{"id":11326,"date":"2023-06-07T23:03:45","date_gmt":"2023-06-07T15:03:45","guid":{"rendered":"http:\/\/123.57.164.21\/?p=11326"},"modified":"2023-06-07T23:03:45","modified_gmt":"2023-06-07T15:03:45","slug":"%e6%9c%80%e5%ae%89%e5%85%a8%e7%9a%84%e5%8a%a0%e5%af%86%e7%ae%97%e6%b3%95-bcrypt%ef%bc%8c%e5%86%8d%e4%b9%9f%e4%b8%8d%e7%94%a8%e6%8b%85%e5%bf%83%e6%95%b0%e6%8d%ae%e6%b3%84%e5%af%86%e4%ba%86","status":"publish","type":"post","link":"https:\/\/92it.top\/?p=11326","title":{"rendered":"\u6700\u5b89\u5168\u7684\u52a0\u5bc6\u7b97\u6cd5 Bcrypt\uff0c\u518d\u4e5f\u4e0d\u7528\u62c5\u5fc3\u6570\u636e\u6cc4\u5bc6\u4e86"},"content":{"rendered":"\n<p><strong>\u54c8\u5e0c\uff08Hash\uff09\u4e0e\u52a0\u5bc6\uff08Encrypt\uff09<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>\u54c8\u5e0c\uff08Hash\uff09\u662f\u5c06\u76ee\u6807\u6587\u672c\u8f6c\u6362\u6210\u5177\u6709\u76f8\u540c\u957f\u5ea6\u7684\u3001\u4e0d\u53ef\u9006\u7684\u6742\u51d1\u5b57\u7b26\u4e32\uff08\u6216\u53eb\u505a\u6d88\u606f\u6458\u8981\uff09\uff0c\u800c\u52a0\u5bc6\uff08Encrypt\uff09\u662f\u5c06\u76ee\u6807\u6587\u672c\u8f6c\u6362\u6210\u5177\u6709\u4e0d\u540c\u957f\u5ea6\u7684\u3001\u53ef\u9006\u7684\u5bc6\u6587\u3002<\/p>\n\n\n\n<ul><li>\u54c8\u5e0c\u7b97\u6cd5\u5f80\u5f80\u88ab\u8bbe\u8ba1\u6210\u751f\u6210\u5177\u6709\u76f8\u540c\u957f\u5ea6\u7684\u6587\u672c\uff0c\u800c\u52a0\u5bc6\u7b97\u6cd5\u751f\u6210\u7684\u6587\u672c\u957f\u5ea6\u4e0e\u660e\u6587\u672c\u8eab\u7684\u957f\u5ea6\u6709\u5173\u3002<\/li><li>\u54c8\u5e0c\u7b97\u6cd5\u662f\u4e0d\u53ef\u9006\u7684\uff0c\u800c\u52a0\u5bc6\u7b97\u6cd5\u662f\u53ef\u9006\u7684\u3002<\/li><\/ul>\n\n\n\n<p>HASH \u7b97\u6cd5\u662f\u4e00\u79cd\u6d88\u606f\u6458\u8981\u7b97\u6cd5\uff0c\u4e0d\u662f\u4e00\u79cd\u52a0\u5bc6\u7b97\u6cd5\uff0c\u4f46\u7531\u4e8e\u5176\u5355\u5411\u8fd0\u7b97\uff0c\u5177\u6709\u4e00\u5b9a\u7684\u4e0d\u53ef\u9006\u6027\uff0c\u6210\u4e3a\u52a0\u5bc6\u7b97\u6cd5\u4e2d\u7684\u4e00\u4e2a\u6784\u6210\u90e8\u5206\u3002<\/p>\n\n\n\n<p>JDK\u7684String\u7684Hash\u7b97\u6cd5\u3002\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public int hashCode() {\n    int h = hash;\n    if (h == 0 &amp;&amp; value.length > 0) {\n        char val[] = value;\n        for (int i = 0; i &lt; value.length; i++) {\n            h = 31 * h + val[i];\n        }\n        hash = h;\n    }\n    return h;\n}\n<\/pre>\n\n\n\n<p>\u4eceJDK\u7684API\u53ef\u4ee5\u770b\u51fa\uff0c\u5b83\u7684\u7b97\u6cd5\u7b49\u5f0f\u5c31\u662f<code>s[0]*31^(n-1) + s[1]*31^(n-2) + ... + s[n-1]<\/code>\uff0c\u5176\u4e2d<code>s[i]<\/code>\u5c31\u662f\u7d22\u5f15\u4e3ai\u7684\u5b57\u7b26\uff0cn\u4e3a\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u3002<\/p>\n\n\n\n<p>HashMap\u7684hash\u8ba1\u7b97\u65f6\u5148\u8ba1\u7b97<code>hashCode()<\/code>,\u7136\u540e\u8fdb\u884c\u4e8c\u6b21hash\u3002\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\n    \/\/ \u8ba1\u7b97\u4e8c\u6b21Hash    \n    int hash = hash(key.hashCode());\n     \n    static int hash(int h) {\n    \th ^= (h >>> 20) ^ (h >>> 12);\n    \treturn h ^ (h >>> 7) ^ (h >>> 4);\n    }<\/pre>\n\n\n\n<p>\u53ef\u4ee5\u53d1\u73b0\uff0c\u867d\u7136\u7b97\u6cd5\u4e0d\u540c\uff0c\u4f46\u7ecf\u8fc7\u8fd9\u4e9b\u79fb\u4f4d\u64cd\u4f5c\u540e\uff0c\u5bf9\u4e8e\u540c\u4e00\u4e2a\u503c\u4f7f\u7528\u540c\u4e00\u4e2a\u7b97\u6cd5\uff0c\u8ba1\u7b97\u51fa\u6765\u7684hash\u503c\u4e00\u5b9a\u662f\u76f8\u540c\u7684\u3002<\/p>\n\n\n\n<p><strong>\u90a3\u4e48\uff0chash\u4e3a\u4ec0\u4e48\u662f\u4e0d\u53ef\u9006\u7684\u5462\uff1f<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>\u5047\u5982\u6709\u4e24\u4e2a\u5bc6\u78013\u548c4\uff0c\u6211\u7684\u52a0\u5bc6\u7b97\u6cd5\u5f88\u7b80\u5355\u5c31\u662f3+4\uff0c\u7ed3\u679c\u662f7\uff0c\u4f46\u662f\u901a\u8fc77\u6211\u4e0d\u53ef\u80fd\u786e\u5b9a\u90a3\u4e24\u4e2a\u5bc6\u7801\u662f3\u548c4\uff0c\u6709\u5f88\u591a\u79cd\u7ec4\u5408\uff0c\u8fd9\u5c31\u662f\u6700\u7b80\u5355\u7684\u4e0d\u53ef\u9006\uff0c\u6240\u4ee5\u53ea\u80fd\u901a\u8fc7\u66b4\u529b\u7834\u89e3\u4e00\u4e2a\u4e00\u4e2a\u7684\u8bd5\u3002<\/p>\n\n\n\n<p>\u5728\u8ba1\u7b97\u8fc7\u7a0b\u4e2d\u539f\u6587\u7684\u90e8\u5206\u4fe1\u606f\u662f\u4e22\u5931\u4e86\u3002\u4e00\u4e2aMD5\u7406\u8bba\u4e0a\u662f\u53ef\u4ee5\u5bf9\u5e94\u591a\u4e2a\u539f\u6587\u7684\uff0c\u56e0\u4e3aMD5\u662f\u6709\u9650\u591a\u4e2a\u800c\u539f\u6587\u662f\u65e0\u9650\u591a\u4e2a\u7684\u3002<\/p>\n\n\n\n<p><strong>\u4e0d\u53ef\u9006\u7684MD5\u4e3a\u4ec0\u4e48\u662f\u4e0d\u5b89\u5168\u7684\uff1f<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p>\u56e0\u4e3ahash\u7b97\u6cd5\u662f\u56fa\u5b9a\u7684\uff0c\u6240\u4ee5\u540c\u4e00\u4e2a\u5b57\u7b26\u4e32\u8ba1\u7b97\u51fa\u6765\u7684hash\u4e32\u662f\u56fa\u5b9a\u7684\uff0c\u6240\u4ee5\uff0c\u53ef\u4ee5\u91c7\u7528\u5982\u4e0b\u7684\u65b9\u5f0f\u8fdb\u884c\u7834\u89e3\u3002<\/p>\n\n\n\n<ul><li><strong>\u66b4\u529b\u679a\u4e3e\u6cd5<\/strong>\uff1a\u7b80\u5355\u7c97\u66b4\u5730\u679a\u4e3e\u51fa\u6240\u6709\u539f\u6587\uff0c\u5e76\u8ba1\u7b97\u51fa\u5b83\u4eec\u7684\u54c8\u5e0c\u503c\uff0c\u770b\u770b\u54ea\u4e2a\u54c8\u5e0c\u503c\u548c\u7ed9\u5b9a\u7684\u4fe1\u606f\u6458\u8981\u4e00\u81f4\u3002<\/li><li><strong>\u5b57\u5178\u6cd5<\/strong>\uff1a\u9ed1\u5ba2\u5229\u7528\u4e00\u4e2a\u5de8\u5927\u7684\u5b57\u5178\uff0c\u5b58\u50a8\u5c3d\u53ef\u80fd\u591a\u7684\u539f\u6587\u548c\u5bf9\u5e94\u7684\u54c8\u5e0c\u503c\u3002\u6bcf\u6b21\u7528\u7ed9\u5b9a\u7684\u4fe1\u606f\u6458\u8981\u67e5\u627e\u5b57\u5178\uff0c\u5373\u53ef\u5feb\u901f\u627e\u5230\u78b0\u649e\u7684\u7ed3\u679c\u3002<\/li><li><strong>\u5f69\u8679\u8868<\/strong>\uff08rainbow\uff09\u6cd5\uff1a\u5728\u5b57\u5178\u6cd5\u7684\u57fa\u7840\u4e0a\u6539\u8fdb\uff0c\u4ee5\u65f6\u95f4\u6362\u7a7a\u95f4\u3002\u662f\u73b0\u5728\u7834\u89e3\u54c8\u5e0c\u5e38\u7528\u7684\u529e\u6cd5\u3002<\/li><\/ul>\n\n\n\n<p>\u5bf9\u4e8e\u5355\u673a\u6765\u8bf4\uff0c\u66b4\u529b\u679a\u4e3e\u6cd5\u7684\u65f6\u95f4\u6210\u672c\u5f88\u9ad8\uff08\u4ee514\u4f4d\u5b57\u6bcd\u548c\u6570\u5b57\u7684\u7ec4\u5408\u5bc6\u7801\u4e3a\u4f8b\uff0c\u5171\u67091.24\u00d710^25\u79cd\u53ef\u80fd\uff0c\u5373\u4f7f\u7535\u8111\u6bcf\u79d2\u949f\u80fd\u8fdb\u884c10\u4ebf\u6b21\u8fd0\u7b97\uff0c\u4e5f\u9700\u89814\u4ebf\u5e74\u624d\u80fd\u7834\u89e3\uff09\uff0c\u5b57\u5178\u6cd5\u7684\u7a7a\u95f4\u6210\u672c\u5f88\u9ad8\uff08\u4ecd\u4ee514\u4f4d\u5b57\u6bcd\u548c\u6570\u5b57\u7684\u7ec4\u5408\u5bc6\u7801\u4e3a\u4f8b\uff0c\u751f\u6210\u7684\u5bc6\u780132\u4f4d\u54c8\u5e0c\u4e32\u7684\u5bf9\u7167\u8868\u5c06\u5360\u75285.7\u00d710^14 TB\u7684\u5b58\u50a8\u7a7a\u95f4\uff09\u3002\u4f46\u662f\u5229\u7528\u5206\u5e03\u5f0f\u8ba1\u7b97\u548c\u5206\u5e03\u5f0f\u5b58\u50a8\uff0c\u4ecd\u7136\u53ef\u4ee5\u6709\u6548\u7834\u89e3MD5\u7b97\u6cd5\u3002\u56e0\u6b64\u8fd9\u4e24\u79cd\u65b9\u6cd5\u540c\u6837\u88ab\u9ed1\u5ba2\u4eec\u5e7f\u6cdb\u4f7f\u7528\u3002<\/p>\n\n\n\n<p><strong>\u5982\u4f55\u9632\u5fa1\u5f69\u8679\u8868\u7684\u7834\u89e3\uff1f<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><br><\/p>\n\n\n\n<p>\u867d\u7136\u5f69\u8679\u8868\u6709\u7740\u5982\u6b64\u60ca\u4eba\u7684\u7834\u89e3\u6548\u7387\uff0c\u4f46\u7f51\u7ad9\u7684\u5b89\u5168\u4eba\u5458\u4ecd\u7136\u6709\u529e\u6cd5\u9632\u5fa1\u5f69\u8679\u8868\u3002\u6700\u6709\u6548\u7684\u65b9\u6cd5\u5c31\u662f\u201c\u52a0\u76d0\u201d\uff0c\u5373\u5728\u5bc6\u7801\u7684\u7279\u5b9a\u4f4d\u7f6e\u63d2\u5165\u7279\u5b9a\u7684\u5b57\u7b26\u4e32\uff0c\u8fd9\u4e2a\u7279\u5b9a\u5b57\u7b26\u4e32\u5c31\u662f\u201c\u76d0\uff08Salt\uff09\u201d\uff0c\u52a0\u76d0\u540e\u7684\u5bc6\u7801\u7ecf\u8fc7\u54c8\u5e0c\u52a0\u5bc6\u5f97\u5230\u7684\u54c8\u5e0c\u4e32\u4e0e\u52a0\u76d0\u524d\u7684\u54c8\u5e0c\u4e32\u5b8c\u5168\u4e0d\u540c\uff0c\u9ed1\u5ba2\u7528\u5f69\u8679\u8868\u5f97\u5230\u7684\u5bc6\u7801\u6839\u672c\u5c31\u4e0d\u662f\u771f\u6b63\u7684\u5bc6\u7801\u3002\u5373\u4f7f\u9ed1\u5ba2\u77e5\u9053\u4e86\u201c\u76d0\u201d\u7684\u5185\u5bb9\u3001\u52a0\u76d0\u7684\u4f4d\u7f6e\uff0c\u8fd8\u9700\u8981\u5bf9H\u51fd\u6570\u548cR\u51fd\u6570\u8fdb\u884c\u4fee\u6539\uff0c\u5f69\u8679\u8868\u4e5f\u9700\u8981\u91cd\u65b0\u751f\u6210\uff0c\u56e0\u6b64\u52a0\u76d0\u80fd\u5927\u5927\u589e\u52a0\u5229\u7528\u5f69\u8679\u8868\u653b\u51fb\u7684\u96be\u5ea6\u3002<\/p>\n\n\n\n<p>\u4e00\u4e2a\u7f51\u7ad9\uff0c\u5982\u679c\u52a0\u5bc6\u7b97\u6cd5\u548c\u76d0\u90fd\u6cc4\u9732\u4e86\uff0c\u90a3\u9488\u5bf9\u6027\u653b\u51fb\u4f9d\u7136\u662f\u975e\u5e38\u4e0d\u5b89\u5168\u7684\u3002\u56e0\u4e3a\u540c\u4e00\u4e2a\u52a0\u5bc6\u7b97\u6cd5\u540c\u4e00\u4e2a\u76d0\u52a0\u5bc6\u540e\u7684\u5b57\u7b26\u4e32\u4ecd\u7136\u8fd8\u662f\u4e00\u6bdb\u4e00\u6837\u6ef4\uff01<\/p>\n\n\n\n<p><strong>\u4e00\u4e2a\u66f4\u96be\u7834\u89e3\u7684\u52a0\u5bc6\u7b97\u6cd5Bcrypt<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><br><\/p>\n\n\n\n<p>BCrypt\u662f\u7531Niels Provos\u548cDavid Mazi\u00e8res\u8bbe\u8ba1\u7684\u5bc6\u7801\u54c8\u5e0c\u51fd\u6570\uff0c\u4ed6\u662f\u57fa\u4e8eBlowfish\u5bc6\u7801\u800c\u6765\u7684\uff0c\u5e76\u4e8e1999\u5e74\u5728USENIX\u4e0a\u63d0\u51fa\u3002<\/p>\n\n\n\n<p>\u9664\u4e86\u52a0\u76d0\u6765\u62b5\u5fa1rainbow table \u653b\u51fb\u4e4b\u5916\uff0cbcrypt\u7684\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u7279\u5f81\u5c31\u662f\u81ea\u9002\u5e94\u6027\uff0c\u53ef\u4ee5\u4fdd\u8bc1\u52a0\u5bc6\u7684\u901f\u5ea6\u5728\u4e00\u4e2a\u7279\u5b9a\u7684\u8303\u56f4\u5185\uff0c\u5373\u4f7f\u8ba1\u7b97\u673a\u7684\u8fd0\u7b97\u80fd\u529b\u975e\u5e38\u9ad8\uff0c\u53ef\u4ee5\u901a\u8fc7\u589e\u52a0\u8fed\u4ee3\u6b21\u6570\u7684\u65b9\u5f0f\uff0c\u4f7f\u5f97\u52a0\u5bc6\u901f\u5ea6\u53d8\u6162\uff0c\u4ece\u800c\u53ef\u4ee5\u62b5\u5fa1\u66b4\u529b\u641c\u7d22\u653b\u51fb\u3002<\/p>\n\n\n\n<p>Bcrypt\u53ef\u4ee5\u7b80\u5355\u7406\u89e3\u4e3a\u5b83\u5185\u90e8\u81ea\u5df1\u5b9e\u73b0\u4e86\u968f\u673a\u52a0\u76d0\u5904\u7406\u3002\u4f7f\u7528Bcrypt\uff0c\u6bcf\u6b21\u52a0\u5bc6\u540e\u7684\u5bc6\u6587\u662f\u4e0d\u4e00\u6837\u7684\u3002<\/p>\n\n\n\n<p>\u5bf9\u4e00\u4e2a\u5bc6\u7801\uff0cBcrypt\u6bcf\u6b21\u751f\u6210\u7684hash\u90fd\u4e0d\u4e00\u6837\uff0c\u90a3\u4e48\u5b83\u662f\u5982\u4f55\u8fdb\u884c\u6821\u9a8c\u7684\uff1f<\/p>\n\n\n\n<ul><li>\u867d\u7136\u5bf9\u540c\u4e00\u4e2a\u5bc6\u7801\uff0c\u6bcf\u6b21\u751f\u6210\u7684hash\u4e0d\u4e00\u6837\uff0c\u4f46\u662fhash\u4e2d\u5305\u542b\u4e86salt\uff08hash\u4ea7\u751f\u8fc7\u7a0b\uff1a\u5148\u968f\u673a\u751f\u6210salt\uff0csalt\u8ddfpassword\u8fdb\u884chash\uff09\uff1b<\/li><li>\u5728\u4e0b\u6b21\u6821\u9a8c\u65f6\uff0c\u4ecehash\u4e2d\u53d6\u51fasalt\uff0csalt\u8ddfpassword\u8fdb\u884chash\uff1b\u5f97\u5230\u7684\u7ed3\u679c\u8ddf\u4fdd\u5b58\u5728DB\u4e2d\u7684hash\u8fdb\u884c\u6bd4\u5bf9\u3002<\/li><\/ul>\n\n\n\n<p><br>\u5728Spring Security \u4e2d \u5185\u7f6e\u4e86Bcrypt\u52a0\u5bc6\u7b97\u6cd5\uff0c\u6784\u5efa\u4e5f\u5f88\u7b80\u5355\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">@Bean\npublic PasswordEncoder passwordEncoder(){\n    return new BCryptPasswordEncoder();\n}<\/pre>\n\n\n\n<p>\u751f\u6210\u7684\u52a0\u5bc6\u5b57\u7b26\u4e32\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">$2b$[cost]$[22 character salt][31 character hash]<\/pre>\n\n\n\n<p>\u6bd4\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">$2a$10$N9qo8uLOickgx2ZMRZoMyeIjZAgcfl7p92ldGxad68LJZdL17lhWy\n\\__\/\\\/ \\____________________\/\\_____________________________\/\n Alg Cost      Salt                        Hash\r\n<\/pre>\n\n\n\n<p>\u4e0a\u9762\u4f8b\u5b50\u4e2d\uff0c$2a$ \u8868\u793a\u7684hash\u7b97\u6cd5\u7684\u552f\u4e00\u6807\u5fd7\u3002\u8fd9\u91cc\u8868\u793a\u7684\u662fBcrypt\u7b97\u6cd5\u3002<\/p>\n\n\n\n<p>10 \u8868\u793a\u7684\u662f\u4ee3\u4ef7\u56e0\u5b50\uff0c\u8fd9\u91cc\u662f2\u768410\u6b21\u65b9\uff0c\u4e5f\u5c31\u662f1024\u8f6e\u3002<\/p>\n\n\n\n<p>N9qo8uLOickgx2ZMRZoMye \u662f16\u4e2a\u5b57\u8282\uff08128bits\uff09\u7684salt\u7ecf\u8fc7base64\u7f16\u7801\u5f97\u5230\u768422\u957f\u5ea6\u7684\u5b57\u7b26\u3002<\/p>\n\n\n\n<p>\u6700\u540e\u7684IjZAgcfl7p92ldGxad68LJZdL17lhWy\u662f24\u4e2a\u5b57\u8282\uff08192bits\uff09\u7684hash\uff0c\u7ecf\u8fc7bash64\u7684\u7f16\u7801\u5f97\u5230\u768431\u957f\u5ea6\u7684\u5b57\u7b26\u3002<\/p>\n\n\n\n<p><strong>PasswordEncoder \u63a5\u53e3<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><br>\u8fd9\u4e2a\u63a5\u53e3\u662fSpring Security \u5185\u7f6e\u7684\uff0c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public interface PasswordEncoder {\n   String encode(CharSequence rawPassword);\n \n   boolean matches(CharSequence rawPassword, String encodedPassword);\n \n   default boolean upgradeEncoding(String encodedPassword) {\n      return false;\n   }\n}\n<\/pre>\n\n\n\n<p>\u8fd9\u4e2a\u63a5\u53e3\u6709\u4e09\u4e2a\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<ul><li>encode\u65b9\u6cd5\u63a5\u53d7\u7684\u53c2\u6570\u662f\u539f\u59cb\u5bc6\u7801\u5b57\u7b26\u4e32\uff0c\u8fd4\u56de\u503c\u662f\u7ecf\u8fc7\u52a0\u5bc6\u4e4b\u540e\u7684hash\u503c\uff0chash\u503c\u662f\u4e0d\u80fd\u88ab\u9006\u5411\u89e3\u5bc6\u7684\u3002\u8fd9\u4e2a\u65b9\u6cd5\u901a\u5e38\u5728\u4e3a\u7cfb\u7edf\u6dfb\u52a0\u7528\u6237\uff0c\u6216\u8005\u7528\u6237\u6ce8\u518c\u7684\u65f6\u5019\u4f7f\u7528\u3002<\/li><li>matches\u65b9\u6cd5\u662f\u7528\u6765\u6821\u9a8c\u7528\u6237\u8f93\u5165\u5bc6\u7801rawPassword\uff0c\u548c\u52a0\u5bc6\u540e\u7684hash\u503cencodedPassword\u662f\u5426\u5339\u914d\u3002\u5982\u679c\u80fd\u591f\u5339\u914d\u8fd4\u56detrue\uff0c\u8868\u793a\u7528\u6237\u8f93\u5165\u7684\u5bc6\u7801rawPassword\u662f\u6b63\u786e\u7684\uff0c\u53cd\u4e4b\u8fd4\u56defasle\u3002\u4e5f\u5c31\u662f\u8bf4\u867d\u7136\u8fd9\u4e2ahash\u503c\u4e0d\u80fd\u88ab\u9006\u5411\u89e3\u5bc6\uff0c\u4f46\u662f\u53ef\u4ee5\u5224\u65ad\u662f\u5426\u548c\u539f\u59cb\u5bc6\u7801\u5339\u914d\u3002\u8fd9\u4e2a\u65b9\u6cd5\u901a\u5e38\u5728\u7528\u6237\u767b\u5f55\u7684\u65f6\u5019\u8fdb\u884c\u7528\u6237\u8f93\u5165\u5bc6\u7801\u7684\u6b63\u786e\u6027\u6821\u9a8c\u3002<\/li><li>upgradeEncoding\u8bbe\u8ba1\u7684\u7528\u610f\u662f\uff0c\u5224\u65ad\u5f53\u524d\u7684\u5bc6\u7801\u662f\u5426\u9700\u8981\u5347\u7ea7\u3002\u4e5f\u5c31\u662f\u662f\u5426\u9700\u8981\u91cd\u65b0\u52a0\u5bc6\uff1f\u9700\u8981\u7684\u8bdd\u8fd4\u56detrue\uff0c\u4e0d\u9700\u8981\u7684\u8bdd\u8fd4\u56defasle\u3002\u9ed8\u8ba4\u5b9e\u73b0\u662f\u8fd4\u56defalse\u3002<\/li><\/ul>\n\n\n\n<p>\u4f8b\u5982\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u5982\u4e0b\u793a\u4f8b\u4ee3\u7801\u5728\u8fdb\u884c\u7528\u6237\u6ce8\u518c\u7684\u65f6\u5019\u52a0\u5bc6\u5b58\u50a8\u7528\u6237\u5bc6\u7801<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/\u5c06User\u4fdd\u5b58\u5230\u6570\u636e\u5e93\u8868\uff0c\u8be5\u8868\u5305\u542bpassword\u5217\nuser.setPassword(passwordEncoder.encode(user.getPassword()));<\/pre>\n\n\n\n<p><code>BCryptPasswordEncoder<\/code> \u662fSpring Security\u63a8\u8350\u4f7f\u7528\u7684PasswordEncoder\u63a5\u53e3\u5b9e\u73b0\u7c7b<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">public class PasswordEncoderTest {\n  @Test\n  void bCryptPasswordTest(){\n    PasswordEncoder passwordEncoder =  new BCryptPasswordEncoder();\n    String rawPassword = \"123456\";  \/\/\u539f\u59cb\u5bc6\u7801\n    String encodedPassword = passwordEncoder.encode(rawPassword); \/\/\u52a0\u5bc6\u540e\u7684\u5bc6\u7801\n \n    System.out.println(\"\u539f\u59cb\u5bc6\u7801\" + rawPassword);\n    System.out.println(\"\u52a0\u5bc6\u4e4b\u540e\u7684hash\u5bc6\u7801:\" + encodedPassword);\n \n    System.out.println(rawPassword + \"\u662f\u5426\u5339\u914d\" + encodedPassword + \":\"   \/\/\u5bc6\u7801\u6821\u9a8c\uff1atrue\n            + passwordEncoder.matches(rawPassword, encodedPassword));\n \n    System.out.println(\"654321\u662f\u5426\u5339\u914d\" + encodedPassword + \":\"   \/\/\u5b9a\u4e49\u4e00\u4e2a\u9519\u8bef\u7684\u5bc6\u7801\u8fdb\u884c\u6821\u9a8c:false\n            + passwordEncoder.matches(\"654321\", encodedPassword));\n  }\n}\n<\/pre>\n\n\n\n<p>\u4e0a\u9762\u7684\u6d4b\u8bd5\u7528\u4f8b\u6267\u884c\u7684\u7ed3\u679c\u662f\u4e0b\u9762\u8fd9\u6837\u7684\u3002\uff08\u6ce8\u610f\uff1a<strong>\u5bf9\u4e8e\u540c\u4e00\u4e2a\u539f\u59cb\u5bc6\u7801\uff0c\u6bcf\u6b21\u52a0\u5bc6\u4e4b\u540e\u7684hash\u5bc6\u7801\u90fd\u662f\u4e0d\u4e00\u6837\u7684\uff0c\u8fd9\u6b63\u662fBCryptPasswordEncoder\u7684\u5f3a\u5927\u4e4b\u5904<\/strong>\uff0c\u5b83\u4e0d\u4ec5\u4e0d\u80fd\u88ab\u7834\u89e3\uff0c\u60f3\u901a\u8fc7\u5e38\u7528\u5bc6\u7801\u5bf9\u7167\u8868\u8fdb\u884c\u5927\u6d77\u635e\u9488\u4f60\u90fd\u65e0\u4ece\u4e0b\u624b\uff09\uff0c\u8f93\u51fa\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">\u539f\u59cb\u5bc6\u7801123456\n\u52a0\u5bc6\u4e4b\u540e\u7684hash\u5bc6\u7801:$2a$10$zt6dUMTjNSyzINTGyiAgluna3mPm7qdgl26vj4tFpsFO6WlK5lXNm\n123456\u662f\u5426\u5339\u914d$2a$10$zt6dUMTjNSyzINTGyiAgluna3mPm7qdgl26vj4tFpsFO6WlK5lXNm:true\n654321\u662f\u5426\u5339\u914d$2a$10$zt6dUMTjNSyzINTGyiAgluna3mPm7qdgl26vj4tFpsFO6WlK5lXNm:false<\/pre>\n\n\n\n<p><strong>\u4ea7\u751f\u968f\u673a\u76d0<\/strong>\uff08\u76d0\u7684\u4f5c\u7528\u5c31\u662f\u6bcf\u6b21\u505a\u51fa\u6765\u7684\u83dc\u5473\u9053\u90fd\u4e0d\u4e00\u6837\uff09\u3002\u8fd9\u4e00\u70b9\u5f88\u91cd\u8981\uff0c\u56e0\u4e3a\u8fd9\u610f\u5473\u7740\u6bcf\u6b21encode\u5c06\u4ea7\u751f\u4e0d\u540c\u7684\u7ed3\u679c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u54c8\u5e0c\uff08Hash\uff09\u4e0e\u52a0\u5bc6\uff08Encrypt\uff09 \u54c8\u5e0c\uff08Hash\uff09\u662f\u5c06\u76ee\u6807\u6587\u672c\u8f6c\u6362\u6210\u5177\u6709\u76f8\u540c\u957f\u5ea6\u7684\u3001\u4e0d\u53ef\u9006\u7684\u6742\u51d1\u5b57\u7b26\u4e32 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[],"_links":{"self":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/11326"}],"collection":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=11326"}],"version-history":[{"count":3,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/11326\/revisions"}],"predecessor-version":[{"id":11329,"href":"https:\/\/92it.top\/index.php?rest_route=\/wp\/v2\/posts\/11326\/revisions\/11329"}],"wp:attachment":[{"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=11326"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11326"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/92it.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11326"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}