{"id":1095,"date":"2022-03-27T13:11:15","date_gmt":"2022-03-27T04:11:15","guid":{"rendered":"https:\/\/cybersecurity-jp.com\/zero-trust\/?p=263"},"modified":"2022-03-27T13:11:15","modified_gmt":"2022-03-27T04:11:15","slug":"des","status":"publish","type":"post","link":"https:\/\/securityagent.jp\/cont\/cat-security-glossary\/1095\/","title":{"rendered":"DES"},"content":{"rendered":"<h3>DES\u3068\u306f<\/h3>\n<p>DES\uff08Data Encryption Standard\uff09\u306f\u3001<strong>\u5bfe\u79f0\u9375\u6697\u53f7\u65b9\u5f0f\u306e\u4ee3\u8868\u7684\u306a\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e1\u3064<\/strong>\u3002<br \/>\n1977\u5e74\u306b\u30a2\u30e1\u30ea\u30ab\u56fd\u7acb\u6a19\u6e96\u6280\u8853\u7814\u7a76\u6240\uff08NIST\uff09\u306b\u3088\u3063\u3066\u6a19\u6e96\u5316\u3055\u308c\u305f\u3002DES\u306f\u300164\u30d3\u30c3\u30c8\u306e\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u3067\u3042\u308a\u300156\u30d3\u30c3\u30c8\u306e\u9375\u3092\u4f7f\u7528\u3057\u3066\u6697\u53f7\u5316\u30fb\u5fa9\u53f7\u5316\u3092\u884c\u3046\u3002DES\u306f\u3001\u30c7\u30fc\u30bf\u306e\u6697\u53f7\u5316\u306b\u304a\u3044\u3066\u975e\u5e38\u306b\u4e00\u822c\u7684\u306b\u4f7f\u7528\u3055\u308c\u3066\u3044\u305f\u304c\u3001\u73fe\u5728\u3067\u306f\u9375\u9577\u304c\u77ed\u3044\u305f\u3081\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u554f\u984c\u304c\u6307\u6458\u3055\u308c\u3066\u304a\u308a\u3001\u3088\u308a\u5b89\u5168\u306a\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306b\u7f6e\u304d\u63db\u3048\u3089\u308c\u3066\u3044\u308b\u3002<\/p>\n<h3>DES\u306e\u30dd\u30a4\u30f3\u30c8<\/h3>\n<ul>\n<li>DES\u306f\u3001\u5bfe\u79f0\u9375\u6697\u53f7\u65b9\u5f0f\u306e\u4e00\u3064\u3067\u3001\u6697\u53f7\u5316\u3068\u5fa9\u53f7\u5316\u306b\u540c\u3058\u9375\u3092\u4f7f\u7528\u3059\u308b\u3002<\/li>\n<li>56\u30d3\u30c3\u30c8\u306e\u9375\u3092\u4f7f\u7528\u3057\u3066\u30c7\u30fc\u30bf\u3092\u6697\u53f7\u5316\u30fb\u5fa9\u53f7\u5316\u3059\u308b\u3002<\/li>\n<li>64\u30d3\u30c3\u30c8\u306e\u30d6\u30ed\u30c3\u30af\u5358\u4f4d\u3067\u6697\u53f7\u5316\u3092\u884c\u3046\u305f\u3081\u3001\u30c7\u30fc\u30bf\u309264\u30d3\u30c3\u30c8\u5358\u4f4d\u306b\u533a\u5207\u3063\u3066\u6697\u53f7\u5316\u3059\u308b\u3002<\/li>\n<li>\u9375\u306e\u9577\u3055\u304c\u77ed\u3044\u305f\u3081\u3001\u89e3\u8aad\u3055\u308c\u308b\u30ea\u30b9\u30af\u304c\u3042\u308b\u3068\u3055\u308c\u3001\u73fe\u5728\u3067\u306fAES\uff08Advanced Encryption Standard\uff09\u306b\u7f6e\u304d\u63db\u3048\u3089\u308c\u3066\u3044\u308b\u3002<br \/>\n\uff08\u53c2\u8003\uff1a<a href=\"https:\/\/cybersecurity-jp.com\/zero-trust\/word\/267\/\">AES\/\u7528\u8a9e\u96c6<\/a>\uff09<\/li>\n<li>DES\u306f\u30011977\u5e74\u306bNIST\u306b\u3088\u3063\u3066\u6a19\u6e96\u5316\u3055\u308c\u305f\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3067\u3042\u308a\u3001\u5f53\u6642\u306f\u5b89\u5168\u3067\u3042\u308b\u3068\u8003\u3048\u3089\u308c\u3066\u3044\u305f\u304c\u3001\u8a08\u7b97\u6a5f\u306e\u6027\u80fd\u304c\u5411\u4e0a\u3057\u305f\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u89e3\u8aad\u3055\u308c\u308b\u30ea\u30b9\u30af\u304c\u9ad8\u307e\u3063\u3066\u3044\u308b\u3068\u3055\u308c\u308b\u3002<\/li>\n<li>\u9375\u9577\u309256\u30d3\u30c3\u30c8\u306b\u5236\u9650\u3057\u305f\u7406\u7531\u306f\u3001\u5f53\u6642\u306e\u30a2\u30e1\u30ea\u30ab\u5408\u8846\u56fd\u653f\u5e9c\u304c\u6697\u53f7\u898f\u5236\u3092\u884c\u3063\u3066\u304a\u308a\u3001\u8f38\u51fa\u3059\u308b\u6697\u53f7\u88fd\u54c1\u306b\u5bfe\u3057\u3066\u9375\u9577\u306e\u5236\u9650\u3092\u8ab2\u3057\u3066\u3044\u305f\u305f\u3081\u3067\u3042\u308b\u3002<\/li>\n<li>DES\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306f\u3001\u5206\u304b\u308a\u3084\u3059\u304f\u5b9f\u88c5\u304c\u5bb9\u6613\u3067\u3042\u308b\u305f\u3081\u3001\u5b66\u7fd2\u7528\u306e\u6697\u53f7\u3068\u3057\u3066\u3082\u5229\u7528\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308b\u3002<\/li>\n<\/ul>\n<h3>\u304a\u307e\u3051\uff5e\u201c\u30d3\u30c3\u30c8\u201d\u3068\u306f\uff1f\uff5e<\/h3>\n<p>56\u30d3\u30c3\u30c8\u300164\u30d3\u30c3\u30c8\u3068\u3042\u308b\u304c\u3001\u3053\u308c\u306f\u6697\u53f7\u5316\u30fb\u5fa9\u53f7\u5316\u306e\u969b\u306b\u4f7f\u7528\u3055\u308c\u308b\u9375\u306e\u9577\u3055\u3092\u8868\u3059\u3002<br \/>\n<span style=\"text-decoration: underline;\">\u30d3\u30c3\u30c8\u6570\u304c\u591a\u3044\u307b\u3069\u3001\u9375\u306e\u7a2e\u985e\u306e\u6570\u304c\u591a\u304f\u306a\u308b\u305f\u3081\u3001\u89e3\u8aad\u3055\u308c\u308b\u30ea\u30b9\u30af\u304c\u4f4e\u304f\u306a\u308b\u3002<\/span><\/p>\n<p>\u5177\u4f53\u7684\u306b\u306f\u300156\u30d3\u30c3\u30c8\u306e\u5834\u5408\u30012\u306e56\u4e57\u3001\u3059\u306a\u308f\u306172,057,594,037,927,936\u901a\u308a\u306e\u9375\u306e\u4e2d\u304b\u30891\u3064\u3092\u9078\u629e\u3057\u3066\u6697\u53f7\u5316\u3084\u5fa9\u53f7\u5316\u3092\u884c\u3046\u3002\u4e00\u65b9\u300164\u30d3\u30c3\u30c8\u306e\u5834\u5408\u306f\u30012\u306e64\u4e57\u3001\u3059\u306a\u308f\u306118,446,744,073,709,551,616\u901a\u308a\u306e\u9375\u306e\u4e2d\u304b\u30891\u3064\u3092\u9078\u629e\u3057\u3066\u6697\u53f7\u5316\u3084\u5fa9\u53f7\u5316\u3092\u884c\u3046\u3002<\/p>\n<p>\u3064\u307e\u308a\u3001\u9375\u306e\u9577\u3055\u304c64\u30d3\u30c3\u30c8\u306b\u306a\u308b\u3068\u3001\u9375\u306e\u7a2e\u985e\u306e\u6570\u304c56\u30d3\u30c3\u30c8\u306e\u5834\u5408\u306b\u6bd4\u3079\u3066\u3001\u7d044\u500d\u306b\u306a\u308b\u3002\u3053\u308c\u306b\u3088\u3063\u3066\u3001\u89e3\u8aad\u3055\u308c\u308b\u30ea\u30b9\u30af\u304c\u4f4e\u304f\u306a\u308b\u3002\u305f\u3060\u3057\u3001\u9375\u306e\u7a2e\u985e\u306e\u6570\u304c\u591a\u304f\u306a\u308b\u3068\u3001\u6697\u53f7\u5316\u30fb\u5fa9\u53f7\u5316\u306b\u5fc5\u8981\u306a\u8a08\u7b97\u91cf\u304c\u5897\u3048\u3001\u51e6\u7406\u901f\u5ea6\u304c\u4f4e\u4e0b\u3059\u308b\u3068\u3044\u3046\u554f\u984c\u3082\u3042\u308b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>DES\u3068\u306f DES\uff08Data Encryption Standard\uff09\u306f\u3001\u5bfe\u79f0\u9375\u6697\u53f7\u65b9\u5f0f\u306e\u4ee3\u8868\u7684\u306a\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e1\u3064\u3002 1977\u5e74\u306b\u30a2\u30e1\u30ea\u30ab\u56fd\u7acb\u6a19\u6e96\u6280\u8853\u7814\u7a76\u6240\uff08NIST\uff09\u306b\u3088\u3063\u3066\u6a19\u6e96\u5316\u3055\u308c\u305f\u3002DES\u306f\u300164\u30d3\u30c3\u30c8\u306e\u30d6\u30ed\u30c3 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[21],"tags":[],"class_list":["post-1095","post","type-post","status-publish","format-standard","hentry","category-cat-security-glossary"],"acf":[],"_links":{"self":[{"href":"https:\/\/securityagent.jp\/cont\/wp-json\/wp\/v2\/posts\/1095","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/securityagent.jp\/cont\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/securityagent.jp\/cont\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/securityagent.jp\/cont\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/securityagent.jp\/cont\/wp-json\/wp\/v2\/comments?post=1095"}],"version-history":[{"count":0,"href":"https:\/\/securityagent.jp\/cont\/wp-json\/wp\/v2\/posts\/1095\/revisions"}],"wp:attachment":[{"href":"https:\/\/securityagent.jp\/cont\/wp-json\/wp\/v2\/media?parent=1095"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/securityagent.jp\/cont\/wp-json\/wp\/v2\/categories?post=1095"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/securityagent.jp\/cont\/wp-json\/wp\/v2\/tags?post=1095"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}