{"id":8125,"date":"2024-04-22T20:01:01","date_gmt":"2024-04-22T12:01:01","guid":{"rendered":""},"modified":"2024-04-22T20:01:01","modified_gmt":"2024-04-22T12:01:01","slug":"\u8ba1\u7f51\u5b66\u4e60\u7b14\u8bb0\u5341\u4e5d.\u7f51\u7edc\u5b89\u5168\u57fa\u672c\u539f\u7406","status":"publish","type":"post","link":"https:\/\/mushiming.com\/8125.html","title":{"rendered":"\u8ba1\u7f51\u5b66\u4e60\u7b14\u8bb0\u5341\u4e5d.\u7f51\u7edc\u5b89\u5168\u57fa\u672c\u539f\u7406"},"content":{"rendered":"
\u76ee\u5f55<\/strong><\/p>\n \n \u7f51\u7edc\u5b89\u5168\u57fa\u672c\u6982\u5ff5<\/p>\n \u62df\u4eba\u573a\u666f: Alice\u3001Bob\u3001Trudy<\/p>\n \u7f51\u7edc\u5b89\u5168\u5a01\u80c1<\/p>\n \u653b\u51fb\u8005\u884c\u4e3a<\/p>\n \u653b\u51fb\u7684\u4e00\u4e9b\u65b9\u5f0f\u548c\u5bf9\u7b56<\/p>\n \u6620\u5c04<\/p>\n \u5206\u7ec4\u55c5\u63a2<\/p>\n IP\u6b3a\u9a97<\/p>\n DOS\u62d2\u7edd\u670d\u52a1<\/p>\n \u5bc6\u7801\u5b66\u57fa\u7840<\/p>\n \u5bc6\u7801\u5b66(cryptography)\u672f\u8bed<\/p>\n \u5bf9\u79f0\u5bc6\u94a5\u52a0\u5bc6<\/p>\n \u516c\u5f00\u5bc6\u94a5\u52a0\u5bc6<\/p>\n \u6fc0\u6d3b\u6210\u529f\u6559\u7a0b\u52a0\u5bc6\u65b9\u6cd5<\/p>\n \u4f20\u7edf\u52a0\u5bc6\u65b9\u6cd5<\/p>\n \u66ff\u4ee3\u5bc6\u7801<\/p>\n \u6362\u4f4d(transpositions)\u5bc6\u7801<\/p>\n \u73b0\u4ee3\u52a0\u5bc6\u6280\u672f<\/p>\n \u6d41\u5bc6\u7801<\/p>\n \u5206\u7ec4\u5bc6\u7801<\/p>\n \u6570\u636e\u52a0\u5bc6\u6807\u51c6: DES<\/p>\n \u9ad8\u7ea7\u52a0\u5bc6\u6807\u51c6AES<\/p>\n \u516c\u94a5\u5bc6\u7801\u5b66\u3001RSA\u52a0\u5bc6<\/p>\n RSA\u7684\u5b9e\u9645\u5e94\u7528<\/p>\n \u8eab\u4efd\u8ba4\u8bc1(Authentication)<\/p>\n \u534f\u8baeap1.0<\/p>\n \u534f\u8baeap2.0<\/p>\n \u534f\u8baeap3.0<\/p>\n \u534f\u8baeap3.1<\/p>\n ap4.0<\/p>\n ap5.0<\/p>\n \u62a5\u6587\u5b8c\u6574\u6027<\/p>\n \u5bc6\u7801\u6563\u5217\u51fd\u6570<\/p>\n \u6563\u5217\u51fd\u6570\u7b97\u6cd5<\/p>\n \u62a5\u6587\u6458\u8981(Message digests)<\/p>\n \u62a5\u6587\u8ba4\u8bc1(\u9a8c\u8bc1\u62a5\u6587\u7684\u662f\u5426\u88ab\u7be1\u6539)<\/p>\n \u62a5\u6587\u8ba4\u8bc1\u7801MAC<\/p>\n \u6570\u5b57\u7b7e\u540d<\/p>\n \u8fd9\u4e00\u7ae0\u8282\uff0c\u8bb2\u653b\u51fb\u65b9\u5f0f\u3001\u52a0\u5bc6\u65b9\u5f0f\u3001\u62a5\u6587\u6458\u8981\u53ef\u4ee5\u5b66\u4e60\uff0c\u5f80\u540e\u7684\u6570\u5b57\u7b7e\u540d\u5c31\u4e0d\u7528\u770b\u4e86\uff0c\u8d8a\u770b\u8d8a\u4e71\uff0c\u770b\u6781\u5ba2\u65f6\u95f4\u7684https\u7ae0\u8282\u66f4\u6e05\u6670\u3002<\/p>\n<\/p>\n <\/p>\n <\/p>\n <\/p>\n <\/p>\n <\/p>\n \u62d2\u7edd\u670d\u52a1\uff0c\u8ba9\u670d\u52a1\u5668\u6ca1\u6709\u8db3\u591f\u7684cpu\u6216\u8005\u5e26\u5bbd\u53bb\u5de5\u4f5c<\/p>\n <\/p>\n <\/p>\n \u55c5\u63a2\uff08Sniffers\uff09\u4e00\u822c\u662f\u6307\u4f7f\u7528\u55c5\u63a2\u5668\u5bf9\u6570\u636e\u6d41\u7684\u6570\u636e\u622a\u83b7\u4e0e\u5206\u7ec4\u5206\u6790\u3002\u55c5\u63a2\uff08Sniffers\uff09\u5b89\u88c5\u4e86\u55c5\u63a2\u5668\u7684\u8ba1\u7b97\u673a\u80fd\u591f\u63a5\u6536\u5c40\u57df\u7f51\u4e2d\u8ba1\u7b97\u673a\u53d1\u51fa\u7684\u6570\u636e\u5305\uff0c\u5e76\u5bf9\u8fd9\u4e9b\u6570\u636e\u8fdb\u884c\u5206\u6790\u3002\u4ee5\u592a\u7f51\u4e2d\u662f\u57fa\u4e8e\u5e7f\u64ad\u65b9\u5f0f\u4f20\u9001\u6570\u636e\u7684\uff0c\u6240\u6709\u7684\u7269\u7406\u4fe1\u53f7\u90fd\u8981\u7ecf\u8fc7\u4e3b\u673a\u8282\u70b9\u3002TCP\/IP \u534f\u8bae\u6808\u4e2d\u7684\u5e94\u7528\u534f\u8bae\u5927\u591a\u6570\u660e\u6587\u5728\u7f51\u7edc\u4e0a\u4f20\u8f93\uff0c\u660e\u6587\u6570\u636e\u53ef\u80fd\u4f1a\u5305\u542b\u4e00\u4e9b\u654f\u611f\u4fe1\u606f(\u5982\u8d26\u53f7\u3001\u5bc6\u7801\u3001\u94f6\u884c\u5361\u53f7\u7b49\uff09\u3002\u4f7f\u7528\u55c5\u63a2\u5de5\u5177\u540e\uff0c\u8ba1\u7b97\u673a\u5219\u80fd\u63a5\u6536\u6240\u6709\u6d41\u7ecf\u672c\u5730\u8ba1\u7b97\u673a\u7684\u6570\u636e\u5305\uff0c\u4ece\u800c\u5b9e\u73b0\u76d7\u53d6\u654f\u611f\u4fe1\u606f\u3002\u7531\u4e8e\u55c5\u63a2\u5668\u7684\u9690\u853d\u6027\u597d\uff0c\u53ea\u662f\u88ab\u52a8\u63a5\u6536\u6570\u636e\uff0c\u800c\u4e0d\u5411\u5916\u53d1\u9001\u6570\u636e\uff0c\u6240\u4ee5\u5728\u4f20\u8f93\u6570\u636e\u7684\u8fc7\u7a0b\u4e2d\uff0c\u96be\u4ee5\u89c9\u5bdf\u5230\u6709\u4eba\u76d1\u542c\u3002<\/p>\n \u4ee5\u592a\u7f51\u4e2d\u662f\u57fa\u4e8e\u5e7f\u64ad\u65b9\u5f0f\u4f20\u9001\u6570\u636e\u7684\uff0c\u6240\u6709\u7684\u7269\u7406\u4fe1\u53f7\u90fd\u8981\u7ecf\u8fc7\u4e3b\u673a\u8282\u70b9\u3002\u4ee5\u592a\u7f51\u4ea4\u6362\u673a\u6709\u81ea\u5b66\u4e60\u7684\u8fc7\u7a0b\uff0c\u81ea\u5b66\u4e60\u4e2d\u4f1a\u6cdb\u6d2a\uff0c\u5bfc\u81f4\u4e3b\u673a\u6536\u5230\u4e0d\u5c5e\u4e8e\u81ea\u5df1\u7684\u5e27\uff0c\u6240\u4ee5\u55c5\u63a2\u6709\u53ef\u80fd\u62ff\u5230\u5176\u4ed6\u4e3b\u673a\u7684\u5305<\/strong><\/p>\n <\/p>\n <\/p>\n \u4e4b\u524d\u5b66\u8fc7tcp\u4e09\u6b21\u63e1\u624b\uff0c\u7b2c\u4e00\u6b21\u63e1\u624b\u670d\u52a1\u7aef\u4f1a\u5206\u914d\u8d44\u6e90\uff0c\u5927\u91cf\u5411\u670d\u52a1\u5668\u53d1\u9001\u7b2c\u4e00\u6b21\u63e1\u624b\u8ba9\u670d\u52a1\u5668\u8017\u5c3d\u8d44\u6e90\uff0c\u5c31\u662fSYB\u653b\u51fb<\/p>\n <\/p>\n \u6784\u5efa\u50f5\u5c38\u7f51\u7edc\u63a7\u5236\u4e00\u4e9b\u4e3b\u673a\uff0c\u7136\u540e\u63a7\u5236\u50f5\u5c38\u4e3b\u673a\u5411\u76ee\u6807\u4e3b\u673a\u653b\u51fb<\/p>\n <\/p>\n <\/p>\n <\/p>\n \u6709\u4e00\u79cd\u5bf9\u7b56\u662fSYN cookie\uff0c\u670d\u52a1\u5668\u5728\u7b2c\u4e00\u6b21\u63e1\u624b\u4e0d\u4f1a\u5efa\u7acb\u8d44\u6e90\uff0c\u4f46\u8fd4\u56de\u7684\u62a5\u6587\u5e8f\u53f7\u662f hash (\u6e90IP\u5730\u5740\uff0c\u76ee\u7684IP\u5730\u5740\uff0c \u6e90\u7aef\u53e3\u53f7\uff0c\u76ee\u7684\u7aef\u53e3\u53f7\uff0cR\uff09R\u662f\u670d\u52a1\u5668\u7aef\u4ea7\u751f\u7684\u6570\uff0c\u5982\u679c\u7b2c\u4e09\u6b21\u63e1\u624b\u7684\u5e8f\u53f7\u6b63\u786e\u3001\u548c\u4e4b\u524d\u7ed9\u7684\u62a5\u6587\u5e8f\u53f7\u4e00\u81f4\u624d\u4f1a\u5206\u914d\u8d44\u6e90\u3002<\/p>\n <\/p>\n \u5bc6\u7801\u5b66\u7684\u6700\u57fa\u672c\u5185\u5bb9<\/p>\n \u5f88\u591a\u52a0\u5bc6\u7b97\u6cd5\u662f\u516c\u5171\u7684\uff0c\u8c01\u90fd\u77e5\u9053\uff0c\u5149\u9760\u7b97\u4e0d\u4e0d\u591f\uff0c\u9700\u8981\u5229\u7528\u53c2\u6570\u6216\u89c4\u5219\u52a0\u5bc6<\/p>\n <\/p>\n <\/p>\n \u516c\u94a5\u662f\u516c\u5f00\u7684\uff0c\u8c01\u90fd\u53ef\u4ee5\u77e5\u9053\uff0c\u79c1\u94a5\u662f\u79c1\u5bc6\u7684\uff0c\u516c\u94a5\u52a0\u5bc6\u3001\u79c1\u94a5\u89e3\u5bc6\u3002<\/p>\n <\/p>\n \u7edf\u8ba1\u5206\u6790\uff1a\u5982\u4e00\u4e9b\u5b57\u6bcd\u7ec4\u5408\u662f\u6709\u51fa\u73b0\u6982\u7387\u7684\uff0c\u901a\u8fc7\u6982\u7387\u53bb\u5206\u6790\u3002<\/p>\n \u5b57\u6bcd\u66ff\u4ee3\u52a0\u5bc6\uff1a\u77e5\u9053\u5b57\u6bcd\u7684\u4e92\u76f8\u66ff\u4ee3\u5173\u7cfb\uff0c\u5c31\u76f8\u5f53\u4e8e\u6fc0\u6d3b\u6210\u529f\u6559\u7a0b\u4e86<\/p>\n <\/p>\n \u51ef\u6492\u5bc6\u7801\uff1a\u56fa\u5b9a\u7528\u8be5\u5b57\u6bcd\u540e\u9762\u7684\u7b2ck\u4e2a\u5b57\u6bcd\u66ff\u4ee3\uff0c\u66ff\u4ee3\u5173\u7cfb\u662f\u56fa\u5b9a\u7684\uff0c\u5b89\u5168\u6027\u5f88\u4f4e\u3002<\/p>\n \u5355\u7801\u66ff\u4ee3\uff1a\u56fa\u5b9a\u4e24\u4e2a\u5b57\u6bcd\u95f4\u7684\u66ff\u4ee3\u5173\u7cfb\uff0ca\u7528m\u66ff\u4ee3<\/p>\n <\/p>\n \u591a\u739b\u66ff\u4ee3\uff1a\u4e24\u4e2aa\u53ef\u80fd\u4f1a\u88ab\u4e0d\u540c\u7684\u5b57\u6bcd\u66ff\u4ee3\u3002\u4e0b\u9762\u4f8b\u5b50\uff0c\u7b2c\u4e00\u4e2aa\u7528f\u66ff\u4ee3\uff0c\u7b2c\u4e8c\u4e2aa\u7528t\u66ff\u4ee3<\/p>\n <\/p>\n \u5148\u5206\u6210\u51e0\u7ec4\uff0c\u6bcf\u7ec4\u6709\u4e2a\u7f6e\u6362\u89c4\u5219\uff0c\u628ailoveyou \u5206\u6210\u4e24\u7ec4\uff0c\u5206\u522b\u6309\u7167\u89c4\u5219f\u7f6e\u6362<\/p>\n <\/p>\n \u5217\u7f6e\u6362\uff1a4\u5217\u77e9\u9635\uff0c\u89c4\u5219(2,3,1,4)\u5148\u8f93\u51fa2\u5217\u3001\u518d3\u5217.. <\/p>\n \u89e3\u5bc6\uff0c\u5b57\u7b26\u4e32\u957f\u5ea6\u9664\u4ee54=3\uff0c\u65b0\u77e9\u9635\uff1a3\u5217\uff0c\u6309\u7167\u89c4\u5219\uff0c\u628a\u5bc6\u6587\u7684\u7b2c\u4e00\u4e32 3\u4e2a\u5b57\u6bcdooo\u5f53\u505a\u77e9\u9635\u7684\u7b2c2\u884c\uff0c\u7b2c\u4e8c\u4e32bvu\u5f53\u505a\u77e9\u9635\u7684\u7b2c\u4e09\u884c...<\/p>\n <\/p>\n \u7528\u5355\u6b21\u6765\u4ee3\u66ff\u79d8\u94a5\uff0c\u7b97\u6cd5\u4e0d\u53d8<\/p>\n <\/p>\n z0z1z2\u53ef\u4ee5\u662f\u5b57\u8282\u3001\u6216bit\u3002\u7528z\u5bf9\u6570\u636e\u52a0\u5bc6\uff0c\u52a0\u5bc6\u65b9\u5f0f\u662f\u5f02\u6216\u8fd0\u7b97<\/p>\n <\/p>\n <\/p>\n \u5206\u7ec4\u79d8\u94a5\u52a0\u5bc6\u7684\u65b9\u5f0f\u53ef\u80fd\u662f\u524d\u9762\u7684\u6362\u4f4d\u7b49\u7b49\u3002<\/p>\n <\/p>\n feistel\u52a0\u5bc6\u5f88\u591a\u8f6e<\/p>\n <\/p>\n des\u52a0\u5bc6\u7684\u5386\u53f2<\/p>\n <\/p>\n <\/p>\n \u628a\u660e\u6587\u5206\u7ec4\u540e\uff0c\u6309\u7f6e\u6362\u8868\u7ec4\u5408\uff0c\u6bd4\u5982\u7b2c58\u7ec4\u653e\u5230\u7b2c\u4e00\u7ec4<\/p>\n <\/p>\n \u4e00\u8f6eDES\u52a0\u5bc6\u8fc7\u7a0b\uff1a\u7136\u540e\u5206\u6210\u5de6\u53f3\u4e24\u90e8\u5206\uff0c\u53f3\u8fb9R\u4f5c\u4e3a\u4e0b\u4e00\u8f6e\u7684L\uff0c\u5de6\u8fb9L\u7ecf\u8fc7\u51fd\u6570f\u8ba1\u7b97\u5f97\u5230\u4e0b\u4e00\u8f6e\u7684R\u3002\u7ee7\u7eed\u5faa\u73af\u3002\u51fd\u6570f\u4f1a\u7528\u5230\u5b50\u79d8\u94a5\uff0c\u79d8\u94a5\u7531\u6700\u521d\u7684\u79d8\u94a5\u538b\u7f29\u53d8\u6362\u800c\u6765\uff0c\u4e0b\u4e00\u8f6e\u7684\u79d8\u94a5\u8ddf\u672c\u8f6e\u79d8\u94a5\u6709\u5173<\/p>\n <\/p>\n des\u7684\u5b89\u5168\u9690\u60a3<\/p>\n <\/p>\n <\/p>\n \u5bf9\u79f0\u5bc6\u94a5\u52a0\u5bc6\uff1a<\/p>\n \u516c\u5f00\u5bc6\u94a5\u52a0\u5bc6\uff1a<\/p>\n \u4e0d\u80fd\u6839\u636e\u516c\u94a5\u8ba1\u7b97\u51fa\u79c1\u94a5\uff01<\/p>\n <\/p>\n <\/p>\n \u91cd\u8981\u6027\u8d28<\/p>\n <\/p>\n rsa\u5b89\u5168\u6027<\/p>\n <\/p>\n \u56e0\u4e3aRSA\u8ba1\u7b97\u91cf\u8fc7\u5927\uff0c\u5b9e\u9645\u5e94\u7528\u4e2dRSA\u548c\u5bf9\u79f0\u79d8\u94a5\u7ed3\u5408\u4f7f\u7528\u3002\u5728\u5efa\u7acb\u8fde\u63a5\u65f6\uff0c\u7528RSA\u516c\u94a5\u52a0\u5bc6\uff0c\u628a\u5bf9\u79f0\u79d8\u94a5\u4f20\u9001\u7ed9\u5bf9\u65b9\uff0c\u4e0b\u6b21\u53d1\u9001\u6570\u636e\u65f6\uff0c\u53cc\u65b9\u4f7f\u7528\u5bf9\u79f0\u79d8\u94a5\u8fdb\u884c\u52a0\u5bc6\u89e3\u5bc6\uff0cRSA\u53ea\u662f\u4e3a\u4e86\u4f20\u8f93\u5bf9\u79f0\u79d8\u94a5\u3002https\u5c31\u662f\u8fd9\u6837<\/p>\n <\/p>\n \u5728\u7f51\u7edc\u4e2d\u5982\u4f55\u8ba4\u8bc1\u8eab\u4efd\u3002<\/p>\n \u76ee\u6807: Bob\u5e0c\u671bAlice\u201c\u8bc1\u660e\u201d\u5979\u7684\u8eab\u4efd<\/p>\n <\/p>\n <\/p>\n \u58f0\u660e\u8eab\u4efd\u65f6\uff0c\u4f20\u9012\u6e90IP\u5730\u5740\uff0c\u4f46\u6709\u53ef\u80fd\u51fa\u73b0IP\u6b3a\u9a97<\/p>\n <\/p>\n <\/p>\n \u58f0\u660e\u65f6\u8981\u6c42\u53d1\u9001\u53e3\u4ee4\uff0c\u5373\u5bc6\u7801\u3002<\/p>\n <\/p>\n \u4f46\u6709\u53ef\u80fd\u88ab\u55c5\u63a2\u7834\u574f\uff0cTrudy \u55c5\u63a2Alice \u7684\u5206\u7ec4(\u55c5\u63a2\u662fTrudy\u62ff\u5230\u4e86Alice\u7684\u5206\u7ec4\uff0c\u4ece\u4e2d\u53d6\u51fa\u53e3\u4ee4<\/strong>)\uff0c\uff0cTrudy\u518d\u6839\u636e\u53e3\u4ee4\u548cbob\u901a\u4fe1<\/p>\n <\/p>\n \u4e3a\u4e86\u9632\u6b62\u55c5\u63a2\uff0cAlice\u628a\u53e3\u4ee4\u52a0\u5bc6\u540e\u518d\u4f20\u8f93<\/p>\n <\/p>\n \u4f46\u8fd8\u6709\u53ef\u80fd\u88ab \u56de\u653e\u653b\u51fb\u3002 \u56de\u8bbf\u5c31\u662fTrudy\u8bb0\u5f55\u4e86Alice\u5206\u7ec4\uff0c\u7528\u8fd9\u4e2a\u5206\u7ec4\u53d1\u9001\u7ed9BOB\uff0c\u9a97bob\u53d1\u9001\u6570\u636e\u7ed9Trudy<\/p>\n <\/p>\n \u4e00\u6b21\u6027\u968f\u673a\u6570\u3002\u5047\u8bbe\u53cc\u65b9\u6709\u4e86\u5171\u4eab\u79d8\u94a5\uff0c\u5728\u6536\u5230\u53e3\u4ee4\u540e\uff0cBob\u7ed9Alice\u53d1\u4e2a\u968f\u673a\u6570R\uff0cAlice\u52a0\u5bc6\u540e\u53d1\u7ed9Bob\uff0c\u4f46\u5171\u4eab\u79d8\u94a5\u4ece\u54ea\u6765\uff1f\u8bf4\u767d\u4e86\u5c31\u662f\u4e8c\u6b21\u8ba4\u8bc1\u3002<\/p>\n \u5982\u679cAlice\u53d1\u9001\u4e86\u5206\u7ec4 \u63d0\u4f9b\u4e86\u53e3\u4ee4\uff0ctrudy\u56de\u653e\u653b\u51fb\u8bb0\u5f55\u4e86\u5206\u7ec4\uff0c\u4f46trudy\u4e0d\u77e5\u9053\u79d8\u94a5\uff0c\u6240\u4ee5\u65e0\u6cd5\u52a0\u5bc6\u3002<\/p>\n <\/p>\n Bob\u8ddfAlice\u7d22\u53d6\u516c\u94a5\uff0c\u7136\u540e\u4e92\u76f8\u53d1\u9001\u6570\u636e\u3002<\/p>\n \u8d8a\u8bb2\u8d8a\u7cca\u6d82\uff0c\u4e4b\u524d\u5df2\u7ecf\u53d1\u9001\u4e86\u4e00\u6b21\u53e3\u4ee4\uff0c\u73b0\u5728\u53c8\u8981\u7528\u79d8\u94a5\u8bc1\u5b9e\u5bf9\u65b9\u8eab\u4efd\u3002<\/strong><\/p>\n \u8fd9\u8bb2\u7684\u6709\u95ee\u9898\uff0c\u9996\u5148\u516c\u94a5\u53d1\u9001\u6709\u53ef\u80fd\u88ab\u622a\u53d6\uff0c\u5176\u6b21Truedy\u5b8c\u5168\u53ef\u4ee5\u628a\u81ea\u5df1\u7684\u516c\u94a5\u7ed9Bob\uff0c\u53cd\u6b63trudy\u4e4b\u524d\u56de\u653e\u653b\u51fb\u4e86 \u53e3\u4ee4\u5206\u7ec4\u3002\u76f4\u63a5\u7528https\u4e0d\u5c31\u5b8c\u4e86\u4e48\uff0c\u53bbca\u8ba4\u8bc1\u8bc1\u4e66\u5c31\u5b8c\u4e86<\/span>\u3002<\/strong><\/p>\n <\/p>\n <\/p>\n \u62a5\u6587\u5b8c\u6574\u6027\u4e0d\u5149\u662f\u6709\u6ca1\u6709\u88ab\u7be1\u6539\uff0c\u8fd8\u5305\u62ec\u8eab\u4efd\u8ba4\u8bc1\u3001\u9884\u9632\u4f2a\u9020\u3001\u62b5\u8d56<\/p>\n <\/p>\n \u4ee5\u4e0b\u662f\u767e\u5ea6\u767e\u79d1\uff1a<\/p>\n \u5bc6\u7801\u6563\u5217\u51fd\u6570\uff08Cryptographic hash function\uff09\uff0c\u53c8\u8bd1\u4e3a\u52a0\u5bc6\u6563\u5217\u51fd\u6570\uff0c\u662f\u6563\u5217\u51fd\u6570\u7684\u4e00\u79cd\u3002\u5b83\u88ab\u8ba4\u4e3a\u662f\u4e00\u79cd\u5355\u5411\u51fd\u6570\uff0c\u4e5f\u5c31\u662f\u8bf4\u6781\u5176\u96be\u4ee5\u7531\u6563\u5217\u51fd\u6570\u8f93\u51fa\u7684\u7ed3\u679c\uff0c\u56de\u63a8\u8f93\u5165\u7684\u6570\u636e\u662f\u4ec0\u4e48\u3002\u8fd9\u6837\u7684\u5355\u5411\u51fd\u6570\u88ab\u79f0\u4e3a\u201c\u73b0\u4ee3\u5bc6\u7801\u5b66\u7684\u9a6e\u9a6c\u201d\u3002\u8fd9\u79cd\u6563\u5217\u51fd\u6570\u7684\u8f93\u5165\u6570\u636e\uff0c\u901a\u5e38\u88ab\u79f0\u4e3a\u6d88\u606f\uff08message\uff09\uff0c\u800c\u5b83\u7684\u8f93\u51fa\u7ed3\u679c\uff0c\u7ecf\u5e38\u88ab\u79f0\u4e3a\u6d88\u606f\u6458\u8981\uff08message digest\uff09\u6216\u6458\u8981\uff08digest\uff09\u3002\u5728\u4fe1\u606f\u5b89\u5168\u4e2d\uff0c\u6709\u8bb8\u591a\u91cd\u8981\u7684\u5e94\u7528\uff0c\u90fd\u4f7f\u7528\u4e86\u5bc6\u7801\u6563\u5217\u51fd\u6570\u6765\u5b9e\u73b0\uff0c\u4f8b\u5982\u6570\u5b57\u7b7e\u540d\uff0c\u6d88\u606f\u8ba4\u8bc1\u7801<\/p>\n java Object hashCode\u5c31\u662f\u6563\u5217\u51fd\u6570\uff0c\u6563\u5217\u503c\u4e0d\u540c\uff0c\u539f\u59cb\u503c\u4e00\u5b9a\u4e0d\u540c\uff1b\u6563\u5217\u503c\u76f8\u540c\uff0c\u539f\u59cb\u503c\u4e0d\u4e00\u5b9a\u76f8\u540c<\/p>\n <\/p>\n \u4ee5\u4e0b\u662f\u8bfe\u7a0b\uff1a\u4e24\u4e2a\u8bf4\u6cd5\u77db\u76fe\u4e86\uff0c\u767e\u79d1\u4e0a\u6563\u5217\u503c\u6709\u53ef\u80fd\u76f8\u540c\uff0c\u8bfe\u7a0b\u4e0a\u8bf4\u51fd\u6570\u4e0d\u5141\u8bb8\u6563\u5217\u503c\u76f8\u540c<\/p>\n <\/p>\n <\/p>\n <\/p>\n \u7528\u6563\u5217\u51fd\u6570\uff0c\u8fd9\u91cc\u5c31\u8ba4\u4e3a\u6563\u5217\u503c\u4e0d\u4f1a\u76f8\u540c<\/p>\n <\/p>\n <\/p>\n \u6458\u8981\u4fdd\u8bc1\u9632\u7be1\u6539\uff0c\u518d\u52a0\u9a8c\u8bc1\u53d1\u9001\u8005\u8eab\u4efd\u3002<\/p>\n \u628a\u79d8\u94a5\u4e5f\u7528\u6563\u5217\u8ba1\u7b97\u3002\u524d\u63d0\u662f\u4f9d\u8d56\u4e8e\uff0c\u53cc\u65b9\u5df2\u7ecf\u5171\u4eab\u4e86\u79d8\u94a5\u3002<\/p>\n \u7f3a\u9677\u6709\u53ef\u80fd\u51fa\u73b0\u4f2a\u9020\uff0c\u4f2a\u9020\u5c31\u662f\u63a5\u53d7\u8005\u4e0d\u627f\u8ba4\u6216\u8005\u9020\u5047\uff0c\u770b\u4e0b\u4e00\u8282<\/p>\n <\/p>\n \u7be1\u6539\u53ef\u4ee5\u7528\u6458\u8981\u641e\u5b9a\u3002<\/p>\n \u5269\u4e0b\u7684\u5426\u8ba4\u3001\u4f2a\u9020\u3001\u5192\u5145\u90fd\u662f\u8eab\u4efd\u8ba4\u8bc1\u95ee\u9898\u3002<\/p>\n <\/p>\n \u7b7e\u540d\u8fc7\u7a0b\uff1a<\/p>\n <\/p>\n <\/p>\n \u540e\u9762\u7684\u5185\u5bb9\u8fd8\u6709CA\uff0c\u8bc1\u4e66\u7b49\u3002<\/p>\n \u4ece\u8eab\u4efd\u8ba4\u8bc1\u8fd9\u5757\uff0c\u770b\u6781\u5ba2\u65f6\u95f4\u7684\u66f4\u597d\uff0c\u8fd9\u91cc\u8bb2\u7684\u592a\u6d45\u592a\u4e71\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u8ba1\u7f51\u5b66\u4e60\u7b14\u8bb0\u5341\u4e5d.\u7f51\u7edc\u5b89\u5168\u57fa\u672c\u539f\u7406\u7f51\u7edc\u5b89\u5168\u57fa\u672c\u6982\u5ff5\u62df\u4eba\u573a\u666f:Alice\u3001Bob\u3001Trudy\u7f51\u7edc\u5b89\u5168\u5a01\u80c1\u653b\u51fb\u8005\u884c\u4e3a\u62d2\u7edd\u670d\u52a1\uff0c\u8ba9\u670d\u52a1\u5668\u6ca1...","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"_links":{"self":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/8125"}],"collection":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/comments?post=8125"}],"version-history":[{"count":0,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/8125\/revisions"}],"wp:attachment":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/media?parent=8125"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/categories?post=8125"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/tags?post=8125"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n\u7f51\u7edc\u5b89\u5168\u57fa\u672c\u6982\u5ff5<\/h2>\n
\u62df\u4eba\u573a\u666f: Alice\u3001Bob\u3001Trudy<\/h3>\n
\u7f51\u7edc\u5b89\u5168\u5a01\u80c1<\/h2>\n
\u653b\u51fb\u8005\u884c\u4e3a<\/h3>\n
\u653b\u51fb\u7684\u4e00\u4e9b\u65b9\u5f0f\u548c\u5bf9\u7b56<\/h3>\n
\u6620\u5c04<\/h4>\n
\u5206\u7ec4\u55c5\u63a2<\/h4>\n
IP\u6b3a\u9a97<\/h4>\n
DOS\u62d2\u7edd\u670d\u52a1<\/h4>\n
\u5bc6\u7801\u5b66\u57fa\u7840<\/h2>\n
\u5bc6\u7801\u5b66(cryptography)\u672f\u8bed<\/h3>\n
\u5bf9\u79f0\u5bc6\u94a5\u52a0\u5bc6<\/h4>\n
\u516c\u5f00\u5bc6\u94a5\u52a0\u5bc6<\/h4>\n
\u6fc0\u6d3b\u6210\u529f\u6559\u7a0b\u52a0\u5bc6\u65b9\u6cd5<\/h4>\n
\u4f20\u7edf\u52a0\u5bc6\u65b9\u6cd5<\/h3>\n
\u66ff\u4ee3\u5bc6\u7801<\/h4>\n
\u6362\u4f4d(transpositions)\u5bc6\u7801<\/h4>\n
\u73b0\u4ee3\u52a0\u5bc6\u6280\u672f<\/h3>\n
\u6d41\u5bc6\u7801<\/h4>\n
\u5206\u7ec4\u5bc6\u7801<\/h4>\n
\u6570\u636e\u52a0\u5bc6\u6807\u51c6: DES<\/h3>\n
\u9ad8\u7ea7\u52a0\u5bc6\u6807\u51c6AES<\/h4>\n
\u516c\u94a5\u5bc6\u7801\u5b66\u3001RSA\u52a0\u5bc6<\/h3>\n
\n
\n
RSA\u7684\u5b9e\u9645\u5e94\u7528<\/h4>\n
\u8eab\u4efd\u8ba4\u8bc1(Authentication)<\/h2>\n
\u534f\u8baeap1.0<\/h4>\n
\u534f\u8baeap2.0<\/h4>\n
\u534f\u8baeap3.0<\/h4>\n
\u534f\u8baeap3.1<\/h3>\n
ap4.0<\/h4>\n
ap5.0<\/h4>\n
\u62a5\u6587\u5b8c\u6574\u6027<\/h2>\n
\u5bc6\u7801\u6563\u5217\u51fd\u6570<\/h3>\n
\u6563\u5217\u51fd\u6570\u7b97\u6cd5<\/h4>\n
\u62a5\u6587\u6458\u8981(Message digests)<\/h3>\n
\u62a5\u6587\u8ba4\u8bc1(\u9a8c\u8bc1\u62a5\u6587\u7684\u662f\u5426\u88ab\u7be1\u6539)<\/h3>\n
\n
\u62a5\u6587\u8ba4\u8bc1\u7801MAC\uff08\uff09<\/h3>\n
\u6570\u5b57\u7b7e\u540d\uff08\u89e3\u51b3\u62a5\u6587\u5b8c\u6574\u6027\u5269\u4f59\u7684\u95ee\u9898\uff09<\/h2>\n
\n