{"id":1738,"date":"2021-01-24T01:11:34","date_gmt":"2021-01-23T17:11:34","guid":{"rendered":"https:\/\/www.zttofficial.com\/?p=1738"},"modified":"2025-11-17T22:48:42","modified_gmt":"2025-11-17T22:48:42","slug":"%e5%af%86%e7%a2%bc%e5%ad%b8%ef%bc%881%ef%bc%89%ef%bc%9a%e5%8f%a4%e5%85%b8%e5%af%86%e7%a2%bc","status":"publish","type":"post","link":"https:\/\/www.zttofficial.com\/?p=1738","title":{"rendered":"\u5bc6\u78bc\u5b78\uff081\uff09\uff1a\u53e4\u5178\u5bc6\u78bc"},"content":{"rendered":"\n

\u524d\u8a00\uff1a\u4e00\u9ede\u5ee2\u8a71<\/strong><\/h3>\n\n\n\n

\u7a0b\u5e8f\u733f\u7684\u535a\u5ba2\u597d\u50cf\u90fd\u662f\u7528\u4f86\u5beb\u6280\u8853\u6587\u7684\uff0c\u53ea\u6709\u6211\u4e00\u76f4\u5728\u9375\u653f\uff0c\u6240\u4ee5\u5fc3\u8840\u4f86\u6f6e\u60f3\u5beb\u6280\u8853\u6587\u8a66\u4e00\u8a66\u3002\u6211\u5c0d WordPress \u52a0\u4e0a\u76ee\u524d\u6b63\u5728\u4f7f\u7528\u7684\u524d\u7aef\u4e3b\u9ad4\u7684\u8868\u73fe\u4e26\u6c92\u6709\u4fe1\u5fc3\uff0c\u50cf\u4ee3\u78bc\u9ad8\u4eae\u4e4b\u985e\u7684\u64cd\u4f5c\u4e5f\u7121\u6cd5\u8655\u7406\u7684\u5f88\u597d\uff0c\u6240\u4ee5\u6e96\u5099\u5148\u8ac7\u8ac7\u6bd4\u8f03\u7406\u8ad6\u5c11\u4ee3\u78bc\u7684\u5bc6\u78bc\u5b78\u9019\u500b\u4e3b\u984c\uff0c\u9019\u4e5f\u662f\u500b\u4eba\u6bd4\u8f03\u6709\u8208\u8da3\u7684\u4e00\u500b\u9818\u57df\u3002<\/p>\n\n\n\n

\u53e4\u5178\u5bc6\u78bc\uff08Classical cipher\uff09\uff0c\u9867\u540d\u601d\u7fa9\uff0c\u5c31\u662f\u6b77\u53f2\u4e0a\u66fe\u4f7f\u7528\u7684\u4e00\u4e9b\u52a0\u5bc6\u65b9\u5f0f\uff0c\u5927\u591a\u5df2\u4e0d\u518d\u4f7f\u7528\u3002\u4e0d\u904e\u4ecb\u7d39\u5b83\u5011\u6709\u52a9\u65bc\u6211\u5011\u4e86\u89e3\u5bc6\u78bc\u5b78\u7684\u767c\u5c55\u6b77\u53f2\u4ee5\u53ca\u8a8d\u8b58\u4e00\u4e9b\u57fa\u672c\u7684\u52a0\u5bc6\u601d\u8def\u3002\u53e4\u5178\u5bc6\u78bc\u4e3b\u8981\u6709\u66ff\u63db\u5f0f\u5bc6\u78bc\u548c\u79fb\u9805\u5f0f\u5bc6\u78bc\u5169\u5927\u985e\u3002<\/p>\n\n\n\n

\u66ff\u63db\u5f0f\u5bc6\u78bc<\/strong><\/h3>\n\n\n\n

\u66ff\u63db\u5f0f\u5bc6\u78bc\uff08Substitution ciphers\uff09\uff0c\u610f\u6307\u660e\u6587\u4e2d\u7684\u5185\u5bb9\u901a\u904e\u5b57\u6bcd\u6216\u5b57\u6bcd\u7fa4\u88ab\u7cfb\u7d71\u6027\u5730\u66ff\u63db\u70ba\u5176\u4ed6\u5185\u5bb9\uff0c\u5f62\u6210\u5bc6\u6587\u3002<\/p>\n\n\n\n

\u51f1\u6492\u5bc6\u78bc<\/strong><\/h4>\n\n\n\n

\u51f1\u6492\u5bc6\u78bc<\/strong>\uff08Caesar cipher\uff09\u662f\u6700\u70ba\u4eba\u719f\u77e5\u7684\u4e00\u7a2e\u66ff\u63db\u5f0f\u5bc6\u78bc\uff0c\u6700\u65e9\u51fa\u73fe\u5728 Gallic wars \u4e2d\u7528\u65bc\u8ecd\u4e8b\u76ee\u7684\u3002\u5b83\u9084\u6709\u53e6\u4e00\u500b\u540d\u5b57\u53eb Caesar shift<\/strong>\uff0c\u610f\u601d\u5c31\u5f88\u660e\u986f\u4e86\u2014\u2014\u901a\u904e\u79fb\u4f4d\uff08shift\uff09\u4f86\u9054\u6210\u66ff\u63db\u7684\u76ee\u7684\u3002\u6bd4\u5982\u4e00\u4e32\u660e\u6587”ABC”\uff0c\u7528”D”\u66ff\u4ee3”A”\u3001”E”\u66ff\u4ee3”B”\u3001”F”\u66ff\u4ee3”C”\uff0c\u5247\u6703\u5f97\u5230\u5bc6\u6587”DEF”\uff0c\u6211\u5011\u53ef\u4ee5\u7406\u89e3\u70ba\uff0c\u660e\u6587\u300c\u53f3\u300d\u79fb\u4e86\u4e09\u4f4d\u5f97\u5230\u4e86\u5bc6\u6587\u3002<\/p>\n\n\n\n

\u591a\u8aac\u7121\u76ca\uff0c\u76f4\u63a5\u770b\u4e00\u500b\u4f8b\u5b50\uff1a<\/p>\n\n\n\n

Plain: I like zttofficial\nCipher: L\u2002olnh\u2002cwwriilfldo<\/code><\/pre>\n\n\n\n
\u539f\u6587\u4e2d\u7684\u6bcf\u500b\u5b57\u6bcd\u90fd\u5411\u53f3\u79fb\u52d5\u4e86\u4e09\u4f4d\uff0c\u5f9e\u800c\u7522\u751f\u4e86\u5bc6\u6587\uff0c\u66ff\u63db\u904e\u7a0b\u9075\u5faa\u4e0b\u8868\uff1a<\/p>\n\n\n\n
\"\"\/<\/figure>\n\n\n\n
\u57fa\u65bc\u6b64\uff0c\u6211\u5011\u53ef\u4ee5\u7528\u6578\u5b78\u65b9\u5f0f\u8868\u9054\u660e\u6587\u8207\u5bc6\u6587\u4e4b\u9593\u7684\u95dc\u4fc2\uff1a<\/p>\n\n\n\n
C = E(k, p) = (p + k) mod 26\np = D(k, C) = (C - k) mod 26<\/code><\/pre>\n\n\n\n
\u51f1\u6492\u5bc6\u78bc\u7e3d\u5171\u53ea\u6709 25 \u7a2e\u79fb\u4f4d\u65b9\u6cd5\uff0c\u5f88\u5bb9\u6613\u901a\u904e\u66b4\u529b<\/strong>\uff08Brute Force\uff09\u7834\u89e3\uff0c\u7c21\u7c21\u55ae\u55ae\u679a\u8209\u6240\u6709\u53ef\u80fd\u7684\u60c5\u6cc1\u4fbf\u80fd\u5f97\u5230\u660e\u6587\u3002<\/p>\n\n\n\n
\u55ae\u8868\u52a0\u5bc6<\/strong><\/h4>\n\n\n\n
\u55ae\u8868\u52a0\u5bc6<\/strong>\uff08monoalphabetic cipher\uff09\u56b4\u683c\u5b9a\u7fa9\u4e0a\u662f\u51f1\u6492\u5bc6\u78bc\u7684\u6bcd\u96c6\uff0c\u5373\u51f1\u6492\u5bc6\u78bc\u4e5f\u662f\u55ae\u8868\u52a0\u5bc6\u7684\u4e00\u7a2e\u3002\u4e0d\u904e\u6b64\u8655\u8a9e\u5883\u4e0b\u7684\u55ae\u8868\u52a0\u5bc6\uff0c\u662f\u6307\u5c0d\u51f1\u6492\u5bc6\u78bc\u7684\u4e00\u7a2e\u6539\u826f\u65b9\u5f0f\uff0c\u5b83\u5c0d\u6574\u500b\u660e\u6587\u9032\u884c\u66ff\u63db\uff0c\u800c\u4e0d\u662f\u66ff\u63db\u9010\u500b\u5b57\u6bcd\uff0c\u9019\u610f\u5473\u8457\u55ae\u8868\u52a0\u5bc6\u9700\u8981\u4e00\u500b\u8207\u660e\u6587\u76f8\u540c\u9577\u5ea6\u7684\u5bc6\u9470\u3002<\/p>\n\n\n\n
Plain: if we wish to replace letters\nKey: dkvqfibjwpescxhtmyauolrgznwi\nCipher: wi rf rwaj uh yftsdvf sfuufya<\/code><\/pre>\n\n\n\n
\u96d6\u7136\u6392\u5217\u7d44\u5408\u7684\u53ef\u80fd\u6027\u8b8a\u5f97\u975e\u5e38\u591a\uff0c\u4f46\u4ecd\u7136\u662f\u98a8\u96aa\u5f88\u9ad8\u7684\u4e00\u7a2e\u52a0\u5bc6\u65b9\u5f0f\uff0c\u56e0\u70ba\u5728\u81ea\u7136\u8a9e\u8a00\u4e2d\u4e00\u4e9b\u8a5e\u7684\u983b\u7387<\/a>\u5fc5\u7136\u6703\u9ad8\u65bc\u53e6\u5916\u7684\u8a5e\uff0c\u53ef\u4ee5\u901a\u904e\u983b\u7387\u5206\u6790\uff08frequency analysis\uff09\u9032\u884c\u7834\u89e3\u3002<\/p>\n\n\n
\n
\"\"\/<\/figure>\n<\/div>\n\n\n
\u7dad\u5409\u5c3c\u4e9e\u5bc6\u78bc<\/strong><\/h4>\n\n\n\n
\u76f8\u8f03\u4e4b\u4e0b\uff0c\u7dad\u5409\u5c3c\u4e9e\u5bc6\u78bc<\/strong>\uff08Vigen\u00e8re Cipher\uff09\u5247\u662f\u591a\u8868\u52a0\u5bc6<\/strong>\uff08polyalphabetic cipher\uff09\u7684\u4e00\u500b\u5178\u578b\u4f8b\u5b50\uff0c\u53ef\u4ee5\u8996\u4e4b\u70ba\u591a\u500b\u51f1\u6492\u5bc6\u78bc\u7684\u7d44\u5408\uff0c\u4ee5\u4e0b\u9019\u500b\u88ab\u7a31\u70ba\u7dad\u5409\u5c3c\u4e9e\u65b9\u683c\u7684\u8868\u683c\u88ab\u61c9\u7528\u5728\u9019\u7a2e\u52a0\u5bc6\u65b9\u6cd5\u4e2d\uff1a<\/p>\n\n\n\n
\u6b64\u8655\u7c21\u55ae\u5f15\u7528\u4e00\u4e0b\u7dad\u57fa\u4e2d\u4f7f\u7528\u5230\u7684\u4f8b\u5b50\uff1a<\/p>\n\n\n\n
Plain: I LOVE CRYPTOGRAPHY\nKey: W ORDW ORDWORDWORDW\nCipher: E ZFYA QIBLHFJNOGKU<\/code><\/pre>\n\n\n\n
\u6ce2\u96f7\u8cbb\u5bc6\u78bc<\/strong><\/h4>\n\n\n\n
\u6ce2\u96f7\u8cbb\u5bc6\u78bc<\/strong>\uff08Playfair cipher\uff09\u662f\u6700\u70ba\u8457\u540d\u7684\u4e00\u7a2e\u591a\u5b57\u6bcd\u52a0\u5bc6\u65b9\u6cd5\u3002\u5b83\u5c07\u660e\u6587\u8996\u70ba\u55ae\u500b\u6574\u9ad4\u7684\u55ae\u5143\u653e\u5728\u4e00\u5e45\u5716\u4e2d\uff0c\u4e26\u5c07\u6574\u500b\u55ae\u5143\u8f49\u63db\u70ba\u5bc6\u6587\u5716\uff0c\u6b64\u8655\u7684\u300c\u5716\u300d\u901a\u5e38\u662f\u6307\u4e00\u500b 5×5 \u7684\u77e9\u9663\u3002<\/p>\n\n\n\n
\u9078\u64c7\u5bc6\u9470\u4e4b\u5f8c\uff0c\u5c07\u5bc6\u9470\u7684\u5b57\u6bcd\u9010\u500b\u586b\u5165\u8a72 5\u00d75 \u7684\u77e9\u9663\u5167\uff0c\u5b57\u6bcd\u4e0d\u80fd\u91cd\u8907\uff0c\u82e5\u9047\u91cd\u8907\u5247\u8df3\u904e\u3002\u586b\u5b8c\u5bc6\u9470\u4e4b\u5f8c\u8b1b\u5269\u9918\u7684\u82f1\u6587\u5b57\u6bcd\u4f9d\u9806\u5e8f\u586b\u5165\uff0c\u56e0\u70ba\u4e00\u5171\u53ea\u6709 25 \u500b\u7a7a\u9593\uff0c\u4e00\u822c\u6703\u5c07 Q \u53bb\u9664\u6216\u5c07 I \u548c J \u8996\u4f5c\u540c\u4e00\u5b57\uff08\u4f8b\u5b50\u4f7f\u7528\u5f8c\u8005\uff09\u3002<\/p>\n\n\n\n
\u52a0\u5bc6\u6642\uff0c\u61c9\u8a72\u628a\u6240\u6709\u5b57\u6bcd\u5206\u70ba\u5169\u500b\u4e00\u7d44\uff0c\u5982\u679c\u6700\u5f8c\u6709\u4e00\u500b\u5b57\u6bcd\u843d\u55ae\uff0c\u5247\u6dfb\u4e0a X \u4f5c\u70ba\u642d\u914d\u3002\u7136\u5f8c\u6309\u4ee5\u4e0b\u898f\u5247\uff0c\u5c0b\u627e\u6bcf\u5169\u500b\u5b57\u6bcd\u5c0d\u61c9\u7684\u5bc6\u6587\u4ee5\u5be6\u73fe\u52a0\u5bc6\uff1a<\/p>\n\n\n\n
    \n
  1. \u5982\u679c\u5169\u500b\u5b57\u6bcd\u4e26\u975e\u540c\u884c\u540c\u5217\uff0c\u5c07\u56db\u500b\u5b57\u6bcd\u7d44\u6210\u77e9\u5f62\uff0c\u53d6\u660e\u6587\u5c0d\u89d2\u8655\u7684\u5b57\u6bcd\u4f5c\u70ba\u5bc6\u6587\u3002<\/li>\n\n\n\n
  2. \u5982\u679c\u5169\u500b\u5b57\u6bcd\u5728\u540c\u4e00\u6a6b\u5217\uff0c\u53d6\u9019\u5169\u500b\u5b57\u6bcd\u53f3\u65b9\u7684\u5b57\u6bcd\uff08\u82e5\u5b57\u6bcd\u5728\u6700\u53f3\u65b9\u5247\u53d6\u6700\u5de6\u65b9\u7684\u5b57\u6bcd\uff09\u3002<\/li>\n\n\n\n
  3. \u5982\u679c\u5169\u500b\u5b57\u6bcd\u5728\u540c\u4e00\u76f4\u884c\uff0c\u53d6\u9019\u5169\u500b\u5b57\u6bcd\u4e0b\u65b9\u7684\u5b57\u6bcd\uff08\u82e5\u5b57\u6bcd\u5728\u6700\u4e0b\u65b9\u5247\u53d6\u6700\u4e0a\u65b9\u7684\u5b57\u6bcd\uff09\u3002<\/li>\n<\/ol>\n\n\n\n
    \u73fe\u5728\u5047\u8a2d\u660e\u6587\u662f”Nice to meet you”\uff0c\u9996\u5148\u5169\u5169\u5206\u7d44\uff0c\u5f97\u5230”NI CE TO ME ET YO UX”\u3002\u5047\u8a2d\u7528 Monarchy <\/em>\u4e00\u8a5e\u4f5c\u70ba\u5bc6\u9470\uff0c\u6309\u4e0a\u8ff0\u898f\u5247\u586b\u5165\uff1a<\/p>\n\n\n\n
    \"\"\/<\/figure>\n\n\n\n
    \u6211\u5011\u5c31\u80fd\u5f97\u5230\u5bc6\u6587\uff1aAGELPRCLKLHNVZ\u3002<\/p>\n\n\n\n
    \u79fb\u9805\u5f0f\u5bc6\u78bc<\/strong><\/h3>\n\n\n\n
    \u79fb\u9805\u5f0f\u5bc6\u78bc\u4e0d\u6539\u8b8a\u660e\u6587\u672c\u8eab\uff0c\u800c\u662f\u4f9d\u7167\u67d0\u7a2e\u898f\u5247\u6539\u8b8a\u660e\u6587\u4e2d\u7684\u6392\u5217\u3002<\/p>\n\n\n\n
    \u4e2d\u570b\u5f0f\u5bc6\u78bc<\/strong><\/h4>\n\n\n\n
    \u4e2d\u570b\u5f0f\u5bc6\u78bc\uff08Chinese cipher\uff09\u7684\u898f\u5247\u662f\u5c07\u660e\u6587\u6309\u5f9e\u53f3\u5f80\u5de6\u3001\u4e0a\u4e0b\u4ea4\u66ff\u5beb\u51fa\u4e00\u6bb5\u65b0\u7684\u5b57\u6bcd\u6392\u5217\u3002\u4f8b\u5982\u660e\u6587\u662f\uff1aTHE DOG RAN FAR\uff0c\u5247\u6309\u6b64\u898f\u5247\u53ef\u4ee5\u5beb\u70ba\uff1a<\/p>\n\n\n\n
     R R G T\n A A O H  \n F N D E  <\/code><\/pre>\n\n\n\n
    \u5bc6\u6587\u5247\u6309\u7167\u6163\u7528\u7684\u5f9e\u5de6\u5f80\u53f3\u3001\u5f9e\u4e0a\u5f80\u4e0b\u7684\u95b2\u8b80\u9806\u5e8f\u5beb\u4f5c\uff1aRRGT AAOH FNDE\u3002<\/p>\n\n\n\n
    <\/p>\n\n\n\n
    \u4e0b\u4e00\u7bc7\uff1a\u5bc6\u78bc\u5b78\uff082\uff09\uff1a Modern Block Ciphers<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
    \u524d\u8a00\uff1a\u4e00\u9ede\u5ee2\u8a71 \u7a0b\u5e8f\u733f\u7684\u535a\u5ba2\u597d\u50cf\u90fd\u662f\u7528\u4f86\u5beb\u6280\u8853\u6587\u7684\uff0c\u53ea\u6709\u6211\u4e00\u76f4\u5728\u9375\u653f\uff0c\u6240\u4ee5\u5fc3\u8840\u4f86\u6f6e\u60f3\u5beb\u6280\u8853\u6587\u8a66\u4e00\u8a66\u3002\u6211\u5c0d WordPress \u52a0\u4e0a\u76ee\u524d\u6b63\u5728\u4f7f\u7528\u7684\u524d\u7aef\u4e3b\u9ad4\u7684\u8868\u73fe\u4e26\u6c92\u6709\u4fe1\u5fc3\uff0c\u50cf\u4ee3\u78bc\u9ad8\u4eae\u4e4b\u985e\u7684\u64cd\u4f5c\u4e5f\u7121\u6cd5\u8655\u7406\u7684\u5f88\u597d\uff0c\u6240\u4ee5\u6e96\u5099\u5148\u8ac7\u8ac7\u6bd4\u8f03\u7406\u8ad6\u5c11\u4ee3\u78bc\u7684\u5bc6\u78bc\u5b78\u9019\u500b\u4e3b\u984c\uff0c\u9019\u4e5f\u662f\u500b\u4eba\u6bd4\u8f03\u6709\u8208\u8da3\u7684\u4e00\u500b\u9818\u57df\u3002 \u53e4\u5178\u5bc6\u78bc\uff08Classical cipher\uff09\uff0c\u9867\u540d\u601d\u7fa9\uff0c\u5c31\u662f\u6b77\u53f2\u4e0a\u66fe\u4f7f\u7528\u7684\u4e00\u4e9b\u52a0\u5bc6\u65b9\u5f0f\uff0c\u5927\u591a\u5df2\u4e0d\u518d\u4f7f\u7528\u3002\u4e0d\u904e\u4ecb\u7d39\u5b83\u5011\u6709\u52a9\u65bc\u6211\u5011\u4e86\u89e3\u5bc6\u78bc\u5b78\u7684\u767c\u5c55\u6b77\u53f2\u4ee5\u53ca\u8a8d\u8b58\u4e00\u4e9b\u57fa\u672c\u7684\u52a0\u5bc6\u601d\u8def\u3002\u53e4\u5178\u5bc6\u78bc\u4e3b\u8981\u6709\u66ff\u63db\u5f0f\u5bc6\u78bc\u548c\u79fb\u9805\u5f0f\u5bc6\u78bc\u5169\u5927\u985e\u3002 \u66ff\u63db\u5f0f\u5bc6\u78bc \u66ff\u63db\u5f0f\u5bc6\u78bc\uff08Substitution ciphers\uff09\uff0c\u610f\u6307\u660e\u6587\u4e2d\u7684\u5185\u5bb9\u901a\u904e\u5b57\u6bcd\u6216\u5b57\u6bcd\u7fa4\u88ab\u7cfb\u7d71\u6027\u5730\u66ff\u63db\u70ba\u5176\u4ed6\u5185\u5bb9\uff0c\u5f62\u6210\u5bc6\u6587\u3002 \u51f1\u6492\u5bc6\u78bc \u51f1\u6492\u5bc6\u78bc\uff08Caesar cipher\uff09\u662f\u6700\u70ba\u4eba\u719f\u77e5\u7684\u4e00\u7a2e\u66ff\u63db\u5f0f\u5bc6\u78bc\uff0c\u6700\u65e9\u51fa\u73fe\u5728 Gallic wars \u4e2d\u7528\u65bc\u8ecd\u4e8b\u76ee\u7684\u3002\u5b83\u9084\u6709\u53e6\u4e00\u500b\u540d\u5b57\u53eb Caesar shift\uff0c\u610f\u601d\u5c31\u5f88\u660e\u986f\u4e86\u2014\u2014\u901a\u904e\u79fb\u4f4d\uff08shift\uff09\u4f86\u9054\u6210\u66ff\u63db\u7684\u76ee\u7684\u3002\u6bd4\u5982\u4e00\u4e32\u660e\u6587”ABC”\uff0c\u7528”D”\u66ff\u4ee3”A”\u3001”E”\u66ff\u4ee3”B”\u3001”F”\u66ff\u4ee3”C”\uff0c\u5247\u6703\u5f97\u5230\u5bc6\u6587”DEF”\uff0c\u6211\u5011\u53ef\u4ee5\u7406\u89e3\u70ba\uff0c\u660e\u6587\u300c\u53f3\u300d\u79fb\u4e86\u4e09\u4f4d\u5f97\u5230\u4e86\u5bc6\u6587\u3002 \u591a\u8aac\u7121\u76ca\uff0c\u76f4\u63a5\u770b\u4e00\u500b\u4f8b\u5b50\uff1a \u539f\u6587\u4e2d\u7684\u6bcf\u500b\u5b57\u6bcd\u90fd\u5411\u53f3\u79fb\u52d5\u4e86\u4e09\u4f4d\uff0c\u5f9e\u800c\u7522\u751f\u4e86\u5bc6\u6587\uff0c\u66ff\u63db\u904e\u7a0b\u9075\u5faa\u4e0b\u8868\uff1a \u57fa\u65bc\u6b64\uff0c\u6211\u5011\u53ef\u4ee5\u7528\u6578\u5b78\u65b9\u5f0f\u8868\u9054\u660e\u6587\u8207\u5bc6\u6587\u4e4b\u9593\u7684\u95dc\u4fc2\uff1a \u51f1\u6492\u5bc6\u78bc\u7e3d\u5171\u53ea\u6709 25 \u7a2e\u79fb\u4f4d\u65b9\u6cd5\uff0c\u5f88\u5bb9\u6613\u901a\u904e\u66b4\u529b\uff08Brute Force\uff09\u7834\u89e3\uff0c\u7c21\u7c21\u55ae\u55ae\u679a\u8209\u6240\u6709\u53ef\u80fd\u7684\u60c5\u6cc1\u4fbf\u80fd\u5f97\u5230\u660e\u6587\u3002 \u55ae\u8868\u52a0\u5bc6 \u55ae\u8868\u52a0\u5bc6\uff08monoalphabetic cipher\uff09\u56b4\u683c\u5b9a\u7fa9\u4e0a\u662f\u51f1\u6492\u5bc6\u78bc\u7684\u6bcd\u96c6\uff0c\u5373\u51f1\u6492\u5bc6\u78bc\u4e5f\u662f\u55ae\u8868\u52a0\u5bc6\u7684\u4e00\u7a2e\u3002\u4e0d\u904e\u6b64\u8655\u8a9e\u5883\u4e0b\u7684\u55ae\u8868\u52a0\u5bc6\uff0c\u662f\u6307\u5c0d\u51f1\u6492\u5bc6\u78bc\u7684\u4e00\u7a2e\u6539\u826f\u65b9\u5f0f\uff0c\u5b83\u5c0d\u6574\u500b\u660e\u6587\u9032\u884c\u66ff\u63db\uff0c\u800c\u4e0d\u662f\u66ff\u63db\u9010\u500b\u5b57\u6bcd\uff0c\u9019\u610f\u5473\u8457\u55ae\u8868\u52a0\u5bc6\u9700\u8981\u4e00\u500b\u8207\u660e\u6587\u76f8\u540c\u9577\u5ea6\u7684\u5bc6\u9470\u3002 \u96d6\u7136\u6392\u5217\u7d44\u5408\u7684\u53ef\u80fd\u6027\u8b8a\u5f97\u975e\u5e38\u591a\uff0c\u4f46\u4ecd\u7136\u662f\u98a8\u96aa\u5f88\u9ad8\u7684\u4e00\u7a2e\u52a0\u5bc6\u65b9\u5f0f\uff0c\u56e0\u70ba\u5728\u81ea\u7136\u8a9e\u8a00\u4e2d\u4e00\u4e9b\u8a5e\u7684\u983b\u7387\u5fc5\u7136\u6703\u9ad8\u65bc\u53e6\u5916\u7684\u8a5e\uff0c\u53ef\u4ee5\u901a\u904e\u983b\u7387\u5206\u6790\uff08frequency analysis\uff09\u9032\u884c\u7834\u89e3\u3002 \u7dad\u5409\u5c3c\u4e9e\u5bc6\u78bc \u76f8\u8f03\u4e4b\u4e0b\uff0c\u7dad\u5409\u5c3c\u4e9e\u5bc6\u78bc\uff08Vigen\u00e8re Cipher\uff09\u5247\u662f\u591a\u8868\u52a0\u5bc6\uff08polyalphabetic cipher\uff09\u7684\u4e00\u500b\u5178\u578b\u4f8b\u5b50\uff0c\u53ef\u4ee5\u8996\u4e4b\u70ba\u591a\u500b\u51f1\u6492\u5bc6\u78bc\u7684\u7d44\u5408\uff0c\u4ee5\u4e0b\u9019\u500b\u88ab\u7a31\u70ba\u7dad\u5409\u5c3c\u4e9e\u65b9\u683c\u7684\u8868\u683c\u88ab\u61c9\u7528\u5728\u9019\u7a2e\u52a0\u5bc6\u65b9\u6cd5\u4e2d\uff1a \u6b64\u8655\u7c21\u55ae\u5f15\u7528\u4e00\u4e0b\u7dad\u57fa\u4e2d\u4f7f\u7528\u5230\u7684\u4f8b\u5b50\uff1a \u6ce2\u96f7\u8cbb\u5bc6\u78bc \u6ce2\u96f7\u8cbb\u5bc6\u78bc\uff08Playfair cipher\uff09\u662f\u6700\u70ba\u8457\u540d\u7684\u4e00\u7a2e\u591a\u5b57\u6bcd\u52a0\u5bc6\u65b9\u6cd5\u3002\u5b83\u5c07\u660e\u6587\u8996\u70ba\u55ae\u500b\u6574\u9ad4\u7684\u55ae\u5143\u653e\u5728\u4e00\u5e45\u5716\u4e2d\uff0c\u4e26\u5c07\u6574\u500b\u55ae\u5143\u8f49\u63db\u70ba\u5bc6\u6587\u5716\uff0c\u6b64\u8655\u7684\u300c\u5716\u300d\u901a\u5e38\u662f\u6307\u4e00\u500b 5×5 \u7684\u77e9\u9663\u3002 \u9078\u64c7\u5bc6\u9470\u4e4b\u5f8c\uff0c\u5c07\u5bc6\u9470\u7684\u5b57\u6bcd\u9010\u500b\u586b\u5165\u8a72 5\u00d75 \u7684\u77e9\u9663\u5167\uff0c\u5b57\u6bcd\u4e0d\u80fd\u91cd\u8907\uff0c\u82e5\u9047\u91cd\u8907\u5247\u8df3\u904e\u3002\u586b\u5b8c\u5bc6\u9470\u4e4b\u5f8c\u8b1b\u5269\u9918\u7684\u82f1\u6587\u5b57\u6bcd\u4f9d\u9806\u5e8f\u586b\u5165\uff0c\u56e0\u70ba\u4e00\u5171\u53ea\u6709 25 \u500b\u7a7a\u9593\uff0c\u4e00\u822c\u6703\u5c07 Q \u53bb\u9664\u6216\u5c07 I \u548c J \u8996\u4f5c\u540c\u4e00\u5b57\uff08\u4f8b\u5b50\u4f7f\u7528\u5f8c\u8005\uff09\u3002 \u52a0\u5bc6\u6642\uff0c\u61c9\u8a72\u628a\u6240\u6709\u5b57\u6bcd\u5206\u70ba\u5169\u500b\u4e00\u7d44\uff0c\u5982\u679c\u6700\u5f8c\u6709\u4e00\u500b\u5b57\u6bcd\u843d\u55ae\uff0c\u5247\u6dfb\u4e0a X \u4f5c\u70ba\u642d\u914d\u3002\u7136\u5f8c\u6309\u4ee5\u4e0b\u898f\u5247\uff0c\u5c0b\u627e\u6bcf\u5169\u500b\u5b57\u6bcd\u5c0d\u61c9\u7684\u5bc6\u6587\u4ee5\u5be6\u73fe\u52a0\u5bc6\uff1a \u73fe\u5728\u5047\u8a2d\u660e\u6587\u662f”Nice to […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,23,18],"tags":[31,34,78,87],"class_list":["post-1738","post","type-post","status-publish","format-standard","hentry","category-all","category-23","category-18","tag-classical-cipher","tag-cryptography","tag-78","tag-87"],"_links":{"self":[{"href":"https:\/\/www.zttofficial.com\/index.php?rest_route=\/wp\/v2\/posts\/1738","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zttofficial.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zttofficial.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zttofficial.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zttofficial.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1738"}],"version-history":[{"count":5,"href":"https:\/\/www.zttofficial.com\/index.php?rest_route=\/wp\/v2\/posts\/1738\/revisions"}],"predecessor-version":[{"id":2729,"href":"https:\/\/www.zttofficial.com\/index.php?rest_route=\/wp\/v2\/posts\/1738\/revisions\/2729"}],"wp:attachment":[{"href":"https:\/\/www.zttofficial.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1738"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zttofficial.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1738"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zttofficial.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1738"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}