{"id":134206,"date":"2024-04-28T11:51:43","date_gmt":"2024-04-28T03:51:43","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/134206.html"},"modified":"2024-04-28T11:51:46","modified_gmt":"2024-04-28T03:51:46","slug":"java%e5%af%b9%e7%a7%b0%e5%8a%a0%e5%af%86%e7%ae%97%e6%b3%95%e6%9c%89%e5%93%aa%e4%ba%9b","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/134206.html","title":{"rendered":"java\u5bf9\u79f0\u52a0\u5bc6\u7b97\u6cd5\u6709\u54ea\u4e9b"},"content":{"rendered":"

\"java\u5bf9\u79f0\u52a0\u5bc6\u7b97\u6cd5\u6709\u54ea\u4e9b\"<\/p>\n

\u5bf9\u79f0\u52a0\u5bc6\u7b97\u6cd5\u662f\u52a0\u5bc6\u548c\u89e3\u5bc6\u4f7f\u7528\u76f8\u540c\u5bc6\u94a5\u7684\u52a0\u5bc6\u7b97\u6cd5\uff0cJava\u4e2d\u652f\u6301\u591a\u79cd\u5bf9\u79f0\u52a0\u5bc6\u7b97\u6cd5\uff0c\u5176\u4e2d\u5305\u62ecAES\u3001DES\u30013DES\uff08Triple DES\uff09\uff0c\u4ee5\u53caBlowfish\u7b49<\/strong>\u3002\u8fd9\u4e9b\u7b97\u6cd5\u90fd\u5728Java\u7684\u52a0\u5bc6\u6269\u5c55\uff08Java Cryptography Extension\uff0cJCE\uff09\u4e2d\u6709\u6240\u5b9e\u73b0\u3002\u5728\u4f17\u591a\u5bf9\u79f0\u52a0\u5bc6\u7b97\u6cd5\u4e2d\uff0cAES<\/strong>\uff08\u9ad8\u7ea7\u52a0\u5bc6\u6807\u51c6\uff09\u662f\u76ee\u524d\u5e7f\u6cdb\u63a8\u8350\u548c\u4f7f\u7528\u7684\u4e00\u79cd\u7b97\u6cd5\uff0c\u5b83\u4e0d\u4ec5\u5177\u6709\u5f88\u9ad8\u7684\u5b89\u5168\u6027\uff0c\u800c\u4e14\u8fd8\u63d0\u4f9b\u4e86\u4e0d\u9519\u7684\u52a0\u89e3\u5bc6\u6548\u7387\u3002<\/p>\n<\/p>\n

AES\u7b97\u6cd5\u4e8e2001\u5e74\u6210\u4e3a\u7f8e\u56fd\u56fd\u5bb6\u6807\u51c6\u6280\u672f\u7814\u7a76\u6240\u7684\u6807\u51c6\uff0c\u5e76\u4e14\u5f88\u5feb\u88ab\u5168\u4e16\u754c\u5e7f\u6cdb\u63a5\u53d7\u548c\u4f7f\u7528\u3002AES\u8bbe\u8ba1\u6709\u4e09\u79cd\u5bc6\u94a5\u957f\u5ea6\uff1a128\u3001192\u548c256\u4f4d\uff0c\u63d0\u4f9b\u4e86\u5f88\u597d\u7684\u7075\u6d3b\u6027\u548c\u5b89\u5168\u6027\u3002\u4e0eDES\u8fd9\u79cd\u8f83\u4e3a\u65e7\u7684\u52a0\u5bc6\u65b9\u5f0f\u76f8\u6bd4\uff0cAES\u80fd\u591f\u66f4\u6709\u6548\u5730\u62b5\u6297\u5404\u79cd\u5bc6\u7801\u653b\u51fb\uff0c\u5305\u62ec\u7a77\u4e3e\u653b\u51fb\u548c\u5bc6\u7801\u5206\u6790\u653b\u51fb\u3002<\/p>\n<\/p>\n

\u4e00\u3001AES<\/h3>\n<\/p>\n

AES\uff08\u9ad8\u7ea7\u52a0\u5bc6\u6807\u51c6\uff09\u662f\u76ee\u524d\u4f7f\u7528\u6700\u4e3a\u5e7f\u6cdb\u7684\u5bf9\u79f0\u52a0\u5bc6\u7b97\u6cd5\u4e4b\u4e00\u3002\u5b83\u53ef\u4ee5\u6709\u6548\u5730\u52a0\u5bc6\u5927\u91cf\u6570\u636e\uff0c\u5e76\u4e14\u5728\u591a\u79cd\u7f16\u7a0b\u8bed\u8a00\u548c\u5e73\u53f0\u4e2d\u90fd\u5f97\u5230\u4e86\u652f\u6301\u548c\u5b9e\u73b0\u3002<\/p>\n<\/p>\n

AES\u7b97\u6cd5\u63d0\u4f9b\u4e86\u4e09\u79cd\u5bc6\u94a5\u957f\u5ea6\uff1a128\u3001192\u548c256\u4f4d\u3002\u8f83\u957f\u7684\u5bc6\u94a5\u63d0\u4f9b\u4e86\u66f4\u9ad8\u7684\u5b89\u5168\u6027\uff0c\u4f46\u540c\u65f6\u4e5f\u610f\u5473\u7740\u52a0\u5bc6\u548c\u89e3\u5bc6\u7684\u8fc7\u7a0b\u9700\u8981\u6d88\u8017\u66f4\u591a\u7684\u8ba1\u7b97\u8d44\u6e90\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u5b89\u5168\u9700\u6c42\u548c\u7cfb\u7edf\u7684\u8ba1\u7b97\u80fd\u529b\u6765\u9009\u62e9\u5408\u9002\u7684\u5bc6\u94a5\u957f\u5ea6\u3002<\/p>\n<\/p>\n

\u4e3a\u4e86\u4fdd\u8bc1\u6570\u636e\u7684\u5b89\u5168\uff0cAES\u4f7f\u7528\u590d\u6742\u7684\u52a0\u5bc6\u673a\u5236\u548c\u591a\u8f6e\u52a0\u5bc6\u8fc7\u7a0b\u3002\u6bcf\u4e00\u8f6e\u7684\u52a0\u5bc6\u8fc7\u7a0b\u90fd\u5305\u62ec\u66ff\u4ee3\uff08SubBytes\uff09\u3001\u884c\u79fb\u4f4d\uff08ShiftRows\uff09\u3001\u5217\u6df7\u6dc6\uff08MixColumns\uff09\u548c\u8f6e\u5bc6\u94a5\u52a0\uff08AddRoundKey\uff09\u56db\u4e2a\u6b65\u9aa4\u3002\u8fd9\u4f7f\u5f97AES\u80fd\u591f\u63d0\u4f9b\u5f88\u9ad8\u7684\u5b89\u5168\u6027\uff0c\u8db3\u4ee5\u62b5\u6297\u76ee\u524d\u5df2\u77e5\u7684\u7edd\u5927\u591a\u6570\u7c7b\u578b\u7684\u5bc6\u7801\u653b\u51fb\u3002<\/p>\n<\/p>\n

\u4e8c\u3001DES<\/h3>\n<\/p>\n

DES\uff08\u6570\u636e\u52a0\u5bc6\u6807\u51c6\uff09\u662f\u4e00\u79cd\u8f83\u65e9\u7684\u52a0\u5bc6\u65b9\u6cd5\uff0c\u5176\u4f7f\u752856\u4f4d\u7684\u5bc6\u94a5\u5bf9\u6570\u636e\u8fdb\u884c\u52a0\u5bc6\u3002\u5c3d\u7ba1DES\u66fe\u7ecf\u662f\u6700\u5e7f\u6cdb\u4f7f\u7528\u7684\u52a0\u5bc6\u65b9\u6cd5\u4e4b\u4e00\uff0c\u4f46\u7531\u4e8e\u5176\u5bc6\u94a5\u957f\u5ea6\u76f8\u5bf9\u8f83\u77ed\uff0c\u5bfc\u81f4\u5176\u5bb9\u6613\u53d7\u5230\u7a77\u4e3e\u653b\u51fb\u3002<\/p>\n<\/p>\n

\u4e3a\u4e86\u589e\u5f3aDES\u7684\u5b89\u5168\u6027\uff0c3DES\uff08Triple DES\uff09\u88ab\u63d0\u51fa\u30023DES\u901a\u8fc7\u8fde\u7eed\u4e09\u6b21\u4f7f\u7528DES\u52a0\u5bc6\u7b97\u6cd5\uff0c\u6bcf\u6b21\u4f7f\u7528\u4e0d\u540c\u7684\u5bc6\u94a5\uff0c\u4ece\u800c\u6709\u6548\u63d0\u9ad8\u4e86\u5b89\u5168\u6027\u3002\u867d\u71363DES\u6bd4DES\u66f4\u4e3a\u5b89\u5168\uff0c\u4f46\u5176\u52a0\u5bc6\u548c\u89e3\u5bc6\u8fc7\u7a0b\u7684\u901f\u5ea6\u76f8\u5bf9\u8f83\u6162\uff0c\u8fd9\u4e5f\u9650\u5236\u4e86\u5176\u5728\u9700\u8981\u9ad8\u6548\u52a0\u5bc6\u5904\u7406\u7684\u573a\u666f\u4e2d\u7684\u5e94\u7528\u3002<\/p>\n<\/p>\n

\u4e09\u30013DES<\/h3>\n<\/p>\n

3DES\u662f\u5bf9DES\u52a0\u5bc6\u7b97\u6cd5\u7684\u4e00\u79cd\u6539\u8fdb\uff0c\u5176\u901a\u8fc7\u5c06\u6570\u636e\u4f9d\u6b21\u7ecf\u8fc7\u4e09\u6b21DES\u52a0\u5bc6\uff08\u6216\u89e3\u5bc6\uff09\u8fc7\u7a0b\uff0c\u4ee5\u6b64\u6765\u589e\u52a0\u52a0\u5bc6\u7684\u590d\u6742\u5ea6\u548c\u5b89\u5168\u6027\u30023DES\u53ef\u4ee5\u4f7f\u75282\u4e2a\u62163\u4e2a\u4e0d\u540c\u7684\u5bc6\u94a5\uff0c\u5f53\u4f7f\u75282\u4e2a\u5bc6\u94a5\u65f6\uff0c\u5176\u5b9e\u9645\u64cd\u4f5c\u4e3a\uff1a\u5148\u7528\u5bc6\u94a51\u52a0\u5bc6\uff0c\u7136\u540e\u7528\u5bc6\u94a52\u89e3\u5bc6\uff0c\u6700\u540e\u518d\u7528\u5bc6\u94a51\u52a0\u5bc6\u3002<\/p>\n<\/p>\n

\u867d\u71363DES\u76f8\u6bd4\u4e8eDES\u6709\u4e86\u660e\u663e\u7684\u5b89\u5168\u6027\u63d0\u5347\uff0c\u4f46\u7531\u4e8e\u5176\u4ecd\u7136\u4f9d\u8d56\u4e8eDES\u7b97\u6cd5\uff0c\u4f7f\u5f97\u5176\u5728\u8ba1\u7b97\u6548\u7387\u4e0a\u65e0\u6cd5\u4e0eAES\u7b49\u66f4\u73b0\u4ee3\u7684\u52a0\u5bc6\u7b97\u6cd5\u76f8\u6bd4\u3002\u56e0\u6b64\uff0c\u5c3d\u7ba13DES\u5728\u4e00\u4e9b\u9057\u7559\u7cfb\u7edf\u4e2d\u4ecd\u7136\u88ab\u4f7f\u7528\uff0c\u4f46\u5728\u65b0\u7684\u7cfb\u7edf\u8bbe\u8ba1\u4e2d\uff0c\u66f4\u63a8\u8350\u4f7f\u7528AES\u7b49\u7b97\u6cd5\u3002<\/p>\n<\/p>\n

\u56db\u3001Blowfish<\/h3>\n<\/p>\n

Blowfish\u662f\u4e00\u79cd\u5757\u52a0\u5bc6\u7b97\u6cd5\uff0c\u5b83\u8bbe\u8ba1\u65f6\u91cd\u70b9\u8003\u8651\u7684\u662f\u901f\u5ea6\uff0c\u56e0\u6b64\u5728\u5904\u7406\u5c0f\u5757\u6570\u636e\u65f6\u7279\u522b\u6709\u6548\u3002Blowfish\u7684\u5bc6\u94a5\u957f\u5ea6\u53ef\u53d8\uff0c\u4ece32\u4f4d\u5230448\u4f4d\u4e0d\u7b49\uff0c\u8fd9\u4e3a\u4f7f\u7528\u8005\u63d0\u4f9b\u4e86\u5f88\u9ad8\u7684\u7075\u6d3b\u6027\u3002<\/p>\n<\/p>\n

Blowfish\u7b97\u6cd5\u7684\u4e00\u4e2a\u7279\u70b9\u662f\u5176\u7ed3\u6784\u7b80\u5355\uff0c\u6613\u4e8e\u5b9e\u73b0\uff0c\u540c\u65f6\u4e5f\u4fdd\u8bc1\u4e86\u5f88\u9ad8\u7684\u5b89\u5168\u6027\u3002\u5b83\u91c7\u7528\u4e86\u590d\u6742\u7684\u5bc6\u94a5\u4f9d\u8d56\u6027S-boxes\u548c\u5927\u91cf\u7684\u5bc6\u94a5\u76f8\u5173\u7684\u6570\u636e\u64cd\u4f5c\uff0c\u8fd9\u4e9b\u8bbe\u8ba1\u4f7f\u5f97Blowfish\u96be\u4ee5\u88ab\u5206\u6790\u548c\u653b\u51fb\u3002<\/p>\n<\/p>\n

\u5c3d\u7ba1Blowfish\u7b97\u6cd5\u66fe\u88ab\u5e7f\u6cdb\u4f7f\u7528\uff0c\u5e76\u4e14\u5728\u591a\u4e2a\u65b9\u9762\u90fd\u8868\u73b0\u51fa\u4e86\u5f88\u597d\u7684\u6027\u80fd\uff0c\u4f46\u968f\u7740AES\u7b97\u6cd5\u7684\u666e\u53ca\uff0cBlowfish\u7684\u4f7f\u7528\u9891\u7387\u6709\u6240\u4e0b\u964d\u3002\u4e0d\u8fc7\uff0cBlowfish\u4ecd\u7136\u662f\u4e00\u4e2a\u975e\u5e38\u53ef\u9760\u548c\u9ad8\u6548\u7684\u5bf9\u79f0\u52a0\u5bc6\u7b97\u6cd5\uff0c\u7279\u522b\u662f\u5728\u9700\u8981\u52a0\u5bc6\u5c0f\u5757\u6570\u636e\u7684\u573a\u666f\u4e2d\u3002<\/p>\n<\/p>\n

\u7ed3\u8bba<\/h3>\n<\/p>\n

Java\u4e2d\u7684\u5bf9\u79f0\u52a0\u5bc6\u7b97\u6cd5\u63d0\u4f9b\u4e86\u6570\u636e\u52a0\u5bc6\u7684\u5f3a\u5927\u5de5\u5177\u3002\u4ece\u6700\u65e9\u7684DES\u5230\u66f4\u73b0\u4ee3\u7684AES\uff0c\u8fd9\u4e9b\u7b97\u6cd5\u5404\u6709\u7279\u70b9\u548c\u9002\u7528\u573a\u666f\u3002AES\u7531\u4e8e\u5176\u4f18\u5f02\u7684\u5b89\u5168\u6027\u548c\u6027\u80fd\uff0c\u6210\u4e3a\u4e86\u76ee\u524d\u6700\u63a8\u8350\u4f7f\u7528\u7684\u52a0\u5bc6\u7b97\u6cd5\u3002\u7136\u800c\uff0c\u5bf9\u4e8e\u7279\u5b9a\u9700\u6c42\u548c\u65e7\u7cfb\u7edf\u7684\u517c\u5bb9\u6027\u8003\u8651\uff0c\u5176\u4ed6\u7b97\u6cd5\u59823DES\u548cBlowfish\u4ecd\u7136\u6709\u5176\u5e94\u7528\u7684\u4ef7\u503c\u3002\u5728\u9009\u62e9\u5bf9\u79f0\u52a0\u5bc6\u7b97\u6cd5\u65f6\uff0c\u5f00\u53d1\u8005\u9700\u8981\u8003\u8651\u7b97\u6cd5\u7684\u5b89\u5168\u6027\u3001\u6548\u7387\u4ee5\u53ca\u4e0e\u7cfb\u7edf\u7684\u517c\u5bb9\u6027\uff0c\u4ee5\u786e\u4fdd\u6570\u636e\u7684\u5b89\u5168\u4f20\u8f93\u548c\u5b58\u50a8\u3002<\/p>\n<\/p>\n

\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
    \n
  1. \n

    \u4ec0\u4e48\u662f\u5bf9\u79f0\u52a0\u5bc6\u7b97\u6cd5<\/strong>\uff0c\u4ee5\u53caJava\u4e2d\u6709\u54ea\u4e9b\u5e38\u89c1\u7684\u5bf9\u79f0\u52a0\u5bc6\u7b97\u6cd5\uff1f
    \n\u5bf9\u79f0\u52a0\u5bc6\u7b97\u6cd5\u662f\u4e00\u79cd\u4f7f\u7528\u76f8\u540c\u7684\u5bc6\u94a5\u8fdb\u884c\u52a0\u5bc6\u548c\u89e3\u5bc6\u7684\u7b97\u6cd5\u3002Java\u4e2d\u5e38\u89c1\u7684\u5bf9\u79f0\u52a0\u5bc6\u7b97\u6cd5\u5305\u62ec\uff1aDES\uff08Data Encryption Standard\uff09, AES\uff08Advanced Encryption Standard\uff09\u548cDESede\uff08Triple DES\uff09\uff0c\u5b83\u4eec\u90fd\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u52a0\u5bc6\u5f3a\u5ea6\u548c\u52a0\u5bc6\u901f\u5ea6\u4e4b\u95f4\u8fdb\u884c\u9009\u62e9\u3002<\/p>\n<\/li>\n

  2. \n

    \u5982\u4f55\u9009\u62e9\u9002\u5408\u7684\u5bf9\u79f0\u52a0\u5bc6\u7b97\u6cd5<\/strong>\uff0c\u5728Java\u4e2d\u5982\u4f55\u5b9e\u73b0\u5bf9\u79f0\u52a0\u5bc6\uff1f
    \n\u9009\u62e9\u9002\u5408\u7684\u5bf9\u79f0\u52a0\u5bc6\u7b97\u6cd5\u901a\u5e38\u9700\u8981\u8003\u8651\u52a0\u5bc6\u5f3a\u5ea6\u3001\u52a0\u5bc6\u901f\u5ea6\u548c\u652f\u6301\u7684\u5bc6\u94a5\u957f\u5ea6\u7b49\u56e0\u7d20\u3002\u5728Java\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528javax.crypto\u5305\u63d0\u4f9b\u7684\u7c7b\u6765\u5b9e\u73b0\u5bf9\u79f0\u52a0\u5bc6\u3002\u901a\u8fc7\u4f7f\u7528SecretKey\u7c7b\u751f\u6210\u5bc6\u94a5\uff0c\u5e76\u4f7f\u7528Cipher\u7c7b\u8fdb\u884c\u52a0\u5bc6\u548c\u89e3\u5bc6\u64cd\u4f5c\uff0c\u53ef\u4ee5\u8f7b\u677e\u5730\u5b9e\u73b0\u5bf9\u79f0\u52a0\u5bc6\u7b97\u6cd5\u3002<\/p>\n<\/li>\n

  3. \n

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