u4e09\u8005\u304c\u8997\u3044\u3066\u3044\u308b\u3053\u3068\u3092\u60f3\u50cf\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u3092\u56de\u907f\u3059\u308b\u306e\u306b\u3001\u6697\u53f7\u5316\u3068\u3044\u3046\u624b\u6bb5\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u6697\u53f7\u5316\u306f\u3001\u901a\u5e38\u306e\u30c6\u30ad\u30b9\u30c8\uff08\u5e73\u6587\u3001\u30d7\u30ec\u30fc\u30f3\u30c6\u30ad\u30b9\u30c8\u3068\u3082\uff09\u3092\u3001\u6b63\u3057\u3044\u9375\u3092\u6240\u6709\u3059\u308b\u4eba\u3060\u3051\u304c\u89e3\u8aad\u3067\u304d\u308b\u30b3\u30fc\u30c9\u5316\u3055\u308c\u305f\u8a00\u8a9e\u306b\u5909\u63db\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u901a\u4fe1\u306e\u5b89\u5168\u6027\u306e\u78ba\u4fdd\u3001\u6a5f\u5bc6\u60c5\u5831\u306e\u4fdd\u8b77\u3001\u305d\u3057\u3066\u30c7\u30fc\u30bf\u6f0f\u6d29\u306e\u56de\u907f\u306b\u5f79\u7acb\u3066\u3089\u308c\u307e\u3059\u3002\u307e\u305f\u3001<a href=\"https:\/\/kinsta.com\/blog\/credit-card-fraud-stripe\/\">\u30aa\u30f3\u30e9\u30a4\u30f3\u30b7\u30e7\u30c3\u30d4\u30f3\u30b0\u3067\u306e\u30af\u30ec\u30b8\u30c3\u30c8\u30ab\u30fc\u30c9\u60c5\u5831\u306e\u4fdd\u8b77<\/a>\u306a\u3069\u3001\u65e5\u5e38\u751f\u6d3b\u3067\u3082\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u6697\u53f7\u5316\u306e\u6982\u8981\u3001\u7a2e\u985e\u3001\u5b9f\u7528\u7684\u306a\u4f7f\u7528\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u3054\u7d39\u4ecb\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<div><\/div><kinsta-auto-toc heading=\"Table of Contents\" exclude=\"last\" list-style=\"arrow\" selector=\"h2\" count-number=\"-1\"><\/kinsta-auto-toc>\n<h2>\u6697\u53f7\u5316\u3068\u306f<\/h2>\n<p>\u5148\u306b\u3082\u89e6\u308c\u307e\u3057\u305f\u304c\u3001\u6697\u53f7\u5316\u3068\u306f\u3001\u8aad\u307f\u53d6\u308a\u53ef\u80fd\u306a\u30c6\u30ad\u30b9\u30c8\u3092\u5b89\u5168\u306a\u30b3\u30fc\u30c9\u306b\u5909\u63db\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3042\u308a\u3001\u5916\u90e8\u304b\u3089\u306e\u30a2\u30af\u30bb\u30b9\u304b\u3089\u60c5\u5831\u3092\u4fdd\u8b77\u3059\u308b\u305f\u3081\u306e\u57fa\u672c\u7684\u306a\u6280\u8853\u3067\u3059\u3002<\/p>\n<p>\u958b\u767a\u5f53\u6642\u306f\u3001\u30b9\u30d1\u30a4\u6d3b\u52d5\u3084\u6226\u6642\u4e2d\u306e\u6a5f\u5bc6\u901a\u4fe1\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u304c\u3001\u73fe\u5728\u3067\u306f\u30aa\u30f3\u30e9\u30a4\u30f3\u30c7\u30fc\u30bf\u3092\u4e2d\u5fc3\u306b\u3001\u3088\u308a\u8eab\u8fd1\u306a\u7528\u9014\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30aa\u30f3\u30e9\u30a4\u30f3\u3067\u5171\u6709\u3055\u308c\u308b\u500b\u4eba\u60c5\u5831\u3001\u8ca1\u52d9\u30c7\u30fc\u30bf\u3001\u6a5f\u5bc6\u6587\u66f8\u306a\u3069\u306f\u3001\u30b5\u30a4\u30d0\u30fc\u72af\u7f6a\u304b\u3089\u4fdd\u8b77\u3059\u308b\u305f\u3081\u306b\u6697\u53f7\u5316\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<figure>\n<p><figure style=\"width: 1540px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2023\/07\/what-is-encryption.jpg\" alt=\"\u6697\u53f7\u5316\uff08\u51fa\u5178: Data Center Knowledge\uff09\" width=\"1540\" height=\"800\"><figcaption class=\"wp-caption-text\">\u6697\u53f7\u5316\uff08\u51fa\u5178: <a href=\"https:\/\/www.datacenterknowledge.com\/security\/managing-encryption-data-centers-hard-and-it-will-get-harder\" target=\"_blank\" rel=\"noopener noreferrer\">Data Center Knowledge<\/a>\uff09<\/figcaption><\/figure><\/figure>\n<p>\u6697\u53f7\u5316\u306f\u3001\u6697\u53f7\uff08\u30b5\u30a4\u30d5\u30a1\u30fc\u3068\u3082\uff09\u3001\u307e\u305f\u306f\u6697\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u547c\u3070\u308c\u308b\u65b9\u5f0f\u3092\u5229\u7528\u3057\u3066\u3001\u30c7\u30b8\u30bf\u30eb\u7a7a\u9593\u3067\u901a\u4fe1\u3055\u308c\u308b\u60c5\u5831\u3092\u508d\u53d7\u3057\u3088\u3046\u3068\u3059\u308b\u8005\u304c\u5185\u5bb9\u3092\u8aad\u307f\u53d6\u308c\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<p>\u610f\u56f3\u3055\u308c\u305f\u53d7\u4fe1\u8005\u3060\u3051\u304c\u7279\u5225\u306a\u9375\u3092\u6240\u6709\u3057\u3001\u6697\u53f7\u3092\u89e3\u9664\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305d\u308c\u4ee5\u5916\u306e\u9375\u3092\u6301\u305f\u306a\u3044\u30e6\u30fc\u30b6\u30fc\u306f\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u8aad\u3080\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<h3>\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u304a\u3051\u308b\u6697\u53f7\u5316<\/h3>\n<p>\u6697\u53f7\u5316\u306f\u3001\u591a\u304f\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u67f1\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u8005\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u4fb5\u5165\u3057\u3001\u7c21\u5358\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u500b\u4eba\u60c5\u5831\u3084\u6a5f\u5bc6\u60c5\u5831\u304c\u76d7\u7528\u3055\u308c\u3001\u305d\u306e\u30c7\u30fc\u30bf\u3092\u300c\u4eba\u8cea\u300d\u306b\u8eab\u4ee3\u91d1\u3092\u8981\u6c42\u3055\u308c\u305f\u308a\u3001\u5165\u672d\u5f0f\u3067\u58f2\u5374\u3055\u308c\u305f\u308a\u3059\u308b\u6050\u308c\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u3068\u304d\u3001\u30c7\u30d0\u30a4\u30b9\u306b\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308b\u60c5\u5831\u304c\u6697\u53f7\u5316\u3055\u308c\u3066\u3044\u308c\u3070\u3001\u79d8\u5bc6\u9375\u3092\u6301\u305f\u306a\u3044\u30cf\u30c3\u30ab\u30fc\u306f\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u53d6\u308c\u305a\u3001\u60aa\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u73fe\u5728\u3001\u591a\u304f\u306e\u898f\u5236\u304c\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u57fa\u6e96\u306e\u4e00\u74b0\u3068\u3057\u3066\u3001\u6697\u53f7\u5316\u3092\u8981\u6c42\u3057\u3066\u3044\u307e\u3059\u3002\u91d1\u878d\u6a5f\u95a2\u3084\u533b\u7642\u6a5f\u95a2\u306e\u3088\u3046\u306a\u3001\u500b\u4eba\u60c5\u5831\u3092\u4fdd\u7ba1\u3059\u308b\u7d44\u7e54\u3067\u306f\u7279\u306b\u9855\u8457\u3067\u3059\u3002<\/p>\n<h2>\u30c7\u30fc\u30bf\u6697\u53f7\u5316\u306e\u76ee\u7684<\/h2>\n<p>\u6697\u53f7\u5316\u306e\u57fa\u672c\u7684\u306a\u76ee\u7684\u306f\u3001\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u306b\u3088\u3063\u3066\u6a5f\u5bc6\u60c5\u5831\u304c\u6f0f\u6d29\u3059\u308b\u306e\u3092\u9632\u3050\u3053\u3068\u306b\u3042\u308a\u307e\u3059\u3002\u901a\u4fe1\u3092\u6697\u53f7\u5316\u3059\u308b\u3053\u3068\u3067\u3001\u9001\u4fe1\u4e2d\u3084\u4fdd\u7ba1\u4e2d\u306e\u30c7\u30fc\u30bf\u306e\u6a5f\u5bc6\u6027\u3092\u7dad\u6301\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u306f\u9280\u884c\u3001\u533b\u7642\u6a5f\u95a2\u3001\u8ecd\u4e8b\u7d44\u7e54\u3001\u96fb\u529b\u30fb\u30a8\u30cd\u30eb\u30ae\u30fc\u4f1a\u793e\u3001\u4fdd\u967a\u4f1a\u793e\u306a\u3069\u3001\u7279\u306b\u6a5f\u5bc6\u6027\u306e\u9ad8\u3044\u500b\u4eba\u60c5\u5831\u3092\u6271\u3046\u7d44\u7e54\u306b\u3068\u3063\u3066\u7279\u306b\u91cd\u8981\u3067\u3059\u3002<\/p>\n<p>\u30c7\u30fc\u30bf\u306e\u6697\u53f7\u5316\u306b\u3088\u308a\u3001\u4e0a\u306e\u3088\u3046\u306a\u7d44\u7e54\u304c\u500b\u4eba\u60c5\u5831\u3092\u5b89\u5168\u306b\u4fdd\u6301\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u9867\u5ba2\u3084\u6d88\u8cbb\u8005\u306e\u8eab\u5143\u304c\u6f0f\u6d29\u3059\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u4e00\u822c\u6d88\u8cbb\u8005\u3067\u3042\u3063\u3066\u3082\u3001\u81ea\u5206\u306e\u500b\u4eba\u60c5\u5831\u3092\u4fdd\u8b77\u3057\u305f\u3044\u3068\u8003\u3048\u3066\u3044\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<p>\u6697\u53f7\u5316\u306f\u307e\u305f\u3001\u60c5\u5831\u306e\u6539\u3056\u3093\u3082\u9632\u304e\u307e\u3059\u3002\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u8105\u5a01\u304c\u8513\u5ef6\u3059\u308b\u4eca\u65e5\u306e\u30c7\u30b8\u30bf\u30eb\u6642\u4ee3\u306b\u304a\u3044\u3066\u306f\u3001\u6697\u53f7\u5316\u306b\u3088\u3063\u3066\u3001\u9001\u53d7\u4fe1\u3059\u308b\u60c5\u5831\u306e\u771f\u6b63\u6027\u3092\u78ba\u4fdd\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30c7\u30fc\u30bf\u306e\u5b8c\u5168\u6027\u3068\u4fe1\u983c\u6027\u306e\u5411\u4e0a\u3082\u3001\u6697\u53f7\u5316\u306e\u5927\u304d\u306a\u30e1\u30ea\u30c3\u30c8\u306e\u3072\u3068\u3064\u3067\u3059\u3002<\/p>\n<h2>\u30c7\u30fc\u30bf\u6697\u53f7\u5316\u306e\u65b9\u5f0f<\/h2>\n<p>\u6697\u53f7\u5316\u306b\u306f\u3055\u307e\u3056\u307e\u306a\u7a2e\u985e\u304c\u3042\u308a\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u30ec\u30d9\u30eb\u3084\u4f7f\u3044\u3084\u3059\u3055\u304c\u7570\u306a\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u3001\u4e00\u822c\u7684\u306a\u6697\u53f7\u5316\u306e\u65b9\u5f0f\u3068\u3001\u305d\u308c\u305e\u308c\u306e\u30e1\u30ea\u30c3\u30c8\u3068\u30c7\u30e1\u30ea\u30c3\u30c8\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<h3>\u5bfe\u79f0\u6697\u53f7\u65b9\u5f0f\uff08\u5bfe\u79f0\u9375\u6697\u53f7\u65b9\u5f0f\uff09<\/h3>\n<p>\u5bfe\u79f0\u6697\u53f7\u65b9\u5f0f\u3068\u306f\u3001\u60c5\u5831\u306e\u6697\u53f7\u5316\u3068\u5fa9\u53f7\u306b\u5358\u4e00\u306e\u6697\u53f7\u9375\u3092\u4f7f\u7528\u3059\u308b\u624b\u6cd5\u3067\u3059\u3002\u3064\u307e\u308a\u3001\u60c5\u5831\u3092\u9001\u4fe1\u3059\u308b\u5074\u3068\u53d7\u4fe1\u3059\u308b\u5074\u306e\u53cc\u65b9\u3067\u9375\u3092\u5171\u6709\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u65b9\u5f0f\u306f\u3001\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u5316\u307e\u305f\u306f\u30b9\u30c8\u30ea\u30fc\u30e0\u6697\u53f7\u5316\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u524d\u8005\u3067\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u304c\u4e00\u610f\u306e\u79d8\u5bc6\u306e<a href=\"https:\/\/kinsta.com\/jp\/blog\/wordpress-security-keys\/\">\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ad\u30fc<\/a>\u3092\u5229\u7528\u3057\u3066\u3001\u30d6\u30ed\u30c3\u30af\u5358\u4f4d\u3067\u8a2d\u5b9a\u3055\u308c\u305f\u5927\u304d\u3055\u306e\u30d3\u30c3\u30c8\u3092\u6697\u53f7\u5316\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u5bfe\u3057\u3066\u5f8c\u8005\u306f\u3001\u6697\u53f7\u5316\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3092\u30e1\u30e2\u30ea\u306b\u4fdd\u6301\u305b\u305a\u3001\u6d41\u308c\u3066\u304f\u308b\u30c7\u30fc\u30bf\u3092\u6697\u53f7\u5316\u3057\u307e\u3059\u3002<\/p>\n<figure>\n<p><figure style=\"width: 1256px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2023\/07\/symmetric-encryption.jpg\" alt=\"\u5bfe\u79f0\u6697\u53f7\u65b9\u5f0f\u306e\u4ed5\u7d44\u307f\uff08\u51fa\u5178: Cisco\uff09\" width=\"1256\" height=\"706\"><figcaption class=\"wp-caption-text\">\u5bfe\u79f0\u6697\u53f7\u65b9\u5f0f\u306e\u4ed5\u7d44\u307f\uff08\u51fa\u5178: <a href=\"https:\/\/www.cisco.com\/c\/en\/us\/products\/security\/encryption-explained.html\" target=\"_blank\" rel=\"noopener noreferrer\">Cisco<\/a>\uff09<\/figcaption><\/figure><\/figure>\n<p>\u5bfe\u79f0\u6697\u53f7\u65b9\u5f0f\u306e\u30e1\u30ea\u30c3\u30c8\u306f\u3001\u975e\u5e38\u306b\u9ad8\u901f\u3067\u3042\u308b\u3053\u3068\u3002\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u3092\u6697\u53f7\u5316\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3068\u304d\u306b\u6709\u7528\u3067\u3059\u3002\u305f\u3060\u3057\u5bfe\u79f0\u9375\uff08\u5171\u901a\u9375\u3068\u3082\uff09\u3092\u5927\u91cf\u306b\u7ba1\u7406\u3059\u308b\u3053\u3068\u306f\u96e3\u3057\u304f\u3001\u4e07\u304c\u4e00\u5bfe\u79f0\u9375\u306e\u60c5\u5831\u304c\u6d41\u51fa\u3057\u305f\u5834\u5408\u306f\u3001\u9001\u4fe1\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u4f4e\u4e0b\u3059\u308b\u6050\u308c\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>\u975e\u5bfe\u79f0\u6697\u53f7\u65b9\u5f0f\uff08\u975e\u5bfe\u79f0\u9375\u6697\u53f7\u65b9\u5f0f\uff09<\/h3>\n<p>\u5bfe\u79f0\u6697\u53f7\u65b9\u5f0f\u3068\u306f\u7570\u306a\u308a\u3001\u975e\u5bfe\u79f0\u6697\u53f7\u65b9\u5f0f\u3067\u306f\u3001\u60c5\u5831\u306e\u6697\u53f7\u5316\u3068\u5fa9\u53f7\u306b\u306f\u305d\u308c\u305e\u308c\u5225\u306e\u9375\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u65b9\u5f0f\u306f\u516c\u958b\u9375\u6697\u53f7\u3068\u3082\u547c\u3070\u308c\u3001\u60c5\u5831\u3092\u6697\u53f7\u5316\u3059\u308b\u9375\u304c\u516c\u958b\u3055\u308c\u3001\u591a\u304f\u306e\u4eba\u304c\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d7\u4fe1\u3059\u308b\u5074\u306f\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u5fa9\u53f7\u306b\u4f7f\u7528\u3059\u308b\u79d8\u5bc6\u9375\u3092\u6240\u6709\u3057\u307e\u3059\u3002<\/p>\n<p>\u975e\u5bfe\u79f0\u6697\u53f7\u65b9\u5f0f\u306f\u3001\u57fa\u672c\u7684\u306a\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u591a\u304f\u3067\u4f7f\u7528\u3055\u308c\u3066\u304a\u308a\u3001\u305d\u306e\u5fdc\u7528\u306e\u4e00\u4f8b\u304c\u3001Transport Layer Security\uff08TLS\uff09\u3068Secure Sockets Layer\uff08<a href=\"https:\/\/kinsta.com\/jp\/blog\/free-ssl-certificate\/\">SSL<\/a>\uff09\u3067\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u5b89\u5168\u3067\u306a\u3044\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u3067\u63a5\u7d9a\u3092\u78ba\u7acb\u3059\u308b\u5fc5\u8981\u306e\u3042\u308b\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3067\u3082\u4e00\u822c\u7684\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u63a5\u7d9a\u3092\u4ecb\u3057\u3066\u901a\u4fe1\u3055\u308c\u308b\u60c5\u5831\u3092\u6697\u53f7\u5316\u3059\u308b\u3053\u3068\u3067\u3001\u30d6\u30e9\u30a6\u30b6\u3084\u305d\u306e\u4ed6\u306e\u30c7\u30b8\u30bf\u30eb\u901a\u4fe1\u6a5f\u5668\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5f37\u5316\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<figure id=\"attachment_158741\" aria-describedby=\"caption-attachment-158741\" style=\"width: 1256px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-158741 size-full\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2023\/07\/asymmetric-encryption.jpg\" alt=\"\u975e\u5bfe\u79f0\u6697\u53f7\u65b9\u5f0f\u306e\u4ed5\u7d44\u307f\uff08\u51fa\u5178: Cisco\uff09\" width=\"1256\" height=\"706\"><figcaption id=\"caption-attachment-158741\" class=\"wp-caption-text\">\u975e\u5bfe\u79f0\u6697\u53f7\u65b9\u5f0f\u306e\u4ed5\u7d44\u307f\uff08\u51fa\u5178: <a href=\"https:\/\/www.cisco.com\/c\/en\/us\/products\/security\/encryption-explained.html\" target=\"_blank\" rel=\"noopener noreferrer\">Cisco<\/a>\uff09<\/figcaption><\/figure>\n<p>\u306a\u304a\u3001\u6697\u53f7\u5316\u3067\u4f7f\u7528\u3055\u308c\u308b\u516c\u958b\u9375\u306f\u30e1\u30bf\u30c7\u30fc\u30bf\u3092\u96a0\u3055\u306a\u3044\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3064\u307e\u308a\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u3069\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u304b\u3089\u3044\u3064\u9001\u4fe1\u3055\u308c\u305f\u306e\u304b\u3068\u3044\u3046\u60c5\u5831\u306f\u3001\u8ab0\u3067\u3082\u5165\u624b\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u5bfe\u79f0\u6697\u53f7\u65b9\u5f0f\u3068\u6bd4\u8f03\u3059\u308b\u3068\u304b\u306a\u308a\u4f4e\u901f\u3067\u3059\u3002\u8208\u5473\u6df1\u3044\u3053\u3068\u306b\u3001\u975e\u5bfe\u79f0\u6697\u53f7\u65b9\u5f0f\u306f\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u53d7\u4fe1\u8005\u3078\u306e\u5bfe\u79f0\u9375\u306e\u9001\u4fe1\u306b\u3082\u3088\u304f\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<h3>\u30cf\u30c3\u30b7\u30e5\u5316<\/h3>\n<p>\u30cf\u30c3\u30b7\u30e5\u5316\u306f\u3001\u5165\u529b\u30c7\u30fc\u30bf\u3092\u56fa\u5b9a\u9577\u306e\u51fa\u529b\u306b\u5909\u63db\u3059\u308b\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u540c\u3058\u5165\u529b\u306f\u3001\u30cf\u30c3\u30b7\u30e5\u95a2\u6570\u306b\u3088\u3063\u3066\u5e38\u306b\u540c\u3058\u6587\u5b57\u5217\uff08\u30cf\u30c3\u30b7\u30e5\u5024\uff09\u306b\u7f6e\u304d\u63db\u3048\u3089\u308c\u308b\u305f\u3081\u3001\u30cf\u30c3\u30b7\u30e5\u5024\u3092\u6bd4\u8f03\u3059\u308b\u3053\u3068\u3067\u30c7\u30fc\u30bf\u306e\u5b8c\u5168\u6027\u3092\u691c\u8a3c\u3059\u308b\u306e\u306b\u4fbf\u5229\u3067\u3059\u3002<\/p>\n<p>\u30cf\u30c3\u30b7\u30e5\u5316\u3057\u305f\u6a5f\u5bc6\u60c5\u5831\u306f\u3001\u30cf\u30c3\u30b7\u30e5\u30c6\u30fc\u30d6\u30eb\u306b\u4fdd\u7ba1\u3055\u308c\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u7d44\u7e54\u304c\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u5e73\u6587\u306e\u4ee3\u308f\u308a\u306b\u30cf\u30c3\u30b7\u30e5\u5024\u3067\u4fdd\u5b58\u3057\u305f\u3044\u306a\u3069\u306e\u72b6\u6cc1\u3067\u6709\u7528\u3067\u3059\u3002<\/p>\n<p>\u30cf\u30c3\u30b7\u30e5\u5316\u306f\u3001\u6697\u53f7\u5316\u306e\u4e00\u7a2e\u3068\u8003\u3048\u3089\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u30cf\u30c3\u30b7\u30e5\u5316\u3055\u308c\u305f\u60c5\u5831\u306f\u79d8\u5bc6\u9375\u306a\u3057\u3067\u5fa9\u53f7\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u305f\u3081\u3001\u6697\u53f7\u5316\u3068\u306f\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\u6697\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u306f<\/h2>\n<p>\u5bfe\u79f0\u6697\u53f7\u3001\u975e\u5bfe\u79f0\u6697\u53f7\u306e\u3069\u3061\u3089\u306e\u65b9\u5f0f\u3067\u3042\u3063\u3066\u3082\u3001\u4ea4\u63db\u3055\u308c\u308b\u79d8\u5bc6\u9375\u306b\u306f\u3001\u60c5\u5831\u3092\u6697\u53f7\u5316\u3059\u308b\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u4f7f\u7528\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u3053\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306f\u3001\u6570\u5f0f\u3084\u4e00\u9023\u306e\u30eb\u30fc\u30eb\u3067\u751f\u6210\u3055\u308c\u307e\u3059\u3002\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306f\u3001\u305d\u306e\u65b9\u5f0f\u306e\u6697\u53f7\u5316\u7528\u306b\u751f\u6210\u3055\u308c\u305f\u7279\u5b9a\u306e\u6570\u5f0f\u306b\u57fa\u3065\u3044\u3066\u3001\u5e73\u6587\u3092\u6697\u53f7\u6587\u306b\u5909\u63db\u3057\u307e\u3059\u3002\u6a19\u6e96\u5316\u3055\u308c\u305f\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u5e73\u6587\u306f\u4e88\u6e2c\u53ef\u80fd\u306a\u65b9\u6cd5\u3067\u5fa9\u53f7\u5316\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u6697\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306b\u3082\u3044\u304f\u3064\u304b\u306e\u7a2e\u985e\u304c\u3042\u308a\u3001\u305d\u308c\u305e\u308c\u7570\u306a\u308b\u76ee\u7684\u3001\u696d\u754c\u3001\u6c42\u3081\u3089\u308c\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ec\u30d9\u30eb\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u4e00\u822c\u7684\u306a\u6697\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0<\/h2>\n<div><\/div><kinsta-auto-toc list-style=\"decimal\" selector=\"h3\" count-number=\"6\" sub-toc=\"true\"><\/kinsta-auto-toc>\n<h3>1. DES<\/h3>\n<p>DES\uff08Data Encryption Standard\u3001\u30c7\u30fc\u30bf\u6697\u53f7\u5316\u6a19\u6e96\uff09\u306f\u30011970\u5e74\u4ee3\u306bIBM\u306b\u3088\u3063\u3066\u958b\u767a\u3055\u308c\u3001\u7c73\u56fd\u653f\u5e9c\u306b\u3088\u308b\u500b\u4eba\u60c5\u5831\u306e\u9001\u53d7\u4fe1\u306b\u521d\u3081\u3066\u63a1\u7528\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<p>\u96fb\u5b50\u30c7\u30fc\u30bf\u3092\u6697\u53f7\u5316\u3059\u308b\u305f\u3081\u306e\u5bfe\u79f0\u9375\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3067\u300156\u30d3\u30c3\u30c8\u306e\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u5316\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<figure>\n<p><figure style=\"width: 1200px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2023\/07\/des-encryption.png\" alt=\"DES\uff08\u51fa\u5178: Wikipedia\uff09\" width=\"1200\" height=\"1222\"><figcaption class=\"wp-caption-text\">DES\uff08\u51fa\u5178: <a href=\"https:\/\/en.wikipedia.org\/wiki\/Data_Encryption_Standard\" target=\"_blank\" rel=\"noopener noreferrer\">Wikipedia<\/a>\uff09<\/figcaption><\/figure><\/figure>\n<p>DES\u306f\u53e4\u3044\u6697\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3067\u3042\u308b\u305f\u3081\u3001\u73fe\u5728\u3067\u306f\u307b\u3068\u3093\u3069\u306e\u6697\u53f7\u6a5f\u80fd\u306b\u304a\u3044\u3066\u5b89\u5168\u3068\u898b\u505a\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u304c\u9032\u5316\u3059\u308b\u306b\u3064\u308c\u300156\u30d3\u30c3\u30c8\u3067\u306f\u60c5\u5831\u3092\u5b89\u5168\u306b\u4fdd\u8b77\u3059\u308b\u306e\u306b\u5341\u5206\u3067\u306a\u304f\u306a\u308a\u3001\u9032\u5316\u3057\u305f\u30c7\u30d0\u30a4\u30b9\u306e\u8a08\u7b97\u80fd\u529b\u3067\u5bb9\u6613\u306b\u89e3\u8aad\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u3057\u304b\u3057\u306a\u304c\u3089\u3001DES\u306f\u3088\u308a\u5f37\u529b\u3067\u9ad8\u5ea6\u306a\u6697\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u958b\u767a\u3059\u308b\u8db3\u304c\u304b\u308a\u3068\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<h3>2. \u30c8\u30ea\u30d7\u30ebDES\uff083DES\uff09<\/h3>\n<p>\u30c8\u30ea\u30d7\u30ebDES\u306f\u3001DES\u30e2\u30c7\u30eb\u3092\u6539\u826f\u3059\u308b\u521d\u671f\u306e\u8a66\u307f\u306e\u4e2d\u3067\u8a95\u751f\u3057\u305f\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3067\u3059\u3002<\/p>\n<figure>\n<p><figure style=\"width: 1024px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2023\/07\/3des-encryption.jpg\" alt=\"3DES\u306e\u4ed5\u7d44\u307f\uff08\u51fa\u5178: Cyberhoot\uff09\" width=\"1024\" height=\"414\"><figcaption class=\"wp-caption-text\">3DES\u306e\u4ed5\u7d44\u307f\uff08\u51fa\u5178: <a href=\"https:\/\/cyberhoot.com\/cybrary\/3des-encryption\/\" target=\"_blank\" rel=\"noopener noreferrer\">Cyberhoot<\/a>\uff09<\/figcaption><\/figure><\/figure>\n<p>3DES\u3082\u5bfe\u79f0\u6697\u53f7\u65b9\u5f0f\uff08\u30d6\u30ed\u30c3\u30af\u6697\u53f7\uff09\u3067\u3001\u60c5\u5831\u306e\u6697\u53f7\u5316\u306b64\u30d3\u30c3\u30c8\u306e\u30d6\u30ed\u30c3\u30af\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002DES\u3068\u306f\u7570\u306a\u308a\u30013DES\u3067\u306f3\u56de\u6697\u53f7\u5316\u304c\u884c\u308f\u308c\u308b\u305f\u3081\u3001\u5143\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u96a0\u3059\u3088\u308a\u9ad8\u5ea6\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5b9f\u73fe\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3057\u304b\u3057\u3001\u30a2\u30e1\u30ea\u30ab\u56fd\u7acb\u6a19\u6e96\u6280\u8853\u7814\u7a76\u6240\uff08NIST\uff09\u306f\u30012023\u5e74\u4ee5\u964d\u306e3DES\u306e\u4f7f\u7528\u3092\u7981\u6b62\u3059\u308b\u3053\u3068\u3092\u767a\u8868\u3057\u3066\u3044\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30a2\u306a\u6700\u65b0\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u958b\u767a\u306b\u306f\u4eca\u5f8c\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<h3>3. AES<\/h3>\n<p>AES\uff08Advanced Encryption Standards\u3001\u9ad8\u5ea6\u6697\u53f7\u5316\u6a19\u6e96\uff09\u306fDES\u540c\u69d8\u3001\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u3092\u4f7f\u7528\u3057\u3066\u60c5\u5831\u3092\u6697\u53f7\u5316\u3001\u5fa9\u53f7\u3059\u308b\u5bfe\u79f0\u6697\u53f7\u65b9\u5f0f\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3067\u3059\u3002<\/p>\n<p>AES\u306e\u7279\u5fb4\u306f\u3001\u5229\u7528\u53ef\u80fd\u306a\u9375\u9577\uff08\u6841\u6570\uff09\u306b\u3042\u308a\u3001128\u30d3\u30c3\u30c8\u3001192\u30d3\u30c3\u30c8\u3001256\u30d3\u30c3\u30c8\u306e3\u3064\u306e\u7570\u306a\u308b\u9375\u9577\u3067\u30c7\u30fc\u30bf\u3092\u6697\u53f7\u5316\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u30d3\u30c3\u30c8\u6570\u306f\u4ed6\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3088\u308a\u3082\u5927\u304d\u304f\u3001DES\u3088\u308a\u3082\u306f\u308b\u304b\u306b\u5f37\u529b\u3067\u3059\u3002\u3053\u306e\u7406\u7531\u304b\u3089\u3001AES\u306f\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u304a\u308a\u3001\u73fe\u5728\u5229\u7528\u53ef\u80fd\u306a\u6697\u53f7\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u4e2d\u3067\u3001\u6700\u3082\u5b89\u5168\u306a\u3082\u306e\u306e\u4e00\u3064\u3068\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30d5\u30a1\u30a4\u30eb\u6697\u53f7\u5316\u3001\u7121\u7ddaLAN\u3084\u30d7\u30ed\u30bb\u30c3\u30b5\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3001SSL\u3084TLS\u306a\u3069\u306e\u30af\u30e9\u30a6\u30c9\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30d7\u30ed\u30c8\u30b3\u30eb\u306a\u3069\u3001\u591a\u304f\u306e\u4e00\u822c\u7684\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>4. RSA<\/h3>\n<p>RSA\uff08Rivest-Shamir-Adleman\uff09\u6697\u53f7\u306f\u3001\u975e\u5bfe\u79f0\u6697\u53f7\u65b9\u5f0f\u3067\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u300cRSA\u300d\u306f\u3001\u958b\u767a\u8005\u305d\u308c\u305e\u308c\u306e\u540d\u5b57\u306e\u982d\u6587\u5b57\u3092\u3068\u3063\u3066\u540d\u4ed8\u3051\u3089\u308c\u307e\u3057\u305f\u3002\u975e\u5bfe\u79f0\u6697\u53f7\u65b9\u5f0f\u306e\u305f\u3081\u3001\u9001\u4fe1\u3055\u308c\u305f\u60c5\u5831\u306e\u5fa9\u53f7\u5316\u306b\u306f\u3001\u79d8\u5bc6\u9375\u3068\u516c\u958b\u9375\u306e\u4e21\u65b9\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>RSA\u306f\u30012\u3064\u306e\u5927\u304d\u306a\u7d20\u6570\u3092\u639b\u3051\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u6a5f\u80fd\u3057\u3001\u60aa\u610f\u306e\u3042\u308b\u30e6\u30fc\u30b6\u30fc\u304c\u305d\u306e\u6570\u3092\u751f\u6210\u3057\u305f2\u3064\u306e\u7d20\u6570\u3092\u63a8\u6e2c\u3067\u304d\u308b\u53ef\u80fd\u6027\u3092\u4e0b\u3052\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n<figure>\n<p><figure style=\"width: 1153px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2023\/07\/rsa-encryption.png\" alt=\"RSA\u6697\u53f7\uff08\u51fa\u5178: Simplilearn\uff09\" width=\"1153\" height=\"514\"><figcaption class=\"wp-caption-text\">RSA\u6697\u53f7\uff08\u51fa\u5178: <a href=\"https:\/\/www.simplilearn.com\/tutorials\/cryptography-tutorial\/rsa-algorithm\" target=\"_blank\" rel=\"noopener noreferrer\">Simplilearn<\/a>\uff09<\/figcaption><\/figure><\/figure>\n<p>\u307e\u305f\u3001\u60c5\u5831\u306e\u6697\u53f7\u5316\u306b\u306f\u30011,024\u30d3\u30c3\u30c8\u30012,048\u30d3\u30c3\u30c8\u3001\u6642\u306b\u306f4,096\u30d3\u30c3\u30c8\u306a\u3069\u3001\u975e\u5e38\u306b\u5927\u304d\u306a\u30d3\u30c3\u30c8\u6570\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<p>RSA\u306f\u3001\u79d8\u5bc6\u9375\u3068\u516c\u958b\u9375\u306e\u8a2d\u5b9a\u3092\u5909\u3048\u308b\u3053\u3068\u3067\u3001\u3055\u307e\u3056\u307e\u306a\u7528\u9014\u306b\u5fdc\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4e00\u822c\u7684\u306a\u69cb\u6210\u3067\u306f\u3001\u516c\u958b\u9375\u304c\u6697\u53f7\u5316\u306b\u4f7f\u308f\u308c\u3001\u30c7\u30fc\u30bf\u306e\u5fa9\u53f7\u5316\u306b\u306f\u79d8\u5bc6\u9375\u304c\u5fc5\u8981\u306b\u306a\u308b\u3082\u306e\u3002\u3053\u308c\u306f\u3001\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u306a\u60c5\u5831\u3092\u9001\u4fe1\u3057\u3001\u508d\u53d7\u3055\u308c\u3066\u3082\u8aad\u307f\u53d6\u308c\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u306e\u4e00\u822c\u7684\u306a\u624b\u6cd5\u3067\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001RSA\u6697\u53f7\u3067\u306f\u79d8\u5bc6\u9375\u304c\u30c7\u30fc\u30bf\u3092\u6697\u53f7\u5316\u3057\u3001\u516c\u958b\u9375\u304c\u5fa9\u53f7\u3059\u308b\u3068\u3044\u3046\u9006\u306e\u69cb\u6210\u3082\u53ef\u80fd\u3067\u3059\u3002\u3053\u308c\u306f\u60c5\u5831\u3092\u96a0\u3059\u3068\u3044\u3046\u3088\u308a\u3082\u3001\u9001\u4fe1\u8005\u306e\u771f\u6b63\u6027\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306b\u4f7f\u308f\u308c\u307e\u3059\u3002<\/p>\n<h3>5. Blowfish<\/h3>\n<p>Blowfish\u3082\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u65b9\u5f0f\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3067\u3001DES\u306e\u4ee3\u66ff\u65b9\u5f0f\u3068\u3057\u30661990\u5e74\u4ee3\u306b\u958b\u767a\u3055\u308c\u307e\u3057\u305f\u3002\u9375\u9577\u306f32\u30d3\u30c3\u30c8\u304b\u3089448\u30d3\u30c3\u30c8\u307e\u3067\u306e\u53ef\u5909\u9577\u3067\u3059\u3002<\/p>\n<p>Blowfish\u306e\u30e1\u30ea\u30c3\u30c8\u306f\u3001\u975e\u7279\u8a31\u3067\u3042\u308b\u70b9\u3002\u3064\u307e\u308a\u3001\u8ab0\u3067\u3082\u7121\u6599\u3067\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3084\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a2\u30d7\u30ea\u306a\u3069\u3067\u5e45\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u4ed6\u306e\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3088\u308a\u3082\u4f4e\u901f\u3067\u3042\u308a\u3001\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u3053\u308c\u304c\u6709\u5229\u306b\u50cd\u304f\u3053\u3068\u3082\u3002<\/p>\n<h3>6. \u305d\u306e\u4ed6\uff08Twofish\u3001Threefish\u306a\u3069\uff09<\/h3>\n<p>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5f37\u5316\u306e\u6ce8\u610f\u559a\u8d77\u304b\u3089\u3001Twofish\u3001Threefish\u3001Macguffin\u306a\u3069\u3001\u6570\u3005\u306e\u6697\u53f7\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u304c\u65b0\u305f\u306b\u958b\u767a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u308c\u305e\u308c\u72ec\u81ea\u306e\u6570\u5f0f\u3092\u63a1\u7528\u3057\u3001\u305d\u308c\u305e\u308c\u306b\u30e1\u30ea\u30c3\u30c8\u3068\u30c7\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3069\u308c\u3092\u9078\u629e\u3059\u308b\u306b\u305b\u3088\u3001\u30c7\u30fc\u30bf\u6697\u53f7\u5316\u306b\u4f7f\u7528\u3059\u308b\u30c4\u30fc\u30eb\u304c\u3001NIST\u306a\u3069\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u898f\u5236\u6a5f\u95a2\u306b\u3088\u308b\u73fe\u5728\u306e\u6700\u9ad8\u57fa\u6e96\u3092\u6e80\u305f\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<h2>\u6697\u53f7\u5316\u306e\u4f7f\u7528\u4e8b\u4f8b<\/h2>\n<p>\u6697\u53f7\u5316\u306f\u3001\u30aa\u30f3\u30e9\u30a4\u30f3\u4e0a\u306e\u3055\u307e\u3056\u307e\u306a\u30c7\u30fc\u30bf\u53d6\u5f15\u306e\u4fdd\u8b77\u306b\u65e5\u3005\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30c7\u30fc\u30bf\u306e\u6697\u53f7\u5316\u304c\u884c\u308f\u308c\u3066\u3044\u308b\u3053\u3068\u306b\u6c17\u3065\u3044\u3066\u3044\u306a\u3044\u4eba\u3082\u3044\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>\u4ee5\u4e0b\u3001\u6697\u53f7\u5316\u306e\u65e5\u5e38\u7684\u306a\u4f7f\u7528\u4e8b\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u30d5\u30a1\u30a4\u30eb\u306e\u6697\u53f7\u5316<\/h3>\n<p>Word\u6587\u66f8\u3001PDF\u3001\u753b\u50cf\u306a\u3069\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u901a\u3058\u3066\u6a5f\u5bc6\u60c5\u5831\u3092\u9001\u53d7\u4fe1\u3059\u308b\u5834\u5408\u3001\u30d5\u30a1\u30a4\u30eb\u3092\u6697\u53f7\u5316\u3057\u3066\u30d5\u30a1\u30a4\u30eb\u5185\u306e\u60c5\u5831\u3092\u4fdd\u8b77\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u4e0a\u3067\u8aac\u660e\u3057\u305f\u6697\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u3044\u305a\u308c\u304b\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u8aad\u307f\u53d6\u308a\u306b\u5fa9\u53f7\u7528\u306e\u9375\u304c\u5fc5\u8981\u306b\u306a\u308b\u3088\u3046\u306b\u6697\u53f7\u5316\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u306b\u3088\u3063\u3066\u3001\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u3001\u30c7\u30fc\u30bf\u306e\u76d7\u96e3\u3001\u30c7\u30fc\u30bf\u6f0f\u6d29\u3092\u9632\u6b62\u53ef\u80fd\u3067\u3059\u3002\u307e\u305f\u3001<a href=\"https:\/\/kinsta.com\/blog\/how-to-use-filezilla\/\">Filezilla<\/a>\u306e\u3088\u3046\u306b\u3001\u4fdd\u5b58\u30fb\u9001\u4fe1\u3059\u308b\u6587\u66f8\u3092\u6697\u53f7\u5316\u3067\u304d\u308b\u30c4\u30fc\u30eb\u3082\u5b58\u5728\u3057\u307e\u3059\u3002\u6587\u66f8\u5171\u6709\u306e\u30d7\u30ed\u30bb\u30b9\u306b\u6697\u53f7\u5316\u3092\u7d44\u307f\u8fbc\u3080\u3053\u3068\u3067\u3001\u5927\u5207\u306a\u60c5\u5831\u3092\u3088\u308a\u5b89\u5168\u306b\u4fdd\u3064\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u30c7\u30a3\u30b9\u30af\u306e\u6697\u53f7\u5316<\/h3>\n<p>\u6700\u8fd1\u3067\u306f\u3042\u307e\u308a\u898b\u304b\u3051\u306a\u304f\u306a\u308a\u307e\u3057\u305f\u304c\u3001\u60c5\u5831\u306f\u30cf\u30fc\u30c9\u30c7\u30a3\u30b9\u30af\u3084USB\u30e1\u30e2\u30ea\u306a\u3069\u306e\u7269\u7406\u7684\u306a\u30c7\u30d0\u30a4\u30b9\u306b\u4fdd\u5b58\u3057\u3001\u5171\u6709\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u7269\u7406\u7684\u30c7\u30d0\u30a4\u30b9\u306e\u914d\u5e03\u306b\u3001\u9069\u5207\u306a\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3092\u5c0e\u5165\u3059\u308b\u3053\u3068\u3067\u3001\u30c7\u30d0\u30a4\u30b9\u5185\u306e\u60c5\u5831\u3092\u30cf\u30c3\u30ab\u30fc\u306e\u624b\u306b\u6e21\u3055\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u30c7\u30a3\u30b9\u30af\u3092\u6697\u53f7\u5316\u3059\u308b\u3053\u3068\u3067\u3001\u6697\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u4f7f\u3063\u3066\u7269\u7406\u7684\u306a\u30b9\u30c8\u30ec\u30fc\u30b8\u30c7\u30d0\u30a4\u30b9\u4e0a\u306e\u30c7\u30fc\u30bf\u3092\u30b9\u30af\u30e9\u30f3\u30d6\u30eb\uff08\u5143\u30c7\u30fc\u30bf\u3092\u5909\u63db\u3057\u305f\u308a\u3001\u4e26\u3073\u66ff\u3048\u305f\u308a\u3059\u308b\u3053\u3068\uff09\u3057\u3001\u6b63\u3057\u3044\u79d8\u5bc6\u9375\u3092\u6240\u6709\u3059\u308b\u30e6\u30fc\u30b6\u30fc\u3060\u3051\u304c\u89e3\u9664\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002\u30d5\u30a1\u30a4\u30eb\u6697\u53f7\u5316\u304c\u500b\u3005\u306e\u30d5\u30a1\u30a4\u30eb\u306b\u9069\u7528\u3055\u308c\u308b\u306e\u306b\u5bfe\u3057\u3001\u30c7\u30a3\u30b9\u30af\u6697\u53f7\u5316\u306f\u30c7\u30a3\u30b9\u30af\u69cb\u9020\u5168\u4f53\u306b\u9069\u7528\u3055\u308c\u3001\u4e2d\u306b\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308b\u3059\u3079\u3066\u306e\u30d5\u30a1\u30a4\u30eb\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u30c7\u30a3\u30b9\u30af\u3092\u6697\u53f7\u5316\u3059\u308b\u3053\u3068\u3067\u3001\u6a5f\u5bc6\u30c7\u30fc\u30bf\u3092\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u3084\u60aa\u7528\u304b\u3089\u5b88\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u30e1\u30fc\u30eb\u306e\u6697\u53f7\u5316<\/h3>\n<p>\u30e1\u30fc\u30eb\u306e\u6697\u53f7\u5316\u3082\u4e00\u822c\u7684\u3067\u3001\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002<\/p>\n<p>\u30e1\u30fc\u30eb\u306e\u6697\u53f7\u5316\u306f\u3001\u30e1\u30fc\u30eb\u306e\u5185\u5bb9\u3092\u6a29\u9650\u306e\u306a\u3044\u7b2c\u4e09\u8005\u306b\u95b2\u89a7\u3055\u308c\u306a\u3044\u3088\u3046\u306b\u4fdd\u8b77\u3057\u307e\u3059\u3002\u653b\u6483\u8005\u306b\u30e1\u30fc\u30eb\u3092\u508d\u53d7\u3055\u308c\u3066\u3082\u3001\u89e3\u8aad\u3055\u308c\u308b\u3053\u3068\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u3001\u4f01\u696d\u304c\u30c7\u30fc\u30bf\u4fdd\u8b77\u898f\u5236\u306b\u6e96\u62e0\u3057\u3001\u9867\u5ba2\u60c5\u5831\u306e\u6a5f\u5bc6\u6027\u3092\u78ba\u4fdd\u3059\u308b\u306e\u306b\u3082\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/kinsta.com\/jp\/blog\/secure-email-providers\/\">\u5b89\u5168\u306a\u30e1\u30fc\u30eb\u30b5\u30fc\u30d3\u30b9<\/a>\u3092\u9078\u3076\u306b\u306f\u3001\u305d\u306e\u4f1a\u793e\u304c\u9ad8\u5ea6\u306a\u6697\u53f7\u5316\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>\u30af\u30e9\u30a6\u30c9\u4e0a\u306e\u6697\u53f7\u5316<\/h3>\n<p><a href=\"https:\/\/kinsta.com\/jp\/blog\/cloud-security\/\">\u30af\u30e9\u30a6\u30c9\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3<\/a>\u306f\u3001\u4eca\u65e5\u306e\u30b5\u30a4\u30d0\u30fc\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u304a\u3044\u3066\u7279\u306b\u91cd\u8981\u306a\u5b58\u5728\u3067\u3059\u3002\u79c1\u305f\u3061\u304c\u30a6\u30a7\u30d6\u4e0a\u3067\u884c\u3046\u3053\u3068\u306e\u307b\u3068\u3093\u3069\u306f\u3001\u30af\u30e9\u30a6\u30c9\u4e0a\u306e\u30b5\u30fc\u30d0\u30fc\u306b\u4fdd\u5b58\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u30a2\u30af\u30bb\u30b9\u306b\u3057\u3084\u3059\u3055\u306f\u3001\u30e1\u30ea\u30c3\u30c8\u3067\u3042\u308b\u3068\u540c\u6642\u306b\u30c7\u30e1\u30ea\u30c3\u30c8\u3067\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u30af\u30e9\u30a6\u30c9\u306b\u304a\u3051\u308b\u30c7\u30fc\u30bf\u306e\u6697\u53f7\u5316\u3082\u5b89\u5168\u78ba\u4fdd\u306b\u6b20\u304b\u305b\u307e\u305b\u3093\u3002\u30af\u30e9\u30a6\u30c9\u30b5\u30fc\u30d0\u30fc\u306b\u4fdd\u5b58\u3059\u308b\u524d\u306b\u30c7\u30fc\u30bf\u3092\u6697\u53f7\u5316\u3057\u3001\u60aa\u610f\u306e\u3042\u308b\u7b2c\u4e09\u8005\u3084\u3001\u6a29\u9650\u3092\u6301\u305f\u306a\u3044\u30e6\u30fc\u30b6\u30fc\u306b\u3088\u308b\u30a2\u30af\u30bb\u30b9\u3092\u56f0\u96e3\u306b\u3057\u307e\u3059\u3002\u6697\u53f7\u9375\u306f\u30af\u30e9\u30a6\u30c9\u30b5\u30fc\u30d3\u30b9\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u3001\u307e\u305f\u306f\u30e6\u30fc\u30b6\u30fc\u672c\u4eba\u304c\u7ba1\u7406\u3059\u308b\u306e\u304c\u901a\u4f8b\u3067\u3059\u3002<\/p>\n<h3>\u30a8\u30f3\u30c9\u30c4\u30fc\u30a8\u30f3\u30c9\u6697\u53f7\u5316\uff08E2EE\uff09<\/h3>\n<p>\u30e1\u30c3\u30bb\u30fc\u30b8\u30f3\u30b0\u30a2\u30d7\u30ea\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u77e5\u3089\u305a\u306b\u30a8\u30f3\u30c9\u30c4\u30fc\u30a8\u30f3\u30c9\u6697\u53f7\u5316\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3067\u3059\u3002\u30a8\u30f3\u30c9\u30c4\u30fc\u30a8\u30f3\u30c9\u306e\u6697\u53f7\u5316\u306b\u3088\u308a\u3001\u9001\u4fe1\u8005\u3068\u53d7\u4fe1\u8005\u306e\u307f\u304c\u30c6\u30ad\u30b9\u30c8\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u5185\u5bb9\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>LINE\u3084Facebook Messanger\u306e\u3088\u3046\u306a\u4eba\u6c17\u30e1\u30c3\u30bb\u30fc\u30b8\u30f3\u30b0\u30a2\u30d7\u30ea\u3067\u306f\u3001\u30a8\u30f3\u30c9\u30c4\u30fc\u30a8\u30f3\u30c9\u6697\u53f7\u5316\u3092\u5c0e\u5165\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u901a\u4fe1\u3092\u4fdd\u8b77\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\u6697\u53f7\u5316\u306f\u73fe\u4ee3\u306e\u30c7\u30b8\u30bf\u30eb\u793e\u4f1a\u306b\u304a\u3044\u3066\u3054\u304f\u4e00\u822c\u7684\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u305d\u308c\u306b\u306f\u7406\u7531\u304c\u3042\u308a\u307e\u3059\u3002\u3042\u3089\u305f\u3081\u3066\u3001\u30c7\u30fc\u30bf\u6697\u53f7\u5316\u306e\u30e1\u30ea\u30c3\u30c8\u3082\u62bc\u3055\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2>\u30c7\u30fc\u30bf\u6697\u53f7\u5316\u306e\u30e1\u30ea\u30c3\u30c8<\/h2>\n<figure>\n<p><figure style=\"width: 1000px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/kinsta.com\/wp-content\/uploads\/2023\/07\/benefits-of-encryption.png\" alt=\"\u6697\u53f7\u5316\u306e\u30e1\u30ea\u30c3\u30c8\uff08\u51fa\u5178: Aureon\uff09\" width=\"1000\" height=\"700\"><figcaption class=\"wp-caption-text\">\u6697\u53f7\u5316\u306e\u30e1\u30ea\u30c3\u30c8\uff08\u51fa\u5178: <a href=\"https:\/\/www.aureon.com\/services\/it-management\/it-services\/security\/data-encryption-why-you-should-protect-your-business\/\" target=\"_blank\" rel=\"noopener noreferrer\">Aureon<\/a>\uff09<\/figcaption><\/figure><\/figure>\n<h3>\u30c7\u30fc\u30bf\u4fdd\u8b77\u898f\u5236\u3078\u306e\u6e96\u62e0<\/h3>\n<p>\u4f01\u696d\u3084\u7d44\u7e54\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u30c7\u30fc\u30bf\u4fdd\u8b77\u898f\u5236\u306b\u6e96\u62e0\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u3053\u306e\u898f\u5247\u306e\u591a\u304f\u3067\u306f\u3001\u4fdd\u5b58\u3001\u9001\u4fe1\u3092\u884c\u3046\u6a5f\u5bc6\u30c7\u30fc\u30bf\u306e\u6697\u53f7\u5316\u304c\u8981\u6c42\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001EC\u30b9\u30c8\u30a2\u306b\u7fa9\u52d9\u4ed8\u3051\u3089\u308c\u3066\u3044\u308b<a href=\"https:\/\/kinsta.com\/jp\/blog\/pci-compliant-hosting\/\">PCI\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9<\/a>\uff08PCI DSS\uff09\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002\u3053\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u57fa\u6e96\u306f\u3001\u30af\u30ec\u30b8\u30c3\u30c8\u30ab\u30fc\u30c9\u60c5\u5831\u3092\u6697\u53f7\u5316\u3057\u3001\u5b89\u5168\u306b\u4fdd\u5b58\u3001\u9001\u4fe1\u3055\u308c\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3059\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n<p>\u81ea\u793e\u306e\u30c7\u30fc\u30bf\u304c\u9069\u5207\u306b\u6697\u53f7\u5316\u3055\u308c\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u628a\u63e1\u3057\u3066\u304a\u3051\u3070\u3001\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u9055\u53cd\u306b\u3088\u308b\u7f70\u91d1\u3084\u8a34\u8a1f\u3001\u4fdd\u967a\u91d1\u8acb\u6c42\u306e\u62d2\u5426\u3092\u56de\u907f\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u5fc5\u8981\u306a\u57fa\u6e96\u3092\u6e80\u305f\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3001IT\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u62c5\u5f53\u8005\u306b\u5fc5\u305a\u78ba\u8a8d\u3092\u53d6\u308a\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30af\u306e\u4fdd\u8b77<\/h3>\n<p>\u50cd\u304d\u65b9\u6539\u9769\u306b\u4f34\u3044\u3001\u4e00\u822c\u7684\u306b\u306a\u308a\u3064\u3064\u3042\u308b\u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30af\u306b\u306f\u591a\u304f\u306e\u5229\u70b9\u304c\u3042\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u6a5f\u5bc6\u60c5\u5831\u306e\u9001\u4fe1\u306b\u95a2\u3057\u3066\u306f\u3001<a href=\"https:\/\/kinsta.com\/blog\/work-from-home-security\/\">\u3055\u3089\u306a\u308b\u30ea\u30b9\u30af\u304c\u751f\u3058\u308b<\/a>\u53ef\u80fd\u6027\u3082\u3002\u3068\u3044\u3046\u306e\u3082\u3001\u30ea\u30e2\u30fc\u30c8\u30ef\u30fc\u30af\u3067\u306f\u3001\u30e1\u30fc\u30eb\u3084\u30a4\u30f3\u30b9\u30bf\u30f3\u30c8\u30e1\u30c3\u30bb\u30fc\u30b8\u3067\u306e\u60c5\u5831\u9001\u4fe1\u304c\u5897\u3048\u3001\u5fc5\u7136\u7684\u306b\u508d\u53d7\u306e\u53ef\u80fd\u6027\u304c\u9ad8\u307e\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n<p>\u591a\u304f\u306e\u4f01\u696d\u304cVPN\u3084<a 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href=\"https:\/\/kinsta.com\/jp\/blog\/what-is-a-ddos-attack\/\">DDoS\u653b\u6483<\/a>\u3001<a 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