{"id":479218,"date":"2023-08-09T10:31:59","date_gmt":"2023-08-09T10:31:59","guid":{"rendered":""},"modified":"2023-09-05T11:18:23","modified_gmt":"2023-09-05T11:18:23","slug":"symmetric-encryption","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/jp\/wiki\/symmetric-encryption\/","title":{"rendered":"\u5bfe\u79f0\u6697\u53f7\u5316"},"content":{"rendered":"

\u5bfe\u79f0\u6697\u53f7\u5316\u306f\u3001\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u53d6\u308a\u4e0d\u53ef\u80fd\u306a\u5f62\u5f0f\u306b\u5909\u63db\u3059\u308b\u3053\u3068\u3067\u30c7\u30fc\u30bf\u3092\u4fdd\u8b77\u3057\u3001\u6a5f\u5bc6\u6027\u3068\u6574\u5408\u6027\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u57fa\u672c\u7684\u306a\u6697\u53f7\u5316\u6280\u8853\u3067\u3059\u3002\u9001\u4fe1\u8005\u3068\u53d7\u4fe1\u8005\u306e\u9593\u3067\u5171\u6709\u3055\u308c\u308b\u5358\u4e00\u306e\u79d8\u5bc6\u30ad\u30fc\u306b\u4f9d\u5b58\u3057\u3066\u3001\u60c5\u5831\u306e\u6697\u53f7\u5316\u3068\u5fa9\u53f7\u5316\u304c\u884c\u308f\u308c\u307e\u3059\u3002\u3053\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306f\u4f55\u4e16\u7d00\u306b\u3082\u308f\u305f\u3063\u3066\u4f7f\u7528\u3055\u308c\u3066\u304a\u308a\u3001\u73fe\u4ee3\u306e\u30c7\u30fc\u30bf\u4fdd\u8b77\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u7d9a\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u5bfe\u79f0\u6697\u53f7\u5316\u306e\u8d77\u6e90\u306e\u6b74\u53f2\u3068\u305d\u308c\u306b\u3064\u3044\u3066\u306e\u6700\u521d\u306e\u8a00\u53ca<\/h2>\n

\u5bfe\u79f0\u6697\u53f7\u5316\u306e\u6b74\u53f2\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u6587\u660e\u304c\u6a5f\u5bc6\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u4fdd\u8b77\u3059\u308b\u305f\u3081\u306b\u521d\u6b69\u7684\u306a\u6697\u53f7\u5316\u65b9\u5f0f\u3092\u63a1\u7528\u3057\u305f\u53e4\u4ee3\u306b\u307e\u3067\u9061\u308a\u307e\u3059\u3002\u5bfe\u79f0\u6697\u53f7\u5316\u306e\u6700\u3082\u521d\u671f\u306b\u8a18\u9332\u3055\u308c\u305f\u4f8b\u306e 1 \u3064\u306f\u3001\u8ecd\u4e8b\u901a\u4fe1\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\u30b7\u30fc\u30b6\u30fc\u6697\u53f7\u306f\u3001\u5e73\u6587\u5185\u306e\u5404\u6587\u5b57\u304c\u30a2\u30eb\u30d5\u30a1\u30d9\u30c3\u30c8\u306e\u4e0b\u306b\u4e00\u5b9a\u306e\u4f4d\u7f6e\u3060\u3051\u30b7\u30d5\u30c8\u3055\u308c\u308b\u7f6e\u63db\u6697\u53f7\u3067\u3059\u3002<\/p>\n

\u5bfe\u79f0\u6697\u53f7\u5316\u306e\u8a73\u7d30\u60c5\u5831<\/h2>\n

\u5bfe\u79f0\u6697\u53f7\u5316\u306f\u3001\u5e73\u6587\u30c7\u30fc\u30bf\u306b\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u79d8\u5bc6\u9375\u3092\u9069\u7528\u3059\u308b\u3068\u3044\u3046\u539f\u7406\u306b\u57fa\u3065\u3044\u3066\u52d5\u4f5c\u3057\u3001\u540c\u3058\u9375\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\u306e\u307f\u5143\u306e\u5f62\u5f0f\u306b\u5fa9\u53f7\u5316\u3067\u304d\u308b\u6697\u53f7\u6587\u3092\u751f\u6210\u3057\u307e\u3059\u3002\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u306b\u306f\u3001\u6697\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3001\u79d8\u5bc6\u30ad\u30fc\u3001\u5e73\u6587\u30c7\u30fc\u30bf\u3068\u3044\u3046 3 \u3064\u306e\u4e3b\u8981\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u9001\u4fe1\u8005\u304c\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u4fdd\u8b77\u3057\u305f\u3044\u5834\u5408\u3001\u6697\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u5171\u6709\u30ad\u30fc\u3092\u5e73\u6587\u306b\u9069\u7528\u3057\u3066\u6697\u53f7\u6587\u3092\u751f\u6210\u3057\u307e\u3059\u3002\u540c\u3058\u30ad\u30fc\u3092\u6240\u6709\u3057\u3066\u3044\u308b\u53d7\u4fe1\u8005\u306f\u3001\u5fa9\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u9069\u7528\u3057\u3066\u5143\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u5fa9\u5143\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u5bfe\u79f0\u6697\u53f7\u5316\u306e\u4e3b\u306a\u5229\u70b9\u306e 1 \u3064\u306f\u3001\u6bd4\u8f03\u7684\u5358\u7d14\u306a\u8a08\u7b97\u8981\u4ef6\u306b\u3088\u308a\u3001\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u3092\u52b9\u7387\u7684\u306b\u51e6\u7406\u3067\u304d\u308b\u3053\u3068\u3067\u3059\u3002\u305f\u3060\u3057\u3001\u79d8\u5bc6\u9375\u3092\u6575\u306b\u508d\u53d7\u3055\u308c\u308b\u3053\u3068\u306a\u304f\u901a\u4fe1\u5f53\u4e8b\u8005\u9593\u3067\u5b89\u5168\u306b\u914d\u5e03\u3059\u308b\u3053\u3068\u306b\u306f\u5927\u304d\u306a\u8ab2\u984c\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u5bfe\u79f0\u6697\u53f7\u5316\u306e\u5185\u90e8\u69cb\u9020\u3068\u305d\u306e\u4ed5\u7d44\u307f<\/h2>\n

\u5bfe\u79f0\u6697\u53f7\u5316\u306e\u5185\u90e8\u52d5\u4f5c\u306f\u3001\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u3084\u30b9\u30c8\u30ea\u30fc\u30e0\u6697\u53f7\u306a\u3069\u306e\u6697\u53f7\u5316\u30d7\u30ea\u30df\u30c6\u30a3\u30d6\u306b\u57fa\u3065\u3044\u3066\u3044\u307e\u3059\u3002\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306f\u5e73\u6587\u3092\u56fa\u5b9a\u30b5\u30a4\u30ba\u306e\u30d6\u30ed\u30c3\u30af\u306b\u5206\u5272\u3057\u3001\u5404\u30d6\u30ed\u30c3\u30af\u3092\u72ec\u7acb\u3057\u3066\u6697\u53f7\u5316\u3057\u307e\u3059\u304c\u3001\u30b9\u30c8\u30ea\u30fc\u30e0\u6697\u53f7\u306f\u30c7\u30fc\u30bf\u3092\u30d3\u30c3\u30c8\u3054\u3068\u307e\u305f\u306f\u30d0\u30a4\u30c8\u3054\u3068\u306b\u6697\u53f7\u5316\u3057\u307e\u3059\u3002<\/p>\n

\u6697\u53f7\u5316\u30d7\u30ed\u30bb\u30b9\u306f\u6b21\u306e\u624b\u9806\u306b\u8981\u7d04\u3067\u304d\u307e\u3059\u3002<\/p>\n

    \n
  1. \u9375\u306e\u751f\u6210<\/strong>: \u9001\u4fe1\u8005\u3068\u53d7\u4fe1\u8005\u306e\u4e21\u65b9\u304c\u79d8\u5bc6\u9375\u306b\u3064\u3044\u3066\u5408\u610f\u3057\u3001\u79d8\u5bc6\u9375\u3092\u4fdd\u6301\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n
  2. \u6697\u53f7\u5316<\/strong>: \u9001\u4fe1\u8005\u306f\u3001\u9078\u629e\u3057\u305f\u6697\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u5171\u6709\u79d8\u5bc6\u30ad\u30fc\u3092\u5e73\u6587\u306b\u9069\u7528\u3057\u3066\u3001\u6697\u53f7\u6587\u3092\u751f\u6210\u3057\u307e\u3059\u3002<\/li>\n
  3. \u5fa9\u53f7\u5316<\/strong>: \u53d7\u4fe1\u8005\u306f\u3001\u540c\u3058\u6697\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u5171\u6709\u79d8\u5bc6\u9375\u3092\u6697\u53f7\u6587\u306b\u9069\u7528\u3057\u3066\u3001\u5143\u306e\u5e73\u6587\u3092\u5fa9\u5143\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n

    \u5bfe\u79f0\u6697\u53f7\u5316\u306e\u4e3b\u8981\u306a\u6a5f\u80fd\u306e\u5206\u6790<\/h2>\n

    \u5bfe\u79f0\u6697\u53f7\u5316\u306b\u306f\u3001\u30c7\u30fc\u30bf\u3092\u4fdd\u8b77\u3059\u308b\u65b9\u6cd5\u3068\u3057\u3066\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u3044\u304f\u3064\u304b\u306e\u91cd\u8981\u306a\u6a5f\u80fd\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

      \n
    1. \u30b9\u30d4\u30fc\u30c9<\/strong>: \u5bfe\u79f0\u6697\u53f7\u5316\u306f\u3001\u5358\u7d14\u306a\u6570\u5b66\u7684\u6f14\u7b97\u306b\u3088\u308a\u3001\u4e00\u822c\u306b\u975e\u5bfe\u79f0\u6697\u53f7\u5316\u3088\u308a\u3082\u9ad8\u901f\u3067\u3059\u3002<\/li>\n
    2. \u5b89\u5168<\/strong>: \u5bfe\u79f0\u6697\u53f7\u5316\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306f\u3001\u79d8\u5bc6\u30ad\u30fc\u306e\u5f37\u5ea6\u306b\u5927\u304d\u304f\u4f9d\u5b58\u3057\u307e\u3059\u3002\u30ad\u30fc\u306e\u9577\u3055\u3092\u9577\u304f\u3059\u308b\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306f\u5f37\u5316\u3055\u308c\u307e\u3059\u304c\u3001\u51e6\u7406\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u304c\u5897\u52a0\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n
    3. \u6a5f\u5bc6\u4fdd\u6301<\/strong>: \u6a29\u9650\u306e\u306a\u3044\u500b\u4eba\u304c\u3001\u6b63\u3057\u3044\u30ad\u30fc\u304c\u306a\u3051\u308c\u3070\u6697\u53f7\u5316\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u53d6\u308b\u3053\u3068\u304c\u3067\u304d\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/li>\n
    4. \u8aa0\u5b9f\u3055<\/strong>: \u5bfe\u79f0\u6697\u53f7\u5316\u306f\u3001\u9001\u4fe1\u4e2d\u306b\u30c7\u30fc\u30bf\u304c\u6539\u3056\u3093\u3055\u308c\u305f\u304b\u3069\u3046\u304b\u3092\u691c\u51fa\u3057\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/li>\n
    5. \u4e92\u63db\u6027<\/strong>: \u591a\u304f\u306e\u6697\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u304c\u6a19\u6e96\u5316\u3055\u308c\u3066\u304a\u308a\u3001\u3055\u307e\u3056\u307e\u306a\u30b7\u30b9\u30c6\u30e0\u9593\u3067\u306e\u4e92\u63db\u6027\u304c\u78ba\u4fdd\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/ol>\n

      \u5bfe\u79f0\u6697\u53f7\u5316\u306e\u7a2e\u985e<\/h2>\n

      \u5bfe\u79f0\u6697\u53f7\u5316\u306b\u306f\u3055\u307e\u3056\u307e\u306a\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u304c\u542b\u307e\u308c\u3066\u304a\u308a\u3001\u305d\u308c\u305e\u308c\u306b\u72ec\u81ea\u306e\u9577\u6240\u3068\u77ed\u6240\u304c\u3042\u308a\u307e\u3059\u3002\u4e00\u822c\u7684\u306a\u30bf\u30a4\u30d7\u3092\u3044\u304f\u3064\u304b\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n\n\n\n\n\n\n\n
      \u30bf\u30a4\u30d7<\/th>\n\u8aac\u660e<\/th>\n<\/tr>\n<\/thead>\n
      \u9ad8\u5ea6\u6697\u53f7\u5316\u6a19\u6e96 (AES)<\/td>\n\u30ad\u30fc \u30b5\u30a4\u30ba\u304c 128\u3001192\u3001\u307e\u305f\u306f 256 \u30d3\u30c3\u30c8\u306e\u3001\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u3002<\/td>\n<\/tr>\n
      \u30c7\u30fc\u30bf\u6697\u53f7\u5316\u6a19\u6e96 (DES)<\/td>\n\u30ad\u30fc \u30b5\u30a4\u30ba\u304c 56 \u30d3\u30c3\u30c8\u306e\u53e4\u3044\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u3067\u3001\u73fe\u5728\u306f\u5b89\u5168\u6027\u304c\u4f4e\u3044\u3068\u8003\u3048\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/td>\n<\/tr>\n
      \u30c8\u30ea\u30d7\u30eb DES (3DES)<\/td>\nDES \u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092 3 \u56de\u9069\u7528\u3059\u308b\u3001\u3088\u308a\u5b89\u5168\u306a DES \u306e\u30d0\u30ea\u30a2\u30f3\u30c8\u3002<\/td>\n<\/tr>\n
      \u30ea\u30d9\u30b9\u30c8\u6697\u53f7(RC)<\/td>\nRC4 \u304a\u3088\u3073 RC5 \u3092\u542b\u3080\u30b9\u30c8\u30ea\u30fc\u30e0\u6697\u53f7\u306e\u30d5\u30a1\u30df\u30ea\u30fc\u3002<\/td>\n<\/tr>\n
      \u3075\u3050<\/td>\n\u53ef\u5909\u30ad\u30fc\u30b5\u30a4\u30ba\u3092\u5099\u3048\u305f\u9ad8\u901f\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u3002<\/td>\n<\/tr>\n
      \u30c8\u30a5\u30fc\u30d5\u30a3\u30c3\u30b7\u30e5<\/td>\n\u67d4\u8edf\u6027\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3067\u77e5\u3089\u308c\u308b AES \u30d5\u30a1\u30a4\u30ca\u30ea\u30b9\u30c8\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \u5bfe\u79f0\u6697\u53f7\u5316\u306e\u4f7f\u7528\u65b9\u6cd5\u3001\u4f7f\u7528\u306b\u95a2\u9023\u3059\u308b\u554f\u984c\u3068\u305d\u306e\u89e3\u6c7a\u7b56<\/h2>\n

      \u5bfe\u79f0\u6697\u53f7\u5316\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u3055\u307e\u3056\u307e\u306a\u5206\u91ce\u3067\u5fdc\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

        \n
      1. \u5b89\u5168\u306a\u901a\u4fe1<\/strong>: \u96fb\u5b50\u30e1\u30fc\u30eb\u306e\u6697\u53f7\u5316\u3084\u4eee\u60f3\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8 \u30cd\u30c3\u30c8\u30ef\u30fc\u30af (VPN) \u306a\u3069\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7d4c\u7531\u3067\u306e\u9001\u4fe1\u4e2d\u306b\u6a5f\u5bc6\u30c7\u30fc\u30bf\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002<\/li>\n
      2. \u30c7\u30fc\u30bf\u30b9\u30c8\u30ec\u30fc\u30b8<\/strong>: \u30ed\u30fc\u30ab\u30eb \u30b9\u30c8\u30ec\u30fc\u30b8\u307e\u305f\u306f\u30af\u30e9\u30a6\u30c9\u4e0a\u306e\u30d5\u30a1\u30a4\u30eb\u3068\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u304b\u3089\u4fdd\u8b77\u3057\u307e\u3059\u3002<\/li>\n
      3. \u8a8d\u8a3c<\/strong>: \u6697\u53f7\u5316\u3055\u308c\u305f\u8a8d\u8a3c\u30c8\u30fc\u30af\u30f3\u3092\u901a\u3058\u3066\u30e6\u30fc\u30b6\u30fc\u307e\u305f\u306f\u30c7\u30d0\u30a4\u30b9\u306e ID \u3092\u691c\u8a3c\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n

        \u305f\u3060\u3057\u3001\u5bfe\u79f0\u6697\u53f7\u5316\u306e\u4f7f\u7528\u306b\u306f\u6b21\u306e\u3088\u3046\u306a\u8ab2\u984c\u304c\u4f34\u3044\u307e\u3059\u3002<\/p>\n

          \n
        1. \u9375\u306e\u7ba1\u7406<\/strong>: \u79d8\u5bc6\u30ad\u30fc\u306e\u5b89\u5168\u306a\u914d\u5e03\u3068\u4fdd\u7ba1\u306f\u3001\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u3092\u9632\u3050\u305f\u3081\u306b\u91cd\u8981\u3067\u3059\u3002<\/li>\n
        2. \u9375\u4ea4\u63db<\/strong>: \u5b89\u5168\u306a\u30ad\u30fc\u4ea4\u63db\u30e1\u30ab\u30cb\u30ba\u30e0\u306e\u78ba\u7acb\u306f\u3001\u7279\u306b\u5927\u898f\u6a21\u306a\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u8907\u96d1\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n
        3. \u30ad\u30fc\u306e\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3<\/strong>: \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5f37\u5316\u3059\u308b\u306b\u306f\u30ad\u30fc\u3092\u5b9a\u671f\u7684\u306b\u5909\u66f4\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u7d99\u7d9a\u7684\u306a\u901a\u4fe1\u304c\u4e2d\u65ad\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ol>\n

          \u3053\u308c\u3089\u306e\u554f\u984c\u306b\u5bfe\u51e6\u3059\u308b\u305f\u3081\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3068\u3057\u3066\u306f\u3001\u5b89\u5168\u306a\u30ad\u30fc\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\u306e\u63a1\u7528\u3001\u5f37\u529b\u306a\u30ad\u30fc\u751f\u6210\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u4f7f\u7528\u3001\u9069\u5207\u306a\u30ad\u30fc\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u624b\u9806\u306e\u5b9f\u88c5\u306a\u3069\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

          \u4e3b\u306a\u7279\u5fb4\u3068\u985e\u4f3c\u7528\u8a9e\u3068\u306e\u6bd4\u8f03<\/h2>\n\n\n\n\n\n\n\n\n\n
          \u5b66\u671f<\/th>\n\u8aac\u660e<\/th>\n<\/tr>\n<\/thead>\n
          \u5bfe\u79f0\u6697\u53f7\u5316<\/td>\n\u6697\u53f7\u5316\u3068\u5fa9\u53f7\u5316\u306b\u5358\u4e00\u306e\u5171\u6709\u30ad\u30fc\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n
          \u975e\u5bfe\u79f0\u6697\u53f7\u5316<\/td>\n\u6697\u53f7\u5316\u3068\u5fa9\u53f7\u5316\u306b 1 \u5bfe\u306e\u30ad\u30fc (\u516c\u958b\u30ad\u30fc\u3068\u79d8\u5bc6\u30ad\u30fc) \u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n
          \u6697\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0<\/td>\n\u30c7\u30fc\u30bf\u306e\u6697\u53f7\u5316\u3068\u5fa9\u53f7\u5316\u306b\u4f7f\u7528\u3055\u308c\u308b\u6570\u5b66\u7684\u30d7\u30ed\u30bb\u30b9\u3002<\/td>\n<\/tr>\n
          \u6697\u53f7\u6587<\/td>\n\u30c7\u30fc\u30bf\u306e\u6697\u53f7\u5316\u3055\u308c\u305f\u5f62\u5f0f\u3002<\/td>\n<\/tr>\n
          \u30d7\u30ec\u30fc\u30f3\u30c6\u30ad\u30b9\u30c8<\/td>\n\u5143\u306e\u6697\u53f7\u5316\u3055\u308c\u3066\u3044\u306a\u3044\u30c7\u30fc\u30bf\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          \u5bfe\u79f0\u6697\u53f7\u5316\u306b\u95a2\u3059\u308b\u5c06\u6765\u306e\u5c55\u671b\u3068\u6280\u8853<\/h2>\n

          \u5bfe\u79f0\u6697\u53f7\u5316\u306e\u5c06\u6765\u306f\u3001\u9375\u7ba1\u7406\u3001\u914d\u5e03\u3001\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u6280\u8853\u306b\u91cd\u70b9\u3092\u7f6e\u3044\u305f\u5805\u7262\u306a\u6697\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u7d99\u7d9a\u7684\u306a\u958b\u767a\u306b\u304b\u304b\u3063\u3066\u3044\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u91cf\u5b50\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u9032\u6b69\u306f\u5f93\u6765\u306e\u5bfe\u79f0\u6697\u53f7\u5316\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u3001\u8010\u91cf\u5b50\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u7814\u7a76\u304c\u4fc3\u9032\u3055\u308c\u307e\u3059\u3002<\/p>\n

          \u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u3092\u4f7f\u7528\u3059\u308b\u65b9\u6cd5\u3001\u307e\u305f\u306f\u5bfe\u79f0\u6697\u53f7\u5316\u306b\u95a2\u9023\u4ed8\u3051\u308b\u65b9\u6cd5<\/h2>\n

          \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\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3092\u5f37\u5316\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u3001\u3044\u304f\u3064\u304b\u306e\u65b9\u6cd5\u3067\u5bfe\u79f0\u6697\u53f7\u5316\u306b\u95a2\u9023\u4ed8\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

            \n
          1. \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u6697\u53f7\u5316<\/strong>: \u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u5bfe\u79f0\u6697\u53f7\u5316\u3092\u4f7f\u7528\u3057\u3066\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u9593\u306e\u30c7\u30fc\u30bf\u3092\u4fdd\u8b77\u3057\u3001\u4fdd\u8b77\u5c64\u3092\u8ffd\u52a0\u3067\u304d\u307e\u3059\u3002<\/li>\n
          2. \u30a2\u30af\u30bb\u30b9\u5236\u5fa1<\/strong>: \u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u53d7\u4fe1\u63a5\u7d9a\u3068\u9001\u4fe1\u63a5\u7d9a\u306b\u5bfe\u79f0\u6697\u53f7\u5316\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u9069\u7528\u3057\u3066\u3001\u5b89\u5168\u306a\u901a\u4fe1\u30c1\u30e3\u30cd\u30eb\u3092\u78ba\u4fdd\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ol>\n

            \u95a2\u9023\u30ea\u30f3\u30af<\/h2>\n

            \u5bfe\u79f0\u6697\u53f7\u5316\u3068\u95a2\u9023\u30c8\u30d4\u30c3\u30af\u306e\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001\u6b21\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

              \n
            1. \u7c73\u56fd\u56fd\u7acb\u6a19\u6e96\u6280\u8853\u7814\u7a76\u6240 (NIST) \u2013 \u6697\u53f7\u5316\u306e\u6a19\u6e96\u5316<\/a><\/li>\n
            2. \u56fd\u969b\u6697\u53f7\u7814\u7a76\u5354\u4f1a (IACR)<\/a><\/li>\n
            3. \u6697\u53f7 101: \u5bfe\u79f0\u6697\u53f7\u5316<\/a><\/li>\n<\/ol>\n

              \u7d50\u8ad6\u3068\u3057\u3066\u3001\u5bfe\u79f0\u6697\u53f7\u5316\u306f\u4f9d\u7136\u3068\u3057\u3066\u73fe\u4ee3\u306e\u30c7\u30fc\u30bf \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u91cd\u8981\u306a\u67f1\u3067\u3042\u308a\u3001\u901f\u5ea6\u3001\u52b9\u7387\u3001\u6a5f\u5bc6\u6027\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u305d\u306e\u5185\u90e8\u306e\u4ed5\u7d44\u307f\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u500b\u4eba\u3084\u7d44\u7e54\u306f\u30c7\u30b8\u30bf\u30eb\u5316\u304c\u9032\u3080\u4e16\u754c\u3067\u6a5f\u5bc6\u60c5\u5831\u3092\u78ba\u5b9f\u306b\u4fdd\u8b77\u3067\u304d\u307e\u3059\u3002<\/p>","protected":false},"featured_media":470633,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-479218","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about Symmetric Encryption: Safeguarding Data with Shared Secrets<\/mark>","faq_items":[{"question":"What is symmetric encryption?<\/strong>","answer":"

              Symmetric encryption is a cryptographic technique that uses a single shared secret key to both encrypt and decrypt data. It ensures confidentiality and integrity by converting plaintext into unreadable ciphertext, and vice versa, using the same key.<\/p>"},{"question":"Where did symmetric encryption originate, and when was it first mentioned?<\/strong>","answer":"

              The origins of symmetric encryption date back to ancient times. One of the earliest recorded instances is the Caesar cipher, used by Julius Caesar for military communications. This substitution cipher shifted each letter in the plaintext by a fixed number of positions down the alphabet.<\/p>"},{"question":"How does symmetric encryption work?<\/strong>","answer":"

              Symmetric encryption involves three main components: the encryption algorithm, the secret key, and the plaintext data. The sender applies the algorithm and shared key to the plaintext, producing ciphertext. The receiver, in possession of the same key, decrypts the ciphertext back to the original plaintext.<\/p>"},{"question":"What are the key features of symmetric encryption?<\/strong>","answer":"

              Symmetric encryption boasts several key features, including speed, security (dependent on the strength of the secret key), confidentiality, integrity, and compatibility with standardized algorithms.<\/p>"},{"question":"What types of symmetric encryption exist?<\/strong>","answer":"

              Various types of symmetric encryption algorithms are available, such as:<\/p>

              • Advanced Encryption Standard (AES)<\/li>
              • Data Encryption Standard (DES)<\/li>
              • Triple DES (3DES)<\/li>
              • Rivest Cipher (RC)<\/li>
              • Blowfish<\/li>
              • Twofish<\/li><\/ul>"},{"question":"Where can symmetric encryption be used, and what challenges does it present?<\/strong>","answer":"

                Symmetric encryption finds applications in secure communication, data storage, and authentication. However, challenges include key management, key exchange, and key rotation to maintain security.<\/p>"},{"question":"How does symmetric encryption compare with asymmetric encryption?<\/strong>","answer":"

                Symmetric encryption uses a shared secret key for both encryption and decryption, while asymmetric encryption relies on a pair of keys (public and private). Symmetric encryption is generally faster, but key management can be more challenging.<\/p>"},{"question":"What are the future perspectives of symmetric encryption?<\/strong>","answer":"

                The future of symmetric encryption lies in the development of robust encryption algorithms with a focus on key management and quantum-resistant techniques in the face of evolving technology.<\/p>"},{"question":"How are proxy servers related to symmetric encryption?<\/strong>","answer":"

                Proxy servers can use symmetric encryption to enhance security and privacy by securing data between clients and the server and enforcing secure communication protocols.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/479218","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\/479218\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media\/470633"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media?parent=479218"}],"curies":[{"name":"\u3046\u30fc\u3093","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}