{"id":477092,"date":"2023-08-09T09:06:59","date_gmt":"2023-08-09T09:06:59","guid":{"rendered":"https:\/\/oneproxy.pro\/wiki\/encryption\/"},"modified":"2023-09-05T11:13:58","modified_gmt":"2023-09-05T11:13:58","slug":"encryption","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/jp\/wiki\/encryption\/","title":{"rendered":"\u6697\u53f7\u5316"},"content":{"rendered":"<p>\u5b89\u5168\u306a\u30aa\u30f3\u30e9\u30a4\u30f3\u901a\u4fe1\u306e\u57fa\u790e\u3067\u3042\u308b\u6697\u53f7\u5316\u306f\u3001\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u3092\u9632\u3050\u305f\u3081\u306b\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u53d6\u308a\u4e0d\u53ef\u80fd\u306a\u5f62\u5f0f\u306b\u5909\u63db\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u3067\u3059\u3002\u6697\u53f7\u6587\u3068\u3057\u3066\u77e5\u3089\u308c\u308b\u6697\u53f7\u5316\u3055\u308c\u305f\u30c7\u30fc\u30bf\u306f\u3001\u9069\u5207\u306a\u5fa9\u53f7\u30ad\u30fc\u3092\u4f7f\u7528\u3057\u306a\u3044\u3068\u5143\u306e\u5f62\u5f0f\u306b\u5fa9\u53f7\u3067\u304d\u307e\u305b\u3093\u3002\u3053\u308c\u306f\u6a5f\u5bc6\u30c7\u30fc\u30bf\u3092\u8997\u304d\u898b\u304b\u3089\u4fdd\u8b77\u3059\u308b\u4e0a\u3067\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u3001\u30aa\u30f3\u30e9\u30a4\u30f3\u53d6\u5f15\u306e\u4fdd\u8b77\u304b\u3089\u96fb\u5b50\u30e1\u30fc\u30eb\u3084\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u6a5f\u5bc6\u4fdd\u6301\u307e\u3067\u5e45\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u6697\u53f7\u5316\u306e\u8d77\u6e90\u3068\u305d\u306e\u6700\u521d\u306e\u8a00\u53ca<\/h2>\n<p>\u6697\u53f7\u5316\u306e\u30eb\u30fc\u30c4\u306f\u53e4\u4ee3\u30ed\u30fc\u30de\u3068\u30ae\u30ea\u30b7\u30e3\u306b\u307e\u3067\u9061\u308a\u307e\u3059\u3002\u3053\u306e\u6982\u5ff5\u306f\u5f53\u521d\u3001\u8ecd\u4e8b\u901a\u4fe1\u306b\u4f7f\u7528\u3055\u308c\u307e\u3057\u305f\u3002\u6697\u53f7\u5316\u306e\u6700\u3082\u521d\u671f\u306e\u4f8b\u306e 1 \u3064\u306f\u3001\u8ecd\u4e8b\u547d\u4ee4\u306e\u6697\u53f7\u5316\u306b\u4f7f\u7528\u3057\u305f\u30b8\u30e5\u30ea\u30a2\u30b9 \u30b7\u30fc\u30b6\u30fc\u306b\u3061\u306a\u3093\u3067\u540d\u4ed8\u3051\u3089\u308c\u305f\u30b7\u30fc\u30b6\u30fc\u6697\u53f7\u3067\u3059\u3002\u3053\u306e\u6697\u53f7\u306f\u3001\u5358\u7d14\u306b\u30a2\u30eb\u30d5\u30a1\u30d9\u30c3\u30c8\u306e\u6587\u5b57\u3092\u4e00\u5b9a\u91cf\u305a\u3089\u3057\u3066\u3001\u305d\u306e\u30b7\u30d5\u30c8\u306b\u95a2\u3059\u308b\u77e5\u8b58\u304c\u306a\u3051\u308c\u3070\u8ab0\u306b\u3082\u7406\u89e3\u3067\u304d\u306a\u3044\u6697\u53f7\u5316\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u73fe\u4ee3\u306b\u8a71\u304c\u9032\u3080\u3068\u3001\u30c7\u30b8\u30bf\u30eb\u6642\u4ee3\u306e\u5230\u6765\u306b\u3088\u308a\u3001\u6697\u53f7\u5316\u6280\u8853\u306b\u9769\u547d\u7684\u306a\u5909\u5316\u304c\u898b\u3089\u308c\u307e\u3057\u305f\u3002 1970 \u5e74\u4ee3\u306b\u3001\u6697\u53f7\u5316\u3068\u5fa9\u53f7\u5316\u306e\u4e21\u65b9\u306b\u540c\u3058\u30ad\u30fc\u3092\u4f7f\u7528\u3059\u308b DES (\u30c7\u30fc\u30bf\u6697\u53f7\u5316\u6a19\u6e96) \u306e\u3088\u3046\u306a\u5bfe\u79f0\u30ad\u30fc \u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u304c\u767b\u5834\u3057\u307e\u3057\u305f\u3002\u305d\u306e\u5f8c\u30011970 \u5e74\u4ee3\u5f8c\u534a\u306b RSA (Rivest-Shamir-Adleman) \u304c\u975e\u5bfe\u79f0\u6697\u53f7\u5316\u3092\u5c0e\u5165\u3057\u3001\u30c7\u30b8\u30bf\u30eb \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u65b0\u305f\u306a\u7ae0\u306e\u59cb\u307e\u308a\u3068\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<h2>\u6697\u53f7\u5316\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u8aac\u660e\u3059\u308b<\/h2>\n<p>\u6697\u53f7\u5316\u306b\u3088\u308a\u3001\u5e73\u6587\u306e\u8aad\u307f\u53d6\u308a\u53ef\u80fd\u306a\u30c7\u30fc\u30bf\u304c\u30b9\u30af\u30e9\u30f3\u30d6\u30eb\u3055\u308c\u305f\u8aad\u307f\u53d6\u308a\u4e0d\u53ef\u80fd\u306a\u30c6\u30ad\u30b9\u30c8\u306b\u5909\u63db\u3055\u308c\u3001\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u304c\u9632\u6b62\u3055\u308c\u307e\u3059\u3002\u5909\u63db\u30d7\u30ed\u30bb\u30b9\u3067\u306f\u3001\u6697\u53f7\u3068\u547c\u3070\u308c\u308b\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u30ad\u30fc\u304c\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u6697\u53f7\u5316\u306b\u306f\u3001\u5bfe\u79f0\u6697\u53f7\u5316\u3068\u975e\u5bfe\u79f0\u6697\u53f7\u5316\u306e 2 \u3064\u306e\u4e3b\u306a\u30bf\u30a4\u30d7\u304c\u3042\u308a\u307e\u3059\u3002\u5bfe\u79f0\u6697\u53f7\u5316\u3067\u306f\u3001\u6697\u53f7\u5316\u3068\u5fa9\u53f7\u5316\u306e\u4e21\u65b9\u306b\u540c\u3058\u30ad\u30fc\u304c\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002 DES \u304a\u3088\u3073 AES (Advanced Encryption Standard) \u306f\u5bfe\u79f0\u6697\u53f7\u5316\u306e\u4f8b\u3067\u3059\u3002\u516c\u958b\u30ad\u30fc\u6697\u53f7\u5316\u3068\u3082\u547c\u3070\u308c\u308b\u975e\u5bfe\u79f0\u6697\u53f7\u5316\u3067\u306f\u3001\u6697\u53f7\u5316\u7528\u3068\u5fa9\u53f7\u5316\u7528\u306e 2 \u3064\u306e\u7570\u306a\u308b\u30ad\u30fc\u304c\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002 RSA \u304a\u3088\u3073 ECC (\u6955\u5186\u66f2\u7dda\u6697\u53f7) \u306f\u3001\u975e\u5bfe\u79f0\u6697\u53f7\u5316\u306e\u4f8b\u3067\u3059\u3002<\/p>\n<p>\u30c7\u30fc\u30bf\u304c\u6697\u53f7\u5316\u3055\u308c\u308b\u3068\u3001\u89e3\u8aad\u4e0d\u80fd\u306b\u306a\u308a\u3001\u4e0d\u6b63\u306a\u30a2\u30af\u30bb\u30b9\u304b\u3089\u4fdd\u8b77\u3055\u308c\u307e\u3059\u3002\u9069\u5207\u306a\u30ad\u30fc\u3092\u6301\u3063\u3066\u3044\u308b\u4eba\u3060\u3051\u304c\u30c7\u30fc\u30bf\u3092\u5fa9\u53f7\u5316\u3057\u3066\u7406\u89e3\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u5b89\u5168\u306a Web \u30d6\u30e9\u30a6\u30b8\u30f3\u30b0\u306e\u305f\u3081\u306e HTTPS (Hypertext Transfer Protocol Secure) \u3084\u5b89\u5168\u306a\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u901a\u4fe1\u306e\u305f\u3081\u306e SSL\/TLS (Secure Sockets Layer\/Transport Layer Security) \u306a\u3069\u3001\u591a\u304f\u306e\u5b89\u5168\u306a\u30b7\u30b9\u30c6\u30e0\u306e\u57fa\u76e4\u3067\u3059\u3002<\/p>\n<h2>\u6697\u53f7\u5316\u306e\u5185\u90e8\u69cb\u9020<\/h2>\n<p>\u6697\u53f7\u5316\u30d7\u30ed\u30bb\u30b9\u306f\u5e73\u6587 (\u8aad\u307f\u53d6\u308a\u53ef\u80fd\u306a\u30c7\u30fc\u30bf) \u304b\u3089\u59cb\u307e\u308a\u3001\u6697\u53f7\u5316\u30ad\u30fc\u3068\u3068\u3082\u306b\u6697\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u901a\u904e\u3057\u307e\u3059\u3002\u6697\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306f\u3001\u6697\u53f7\u5316\u30ad\u30fc\u306b\u57fa\u3065\u3044\u3066\u5e73\u6587\u3092\u30b9\u30af\u30e9\u30f3\u30d6\u30eb\u3057\u3001\u6697\u53f7\u6587\u3092\u751f\u6210\u3057\u307e\u3059\u3002\u6b63\u3057\u3044\u5fa9\u53f7\u5316\u30ad\u30fc\u306e\u307f\u304c\u30d7\u30ed\u30bb\u30b9\u3092\u5143\u306b\u623b\u3057\u3001\u6697\u53f7\u6587\u3092\u5143\u306e\u5e73\u6587\u5f62\u5f0f\u306b\u623b\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u5bfe\u79f0\u6697\u53f7\u5316\u4e2d\u306f\u3001\u6697\u53f7\u5316\u3068\u5fa9\u53f7\u5316\u306e\u4e21\u65b9\u306b\u540c\u3058\u30ad\u30fc\u304c\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u30ad\u30fc\u306f\u3001\u9001\u4fe1\u8005\u3068\u53d7\u4fe1\u8005\u306e\u9593\u3067\u5b89\u5168\u306b\u5171\u6709\u3055\u308c\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u5bfe\u7167\u7684\u306b\u3001\u975e\u5bfe\u79f0\u6697\u53f7\u5316\u306b\u306f\u3001\u6697\u53f7\u5316\u7528\u306e\u516c\u958b\u30ad\u30fc\u3068\u5fa9\u53f7\u5316\u7528\u306e\u79d8\u5bc6\u30ad\u30fc\u306e\u30da\u30a2\u306e\u30ad\u30fc\u304c\u5fc5\u8981\u3067\u3059\u3002\u516c\u958b\u30ad\u30fc\u306f\u516c\u958b\u3057\u3066\u914d\u5e03\u3055\u308c\u307e\u3059\u304c\u3001\u79d8\u5bc6\u30ad\u30fc\u306f\u305d\u306e\u6240\u6709\u8005\u306b\u3088\u3063\u3066\u79d8\u5bc6\u306b\u4fdd\u305f\u308c\u307e\u3059\u3002\u8ab0\u3067\u3082\u516c\u958b\u30ad\u30fc\u3092\u4f7f\u7528\u3057\u3066\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u6697\u53f7\u5316\u3067\u304d\u307e\u3059\u304c\u3001\u79d8\u5bc6\u30ad\u30fc\u306e\u6240\u6709\u8005\u3060\u3051\u304c\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u5fa9\u53f7\u5316\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>\u6697\u53f7\u5316\u306e\u4e3b\u306a\u6a5f\u80fd<\/h2>\n<ul>\n<li>\n<p><strong>\u6a5f\u5bc6\u4fdd\u6301<\/strong>: \u6697\u53f7\u5316\u306b\u3088\u308a\u3001\u6a29\u9650\u306e\u306a\u3044\u500b\u4eba\u304c\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u53d6\u308b\u3053\u3068\u304c\u3067\u304d\u306a\u304f\u306a\u308a\u3001\u30c7\u30fc\u30bf\u304c\u4fdd\u8b77\u3055\u308c\u307e\u3059\u3002\u6b63\u3057\u3044\u30ad\u30fc\u3092\u6301\u3063\u3066\u3044\u308b\u4eba\u3060\u3051\u304c\u5fa9\u53f7\u5316\u3057\u3066\u5143\u306e\u30c7\u30fc\u30bf\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u8aa0\u5b9f\u3055<\/strong>: \u6697\u53f7\u5316\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u9001\u4fe1\u4e2d\u306b\u30c7\u30fc\u30bf\u304c\u6539\u3056\u3093\u3055\u308c\u305f\u304b\u3069\u3046\u304b\u3092\u691c\u51fa\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u8a8d\u8a3c<\/strong>: \u516c\u958b\u30ad\u30fc\u6697\u53f7\u5316\u306f\u3001\u9001\u4fe1\u8005\u304c\u4e00\u610f\u306e\u79d8\u5bc6\u30ad\u30fc\u3092\u4f7f\u7528\u3057\u3066\u30c7\u30fc\u30bf\u3092\u6697\u53f7\u5316\u3059\u308b\u305f\u3081\u3001\u9001\u4fe1\u8005\u306e\u8eab\u5143\u3092\u78ba\u8a8d\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u5426\u8a8d\u9632\u6b62<\/strong>: \u975e\u5bfe\u79f0\u6697\u53f7\u5316\u306f\u3001\u79d8\u5bc6\u30ad\u30fc\u3067\u6697\u53f7\u5316\u3055\u308c\u305f\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u5bfe\u5fdc\u3059\u308b\u516c\u958b\u30ad\u30fc\u3067\u306e\u307f\u5fa9\u53f7\u5316\u3067\u304d\u308b\u305f\u3081\u3001\u5426\u8a8d\u9632\u6b62\u3082\u4fdd\u8a3c\u3057\u3001\u9001\u4fe1\u8005\u306e\u8eab\u5143\u3092\u8a3c\u660e\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ul>\n<h2>\u6697\u53f7\u5316\u306e\u7a2e\u985e<\/h2>\n<p>\u6697\u53f7\u5316\u306b\u306f\u4e3b\u306b\u6b21\u306e 2 \u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\n<p><strong>\u5bfe\u79f0\u6697\u53f7\u5316<\/strong>: \u6697\u53f7\u5316\u3068\u5fa9\u53f7\u5316\u306e\u4e21\u65b9\u306b\u540c\u3058\u30ad\u30fc\u304c\u4f7f\u7528\u3055\u308c\u308b\u6697\u53f7\u5316\u306e\u30bf\u30a4\u30d7\u3067\u3059\u3002<\/p>\n<p>\u5bfe\u79f0\u6697\u53f7\u5316\u306e\u4f8b:<\/p>\n<table>\n<thead>\n<tr>\n<th>\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0<\/th>\n<th>\u30ad\u30fc\u306e\u30b5\u30a4\u30ba<\/th>\n<th>\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba<\/th>\n<th>\u30ce\u30fc\u30c8<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>DES<\/td>\n<td>56\u30d3\u30c3\u30c8<\/td>\n<td>64\u30d3\u30c3\u30c8<\/td>\n<td>\u73fe\u5728\u3001\u307b\u3068\u3093\u3069\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u3068\u3063\u3066\u5b89\u5168\u3067\u306f\u306a\u3044\u3068\u8003\u3048\u3089\u308c\u3066\u3044\u307e\u3059<\/td>\n<\/tr>\n<tr>\n<td>3DES<\/td>\n<td>168\u30d3\u30c3\u30c8<\/td>\n<td>64\u30d3\u30c3\u30c8<\/td>\n<td>DES \u3088\u308a\u3082\u5b89\u5168\u3067\u3059\u304c\u3001\u901f\u5ea6\u304c\u9045\u3044<\/td>\n<\/tr>\n<tr>\n<td>AES<\/td>\n<td>128\/192\/256\u30d3\u30c3\u30c8<\/td>\n<td>128\u30d3\u30c3\u30c8<\/td>\n<td>\u73fe\u5728\u6700\u3082\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u5bfe\u79f0\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<li>\n<p><strong>\u975e\u5bfe\u79f0\u6697\u53f7\u5316<\/strong>: \u516c\u958b\u30ad\u30fc\u6697\u53f7\u5316\u3068\u3082\u547c\u3070\u308c\u308b\u3053\u306e\u30bf\u30a4\u30d7\u3067\u306f\u3001\u516c\u958b\u30ad\u30fc (\u6697\u53f7\u5316\u7528) \u3068\u79d8\u5bc6\u30ad\u30fc (\u5fa9\u53f7\u5316\u7528) \u306e 2 \u3064\u306e\u30ad\u30fc\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<p>\u975e\u5bfe\u79f0\u6697\u53f7\u5316\u306e\u4f8b:<\/p>\n<table>\n<thead>\n<tr>\n<th>\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0<\/th>\n<th>\u30ad\u30fc\u306e\u30b5\u30a4\u30ba<\/th>\n<th>\u30ce\u30fc\u30c8<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>RSA<\/td>\n<td>1024\/2048\/4096\u30d3\u30c3\u30c8<\/td>\n<td>\u6700\u3082\u4e00\u822c\u7684\u306b\u4f7f\u7528\u3055\u308c\u308b\u516c\u958b\u9375\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0<\/td>\n<\/tr>\n<tr>\n<td>ECC<\/td>\n<td>160-521\u30d3\u30c3\u30c8<\/td>\n<td>RSA \u3068\u540c\u3058\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u63d0\u4f9b\u3057\u307e\u3059\u304c\u3001\u30ad\u30fc \u30b5\u30a4\u30ba\u306f\u306f\u308b\u304b\u306b\u5c0f\u3055\u304f\u306a\u308a\u307e\u3059<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<\/ol>\n<h2>\u6697\u53f7\u5316\u306e\u6d3b\u7528\u3068\u8ab2\u984c\u3068\u89e3\u6c7a\u7b56<\/h2>\n<p>\u6697\u53f7\u5316\u306f\u79c1\u305f\u3061\u306e\u30c7\u30b8\u30bf\u30eb \u30e9\u30a4\u30d5\u306e\u3044\u305f\u308b\u3068\u3053\u308d\u306b\u666e\u53ca\u3057\u3066\u304a\u308a\u3001\u8ee2\u9001\u4e2d\u304a\u3088\u3073\u4fdd\u5b58\u4e2d\u306e\u30c7\u30fc\u30bf\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306e\u6a5f\u5bc6\u60c5\u5831\u3092\u4fdd\u8b77\u3057\u3001\u96fb\u5b50\u30e1\u30fc\u30eb\u901a\u4fe1\u3092\u4fdd\u8b77\u3057\u3001\u91d1\u878d\u53d6\u5f15\u306a\u3069\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001\u6697\u53f7\u5316\u306b\u306f\u554f\u984c\u304c\u306a\u3044\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30ad\u30fc\u3092\u7d1b\u5931\u3059\u308b\u3068\u6697\u53f7\u5316\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3092\u56de\u5fa9\u3067\u304d\u306a\u3044\u305f\u3081\u3001\u30ad\u30fc\u306e\u7ba1\u7406\u306f\u8ab2\u984c\u3067\u3059\u3002\u3055\u3089\u306b\u3001\u5f37\u529b\u306a\u6697\u53f7\u5316\u306f\u30ea\u30bd\u30fc\u30b9\u3092\u5927\u91cf\u306b\u6d88\u8cbb\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u4f4e\u4e0b\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u3089\u306e\u554f\u984c\u306f\u3001\u5b9a\u671f\u7684\u306a\u30ad\u30fc\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3001\u6697\u53f7\u5316\u30bf\u30b9\u30af\u306e\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2 \u30a2\u30af\u30bb\u30e9\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u4f7f\u7528\u3001\u5805\u7262\u306a\u6697\u53f7\u5316\u30dd\u30ea\u30b7\u30fc\u306e\u5b9f\u88c5\u306a\u3069\u306e\u30d9\u30b9\u30c8 \u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306b\u5f93\u3046\u3053\u3068\u3067\u89e3\u6c7a\u3055\u308c\u307e\u3059\u3002<\/p>\n<h2>\u6bd4\u8f03\u3068\u7279\u5fb4<\/h2>\n<p>\u6697\u53f7\u5316\u5bfe\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u5bfe\u30cf\u30c3\u30b7\u30e5:<\/p>\n<table>\n<thead>\n<tr>\n<th><\/th>\n<th>\u6697\u53f7\u5316<\/th>\n<th>\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0<\/th>\n<th>\u30cf\u30c3\u30b7\u30e5\u5316<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u76ee\u7684<\/td>\n<td>\u6a5f\u5bc6\u4fdd\u6301\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3<\/td>\n<td>\u30c7\u30fc\u30bf\u8868\u73fe<\/td>\n<td>\u30c7\u30fc\u30bf\u691c\u8a3c<\/td>\n<\/tr>\n<tr>\n<td>\u9375<\/td>\n<td>\u5fc5\u9808<\/td>\n<td>\u4e0d\u8981<\/td>\n<td>\u4e0d\u8981<\/td>\n<\/tr>\n<tr>\n<td>\u53ef\u9006\u6027<\/td>\n<td>\u306f\u3044\u3001\u6b63\u3057\u3044\u30ad\u30fc\u3092\u4f7f\u7528\u3057\u307e\u3059<\/td>\n<td>\u306f\u3044\u3001\u6b63\u3057\u3044\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u4f7f\u7528\u3057\u307e\u3059<\/td>\n<td>\u3044\u3044\u3048\u3001\u4e00\u65b9\u901a\u884c\u306e\u30d7\u30ed\u30bb\u30b9\u3067\u3059<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u6697\u53f7\u5316\u306b\u304a\u3051\u308b\u5c06\u6765\u306e\u5c55\u671b\u3068\u6280\u8853<\/h2>\n<p>\u6697\u53f7\u5316\u306e\u672a\u6765\u306f\u91cf\u5b50\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3068\u30dd\u30b9\u30c8\u91cf\u5b50\u6697\u53f7\u306b\u3042\u308a\u307e\u3059\u3002\u91cf\u5b50\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306f\u7406\u8ad6\u7684\u306b\u306f\u5f93\u6765\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3088\u308a\u3082\u65e9\u304f\u3053\u308c\u3089\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u89e3\u8aad\u3067\u304d\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u91cf\u5b50\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306f\u73fe\u5728\u306e\u6697\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306b\u3068\u3063\u3066\u8105\u5a01\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u306b\u5bfe\u6297\u3059\u308b\u305f\u3081\u306b\u3001\u53e4\u5178\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u3068\u91cf\u5b50\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u306e\u4e21\u65b9\u304b\u3089\u306e\u653b\u6483\u306b\u8010\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u6697\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3067\u69cb\u6210\u3055\u308c\u308b\u30dd\u30b9\u30c8\u91cf\u5b50\u6697\u53f7\u304c\u958b\u767a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u6697\u53f7\u5316\u30b5\u30fc\u30d0\u30fc\u3068\u30d7\u30ed\u30ad\u30b7\u30b5\u30fc\u30d0\u30fc<\/h2>\n<p>OneProxy \u306b\u3088\u3063\u3066\u63d0\u4f9b\u3055\u308c\u308b\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u3068\u540c\u69d8\u3001\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u30e6\u30fc\u30b6\u30fc\u3068\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u9593\u306e\u4ef2\u4ecb\u8005\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306e\u4e3b\u306a\u5f79\u5272\u306f\u6697\u53f7\u5316\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u591a\u304f\u306e\u5834\u5408\u3001\u5b89\u5168\u306a\u63a5\u7d9a\u3092\u63d0\u4f9b\u3059\u308b\u305f\u3081\u306b\u6697\u53f7\u5316\u304c\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\u3001SSL \u30d7\u30ed\u30ad\u30b7\u306f SSL \u6697\u53f7\u5316\u3092\u4f7f\u7528\u3057\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u3068\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u9593\u306e\u30c7\u30fc\u30bf\u9001\u4fe1\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u3092 VPN (\u4eee\u60f3\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8 \u30cd\u30c3\u30c8\u30ef\u30fc\u30af) \u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u7528\u3059\u308b\u3068\u3001\u30c7\u30fc\u30bf\u306e\u6697\u53f7\u5316\u3068\u30e6\u30fc\u30b6\u30fc\u306e IP \u30a2\u30c9\u30ec\u30b9\u306e\u30de\u30b9\u30af\u306e\u4e21\u65b9\u304c\u53ef\u80fd\u306b\u306a\u308a\u3001\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u5f37\u5316\u3055\u308c\u307e\u3059\u3002<\/p>\n<h2>\u95a2\u9023\u30ea\u30f3\u30af<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.nist.gov\/publications\/introduction-public-key-technology-and-federal-pki-infrastructure\" target=\"_new\" rel=\"noopener nofollow\">NIST \u306e\u516c\u958b\u9375\u6697\u53f7\u5316\u306e\u6982\u8981<\/a><\/li>\n<li><a href=\"https:\/\/www.khanacademy.org\/computing\/computer-science\/cryptography\" target=\"_new\" rel=\"noopener nofollow\">\u30ab\u30fc\u30f3\u30a2\u30ab\u30c7\u30df\u30fc\u306e\u6697\u53f7\u5316\u30b3\u30fc\u30b9<\/a><\/li>\n<li><a href=\"https:\/\/www.coursera.org\/learn\/crypto\" target=\"_new\" rel=\"noopener nofollow\">\u30b9\u30bf\u30f3\u30d5\u30a9\u30fc\u30c9\u5927\u5b66\u306e\u6697\u53f7\u30b3\u30fc\u30b9<\/a><\/li>\n<\/ul>","protected":false},"featured_media":0,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-477092","wiki","type-wiki","status-publish","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Encryption: An Essential Component of Digital Security<\/mark>","faq_items":[{"question":"What is Encryption?","answer":"<p>Encryption is the process of converting data into an unreadable format to prevent unauthorized access. It plays a crucial role in securing sensitive data from prying eyes and is widely used, from securing online transactions to maintaining confidentiality in emails and messages.<\/p>"},{"question":"When was Encryption first used?","answer":"<p>Encryption has been in use since the times of ancient Rome and Greece. One of the earliest instances of encryption is the Caesar Cipher, used by Julius Caesar to encrypt his military commands. However, in the modern digital era, encryption saw significant advancements with the introduction of symmetric-key algorithms like DES in the 1970s and asymmetric encryption with RSA later in the same decade.<\/p>"},{"question":"How does Encryption work?","answer":"<p>The encryption process involves converting plaintext (readable data) into ciphertext (unreadable data) using an encryption algorithm and a key. In symmetric encryption, the same key is used for encryption and decryption. In contrast, asymmetric encryption uses a public key for encryption and a private key for decryption.<\/p>"},{"question":"What are the key features of Encryption?","answer":"<p>The key features of encryption include confidentiality (it makes data unreadable to unauthorized individuals), integrity (it can detect if data has been tampered with during transmission), authentication (public-key encryption can verify the sender's identity), and non-repudiation (asymmetric encryption provides proof of the sender's identity).<\/p>"},{"question":"What are the types of Encryption?","answer":"<p>There are two main types of encryption: symmetric and asymmetric. Symmetric encryption uses the same key for both encryption and decryption, with DES and AES as examples. Asymmetric encryption, or public-key encryption, uses two different keys - one for encryption and another for decryption, with RSA and ECC as examples.<\/p>"},{"question":"What are some problems and solutions related to Encryption?","answer":"<p>One of the challenges with encryption is key management. If a key is lost, the encrypted data cannot be recovered. Encryption can also be resource-intensive and slow down system performance. Solutions include regular key backups, using hardware acceleration for encryption tasks, and implementing a robust encryption policy.<\/p>"},{"question":"What is the future of Encryption?","answer":"<p>The future of encryption lies in the field of quantum computing and post-quantum cryptography. Quantum computers could potentially crack current encryption algorithms faster than conventional computers. In response, post-quantum cryptography is being developed, which includes encryption algorithms resistant to both classical and quantum computer attacks.<\/p>"},{"question":"How do proxy servers relate to Encryption?","answer":"<p>While the primary role of a proxy server is not encryption, it often incorporates encryption to provide secure connections. SSL proxies use SSL encryption to secure the data transmission between the user and the proxy server. Proxy servers can also be used with VPNs to both encrypt data and mask a user's IP address, providing enhanced privacy and security.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/477092","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\/477092\/revisions"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media?parent=477092"}],"curies":[{"name":"\u3046\u30fc\u3093","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}