{"id":6148,"date":"2022-07-04T16:00:31","date_gmt":"2022-07-04T08:00:31","guid":{"rendered":"http:\/\/123.57.164.21\/?p=6148"},"modified":"2022-11-25T21:27:07","modified_gmt":"2022-11-25T13:27:07","slug":"%e4%bb%80%e4%b9%88%e6%98%afmd5%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=6148","title":{"rendered":"\u4ec0\u4e48\u662fMD5\uff1f"},"content":{"rendered":"\n
\"\"<\/figure><\/div>\n\n\n\n

1.\u4ec0\u4e48\u662fMD5\uff1f<\/strong><\/p>\n\n\n\n

\n\n\n\n

MD5\u4fe1\u606f\u6458\u8981\u7b97\u6cd5\uff08\u82f1\u8bed\uff1aMD5 Message-Digest Algorithm\uff09\uff0c\u4e00\u79cd\u88ab\u5e7f\u6cdb\u4f7f\u7528\u7684\u5bc6\u7801\u6563\u5217\u51fd\u6570\uff0c\u53ef\u4ee5\u4ea7\u751f\u51fa\u4e00\u4e2a128\u4f4d\uff0816\u5b57\u8282\uff09\u7684\u6563\u5217\u503c\uff08hash value\uff091\uff0c\u7528\u4e8e\u786e\u4fdd\u4fe1\u606f\u4f20\u8f93\u5b8c\u6574\u4e00\u81f4\u3002MD5\u7531\u7f8e\u56fd\u5bc6\u7801\u5b66\u5bb6\u7f57\u7eb3\u5fb7\u00b7\u674e\u7ef4\u65af\u7279\uff08Ronald Linn Rivest\uff09\u8bbe\u8ba1\uff0c\u4e8e1992\u5e74\u516c\u5f00\uff0c\u7528\u4ee5\u53d6\u4ee3MD4\u7b97\u6cd5\u3002\u8fd9\u5957\u7b97\u6cd5\u7684\u7a0b\u5e8f\u5728 RFC 1321 \u6807\u51c6\u4e2d\u88ab\u52a0\u4ee5\u89c4\u8303\u30021996\u5e74\u540e\u8be5\u7b97\u6cd5\u88ab\u8bc1\u5b9e\u5b58\u5728\u5f31\u70b9\uff0c\u53ef\u4ee5\u88ab\u52a0\u4ee5\u7834\u89e3\uff0c\u5bf9\u4e8e\u9700\u8981\u9ad8\u5ea6\u5b89\u5168\u6027\u7684\u6570\u636e\uff0c\u4e13\u5bb6\u4e00\u822c\u5efa\u8bae\u6539\u7528\u5176\u4ed6\u7b97\u6cd5\uff0c\u5982SHA-2\u30022004\u5e74\uff0c\u8bc1\u5b9eMD5\u7b97\u6cd5\u65e0\u6cd5\u9632\u6b62\u78b0\u649e\uff08collision\uff09\uff0c\u56e0\u6b64\u4e0d\u9002\u7528\u4e8e\u5b89\u5168\u6027\u8ba4\u8bc1\uff0c\u5982SSL\u516c\u5f00\u5bc6\u94a5\u8ba4\u8bc1\u6216\u662f\u6570\u5b57\u7b7e\u540d\u7b49\u7528\u9014\u3002<\/p>\n\n\n\n

MD5\uff08\u6d88\u606f\u6458\u8981\u7b97\u6cd5\uff09\u6563\u5217\u7b97\u6cd5\u662f\u4e00\u79cd\u5355\u5411\u52a0\u5bc6\u51fd\u6570\uff0c\u5b83\u63a5\u53d7\u4efb\u610f\u957f\u5ea6\u7684\u6d88\u606f\u4f5c\u4e3a\u8f93\u5165\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u56fa\u5b9a\u957f\u5ea6\u7684\u6458\u8981\u503c\u4f5c\u4e3a\u8f93\u51fa\uff0c\u7528\u4e8e\u9a8c\u8bc1\u539f\u59cb\u6d88\u606f\u3002<\/p>\n\n\n\n

MD5\u6563\u5217\u51fd\u6570\u6700\u521d\u8bbe\u8ba1\u4e3a\u7528\u4f5c\u9a8c\u8bc1\u6570\u5b57\u7b7e\u540d\u7684\u5b89\u5168\u52a0\u5bc6\u6563\u5217\u7b97\u6cd5\u3002\u4f46\u662fMD5\u5df2\u88ab\u5f03\u7528\uff0c\u9664\u4e86\u7528\u4f5c\u9a8c\u8bc1\u6570\u636e\u5b8c\u6574\u6027\u548c\u68c0\u6d4b\u610f\u5916\u6570\u636e\u635f\u574f\u7684\u975e\u52a0\u5bc6\u6821\u9a8c\u548c\u4ee5\u5916\u7684\u7528\u9014\u3002<\/p>\n\n\n\n

\u901a\u4fd7\u6765\u8bf4\uff0cMD5\u5c31\u76f8\u5f53\u4e8e\u4e00\u4e2a\u6587\u4ef6\u7684\u8eab\u4efd\u8bc1\u53f7\u7801\uff0c\u4e0e\u6587\u4ef6\u81ea\u8eab\u662f\u7ed1\u5b9a\u5728\u4e00\u8d77\u7684\u3002\u5f53\u6587\u4ef6\u5185\u5bb9\u4e0d\u53d8\u3002MD5\u503c\u5c31\u4e0d\u4f1a\u53d8\u3002\u5f53\u6587\u4ef6\u5185\u5bb9\u6539\u53d8\u65f6\u3002MD5\u503c\u4e5f\u968f\u4e4b\u6539\u53d8\u3002\u6240\u4ee5MD5\u503c\u53ef\u4ee5\u7528\u6765\u8bc6\u522b\u6587\u4ef6\u662f\u5426\u5b8c\u6574\u3002<\/p>\n\n\n\n

\u6709\u65f6\u5019\u6709\u4e9b\u7f51\u7ad9\u5c01\u7981\u6587\u4ef6\u5c31\u662f\u9760MD5\u8fd9\u7c7b\u503c\u6765\u5c01\u7981\u6570\u636e\u7684\uff0c\u5728\u53d1\u73b0\u4e00\u4e2a\u6587\u4ef6\u8fdd\u89c4\u540e\uff0c\u4f1a\u91c7\u96c6\u8be5\u6587\u4ef6\u7684\u503c\uff0c\u7136\u540e\u53bb\u5339\u914d\u5176\u4ed6\u6587\u4ef6\u3002\u4ece\u800c\u5c01\u7981\u6240\u6709\u8fdd\u89c4\u6587\u4ef6\u3002\u6709\u5f88\u591a\u53ef\u4ee5\u6539MD5\u503c\u7684\u8f6f\u4ef6\u3002\u767e\u5ea6\u4e00\u4e0b\u5c31\u6709\u4e00\u5927\u5806\u3002\u5e76\u4e0d\u662f\u53ea\u6709MD5\u503c\u4e00\u79cd\u503c\u6765\u8bc6\u522b\u3002\u8fd8\u662f\u6709\u5176\u4ed6\u5f88\u591a\u7c7b\u578b\u7684\u6539\u5b8c\u540e\u5c31\u548c\u6587\u4ef6\u7ed1\u5b9a\u4e00\u8d77\u4e86\u3002<\/p>\n\n\n\n

2.md5\u6709\u4ec0\u4e48\u4f5c\u7528\uff1f<\/strong><\/p>\n\n\n\n

\n\n\n\n

\u4e00\u4e9b\u670b\u53cb\u4e0d\u662f\u5f88\u4e86\u89e3md5\u662f\u4ec0\u4e48\uff0c\u5176\u5b9e\uff0c\u5728\u8ba1\u7b97\u673a\u5b89\u5168\u9886\u57df\uff0cmd5\u662f\u4f7f\u7528\u6bd4\u8f83\u5e7f\u6cdb\u7684\u4e00\u79cd\u6563\u5217\u51fd\u6570\uff0c\u7528\u6765\u4fdd\u62a4\u4fe1\u606f\u4f20\u8f93\u7684\u5b8c\u6574\u6027\u3002\u90a3\u4e48\uff0cmd5\u6709\u4ec0\u4e48\u4f5c\u7528\u5462\uff1f\u4e0b\u9762\u672c\u6587\u9488\u5bf9md5\u662f\u4ec0\u4e48\uff0c\u4ee5\u53camd5\u7684\u4f5c\u7528\u505a\u4e2a\u7b80\u5355\u7684\u4ecb\u7ecd\u3002<\/p>\n\n\n\n

md5\u662f\u4e00\u79cd\u4fe1\u606f\u6458\u8981\u7b97\u6cd5\uff0c\u4e00\u79cd\u88ab\u5e7f\u6cdb\u4f7f\u7528\u7684\u5bc6\u7801\u6563\u5217\u51fd\u6570\uff0c\u53ef\u4ee5\u4ea7\u751f\u51fa\u4e00\u4e2a128\u4f4d\uff0816\u5b57\u8282\uff09\u7684\u6563\u5217\u503c\uff0c\u7528\u6765\u786e\u4fdd\u4fe1\u606f\u4f20\u8f93\u5b8c\u6574\u4e00\u81f4\u6027\u3002<\/p>\n\n\n\n

  • \u4f5c\u7528\u4e00\uff1a\u6570\u5b57\u7b7e\u540d<\/li><\/ul>\n\n\n\n

    MD5\u7684\u5178\u578b\u5e94\u7528\u662f\u5bf9\u4e00\u6bb5Message(\u5b57\u8282\u4e32)\u4ea7\u751ffingerprint(\u6307\u7eb9\uff09\uff0c\u4ee5\u9632\u6b62\u88ab\u201c\u7be1\u6539\u201d\u3002\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u6211\u5c06\u8fd9\u6bb5\u8bdd\u201cmd5\u662f\u4ec0\u4e48\uff0cmd5\u7684\u8fd9\u4e9b\u7528\u9014\u4f60\u90fd\u77e5\u9053\u5417\u201d\u5199\u5728\u4e00\u4e2a\u53eb read.txt\u6587\u4ef6\u4e2d\uff0c\u5e76\u5bf9\u8fd9\u4e2aread.txt\u4ea7\u751f\u4e00\u4e2aMD5\u7684\u503c\uff08\u5bc6\u6587\uff1a7a1189ca1650ef630a6c2b0206f42d8b\uff09\u5e76\u8bb0\u5f55\u5728\u6848\uff0c\u7136\u540e\u6211\u53ef\u4ee5\u4f20\u64ad\u8fd9\u4e2a\u6587\u4ef6\u7ed9\u522b\u4eba\uff0c\u522b\u4eba\u5982\u679c\u4fee\u6539\u4e86\u6587\u4ef6\u4e2d\u7684\u4efb\u4f55\u5185\u5bb9\uff0c\u90a3\u4e48\u6211\u5bf9\u8fd9\u4e2a\u6587\u4ef6\u91cd\u65b0\u8ba1\u7b97MD5\u65f6\u5c31\u4f1a\u53d1\u73b0\uff08\u4e24\u4e2aMD5\u503c\u4e0d\u76f8\u540c\uff09\u3002\u5982\u679c\u518d\u6709\u4e00\u4e2a\u7b2c\u4e09\u65b9\u7684\u8ba4\u8bc1\u673a\u6784\uff0c\u7528MD5\u8fd8\u53ef\u4ee5\u9632\u6b62\u6587\u4ef6\u4f5c\u8005\u7684\u201c\u62b5\u8d56\u201d\uff0c\u8fd9\u5c31\u662f\u6240\u8c13\u7684\u6570\u5b57\u7b7e\u540d\u5e94\u7528\u3002<\/p>\n\n\n\n

    • \u4f5c\u7528\u4e8c\uff1a\u4e00\u81f4\u6027\u9a8c\u8bc1<\/li><\/ul>\n\n\n\n

      MD5\u7684\u5178\u578b\u5e94\u7528\u662f\u5bf9\u4e00\u6bb5\u4fe1\u606f\uff08Message\uff09\u4ea7\u751f\u4fe1\u606f\u6458\u8981\uff08Message-Digest\uff09\uff0c\u4ee5\u9632\u6b62\u88ab\u7be1\u6539\u3002\u6bd4\u5982\uff0c\u5728Unix\u4e0b\u6709\u5f88\u591a\u8f6f\u4ef6\u5728\u4e0b\u8f7d\u7684\u65f6\u5019\u90fd\u6709\u4e00\u4e2a\u6587\u4ef6\u540d\u76f8\u540c\uff0c\u6587\u4ef6\u6269\u5c55\u540d\u4e3a.md5\u7684\u6587\u4ef6\uff0c\u5728\u8fd9\u4e2a\u6587\u4ef6\u4e2d\u901a\u5e38\u53ea\u6709\u4e00\u884c\u6587\u672c\uff0c\u5927\u81f4\u7ed3\u6784\u5982\uff1a<\/p>\n\n\n\n

      MD5 (tanajiya.tar.gz) = 38b8c2c1093dd0fec383a9d9ac940515<\/pre>\n\n\n\n
      MD5\u5c06\u6574\u4e2a\u6587\u4ef6\u5f53\u4f5c\u4e00\u4e2a\u5927\u6587\u672c\u4fe1\u606f\uff0c\u901a\u8fc7\u5176\u4e0d\u53ef\u9006\u7684\u5b57\u7b26\u4e32\u53d8\u6362\u7b97\u6cd5\uff0c\u4ea7\u751f\u4e86\u8fd9\u4e2a\u552f\u4e00\u7684MD5\u4fe1\u606f\u6458\u8981\u3002<\/p>\n\n\n\n
      • \u4f5c\u7528\u4e09\uff1a\u5b89\u5168\u8bbf\u95ee\u8ba4\u8bc1<\/li><\/ul>\n\n\n\n
        MD5\u8fd8\u5e7f\u6cdb\u7528\u4e8e\u64cd\u4f5c\u7cfb\u7edf\u7684\u767b\u5f55\u8ba4\u8bc1\u4e0a\uff0c\u5982Unix\u3001\u5404\u7c7bBSD\u7cfb\u7edf\u767b\u5f55\u5bc6\u7801\u3001\u6570\u5b57\u7b7e\u540d\u7b49\u8bf8\u591a\u65b9\u9762\u3002\u5982\u5728Unix\u7cfb\u7edf\u4e2d\u7528\u6237\u7684\u5bc6\u7801\u662f\u4ee5MD5\uff08\u6216\u5176\u5b83\u7c7b\u4f3c\u7684\u7b97\u6cd5\uff09\u7ecfHash\u8fd0\u7b97\u540e\u5b58\u50a8\u5728\u6587\u4ef6\u7cfb\u7edf\u4e2d\u3002\u5f53\u7528\u6237\u767b\u5f55\u7684\u65f6\u5019\uff0c\u7cfb\u7edf\u628a\u7528\u6237\u8f93\u5165\u7684\u5bc6\u7801\u8fdb\u884cMD5 Hash\u8fd0\u7b97\uff0c\u7136\u540e\u518d\u53bb\u548c\u4fdd\u5b58\u5728\u6587\u4ef6\u7cfb\u7edf\u4e2d\u7684MD5\u503c\u8fdb\u884c\u6bd4\u8f83\uff0c\u8fdb\u800c\u786e\u5b9a\u8f93\u5165\u7684\u5bc6\u7801\u662f\u5426\u6b63\u786e\u3002\u901a\u8fc7\u8fd9\u6837\u7684\u6b65\u9aa4\uff0c\u7cfb\u7edf\u5728\u5e76\u4e0d\u77e5\u9053\u7528\u6237\u5bc6\u7801\u7684\u660e\u7801\u7684\u60c5\u51b5\u4e0b\u5c31\u53ef\u4ee5\u786e\u5b9a\u7528\u6237\u767b\u5f55\u7cfb\u7edf\u7684\u5408\u6cd5\u6027\u3002\u8fd9\u53ef\u4ee5\u907f\u514d\u7528\u6237\u7684\u5bc6\u7801\u88ab\u5177\u6709\u7cfb\u7edf\u7ba1\u7406\u5458\u6743\u9650\u7684\u7528\u6237\u77e5\u9053\u3002<\/p>\n\n\n\n
        3.MD5\u771f\u7684\u5b89\u5168\u4e48\uff1f<\/strong><\/p>\n\n\n\n
        \n\n\n\n
        \u4e86\u89e3MD5\u7684\u90fd\u77e5\u9053\uff0c\u5b83\u662f\u4e0d\u53ef\u80fd\u9006\u7684\uff0c\u5373\u6211\u4eec\u6ca1\u529e\u6cd5\u628aMD5\u7801\u8fd8\u539f\u5bf9\u5e94\u7684\u539f\u6587\u3002\u9053\u7406\u5f88\u7b80\u5355\uff0c\u4efb\u610f\u957f\u5ea6\u7684\u6570\u636e\u7ecf\u8fc7MD5\u5904\u7406\u540e\uff0c\u6240\u5305\u542b\u7684\u4fe1\u606f\u91cf\u5df2\u7ecf\u5927\u5927\u51cf\u5c11\u3002\u8981\u662f\u53ef\u4ee5\u8fd8\u539f\u7684\u8bdd\uff0c\u90a3MD5\u5c82\u4e0d\u662f\u6210\u4e3a\u538b\u7f29\u7b97\u6cd5\uff1f\uff1f\u6240\u4ee5\u8fd9\u91cc\u5c31\u4f1a\u7ed9\u5f88\u591a\u4eba\u9020\u6210\u8bef\u89e3\uff0c\u4ee5\u4e3a\u4e0d\u53ef\u9006\u5c31\u662f\u4e0d\u53ef\u7834\u89e3\uff0c\u7684\u786e\uff0c\u590d\u6742\u4e9b\u7684\u5bc6\u7801\u5728\u4e00\u4e9bMD5\u5728\u7ebf\u7834\u89e3\u7f51\u7ad9\u662f\u7834\u89e3\u4e0d\u4e86\u7684\uff0c\u76f8\u5bf9\u6765\u8bf4\u662f\u5b89\u5168\u7684\u3002\u53ef\u662f\uff0c\u9488\u5bf9\u4e00\u4e2a\u6709\u5b89\u5168\u9690\u60a3\u7684\u95ee\u9898\u6765\u8bf4\uff0c\u76f8\u5bf9\u5b89\u5168\u5c31\u662f\u4e0d\u5b89\u5168\u3002\u968f\u7740\u79d1\u5b66\u6280\u672f\u6c34\u5e73\u7684\u63d0\u5347\uff0cMD5\u5df2\u7ecf\u8d8a\u6765\u8d8a\u4e0d\u5b89\u5168\u4e86\uff01<\/p>\n\n\n\n
        4.MD5\u5982\u4f55\u88ab\u7834\u89e3\uff1f<\/strong><\/p>\n\n\n\n
        \n\n\n\n
        \u6709\u5f88\u591a\u79cd\u65b9\u6cd5\u53ef\u4ee5\u7834\u89e3\uff0c\u4e0d\u8fc7\u9700\u8981\u660e\u786e\u4e00\u70b9\uff0c\u8fd9\u91cc\u6240\u8c13\u7684\u7834\u89e3\uff0c\u5e76\u975e\u628a\u6458\u8981\u8fd8\u539f\u6210\u539f\u6587\u3002\u4e3a\u4ec0\u4e48\u5462\uff1f\u56e0\u4e3a\u56fa\u5b9a128\u4f4d\u7684\u6458\u8981\u662f\u6709\u7a77\u7684\uff0c\u800c\u539f\u6587\u6570\u91cf\u662f\u65e0\u7a77\u7684\uff0c\u6bcf\u4e00\u4e2a\u6458\u8981\u90fd\u53ef\u4ee5\u7531\u82e5\u5e72\u4e2a\u539f\u6587\u901a\u8fc7Hash\u5f97\u5230\u3002<\/p>\n\n\n\n
        \u5bf9\u4e8eMD5\u7684\u7834\u89e3\uff0c\u5b9e\u9645\u4e0a\u90fd\u5c5e\u4e8e\u3010\u78b0\u649e\u30113\u3002\u6bd4\u5982\u539f\u6587A\u901a\u8fc7MD5\u53ef\u4ee5\u751f\u6210\u6458\u8981M\uff0c\u6211\u4eec\u5e76\u4e0d\u9700\u8981\u628aX\u8fd8\u539f\u6210A\uff0c\u53ea\u9700\u8981\u627e\u5230\u539f\u6587B\uff0c\u751f\u6210\u540c\u6837\u7684\u6458\u8981M\u5373\u53ef\u3002<\/p>\n\n\n\n
        \u8bbeMD5\u7684\u54c8\u5e0c\u51fd\u6570\u662fH\uff08X\uff09\uff0c\u90a3\u4e48\uff1a\nH(A) = M\nH(B) = M\n\u4efb\u610f\u4e00\u4e2aB\u5373\u4e3a\u7834\u89e3\u7ed3\u679c\u3002\nB\u6709\u53ef\u80fd\u7b49\u4e8eA\uff0c\u4e5f\u53ef\u80fd\u4e0d\u7b49\u4e8eA\u3002\n\u7528\u4e00\u4e2a\u5f62\u8c61\u7684\u8bf4\u6cd5\uff0cA\u548cB\u7684MD5\u7ed3\u679c\u201c\u6b8a\u9014\u540c\u5f52\u201d\u3002\n<\/pre>\n\n\n\n

        MD5\u78b0\u649e\u901a\u5e38\u7528\u4e8e\u767b\u9646\u5bc6\u7801\u7684\u7834\u89e3\u3002\u5e94\u7528\u7cfb\u7edf\u7684\u6570\u636e\u5e93\u4e2d\u5b58\u50a8\u7684\u7528\u6237\u5bc6\u7801\u901a\u5e38\u90fd\u662f\u539f\u5bc6\u7801\u7684MD5\u54c8\u5e0c\u503c\uff0c\u6bcf\u5f53\u7528\u6237\u767b\u5f55\u65f6\uff0c\u9a8c\u7b7e\u8fc7\u7a0b\u5982\u4e0b\uff1a<\/p>\n\n\n\n
        \u5982\u679c\u6211\u4eec\u5f97\u5230\u4e86\u7528\u6237ABC\u7684\u5bc6\u7801\u54c8\u5e0c\u503cE10ADC3949BA59ABBE56E057F20F883E\uff0c\u5e76\u4e0d\u9700\u8981\u8fd8\u539f\u51fa\u539f\u5bc6\u7801123456\uff0c\u53ea\u9700\u8981\u201c\u78b0\u649e\u201d\u51fa\u53e6\u4e00\u4e2a\u539f\u6587654321\uff08\u53ea\u662f\u4e3e\u4f8b\uff09\u5373\u53ef\u3002<\/p>\n\n\n\n
        \u5047\u8bbe654321\u7684\u5bc6\u7801\u54c8\u5e0c\u503c\u4e5f\u662fE10ADC3949BA59ABBE56E057F20F883E\uff0c\u767b\u5f55\u65f6\uff0c\u5b8c\u5168\u53ef\u4ee5\u4f7f\u7528654321\u4f5c\u4e3a\u767b\u9646\u5bc6\u7801\uff0c\u6b3a\u9a97\u8fc7\u5e94\u7528\u7cfb\u7edf\u7684\u9a8c\u7b7e\u3002<\/p>\n\n\n\n
        2011\u5e74\uff0cIETF\u53d1\u5e03\u4e86RFC6151\u2014\u2014MD5\u6d88\u606f\u6458\u8981\u548cHMAC-MD5\u7b97\u6cd5\u7684\u6700\u65b0\u5b89\u5168\u8003\u8651\uff0c\u5176\u4e2d\u5f15\u7528\u4e86\u4e00\u4e9b\u6700\u8fd1\u9488\u5bf9MD5\u54c8\u5e0c\u503c\u7684\u653b\u51fb\u3002\u5b83\u63d0\u5230\u4e86\u4e00\u4e2a\u5728\u6807\u51c6\u7b14\u8bb0\u672c\u4e0a\u4e00\u5206\u949f\u6216\u66f4\u77ed\u7684\u65f6\u95f4\u5185\u4ea7\u751f\u54c8\u5e0c\u78b0\u649e\u7684\u653b\u51fb\uff0c\u4ee5\u53ca\u53e6\u4e00\u4e2a\u57282.6\u5343\u5146\u8d6b\u7684\u5954\u817e4\u7cfb\u7edf\u4e0a\u4ec5\u752810\u79d2\u5c31\u80fd\u4ea7\u751f\u78b0\u649e\u7684\u653b\u51fb\u3002\u56e0\u6b64\uff0cIETF\u5efa\u8bae\uff0c\u65b0\u7684\u534f\u8bae\u8bbe\u8ba1\u6839\u672c\u4e0d\u5e94\u8be5\u4f7f\u7528MD5\uff0c\u6700\u8fd1\u9488\u5bf9\u8be5\u7b97\u6cd5\u7684\u7814\u7a76\u62a8\u51fb\u5230\uff1a\u5728\u9700\u8981\u6297\u78b0\u649e\u7684\u5e94\u7528\u4e2d\u53d6\u6d88MD5\u7684\u4f7f\u7528\uff0c\u5982\u6570\u5b57\u7b7e\u540d\u3002<\/p>\n\n\n\n
        5.\u600e\u4e48\u9632\u6b62MD5\u88ab\u7834\u89e3\uff1f<\/strong><\/p>\n\n\n\n
        \n\n\n\n
        \u770b\u5b8c\u7b2c3\u70b9\u4f60\u5c31\u77e5\u9053\u4e86\uff0cMD5\u4e0d\u591f\u5b89\u5168\uff0c\u4f46\u662f\u5982\u679c\u4f60\u5bf9\u5b83\u4e00\u5f80\u60c5\u6df1\uff0c\u53ea\u60f3\u7528MD5\u7684\u8bdd\uff0c\u4e0d\u59a8\u53ef\u4ee5\u8bd5\u4e0b\u4ee5\u4e0b\u505a\u6cd5\uff1a<\/p>\n\n\n\n
        • \u591a\u91cd\u52a0\u5bc6<\/li><\/ul>\n\n\n\n
          \u6240\u8c13\u7684\u591a\u91cd\u52a0\u5bc6\uff0c\u987e\u540d\u601d\u4e49\uff0c\u5c31\u662f\u628a\u4f60\u8981\u52a0\u5bc6\u7684\u539f\u6587\u52a0\u5bc6\u6210MD5\u5bc6\u6587\uff0c\u7136\u540e\u518d\u4e00\u6b21\u5c06MD5\u5bc6\u6587\u52a0\u5bc6\u6210MD5\u5bc6\u6587\uff0c\u591a\u8bd5\u51e0\u6b21\uff0c\u4e00\u822c3\u6b21\u4ee5\u540e\uff0c\u5728\u7ebf\u7834\u89e3\u7f51\u7ad9\u5c31\u5339\u914d\u4e0d\u4e0a\u4e86\uff0c\u4f46\u662f\uff0c\u5339\u914d\u4e0d\u4e0a\u5c31\u4e0d\u4ee3\u8868\u8db3\u591f\u5b89\u5168\u5594\uff0c\u53ea\u662f\u4e0d\u5bb9\u6613\u88ab\u8f7b\u6613\u7834\u89e3\uff08\u56e0\u4e3a\u7b2c\u4e8c\u6b21\u8981\u7834\u89e3\u7684\u539f\u6587\u662f\u4e00\u4e2a32\u4f4d\u7684\u6570\u5b57\u5b57\u6bcd\u7684\u7ed3\u5408\uff0c\u4ee5\u6b64\u7c7b\u63a8\uff09\uff0c\u589e\u52a0\u7834\u89e3\u7684\u65f6\u95f4\u6210\u672c\u800c\u5df2\uff01<\/p>\n\n\n\n
          • \u52a0\u76d0\u52a0\u5bc6<\/li><\/ul>\n\n\n\n
            \u6bd4\u5982Java\u4e2d\u7684Md5Crypt.apr1Crypt(\"\u8981\u52a0\u5bc6\u7684\u5bc6\u6587\",\"\u81ea\u5b9a\u4e49\u76d0\u503c\")<\/code>\uff0c\u53ef\u4ee5\u591a\u91cd\u4f7f\u7528\uff0c\u81ea\u5b9a\u6382\u91cf\uff01<\/p>\n\n\n\n
            • \u4f7f\u7528\u590d\u6742\u5bc6\u7801\uff08\u5305\u542b\u6570\u5b57\u82f1\u6587\u5c0f\u6570\u70b9\u7b49\uff09<\/li><\/ul>\n\n\n\n
              \u7ecf\u8fc7\u53cd\u590d\u6d4b\u8bd5\uff0c\u4f7f\u7528\u590d\u6742\u7684\u5bc6\u7801\u4e5f\u80fd\u964d\u4f4e\u88ab\u7834\u89e3\u7684\u98ce\u9669\uff0c\u8fd9\u4e5f\u662f\u73b0\u5728\u5f88\u591a\u8f6f\u4ef6\u7cfb\u7edf\u90fd\u5f3a\u5236\u7528\u6237\u7684\u5bc6\u7801\u4e0d\u80fd\u4f4e\u4e8e16\u4f4d\u6570\uff0c\u4e14\u5e94\u5305\u542b\u6570\u5b57\u82f1\u6587\u5c0f\u6570\u70b9\u7b49\u7684\u539f\u56e0\u3002<\/p>\n\n\n\n
              • \u4e0d\u8981\u5728\u7f51\u7ad9\u4e2d\u663e\u793a\u5bc6\u7801\u5217\uff0c\u54ea\u6015\u662f\u52a0\u5bc6\u540e\u56de\u663e\u7684\uff0c\u4e5f\u4e0d\u53ef\u53d6\uff01<\/li><\/ul>\n\n\n\n
                \u8fd9\u4e00\u70b9\u5f88\u591a\u521d\u7ea7\u5f00\u53d1\u8005\u5f88\u5bb9\u6613\u72af\u9519\uff0c\u5728\u9875\u9762\u6570\u636e\u8868\u683c\u4e2d\u7ed1\u5b9a\u5bc6\u7801\u5217\u7ed9\u7528\u6237\u770b\uff0c\u53ef\u80fd\u53ea\u662f\u5355\u7eaf\u7684\u5c55\u793a\u6570\u636e\uff0c\u5374\u5ffd\u89c6\u4e86\u5bc6\u7801\u8fd9\u4e00\u70b9\u5bb9\u6613\u88ab\u653b\u7834\u7684\u98ce\u9669\u3002\u6bd4\u5982\u4e0b\u9762\u8fd9\u79cd\u60c5\u51b5\uff0c\u76f4\u63a5\u5728\u8868\u5355\u56de\u663e\u5bc6\u7801\uff0c\u867d\u7136\u662f\u4e0d\u53ef\u7f16\u8f91\u548c\u52a0\u5bc6\u7684\u72b6\u6001\uff0c\u4f46\u662f\u540c\u6837\u53ef\u4ee5\u8fdb\u884c\u7834\u89e3\uff0c\u8fd9\u70b9\u4f60\u968f\u4fbf\u627e\u4e2a\u6709\u7ecf\u9a8c\u7684\u524d\u7aef\u5f00\u53d1\u8005\u5e94\u8be5\u90fd\u4f1a\u3002<\/p>\n\n\n\n
                6.MD5 \u7684\u66ff\u4ee3\u54c1<\/strong><\/p>\n\n\n\n
                MD5\u7684\u4e00\u4e2a\u4e3b\u8981\u95ee\u9898\u662f\uff0c\u5f53\u4fe1\u606f\u54c8\u5e0c\u4ee3\u7801\u65e0\u610f\u4e2d\u88ab\u91cd\u590d\u65f6\uff0c\u5b83\u6709\u53ef\u80fd\u9020\u6210\u4fe1\u606f\u78b0\u649e\u3002MD5\u7684\u54c8\u5e0c\u4ee3\u7801\u4e32\u4e5f\u88ab\u9650\u5236\u5728128\u4f4d\u3002\u8fd9\u4f7f\u5f97\u5b83\u4eec\u6bd4\u540e\u6765\u7684\u5176\u4ed6\u54c8\u5e0c\u7801\u7b97\u6cd5\u66f4\u5bb9\u6613\u88ab\u7834\u89e3\u3002<\/p>\n\n\n\n
                MD5 \u7684\u66ff\u4ee3\u54c8\u5e0c\u4ee3\u7801\u5305\u62ec\u4ee5\u4e0b\u5185\u5bb9\uff1a<\/p>\n\n\n\n
                • \u5b89\u5168\u54c8\u5e0c\u7b97\u6cd51\uff08SHA-1\uff09<\/li><\/ul>\n\n\n\n
                  SHA-1\u7531\u7f8e\u56fd\u653f\u5e9c\u572820\u4e16\u7eaa90\u5e74\u4ee3\u5f00\u53d1\uff0cSHA-1\u5728\u8bbe\u8ba1\u6d88\u606f\u52a0\u5bc6\u7b97\u6cd5\u65f6\u4f7f\u7528\u4e86\u7c7b\u4f3cMD5\u7684\u6280\u672f\u3002\u4f46\u4e0eMD5\u7684128\u4f4d\u54c8\u5e0c\u503c\u957f\u5ea6\u76f8\u6bd4\uff0cSHA-1\u4ea7\u751f\u4e86\u66f4\u5b89\u5168\u7684160\u4f4d\u503c\u3002\u5c3d\u7ba1\u5982\u6b64\uff0cSHA-1\u4e5f\u6709\u4e00\u4e9b\u5f31\u70b9\uff0c\u4e5f\u6ca1\u6709\u88ab\u8bc1\u660e\u662f\u52a0\u5bc6\u7684\u6700\u7ec8\u7b97\u6cd5\u65b9\u6cd5\u3002\u5b89\u5168\u95ee\u9898\u5f00\u59cb\u51fa\u73b0\uff0c\u4fc3\u4f7f\u5fae\u8f6f\u7b49\u516c\u53f8\u505c\u6b62\u5728\u5176\u8f6f\u4ef6\u4e2d\u5bf9SHA-1\u7684\u652f\u6301\u3002<\/p>\n\n\n\n
                  • SHA-2\u54c8\u5e0c\u4ee3\u7801\u7cfb\u5217<\/li><\/ul>\n\n\n\n
                    SHA-2\u54c8\u5e0c\u7801\u662f\u7531\u7f8e\u56fd\u56fd\u5bb6\u5b89\u5168\u5c40\u57282001\u5e74\u521b\u5efa\u7684\u3002\u5b83\u4eec\u4ee3\u8868\u4e86\u4e0eSHA-1\u7684\u91cd\u5927\u533a\u522b\uff0c\u56e0\u4e3aSHA-2\u7684\u6d88\u606f\u52a0\u5bc6\u7b97\u6cd5\u66f4\u957f\uff0c\u66f4\u96be\u7834\u89e3\u3002SHA-2\u7cfb\u5217\u7b97\u6cd5\u63d0\u4f9b\u7684\u54c8\u5e0c\u503c\u957f\u5ea6\u4e3a224\u3001256\u3001384\u548c512\u6bd4\u7279\u3002\u5b83\u4eec\u4ee5\u5176\u6d88\u606f\u6458\u8981\u957f\u5ea6\u7684\u540d\u79f0\u800c\u95fb\u540d–\u4f8b\u5982\uff0cSHA-224\u548cSHA-256\u3002<\/p>\n\n\n\n
                    • \u5faa\u73af\u5197\u4f59\u68c0\u67e5\uff08CRC\uff09\u7801<\/li><\/ul>\n\n\n\n
                      CRC\u7801\u7ecf\u5e38\u88ab\u5efa\u8bae\u4f5c\u4e3aMD5\u7684\u53ef\u80fd\u66ff\u4ee3\u54c1\uff0c\u56e0\u4e3aMD5\u548cCRC\u90fd\u6267\u884c\u6563\u5217\u529f\u80fd\uff0c\u5e76\u4e14\u90fd\u63d0\u4f9b\u6821\u9a8c\u548c\u3002\u4f46\u4e24\u8005\u7684\u76f8\u4f3c\u6027\u5230\u6b64\u4e3a\u6b62\u3002\u4e00\u4e2a32\u4f4d\u7684CRC\u4ee3\u7801\u7528\u4e8e\u68c0\u6d4b\u6570\u636e\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u7684\u9519\u8bef\uff0c\u56e0\u6b64\u53ef\u4ee5\u8bc6\u522b\u635f\u574f\u6216\u4e22\u5931\u7684\u6570\u636e\u3002\u540c\u65f6\uff0cMD5\u662f\u4e00\u79cd\u5b89\u5168\u7684\u6563\u5217\u7b97\u6cd5\u548c\u52a0\u5bc6\u6563\u5217\u51fd\u6570\uff0c\u53ef\u4ee5\u68c0\u6d4b\u4e00\u4e9b\u6570\u636e\u635f\u574f\uff0c\u4f46\u4e3b\u8981\u7528\u4e8e\u6b63\u5728\u4f20\u8f93\u7684\u6570\u636e\u7684\u5b89\u5168\u52a0\u5bc6\u548c\u6570\u5b57\u8bc1\u4e66\u7684\u9a8c\u8bc1\u3002<\/p>\n\n\n\n
                      7.MD5 \u649e\u5e93<\/strong><\/p>\n\n\n\n
                      \n\n\n\n
                      \u4ece\u6280\u672f\u7684\u89d2\u5ea6\u6765\u8bf4\uff0cMD5\u771f\u7684\u5f88\u5b89\u5168\uff0c\u56e0\u4e3aMD5\u672c\u8eab\u662f\u4e0d\u53ef\u9006\u7684\uff0c\u56e0\u6b64\u6ca1\u6cd5\u89e3\u5bc6\uff0c\u9664\u4e86\u649e\u5e93\u8fd9\u6837\u7684\u4e00\u4e2a\u65b9\u5f0f\u3002\u5728\u5927\u6570\u636e\u65f6\u4ee3\uff0c\u968f\u610f\u751f\u6210\u51e0\u4e2a\u7ecf\u5e38\u4f7f\u7528\u7684\u5bc6\u7801\u7684MD5\u5bc6\u6587\uff0c\u7136\u540e\u5728\u767e\u5ea6\u4e0a\u641c\u7d22md5\u89e3\u5bc6\u7f51\u7ad9\uff0c\u7136\u540e\u628a\u5bc6\u6587\u590d\u5236\u7c98\u8d34\u8fdb\u53bb\uff0c\u968f\u610f\u4e00\u4e2amd5\u89e3\u5bc6\u53ef\u80fd\u90fd\u53ef\u4ee5\u89e3\u5bc6\u51fa\u6765\u3002<\/p>\n\n\n\n
                      \"\"<\/figure><\/div>\n\n\n\n
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                      \"\"
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