{"id":476058,"date":"2023-08-09T07:25:33","date_gmt":"2023-08-09T07:25:33","guid":{"rendered":""},"modified":"2023-09-05T11:11:57","modified_gmt":"2023-09-05T11:11:57","slug":"block-cipher","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/jp\/wiki\/block-cipher\/","title":{"rendered":"\u30d6\u30ed\u30c3\u30af\u6697\u53f7"},"content":{"rendered":"

\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306f\u3001\u901a\u5e38\u3001\u56fa\u5b9a\u6570\u306e\u30d3\u30c3\u30c8\u3067\u69cb\u6210\u3055\u308c\u308b\u56fa\u5b9a\u30b5\u30a4\u30ba\u306e\u30d6\u30ed\u30c3\u30af\u3067\u30c7\u30fc\u30bf\u3092\u6697\u53f7\u5316\u304a\u3088\u3073\u5fa9\u53f7\u5316\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u6697\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3067\u3059\u3002\u30c7\u30b8\u30bf\u30eb\u901a\u4fe1\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u78ba\u4fdd\u3057\u3001\u6a5f\u5bc6\u60c5\u5831\u306e\u6a5f\u5bc6\u6027\u3001\u6574\u5408\u6027\u3001\u304a\u3088\u3073\u4fe1\u983c\u6027\u3092\u4fdd\u8a3c\u3059\u308b\u4e0a\u3067\u57fa\u672c\u7684\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306f\u3001\u5b89\u5168\u306a\u901a\u4fe1\u30c1\u30e3\u30cd\u30eb\u3001\u30c7\u30fc\u30bf \u30b9\u30c8\u30ec\u30fc\u30b8\u306e\u6697\u53f7\u5316\u3001\u8a8d\u8a3c\u30d7\u30ed\u30c8\u30b3\u30eb\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306e\u8d77\u6e90\u3068\u305d\u306e\u6700\u521d\u306e\u8a00\u53ca\u306e\u6b74\u53f2\u3002<\/h2>\n

\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306e\u8d77\u6e90\u306f\u3001\u6697\u53f7\u306e\u521d\u671f\u306e\u6642\u4ee3\u306b\u307e\u3067\u9061\u308a\u307e\u3059\u3002\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306e\u6700\u3082\u53e4\u3044\u4f8b\u3068\u3057\u3066\u306f\u3001\u30b8\u30e5\u30ea\u30a2\u30b9 \u30b7\u30fc\u30b6\u30fc\u306b\u7531\u6765\u3059\u308b\u30b7\u30fc\u30b6\u30fc\u6697\u53f7\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u6697\u53f7\u3067\u306f\u3001\u5e73\u6587\u306e\u5404\u6587\u5b57\u304c\u30a2\u30eb\u30d5\u30a1\u30d9\u30c3\u30c8\u306e\u4e00\u5b9a\u6570\u306e\u4f4d\u7f6e\u3060\u3051\u30b7\u30d5\u30c8\u3055\u308c\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u4eca\u65e5\u77e5\u3089\u308c\u3066\u3044\u308b\u3088\u3046\u306a\u73fe\u4ee3\u306e\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306f\u3001\u30c9\u30a4\u30c4\u306e\u30a8\u30cb\u30b0\u30de\u6697\u53f7\u6a5f\u306e\u958b\u767a\u3068\u3001\u305d\u306e\u6697\u53f7\u3092\u89e3\u8aad\u3057\u3088\u3046\u3068\u3059\u308b\u30a4\u30ae\u30ea\u30b9\u306e\u52aa\u529b\u306b\u3088\u308a\u3001\u7b2c\u4e8c\u6b21\u4e16\u754c\u5927\u6226\u4e2d\u306b\u51fa\u73fe\u3057\u59cb\u3081\u307e\u3057\u305f\u3002<\/p>\n

\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306b\u95a2\u3059\u308b\u8a73\u7d30\u60c5\u5831\u3002\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306e\u30c8\u30d4\u30c3\u30af\u3092\u62e1\u5f35\u3057\u307e\u3059\u3002<\/h2>\n

\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306f\u56fa\u5b9a\u30b5\u30a4\u30ba\u306e\u30c7\u30fc\u30bf \u30d6\u30ed\u30c3\u30af\u306b\u5bfe\u3057\u3066\u52d5\u4f5c\u3057\u3001\u79d8\u5bc6\u306e\u6697\u53f7\u5316\u30ad\u30fc\u3092\u4f7f\u7528\u3057\u3066\u5e73\u6587\u3092\u6697\u53f7\u6587\u306b\u5909\u63db\u3057\u305f\u308a\u3001\u6697\u53f7\u6587\u3092\u5e73\u6587\u306b\u5909\u63db\u3057\u305f\u308a\u3057\u307e\u3059\u3002\u6697\u53f7\u5316\u30d7\u30ed\u30bb\u30b9\u306b\u306f\u3001Feistel \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u547c\u3070\u308c\u308b\u8907\u6570\u306e\u7f6e\u63db\u304a\u3088\u3073\u9806\u5217\u30e9\u30a6\u30f3\u30c9\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u5404\u30e9\u30a6\u30f3\u30c9\u3067\u306f\u3001\u5e73\u6587 (\u30cf\u30fc\u30d5 \u30d6\u30ed\u30c3\u30af) \u306e\u4e00\u90e8\u304c\u53d6\u308a\u51fa\u3055\u308c\u3001\u6697\u53f7\u5316\u30ad\u30fc\u3092\u4f7f\u7528\u3057\u3066\u7279\u5b9a\u306e\u5909\u63db\u304c\u9069\u7528\u3055\u308c\u3001\u305d\u306e\u5f8c\u306e\u30e9\u30a6\u30f3\u30c9\u3067\u305d\u306e\u7d50\u679c\u304c\u5e73\u6587\u306e\u4ed6\u306e\u90e8\u5206\u3068\u7d50\u5408\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u306f\u8907\u6570\u56de (\u901a\u5e38 10 \uff5e 16 \u30e9\u30a6\u30f3\u30c9) \u7e70\u308a\u8fd4\u3055\u308c\u3001\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u5f37\u5316\u3055\u308c\u307e\u3059\u3002<\/p>\n

\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306e\u5185\u90e8\u69cb\u9020\u3002\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306e\u4ed5\u7d44\u307f\u3002<\/h2>\n

\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306e\u5185\u90e8\u69cb\u9020\u306f\u3001\u76f8\u4e92\u306b\u63a5\u7d9a\u3055\u308c\u305f\u4e00\u9023\u306e\u69cb\u6210\u8981\u7d20\u3068\u3057\u3066\u8996\u899a\u5316\u3067\u304d\u307e\u3059\u3002<\/p>\n

    \n
  1. \n

    \u7f6e\u63db\u9806\u5217\u30cd\u30c3\u30c8\u30ef\u30fc\u30af (SPN)<\/strong>: \u5165\u529b\u30d3\u30c3\u30c8\u3092\u7279\u5b9a\u306e\u51fa\u529b\u30d3\u30c3\u30c8\u306b\u7f6e\u304d\u63db\u3048\u308b\u7f6e\u63db\u30dc\u30c3\u30af\u30b9 (S \u30dc\u30c3\u30af\u30b9) \u3068\u3001\u30d3\u30c3\u30c8\u3092\u4e26\u3079\u66ff\u3048\u308b\u9806\u5217\u30dc\u30c3\u30af\u30b9 (P \u30dc\u30c3\u30af\u30b9) \u3067\u69cb\u6210\u3055\u308c\u308b\u57fa\u672c\u7684\u306a\u69cb\u6210\u8981\u7d20\u3002<\/p>\n<\/li>\n

  2. \n

    \u30d5\u30a1\u30a4\u30b9\u30c6\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af<\/strong>: Feistel \u30e9\u30a6\u30f3\u30c9\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u57fa\u3065\u304f\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306e\u4e00\u822c\u7684\u306a\u8a2d\u8a08\u3002\u5404\u30e9\u30a6\u30f3\u30c9\u306f SPN \u69cb\u9020\u3092\u9069\u7528\u3057\u3001\u305d\u306e\u7d50\u679c\u306f\u30d6\u30ed\u30c3\u30af\u306e\u6b8b\u308a\u306e\u534a\u5206\u3068\u6df7\u5408\u3055\u308c\u3066\u304b\u3089\u6b21\u306e\u30e9\u30a6\u30f3\u30c9\u306b\u9032\u307f\u307e\u3059\u3002<\/p>\n<\/li>\n

  3. \n

    \u4e3b\u8981\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb<\/strong>\u30e1\u30a4\u30f3\u306e\u6697\u53f7\u5316\u30ad\u30fc\u304b\u3089\u30e9\u30a6\u30f3\u30c9 \u30ad\u30fc\u3092\u751f\u6210\u3059\u308b\u30d7\u30ed\u30bb\u30b9\u3002\u3053\u308c\u3089\u306e\u30e9\u30a6\u30f3\u30c9 \u30ad\u30fc\u306f\u3001\u6697\u53f7\u306e\u5404\u30e9\u30a6\u30f3\u30c9\u3067\u4f7f\u7528\u3055\u308c\u3001\u591a\u69d8\u6027\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u78ba\u4fdd\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n

    \u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306e\u4e3b\u306a\u7279\u5fb4\u306e\u5206\u6790\u3002<\/h2>\n

    \u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306b\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u6697\u53f7\u5316\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u9069\u3057\u305f\u3044\u304f\u3064\u304b\u306e\u91cd\u8981\u306a\u6a5f\u80fd\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

      \n
    1. \n

      \u6a5f\u5bc6\u4fdd\u6301<\/strong>\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306f\u5f37\u529b\u306a\u6697\u53f7\u5316\u3092\u63d0\u4f9b\u3057\u3001\u9069\u5207\u306a\u6697\u53f7\u5316\u30ad\u30fc\u304c\u306a\u3051\u308c\u3070\u6a29\u9650\u306e\u306a\u3044\u500b\u4eba\u304c\u5143\u306e\u30c7\u30fc\u30bf\u3092\u89e3\u8aad\u3067\u304d\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n

    2. \n

      \u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027<\/strong>: \u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306f\u3001\u30c7\u30fc\u30bf\u3092\u56fa\u5b9a\u30b5\u30a4\u30ba\u306e\u30d6\u30ed\u30c3\u30af\u3067\u6697\u53f7\u5316\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u9001\u4fe1\u4e2d\u307e\u305f\u306f\u4fdd\u5b58\u4e2d\u306b\u6697\u53f7\u6587\u306b\u52a0\u3048\u3089\u308c\u305f\u4e0d\u6b63\u306a\u5909\u66f4\u3092\u691c\u51fa\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n

    3. \n

      \u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba<\/strong>: \u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306f\u3001\u901a\u5e38 64 \uff5e 256 \u30d3\u30c3\u30c8\u306e\u56fa\u5b9a\u30b5\u30a4\u30ba\u306e\u30d6\u30ed\u30c3\u30af\u3067\u52d5\u4f5c\u3057\u307e\u3059\u3002\u30d6\u30ed\u30c3\u30af \u30b5\u30a4\u30ba\u304c\u5927\u304d\u3044\u307b\u3069\u6697\u53f7\u306f\u5b89\u5168\u306b\u306a\u308a\u307e\u3059\u304c\u3001\u8a08\u7b97\u306e\u8907\u96d1\u3055\u3082\u5897\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n

    4. \n

      \u30ad\u30fc\u306e\u30b5\u30a4\u30ba<\/strong>: \u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306f\u3001\u6697\u53f7\u5316\u30ad\u30fc\u306e\u30b5\u30a4\u30ba\u306b\u5927\u304d\u304f\u4f9d\u5b58\u3057\u307e\u3059\u3002\u30ad\u30fc\u306e\u9577\u3055\u304c\u9577\u3044\u307b\u3069\u3001\u30d6\u30eb\u30fc\u30c8\u30d5\u30a9\u30fc\u30b9\u653b\u6483\u306b\u5bfe\u3059\u308b\u8010\u6027\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n

    5. \n

      \u30b9\u30d4\u30fc\u30c9<\/strong>: \u52b9\u7387\u7684\u306a\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306f\u3001\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0 \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3084\u9ad8\u901f\u30c7\u30fc\u30bf\u6697\u53f7\u5316\/\u5fa9\u53f7\u5316\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n

      \u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306e\u7a2e\u985e<\/h2>\n

      \u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306b\u306f\u3055\u307e\u3056\u307e\u306a\u7a2e\u985e\u304c\u3042\u308a\u3001\u305d\u308c\u305e\u308c\u306b\u56fa\u6709\u306e\u7279\u6027\u3068\u7528\u9014\u304c\u3042\u308a\u307e\u3059\u3002\u6ce8\u76ee\u3059\u3079\u304d\u7a2e\u985e\u306b\u306f\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n\n\n\n\n
      \u30bf\u30a4\u30d7<\/th>\n\u4f8b<\/th>\n\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba<\/th>\n\u30ad\u30fc\u306e\u30b5\u30a4\u30ba<\/th>\n\u4f7f\u7528\u6cd5<\/th>\n<\/tr>\n<\/thead>\n
      \u30d5\u30a1\u30a4\u30b9\u30c6\u30eb\u6697\u53f7<\/strong><\/td>\nDES\u30013DES (TDEA)<\/td>\n64\u30d3\u30c3\u30c8<\/td>\n56\/112\/168 \u30d3\u30c3\u30c8<\/td>\n\u5b89\u5168\u306a\u901a\u4fe1\u3001\u30ec\u30ac\u30b7\u30fc\u30b7\u30b9\u30c6\u30e0<\/td>\n<\/tr>\n
      SP\u30cd\u30c3\u30c8\u30ef\u30fc\u30af<\/strong><\/td>\nAES (\u30e9\u30a4\u30f3\u30c0\u30fc\u30eb)\u3001\u30ab\u30e1\u30ea\u30a2<\/td>\n128\/256\u30d3\u30c3\u30c8<\/td>\n128\/192\/256\u30d3\u30c3\u30c8<\/td>\n\u5e45\u5e83\u3044\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3001\u6700\u65b0\u306e\u30b7\u30b9\u30c6\u30e0<\/td>\n<\/tr>\n
      \u7f6e\u63db\u9806\u5217\u30cd\u30c3\u30c8\u30ef\u30fc\u30af (SPN)<\/strong><\/td>\n\u30d5\u30b0\u3001\u30c8\u30a5\u30fc\u30d5\u30a3\u30c3\u30b7\u30e5<\/td>\n64\/128\/256 \u30d3\u30c3\u30c8<\/td>\n\u6700\u5927448\u30d3\u30c3\u30c8<\/td>\n\u30c7\u30fc\u30bf\u306e\u6697\u53f7\u5316\u3001\u5b89\u5168\u306a\u4fdd\u7ba1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306e\u4f7f\u7528\u65b9\u6cd5\u3001\u4f7f\u7528\u306b\u95a2\u9023\u3059\u308b\u554f\u984c\u3068\u305d\u306e\u89e3\u6c7a\u7b56\u3002<\/h2>\n

      \u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306f\u3001\u73fe\u4ee3\u306e\u6697\u53f7\u5316\u306e\u3055\u307e\u3056\u307e\u306a\u5206\u91ce\u3067\u5fdc\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

        \n
      1. \n

        \u5b89\u5168\u306a\u901a\u4fe1<\/strong>\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306f\u3001\u9001\u4fe1\u524d\u306b\u30c7\u30fc\u30bf\u3092\u6697\u53f7\u5316\u3057\u3001\u53d7\u4fe1\u5074\u3067\u5fa9\u53f7\u5316\u3059\u308b\u3053\u3068\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7d4c\u7531\u3067\u9001\u4fe1\u3055\u308c\u308b\u6a5f\u5bc6\u60c5\u5831\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n

      2. \n

        \u30c7\u30fc\u30bf\u6697\u53f7\u5316<\/strong>: \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3001\u30cf\u30fc\u30c9\u30c9\u30e9\u30a4\u30d6\u3001\u307e\u305f\u306f\u30af\u30e9\u30a6\u30c9 \u30b9\u30c8\u30ec\u30fc\u30b8\u306b\u4fdd\u5b58\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3092\u4fdd\u8b77\u3057\u3001\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u304b\u3089\u4fdd\u8b77\u3057\u307e\u3059\u3002<\/p>\n<\/li>\n

      3. \n

        \u30c7\u30b8\u30bf\u30eb\u7f72\u540d<\/strong>\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306f\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u4fe1\u983c\u6027\u3068\u6574\u5408\u6027\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u30c7\u30b8\u30bf\u30eb\u7f72\u540d\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3067\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/li>\n

      4. \n

        \u6697\u53f7\u30cf\u30c3\u30b7\u30e5\u95a2\u6570<\/strong>\u4e00\u90e8\u306e\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306f\u3001\u56fa\u5b9a\u30b5\u30a4\u30ba\u306e\u30e1\u30c3\u30bb\u30fc\u30b8 \u30c0\u30a4\u30b8\u30a7\u30b9\u30c8\u3092\u751f\u6210\u3059\u308b\u305f\u3081\u306e\u6697\u53f7\u30cf\u30c3\u30b7\u30e5\u95a2\u6570\u306b\u9069\u5fdc\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n

        \u305f\u3060\u3057\u3001\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306e\u4f7f\u7528\u306b\u306f\u6f5c\u5728\u7684\u306a\u8ab2\u984c\u304c\u4f34\u3044\u307e\u3059\u3002<\/p>\n

          \n
        1. \n

          \u9375\u306e\u7ba1\u7406<\/strong>: \u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u7dad\u6301\u3059\u308b\u306b\u306f\u3001\u9069\u5207\u306a\u30ad\u30fc\u7ba1\u7406\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u30ad\u30fc\u3092\u5b89\u5168\u306b\u4fdd\u5b58\u304a\u3088\u3073\u914d\u5e03\u3059\u308b\u3053\u3068\u306f\u56f0\u96e3\u306a\u4f5c\u696d\u3067\u3059\u3002<\/p>\n<\/li>\n

        2. \n

          \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5f37\u5ea6<\/strong>: \u6697\u53f7\u89e3\u8aad\u306e\u9032\u6b69\u306b\u3088\u308a\u3001\u53e4\u3044\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306f\u8106\u5f31\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3088\u308a\u5f37\u529b\u306a\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306b\u5b9a\u671f\u7684\u306b\u66f4\u65b0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n

        3. \n

          \u52d5\u4f5c\u30e2\u30fc\u30c9<\/strong>: \u30d6\u30ed\u30c3\u30af\u6697\u53f7\u3067\u306f\u3001\u30d6\u30ed\u30c3\u30af \u30b5\u30a4\u30ba\u3088\u308a\u5927\u304d\u3044\u30c7\u30fc\u30bf\u3092\u6697\u53f7\u5316\u3059\u308b\u305f\u3081\u306b\u3001\u96fb\u5b50\u30b3\u30fc\u30c9\u30d6\u30c3\u30af (ECB) \u3084\u6697\u53f7\u30d6\u30ed\u30c3\u30af\u9023\u9396 (CBC) \u306a\u3069\u306e\u52d5\u4f5c\u30e2\u30fc\u30c9\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n

          \u4e3b\u306a\u7279\u5fb4\u3084\u305d\u306e\u4ed6\u306e\u985e\u4f3c\u7528\u8a9e\u3068\u306e\u6bd4\u8f03\u3092\u8868\u3084\u30ea\u30b9\u30c8\u306e\u5f62\u5f0f\u3067\u793a\u3057\u307e\u3059\u3002<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
          \u7279\u6027<\/th>\n\u30d6\u30ed\u30c3\u30af\u6697\u53f7<\/th>\n\u30b9\u30c8\u30ea\u30fc\u30e0\u6697\u53f7<\/th>\n<\/tr>\n<\/thead>\n
          \u6697\u53f7\u5316\u30d7\u30ed\u30bb\u30b9<\/td>\n\u56fa\u5b9a\u30b5\u30a4\u30ba\u306e\u30d6\u30ed\u30c3\u30af\u3067\u52d5\u4f5c\u3059\u308b<\/td>\n\u500b\u3005\u306e\u30d3\u30c3\u30c8\u3092\u64cd\u4f5c\u3059\u308b<\/td>\n<\/tr>\n
          \u52d5\u4f5c\u30e2\u30fc\u30c9<\/td>\n\u3088\u308a\u5927\u304d\u306a\u30c7\u30fc\u30bf\u306b\u306f\u8ffd\u52a0\u306e\u30e2\u30fc\u30c9\u304c\u5fc5\u8981<\/td>\n\u4efb\u610f\u306e\u9577\u3055\u306e\u30c7\u30fc\u30bf\u3092\u76f4\u63a5\u6697\u53f7\u5316\u3067\u304d\u308b<\/td>\n<\/tr>\n
          \u30e1\u30e2\u30ea\u8981\u4ef6<\/td>\n\u901a\u5e38\u3001\u3088\u308a\u591a\u304f\u306e\u30e1\u30e2\u30ea\u304c\u5fc5\u8981<\/td>\n\u4e00\u822c\u7684\u306b\u30e1\u30e2\u30ea\u6d88\u8cbb\u91cf\u304c\u5c11\u306a\u3044<\/td>\n<\/tr>\n
          \u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u6697\u53f7\u5316<\/td>\n\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u306e\u5834\u5408\u306f\u9045\u304f\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b<\/td>\n\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u6700\u9069<\/td>\n<\/tr>\n
          \u4e26\u5217\u51e6\u7406<\/td>\n\u9ad8\u901f\u5316\u306e\u305f\u3081\u306b\u4e26\u5217\u5316\u3059\u308b\u306e\u304c\u56f0\u96e3<\/td>\n\u4e26\u5217\u51e6\u7406\u306b\u9069\u3057\u3066\u3044\u308b<\/td>\n<\/tr>\n
          \u30a8\u30e9\u30fc\u306e\u4f1d\u64ad<\/td>\n\u30a8\u30e9\u30fc\u306f\u30d6\u30ed\u30c3\u30af\u5185\u3067\u4f1d\u64ad\u3059\u308b<\/td>\n\u30a8\u30e9\u30fc\u306f\u500b\u3005\u306e\u30d3\u30c3\u30c8\u306b\u306e\u307f\u5f71\u97ff\u3057\u307e\u3059<\/td>\n<\/tr>\n
          \u4f8b<\/td>\nAES\u3001DES\u3001\u30d6\u30ed\u30fc\u30d5\u30a3\u30c3\u30b7\u30e5<\/td>\nRC4\u3001\u30c1\u30e3\u30c1\u30e320\u3001\u30b5\u30eb\u30b520<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          \u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306b\u95a2\u3059\u308b\u5c06\u6765\u306e\u5c55\u671b\u3068\u6280\u8853\u3002<\/h2>\n

          \u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306e\u5c06\u6765\u306f\u3001\u30c7\u30b8\u30bf\u30eb\u74b0\u5883\u306b\u304a\u3051\u308b\u65b0\u305f\u306a\u8ab2\u984c\u306e\u89e3\u6c7a\u306b\u304b\u304b\u3063\u3066\u3044\u307e\u3059\u3002\u6f5c\u5728\u7684\u306a\u958b\u767a\u306b\u306f\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

            \n
          1. \n

            \u91cf\u5b50\u62b5\u6297<\/strong>\u91cf\u5b50\u30b3\u30f3\u30d4\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u9032\u6b69\u3059\u308b\u306b\u3064\u308c\u3001\u5f93\u6765\u306e\u6697\u53f7\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3092\u7834\u308b\u8105\u5a01\u304c\u5897\u5927\u3057\u3066\u3044\u307e\u3059\u3002\u5c06\u6765\u7684\u306b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u91cf\u5b50\u8010\u6027\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306e\u958b\u767a\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n<\/li>\n

          2. \n

            \u8efd\u91cf\u6697\u53f7<\/strong>: \u30e2\u30ce\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 (IoT) \u3068\u30ea\u30bd\u30fc\u30b9\u306b\u5236\u7d04\u306e\u3042\u308b\u30c7\u30d0\u30a4\u30b9\u306e\u53f0\u982d\u306b\u3088\u308a\u3001\u6700\u5c0f\u9650\u306e\u8a08\u7b97\u3068\u30e1\u30e2\u30ea \u30ea\u30bd\u30fc\u30b9\u3092\u5fc5\u8981\u3068\u3059\u308b\u8efd\u91cf\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306e\u91cd\u8981\u6027\u304c\u9ad8\u307e\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n

          3. \n

            \u91cf\u5b50\u6697\u53f7<\/strong>: \u683c\u5b50\u30d9\u30fc\u30b9\u3084\u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u306e\u6697\u53f7\u306a\u3069\u306e\u65b0\u3057\u3044\u6697\u53f7\u5316\u30d7\u30ea\u30df\u30c6\u30a3\u30d6\u3092\u5148\u99c6\u7684\u306b\u958b\u767a\u3059\u308b\u3053\u3068\u3067\u3001\u91cf\u5b50\u3092\u8d85\u3048\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5b9f\u73fe\u3067\u304d\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n

            \u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u3092\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u3068\u3069\u306e\u3088\u3046\u306b\u4f7f\u7528\u307e\u305f\u306f\u95a2\u9023\u4ed8\u3051\u308b\u304b\u3002<\/h2>\n

            \u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u9593\u306e\u4ef2\u4ecb\u5f79\u3068\u3057\u3066\u6a5f\u80fd\u3057\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e ID \u3092\u96a0\u3059\u3053\u3068\u3067\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5f37\u5316\u3057\u307e\u3059\u3002\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u6697\u53f7\u5316\u3068\u30c7\u30fc\u30bf\u4fdd\u8b77\u306e\u5c64\u3092\u3055\u3089\u306b\u5f37\u5316\u3067\u304d\u307e\u3059\u3002<\/p>\n

            \u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u7d4c\u7531\u3067\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\u3059\u308b\u524d\u306b\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u3092\u4f7f\u7528\u3057\u3066\u30c7\u30fc\u30bf\u3092\u6697\u53f7\u5316\u3059\u308b\u3053\u3068\u3067\u3001\u6a29\u9650\u306e\u306a\u3044\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306b\u3088\u3063\u3066\u508d\u53d7\u3055\u308c\u305f\u5834\u5408\u3067\u3082\u5143\u306e\u30c7\u30fc\u30bf\u306f\u5b89\u5168\u306b\u4fdd\u305f\u308c\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30ea\u30e2\u30fc\u30c8 \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068\u306e\u5b89\u5168\u306a\u901a\u4fe1\u306b\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u3092\u4f7f\u7528\u3059\u308b\u3088\u3046\u306b\u69cb\u6210\u3067\u304d\u308b\u305f\u3081\u3001\u30c7\u30fc\u30bf\u9001\u4fe1\u4e2d\u306e\u6a5f\u5bc6\u60c5\u5831\u304c\u3055\u3089\u306b\u4fdd\u8b77\u3055\u308c\u307e\u3059\u3002<\/p>\n

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

            \u30d6\u30ed\u30c3\u30af\u6697\u53f7\u3068\u6697\u53f7\u5316\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\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. NIST \u306e\u6697\u53f7\u5316\u30c4\u30fc\u30eb\u30ad\u30c3\u30c8<\/a><\/li>\n
            2. IACR: \u56fd\u969b\u6697\u53f7\u7814\u7a76\u5354\u4f1a<\/a><\/li>\n
            3. \u30b7\u30e5\u30ca\u30a4\u30a2\u30fc\u6c0f\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u95a2\u3059\u308b\u898b\u89e3<\/a><\/li>\n<\/ol>\n

              \u7d50\u8ad6\u3068\u3057\u3066\u3001\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u306f\u30c7\u30b8\u30bf\u30eb\u901a\u4fe1\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u78ba\u4fdd\u3057\u3001\u6a5f\u5bc6\u60c5\u5831\u306e\u6a5f\u5bc6\u6027\u3001\u5b8c\u5168\u6027\u3001\u771f\u6b63\u6027\u3092\u4fdd\u8a3c\u3059\u308b\u4e0a\u3067\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u304c\u9032\u5316\u3057\u7d9a\u3051\u308b\u4e2d\u3001\u65b0\u305f\u306a\u8105\u5a01\u304b\u3089\u8eab\u3092\u5b88\u308b\u305f\u3081\u306b\u3001\u5e38\u306b\u8b66\u6212\u3092\u6020\u3089\u305a\u3001\u6697\u53f7\u5316\u6280\u8853\u3092\u9069\u5fdc\u3055\u305b\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u3092\u30d6\u30ed\u30c3\u30af\u6697\u53f7\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u7528\u3059\u308b\u3068\u3001\u4fdd\u8b77\u5c64\u304c\u8ffd\u52a0\u3055\u308c\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u3067\u5b89\u5168\u3067\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u306a\u901a\u4fe1\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002<\/p>","protected":false},"featured_media":467754,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476058","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about Block Cipher: Safeguarding Digital Communication<\/mark>","faq_items":[{"question":"What is a Block cipher?","answer":"

              A Block cipher is a cryptographic algorithm used to encrypt and decrypt data in fixed-size blocks, ensuring the confidentiality, integrity, and authenticity of sensitive information.<\/p>"},{"question":"How did Block ciphers originate?","answer":"

              Block ciphers have a rich history dating back to ancient times, with early examples like the Caesar cipher. Modern Block ciphers began to emerge during World War II, with the development of machines like the Enigma.<\/p>"},{"question":"How does a Block cipher work?","answer":"

              A Block cipher operates on fixed-size blocks of data using a secret encryption key. It employs multiple rounds of substitutions and permutations, enhancing security.<\/p>"},{"question":"What are the key features of Block ciphers?","answer":"

              Block ciphers offer confidentiality, data integrity, and block\/key size options. They are efficient, but security depends on key size and speed.<\/p>"},{"question":"What types of Block ciphers exist?","answer":"

              Block ciphers come in various types, including Feistel Cipher, SP-Network, and Substitution-Permutation Network (SPN).<\/p>"},{"question":"How are Block ciphers used?","answer":"

              Block ciphers find applications in secure communication, data encryption, digital signatures, and cryptographic hash functions.<\/p>"},{"question":"What challenges are associated with Block ciphers?","answer":"

              Key management, security strength, and selecting appropriate modes of operation pose challenges in using Block ciphers.<\/p>"},{"question":"How do Block ciphers compare to Stream ciphers?","answer":"

              Block ciphers work on fixed-size blocks, while Stream ciphers operate on individual bits. They differ in speed, memory usage, and error propagation.<\/p>"},{"question":"What does the future hold for Block ciphers?","answer":"

              The future of Block ciphers lies in quantum resistance, lightweight ciphers for IoT, and post-quantum security developments.<\/p>"},{"question":"How are proxy servers associated with Block ciphers?","answer":"

              Proxy servers act as intermediaries, and when used with Block ciphers, they provide an additional layer of encryption for secure data transmission.<\/p>

              For more detailed information and resources, explore the content above. Stay informed and secure in the digital age!<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/476058","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\/476058\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media\/467754"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media?parent=476058"}],"curies":[{"name":"\u3046\u30fc\u3093","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}