{"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\/cn\/wiki\/block-cipher\/","title":{"rendered":"\u5206\u7ec4\u5bc6\u7801"},"content":{"rendered":"

\u5757\u5bc6\u7801\u662f\u4e00\u79cd\u52a0\u5bc6\u7b97\u6cd5\uff0c\u7528\u4e8e\u52a0\u5bc6\u548c\u89e3\u5bc6\u56fa\u5b9a\u5927\u5c0f\u5757\u4e2d\u7684\u6570\u636e\uff0c\u901a\u5e38\u7531\u56fa\u5b9a\u4f4d\u6570\u7ec4\u6210\u3002\u5b83\u5728\u4fdd\u62a4\u6570\u5b57\u901a\u4fe1\u3001\u786e\u4fdd\u654f\u611f\u4fe1\u606f\u7684\u673a\u5bc6\u6027\u3001\u5b8c\u6574\u6027\u548c\u771f\u5b9e\u6027\u65b9\u9762\u53d1\u6325\u7740\u57fa\u7840\u4f5c\u7528\u3002\u5206\u7ec4\u5bc6\u7801\u5e7f\u6cdb\u7528\u4e8e\u5404\u79cd\u5e94\u7528\uff0c\u4f8b\u5982\u5b89\u5168\u901a\u4fe1\u901a\u9053\u3001\u6570\u636e\u5b58\u50a8\u52a0\u5bc6\u548c\u8eab\u4efd\u9a8c\u8bc1\u534f\u8bae\u3002<\/p>\n

\u5206\u7ec4\u5bc6\u7801\u7684\u8d77\u6e90\u5386\u53f2\u53ca\u5176\u9996\u6b21\u63d0\u53ca\u3002<\/h2>\n

\u5206\u7ec4\u5bc6\u7801\u7684\u8d77\u6e90\u53ef\u4ee5\u8ffd\u6eaf\u5230\u5bc6\u7801\u5b66\u7684\u65e9\u671f\u3002\u5df2\u77e5\u6700\u65e9\u7684\u5206\u7ec4\u5bc6\u7801\u5b9e\u4f8b\u4e4b\u4e00\u662f\u51ef\u6492\u5bc6\u7801\uff0c\u5f52\u56e0\u4e8e\u6731\u5229\u53f6\u65af\u00b7\u51ef\u6492\uff0c\u5176\u4e2d\u660e\u6587\u4e2d\u7684\u6bcf\u4e2a\u5b57\u6bcd\u5728\u5b57\u6bcd\u8868\u4e2d\u79fb\u52a8\u56fa\u5b9a\u6570\u91cf\u7684\u4f4d\u7f6e\u3002\u7136\u800c\uff0c\u968f\u7740\u5fb7\u56fd\u6069\u5c3c\u683c\u739b\u673a\u7684\u53d1\u5c55\u548c\u82f1\u56fd\u7834\u89e3\u5176\u52a0\u5bc6\u7684\u52aa\u529b\uff0c\u6211\u4eec\u4eca\u5929\u6240\u77e5\u7684\u73b0\u4ee3\u5206\u7ec4\u5bc6\u7801\u5f00\u59cb\u51fa\u73b0\u3002<\/p>\n

\u6709\u5173\u5206\u7ec4\u5bc6\u7801\u7684\u8be6\u7ec6\u4fe1\u606f\u3002\u6269\u5c55\u4e3b\u9898\u5206\u7ec4\u5bc6\u7801\u3002<\/h2>\n

\u5757\u5bc6\u7801\u5bf9\u56fa\u5b9a\u5927\u5c0f\u7684\u6570\u636e\u5757\u8fdb\u884c\u64cd\u4f5c\uff0c\u4f7f\u7528\u79d8\u5bc6\u52a0\u5bc6\u5bc6\u94a5\u5c06\u660e\u6587\u8f6c\u6362\u4e3a\u5bc6\u6587\uff0c\u53cd\u4e4b\u4ea6\u7136\u3002\u52a0\u5bc6\u8fc7\u7a0b\u6d89\u53ca\u591a\u8f6e\u66ff\u6362\u548c\u6392\u5217\uff0c\u79f0\u4e3a Feistel \u7f51\u7edc\u3002\u6bcf\u8f6e\u90fd\u91c7\u7528\u660e\u6587\u7684\u4e00\u90e8\u5206\uff08\u534a\u5757\uff09\uff0c\u4f7f\u7528\u52a0\u5bc6\u5bc6\u94a5\u5e94\u7528\u7279\u5b9a\u7684\u8f6c\u6362\uff0c\u7136\u540e\u5728\u540e\u7eed\u8f6e\u4e2d\u5c06\u7ed3\u679c\u4e0e\u660e\u6587\u7684\u5176\u4ed6\u90e8\u5206\u7ec4\u5408\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u4f1a\u91cd\u590d\u591a\u6b21\uff08\u4e00\u822c\u4e3a10-16\u8f6e\uff09\uff0c\u589e\u5f3a\u4e86\u7b97\u6cd5\u7684\u5b89\u5168\u6027\u3002<\/p>\n

\u5206\u7ec4\u5bc6\u7801\u7684\u5185\u90e8\u7ed3\u6784\u3002\u5206\u7ec4\u5bc6\u7801\u7684\u5de5\u4f5c\u539f\u7406\u3002<\/h2>\n

\u5206\u7ec4\u5bc6\u7801\u7684\u5185\u90e8\u7ed3\u6784\u53ef\u4ee5\u53ef\u89c6\u5316\u4e3a\u4e00\u7cfb\u5217\u4e92\u8fde\u7684\u6784\u5efa\u5757\uff1a<\/p>\n

    \n
  1. \n

    \u66ff\u4ee3\u6392\u5217\u7f51\u7edc (SPN)<\/strong>\uff1a\u57fa\u672c\u6784\u5efa\u5757\uff0c\u7531\u7528\u7279\u5b9a\u8f93\u51fa\u4f4d\u66ff\u6362\u8f93\u5165\u4f4d\u7684\u66ff\u6362\u76d2 (S-box) \u548c\u91cd\u65b0\u6392\u5217\u4f4d\u7684\u6392\u5217\u76d2 (P-box) \u7ec4\u6210\u3002<\/p>\n<\/li>\n

  2. \n

    \u83f2\u65af\u7279\u7f51\u7edc<\/strong>\uff1a\u4e00\u79cd\u6d41\u884c\u7684\u5206\u7ec4\u5bc6\u7801\u8bbe\u8ba1\uff0c\u57fa\u4e8e Feistel \u8f6e\u7f51\u7edc\u3002\u6bcf\u4e00\u8f6e\u90fd\u5e94\u7528 SPN \u7ed3\u6784\uff0c\u7ed3\u679c\u5728\u8fdb\u5165\u4e0b\u4e00\u8f6e\u4e4b\u524d\u4e0e\u5757\u7684\u53e6\u4e00\u534a\u6df7\u5408\u3002<\/p>\n<\/li>\n

  3. \n

    \u5173\u952e\u65f6\u95f4\u8868<\/strong>\uff1a\u4ece\u4e3b\u52a0\u5bc6\u5bc6\u94a5\u751f\u6210\u8f6e\u5bc6\u94a5\u7684\u8fc7\u7a0b\u3002\u8fd9\u4e9b\u8f6e\u5bc6\u94a5\u7528\u4e8e\u5bc6\u7801\u7684\u6bcf\u4e00\u8f6e\uff0c\u4ee5\u63d0\u4f9b\u591a\u6837\u6027\u548c\u5b89\u5168\u6027\u3002<\/p>\n<\/li>\n<\/ol>\n

    \u5206\u7ec4\u5bc6\u7801\u7684\u5173\u952e\u7279\u5f81\u5206\u6790\u3002<\/h2>\n

    \u5206\u7ec4\u5bc6\u7801\u5177\u6709\u51e0\u4e2a\u5173\u952e\u7279\u6027\uff0c\u4f7f\u5176\u9002\u7528\u4e8e\u5404\u79cd\u52a0\u5bc6\u5e94\u7528\uff1a<\/p>\n

      \n
    1. \n

      \u4fdd\u5bc6<\/strong>\uff1a\u5206\u7ec4\u5bc6\u7801\u63d0\u4f9b\u5f3a\u5927\u7684\u52a0\u5bc6\u529f\u80fd\uff0c\u786e\u4fdd\u672a\u7ecf\u6388\u6743\u7684\u4e2a\u4eba\u5728\u6ca1\u6709\u6b63\u786e\u7684\u52a0\u5bc6\u5bc6\u94a5\u7684\u60c5\u51b5\u4e0b\u65e0\u6cd5\u89e3\u5bc6\u539f\u59cb\u6570\u636e\u3002<\/p>\n<\/li>\n

    2. \n

      \u6570\u636e\u7684\u5b8c\u6574\u6027<\/strong>\uff1a\u901a\u8fc7\u5bf9\u56fa\u5b9a\u5927\u5c0f\u7684\u5757\u4e2d\u7684\u6570\u636e\u8fdb\u884c\u52a0\u5bc6\uff0c\u5757\u5bc6\u7801\u53ef\u4ee5\u68c0\u6d4b\u5728\u4f20\u8f93\u6216\u5b58\u50a8\u8fc7\u7a0b\u4e2d\u5bf9\u5bc6\u6587\u8fdb\u884c\u7684\u4efb\u4f55\u672a\u7ecf\u6388\u6743\u7684\u66f4\u6539\u3002<\/p>\n<\/li>\n

    3. \n

      \u5757\u5927\u5c0f<\/strong>\uff1a\u5206\u7ec4\u5bc6\u7801\u4f7f\u7528\u56fa\u5b9a\u5927\u5c0f\u7684\u5757\uff0c\u901a\u5e38\u8303\u56f4\u4e3a 64 \u5230 256 \u4f4d\u3002\u5757\u5927\u5c0f\u8d8a\u5927\uff0c\u5bc6\u7801\u8d8a\u5b89\u5168\uff0c\u4f46\u4e5f\u4f1a\u589e\u52a0\u8ba1\u7b97\u590d\u6742\u6027\u3002<\/p>\n<\/li>\n

    4. \n

      \u94a5\u5319\u5c3a\u5bf8<\/strong>\uff1a\u5757\u5bc6\u7801\u7684\u5b89\u5168\u6027\u5728\u5f88\u5927\u7a0b\u5ea6\u4e0a\u53d6\u51b3\u4e8e\u52a0\u5bc6\u5bc6\u94a5\u7684\u5927\u5c0f\u3002\u5bc6\u94a5\u957f\u5ea6\u8d8a\u957f\uff0c\u5bf9\u66b4\u529b\u653b\u51fb\u7684\u62b5\u6297\u529b\u5c31\u8d8a\u9ad8\u3002<\/p>\n<\/li>\n

    5. \n

      \u901f\u5ea6<\/strong>\uff1a\u9ad8\u6548\u7684\u5206\u7ec4\u5bc6\u7801\u5bf9\u4e8e\u5b9e\u65f6\u5e94\u7528\u548c\u9ad8\u901f\u6570\u636e\u52a0\u5bc6\/\u89e3\u5bc6\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<\/li>\n<\/ol>\n

      \u5206\u7ec4\u5bc6\u7801\u7684\u7c7b\u578b<\/h2>\n

      \u5206\u7ec4\u5bc6\u7801\u6709\u591a\u79cd\u7c7b\u578b\uff0c\u6bcf\u79cd\u7c7b\u578b\u90fd\u6709\u5176\u7279\u5b9a\u7684\u7279\u5f81\u548c\u5e94\u7528\u3002\u4e00\u4e9b\u503c\u5f97\u6ce8\u610f\u7684\u7c7b\u578b\u5305\u62ec\uff1a<\/p>\n\n\n\n\n\n\n\n
      \u7c7b\u578b<\/th>\n\u4f8b\u5b50<\/th>\n\u5757\u5927\u5c0f<\/th>\n\u94a5\u5319\u5c3a\u5bf8<\/th>\n\u7528\u6cd5<\/th>\n<\/tr>\n<\/thead>\n
      \u8d39\u65af\u7279\u5bc6\u7801<\/strong><\/td>\nDES\u30013DES\uff08TDEA\uff09<\/td>\n64\u4f4d<\/td>\n56\/112\/168\u4f4d<\/td>\n\u5b89\u5168\u901a\u4fe1\u3001\u9057\u7559\u7cfb\u7edf<\/td>\n<\/tr>\n
      SP\u7f51\u7edc<\/strong><\/td>\nAES (Rijndael)\u3001\u8336\u82b1<\/td>\n128\/256 \u4f4d<\/td>\n128\/192\/256 \u4f4d<\/td>\n\u5e7f\u6cdb\u7684\u5e94\u7528\uff0c\u73b0\u4ee3\u5316\u7684\u7cfb\u7edf<\/td>\n<\/tr>\n
      \u66ff\u4ee3\u6392\u5217\u7f51\u7edc (SPN)<\/strong><\/td>\n\u6cb3\u8c5a\u3001\u53cc\u9c7c<\/td>\n64\/128\/256 \u4f4d<\/td>\n\u6700\u9ad8 448 \u4f4d<\/td>\n\u6570\u636e\u52a0\u5bc6\uff0c\u5b89\u5168\u5b58\u50a8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \u4f7f\u7528\u5206\u7ec4\u5bc6\u7801\u7684\u65b9\u6cd5\u3001\u95ee\u9898\u4ee5\u53ca\u4e0e\u4f7f\u7528\u76f8\u5173\u7684\u89e3\u51b3\u65b9\u6848\u3002<\/h2>\n

      \u5206\u7ec4\u5bc6\u7801\u5728\u73b0\u4ee3\u5bc6\u7801\u5b66\u7684\u8bb8\u591a\u9886\u57df\u90fd\u6709\u5e94\u7528\uff1a<\/p>\n

        \n
      1. \n

        \u5b89\u5168\u901a\u8baf<\/strong>\uff1a\u5206\u7ec4\u5bc6\u7801\u901a\u8fc7\u5728\u4f20\u8f93\u524d\u5bf9\u6570\u636e\u8fdb\u884c\u52a0\u5bc6\u5e76\u5728\u63a5\u6536\u7aef\u5bf9\u5176\u8fdb\u884c\u89e3\u5bc6\u6765\u4fdd\u62a4\u901a\u8fc7\u7f51\u7edc\u4f20\u8f93\u7684\u654f\u611f\u4fe1\u606f\u3002<\/p>\n<\/li>\n

      2. \n

        \u6570\u636e\u52a0\u5bc6<\/strong>\uff1a\u5b83\u4eec\u4fdd\u62a4\u6570\u636e\u5e93\u3001\u786c\u76d8\u6216\u4e91\u5b58\u50a8\u4e2d\u5b58\u50a8\u7684\u6570\u636e\uff0c\u9632\u6b62\u672a\u7ecf\u6388\u6743\u7684\u8bbf\u95ee\u3002<\/p>\n<\/li>\n

      3. \n

        \u6570\u5b57\u7b7e\u540d<\/strong>\uff1a\u5206\u7ec4\u5bc6\u7801\u7528\u4e8e\u6570\u5b57\u7b7e\u540d\u7b97\u6cd5\uff0c\u4ee5\u786e\u4fdd\u6d88\u606f\u7684\u771f\u5b9e\u6027\u548c\u5b8c\u6574\u6027\u3002<\/p>\n<\/li>\n

      4. \n

        \u52a0\u5bc6\u54c8\u5e0c\u51fd\u6570<\/strong>\uff1a\u4e00\u4e9b\u5206\u7ec4\u5bc6\u7801\u53ef\u4ee5\u9002\u5e94\u52a0\u5bc6\u54c8\u5e0c\u51fd\u6570\uff0c\u4ee5\u751f\u6210\u56fa\u5b9a\u5927\u5c0f\u7684\u6d88\u606f\u6458\u8981\u3002<\/p>\n<\/li>\n<\/ol>\n

        \u7136\u800c\uff0c\u4f7f\u7528\u5206\u7ec4\u5bc6\u7801\u4f1a\u5e26\u6765\u6f5c\u5728\u7684\u6311\u6218\uff1a<\/p>\n

          \n
        1. \n

          \u5bc6\u94a5\u7ba1\u7406<\/strong>\uff1a\u6b63\u786e\u7684\u5bc6\u94a5\u7ba1\u7406\u5bf9\u4e8e\u7ef4\u62a4\u5206\u7ec4\u5bc6\u7801\u7684\u5b89\u5168\u6027\u81f3\u5173\u91cd\u8981\u3002\u5b89\u5168\u5730\u5b58\u50a8\u548c\u5206\u53d1\u5bc6\u94a5\u662f\u4e00\u9879\u5177\u6709\u6311\u6218\u6027\u7684\u4efb\u52a1\u3002<\/p>\n<\/li>\n

        2. \n

          \u5b89\u5168\u5f3a\u5ea6<\/strong>\uff1a\u9762\u5bf9\u5bc6\u7801\u5206\u6790\u7684\u8fdb\u6b65\uff0c\u65e7\u7684\u5206\u7ec4\u5bc6\u7801\u53ef\u80fd\u4f1a\u53d8\u5f97\u8106\u5f31\u3002\u5b9a\u671f\u66f4\u65b0\u66f4\u5f3a\u7684\u7b97\u6cd5\u662f\u5fc5\u8981\u7684\u3002<\/p>\n<\/li>\n

        3. \n

          \u8fd0\u4f5c\u6a21\u5f0f<\/strong>\uff1a\u5757\u5bc6\u7801\u9700\u8981\u7535\u5b50\u5bc6\u7801\u672c (ECB) \u6216\u5bc6\u7801\u5757\u94fe\u63a5 (CBC) \u7b49\u64cd\u4f5c\u6a21\u5f0f\u6765\u52a0\u5bc6\u5927\u4e8e\u5757\u5927\u5c0f\u7684\u6570\u636e\u3002<\/p>\n<\/li>\n<\/ol>\n

          \u4ee5\u8868\u683c\u548c\u5217\u8868\u7684\u5f62\u5f0f\u5217\u51fa\u4e3b\u8981\u7279\u5f81\u4ee5\u53ca\u4e0e\u7c7b\u4f3c\u672f\u8bed\u7684\u5176\u4ed6\u6bd4\u8f83\u3002<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
          \u7279\u5f81<\/th>\n\u5206\u7ec4\u5bc6\u7801<\/th>\n\u6d41\u5bc6\u7801<\/th>\n<\/tr>\n<\/thead>\n
          \u52a0\u5bc6\u8fc7\u7a0b<\/td>\n\u5728\u56fa\u5b9a\u5927\u5c0f\u7684\u5757\u4e0a\u8fdb\u884c\u64cd\u4f5c<\/td>\n\u5bf9\u5404\u4e2a\u4f4d\u8fdb\u884c\u64cd\u4f5c<\/td>\n<\/tr>\n
          \u64cd\u4f5c\u6a21\u5f0f<\/td>\n\u9700\u8981\u989d\u5916\u7684\u6a21\u5f0f\u6765\u5904\u7406\u66f4\u5927\u7684\u6570\u636e<\/td>\n\u53ef\u4ee5\u76f4\u63a5\u52a0\u5bc6\u4efb\u610f\u957f\u5ea6\u7684\u6570\u636e<\/td>\n<\/tr>\n
          \u5185\u5b58\u8981\u6c42<\/td>\n\u901a\u5e38\u9700\u8981\u66f4\u591a\u5185\u5b58<\/td>\n\u901a\u5e38\u9700\u8981\u8f83\u5c11\u7684\u5185\u5b58<\/td>\n<\/tr>\n
          \u5b9e\u65f6\u52a0\u5bc6<\/td>\n\u5bf9\u4e8e\u5927\u6570\u636e\u91cf\u53ef\u80fd\u4f1a\u66f4\u6162<\/td>\n\u66f4\u9002\u5408\u5b9e\u65f6\u5e94\u7528<\/td>\n<\/tr>\n
          \u5e76\u884c\u5904\u7406<\/td>\n\u66f4\u96be\u5e76\u884c\u5316\u4ee5\u63d0\u9ad8\u901f\u5ea6<\/td>\n\u66f4\u9002\u5408\u5e76\u884c\u5904\u7406<\/td>\n<\/tr>\n
          \u8bef\u5dee\u4f20\u64ad<\/td>\n\u9519\u8bef\u5728\u5757\u5185\u4f20\u64ad<\/td>\n\u9519\u8bef\u4ec5\u5f71\u54cd\u4e2a\u522b\u4f4d<\/td>\n<\/tr>\n
          \u4f8b\u5b50<\/td>\nAES\u3001DES\u3001Blowfish<\/td>\nRC4\u3001ChaCha20\u3001Salsa20<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

          \u4e0e\u5206\u7ec4\u5bc6\u7801\u76f8\u5173\u7684\u672a\u6765\u524d\u666f\u548c\u6280\u672f\u3002<\/h2>\n

          \u5206\u7ec4\u5bc6\u7801\u7684\u672a\u6765\u5728\u4e8e\u89e3\u51b3\u6570\u5b57\u9886\u57df\u65b0\u51fa\u73b0\u7684\u6311\u6218\u3002\u4e00\u4e9b\u6f5c\u5728\u7684\u53d1\u5c55\u5305\u62ec\uff1a<\/p>\n

            \n
          1. \n

            \u91cf\u5b50\u7535\u963b<\/strong>\uff1a\u968f\u7740\u91cf\u5b50\u8ba1\u7b97\u7684\u8fdb\u6b65\uff0c\u7834\u574f\u4f20\u7edf\u52a0\u5bc6\u7b97\u6cd5\u7684\u5a01\u80c1\u8d8a\u6765\u8d8a\u5927\u3002\u5f00\u53d1\u6297\u91cf\u5b50\u5206\u7ec4\u5bc6\u7801\u5bf9\u4e8e\u7ef4\u62a4\u672a\u6765\u7684\u5b89\u5168\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<\/li>\n

          2. \n

            \u8f7b\u91cf\u7ea7\u5bc6\u7801<\/strong>\uff1a\u968f\u7740\u7269\u8054\u7f51 (IoT) \u548c\u8d44\u6e90\u53d7\u9650\u8bbe\u5907\u7684\u5174\u8d77\uff0c\u9700\u8981\u6700\u5c11\u8ba1\u7b97\u548c\u5185\u5b58\u8d44\u6e90\u7684\u8f7b\u91cf\u7ea7\u5206\u7ec4\u5bc6\u7801\u5c06\u53d8\u5f97\u91cd\u8981\u3002<\/p>\n<\/li>\n

          3. \n

            \u540e\u91cf\u5b50\u5bc6\u7801<\/strong>\uff1a\u5f00\u521b\u6027\u7684\u65b0\u5bc6\u7801\u5b66\u539f\u8bed\uff0c\u4f8b\u5982\u57fa\u4e8e\u683c\u6216\u57fa\u4e8e\u4ee3\u7801\u7684\u5bc6\u7801\uff0c\u53ef\u4ee5\u63d0\u4f9b\u540e\u91cf\u5b50\u5b89\u5168\u3002<\/p>\n<\/li>\n<\/ol>\n

            \u5982\u4f55\u4f7f\u7528\u4ee3\u7406\u670d\u52a1\u5668\u6216\u5982\u4f55\u5c06\u4ee3\u7406\u670d\u52a1\u5668\u4e0e\u5757\u5bc6\u7801\u5173\u8054\u3002<\/h2>\n

            \u4ee3\u7406\u670d\u52a1\u5668\u5145\u5f53\u5ba2\u6237\u7aef\u548c\u4e92\u8054\u7f51\u4e4b\u95f4\u7684\u4e2d\u4ecb\uff0c\u901a\u8fc7\u9690\u85cf\u5ba2\u6237\u7aef\u7684\u8eab\u4efd\u6765\u589e\u5f3a\u9690\u79c1\u548c\u5b89\u5168\u6027\u3002\u5b83\u4eec\u53ef\u4ee5\u4e0e\u5206\u7ec4\u5bc6\u7801\u7ed3\u5408\u4f7f\u7528\uff0c\u4ee5\u5b9e\u73b0\u989d\u5916\u7684\u52a0\u5bc6\u548c\u6570\u636e\u4fdd\u62a4\u5c42\u3002<\/p>\n

            \u901a\u8fc7\u5728\u901a\u8fc7\u4ee3\u7406\u670d\u52a1\u5668\u4f20\u8f93\u6570\u636e\u4e4b\u524d\u4f7f\u7528\u5206\u7ec4\u5bc6\u7801\u5bf9\u6570\u636e\u8fdb\u884c\u52a0\u5bc6\uff0c\u5373\u4f7f\u539f\u59cb\u6570\u636e\u88ab\u672a\u7ecf\u6388\u6743\u7684\u5b9e\u4f53\u62e6\u622a\uff0c\u4e5f\u4ecd\u7136\u4fdd\u6301\u5b89\u5168\u3002\u6b64\u5916\uff0c\u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\u914d\u7f6e\u4e3a\u4f7f\u7528\u5206\u7ec4\u5bc6\u7801\u4e0e\u8fdc\u7a0b\u5ba2\u6237\u7aef\u8fdb\u884c\u5b89\u5168\u901a\u4fe1\uff0c\u4ece\u800c\u8fdb\u4e00\u6b65\u4fdd\u62a4\u6570\u636e\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u7684\u654f\u611f\u4fe1\u606f\u3002<\/p>\n

            \u76f8\u5173\u94fe\u63a5<\/h2>\n

            \u6709\u5173\u5206\u7ec4\u5bc6\u7801\u548c\u52a0\u5bc6\u7b97\u6cd5\u7684\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u8bbf\u95ee\u4ee5\u4e0b\u8d44\u6e90\uff1a<\/p>\n

              \n
            1. NIST \u7684\u52a0\u5bc6\u5de5\u5177\u5305<\/a><\/li>\n
            2. IACR\uff1a\u56fd\u9645\u5bc6\u7801\u5b66\u7814\u7a76\u534f\u4f1a<\/a><\/li>\n
            3. \u65bd\u5948\u5c14\u8c08\u5b89\u5168<\/a><\/li>\n<\/ol>\n

              \u603b\u4e4b\uff0c\u5206\u7ec4\u5bc6\u7801\u5728\u4fdd\u62a4\u6570\u5b57\u901a\u4fe1\u548c\u786e\u4fdd\u654f\u611f\u4fe1\u606f\u7684\u673a\u5bc6\u6027\u3001\u5b8c\u6574\u6027\u548c\u771f\u5b9e\u6027\u65b9\u9762\u53d1\u6325\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002\u968f\u7740\u6280\u672f\u7684\u4e0d\u65ad\u53d1\u5c55\uff0c\u5fc5\u987b\u4fdd\u6301\u8b66\u60d5\u5e76\u8c03\u6574\u52a0\u5bc6\u6280\u672f\u4ee5\u9632\u8303\u65b0\u51fa\u73b0\u7684\u5a01\u80c1\u3002\u5c06\u4ee3\u7406\u670d\u52a1\u5668\u4e0e\u5206\u7ec4\u5bc6\u7801\u7ed3\u5408\u4f7f\u7528\u53ef\u4ee5\u63d0\u4f9b\u989d\u5916\u7684\u4fdd\u62a4\u5c42\uff0c\u786e\u4fdd\u4e92\u8054\u7f51\u4e0a\u7684\u5b89\u5168\u548c\u79c1\u5bc6\u901a\u4fe1\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\/cn\/wp-json\/wp\/v2\/wiki\/476058","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki\/476058\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/media\/467754"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/media?parent=476058"}],"curies":[{"name":"\u53ef\u6e7f\u6027\u7c89\u5242","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}