{"id":35237,"date":"2025-05-03T17:00:54","date_gmt":"2025-05-03T09:00:54","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/35237.html"},"modified":"2025-05-03T17:00:54","modified_gmt":"2025-05-03T09:00:54","slug":"%e9%93%b6%e8%a1%8c%e5%ae%89%e5%85%a8%e4%bc%a0%e8%be%93%e5%b9%b3%e5%8f%b0%ef%bc%88%e4%b8%83%ef%bc%89%e7%a7%98%e9%92%a5%e5%8d%8f%e5%95%86%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%92%8c%e5%ae%a2%e6%88%b7%e7%ab%af","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/35237.html","title":{"rendered":"\u94f6\u884c\u5b89\u5168\u4f20\u8f93\u5e73\u53f0\uff08\u4e03\uff09\u79d8\u94a5\u534f\u5546\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u5b9e\u73b0-2\uff08bug\u89e3\u51b3\uff09"},"content":{"rendered":"<\/p>\n<h4>\u76ee\u5f55<\/h4>\n<ul>\n<li>\u524d\u8a00<\/li>\n<li>\u4e00\u3001\u7b7e\u540d\u65f6\u9047\u5230\u7684\u6bb5\u9519\u8bef<\/li>\n<li>\n<ul>\n<li>1.1 \u9519\u8bef\u539f\u56e0<\/li>\n<li>1.2 \u89e3\u51b3\u529e\u6cd5<\/li>\n<li>1.3 \u89e3\u51b3\u4e00\u4e2a\u7591\u95ee<\/li>\n<\/ul>\n<\/li>\n<li>\u4e8c\u3001\u5bc6\u94a5\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u9047\u5230\u7684\u6bb5\u9519\u8bef<\/li>\n<li>\n<ul>\n<li>2.1 \u9519\u8bef\u539f\u56e0<\/li>\n<li>2.2 \u89e3\u51b3\u65b9\u6848<\/li>\n<\/ul>\n<\/li>\n<li>\u4e09\u3001\u6d4b\u8bd5\u7ed3\u679c<\/li>\n<\/ul>\n<h2>\u524d\u8a00<\/h2>\n<p>\u8fd9\u7bc7\u7b14\u8bb0\u6211\u4eec\u4e3b\u8981\u89e3\u51b3\u5728\u8c03\u8bd5\u5bc6\u94a5\u534f\u5546\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u7684\u65f6\u5019\u9047\u5230\u7684\u4e00\u4e9b\u95ee\u9898&#xff0c;\u7b2c\u4e00\u4e2a\u662f\u5728\u7b7e\u540d\u65f6\u9047\u5230\u7684\u6bb5\u9519\u8bef&#xff0c;\u7b2c\u4e8c\u4e2a\u662f\u5728\u5bc6\u94a5\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u9047\u5230\u7684\u6bb5\u9519\u8bef\u5bfc\u81f4\u4f20\u8f93\u4e0d\u7a33\u5b9a\u7684\u95ee\u9898.<\/p>\n<h2>\u4e00\u3001\u7b7e\u540d\u65f6\u9047\u5230\u7684\u6bb5\u9519\u8bef<\/h2>\n<h3>1.1 \u9519\u8bef\u539f\u56e0<\/h3>\n<p>\u5728\u6211\u4eec\u8c03\u8bd5\u8fc7\u7a0b\u4e2d\u4f1a\u9047\u5230\u670d\u52a1\u5668\u7aef\u4f1a\u9047\u5230\u8fd9\u6837\u7684\u62a5\u9519&#xff08;\u5ba2\u6237\u7aef\u4e5f\u53ef\u80fd\u4f1a\u53d1\u751f\u8fd9\u79cd\u95ee\u9898&#xff0c;\u6982\u7387\u95ee\u9898&#xff09;&#xff1a;<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250503090052-6815db4410056.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> \u8fd9\u6bb5\u62a5\u9519\u662f\u8bf4\u5728RSA\u516c\u94a5\u90e8\u5206\u65f6\u9047\u5230\u4e86\u6bb5\u9519\u8bef\u3002\u5206\u6790\u4e00\u4e0b&#xff0c;\u5ba2\u6237\u7aef\u4f7f\u7528\u79c1\u94a5\u8fdb\u884c\u7b7e\u540d&#xff0c;\u7136\u540e\u628a\u6570\u636e\u53d1\u9001\u7ed9\u670d\u52a1\u5668&#xff0c;\u7136\u540e\u670d\u52a1\u5668\u8fdb\u884c\u6821\u9a8c&#xff0c;\u7136\u540e\u7528\u516c\u94a5\u8fdb\u884c\u52a0\u5bc6&#xff0c;\u6240\u4ee5\u6d89\u53ca\u5230\u7684\u53ea\u6709\u8fd9\u4e24\u4e2a\u5730\u65b9&#xff0c;\u5230\u5e95\u65f6\u6821\u9a8c\u7684\u65f6\u5019\u51fa\u9519\u4e86\u8fd8\u662f\u52a0\u5bc6\u7684\u65f6\u5019\u51fa\u9519\u4e86&#xff0c;\u6211\u4eec\u4e0d\u6e05\u695a&#xff0c;\u73b0\u5728\u6211\u4eec\u52a0\u5165\u5927\u91cf\u65e5\u5fd7\u53d1\u73b0\u7b7e\u540d\u6821\u9a8c\u6210\u529f\/\u5931\u8d25\u6839\u672c\u6ca1\u6709\u8f93\u51fa&#xff0c;\u8bf4\u660e\u7b7e\u540d\u6821\u9a8c\u8fd9\u4e00\u6b65\u538b\u6839\u5c31\u6ca1\u6709\u8fdb\u5165\u3002 \u7136\u540e\u6211\u4eec\u5206\u6790\u4e3a\u4ec0\u4e48\u7b7e\u540d\u6821\u9a8c\u5931\u8d25&#xff0c;rsa\u52a0\u5bc6\u6709\u8fd9\u4e48\u4e00\u4e2a\u6ce8\u610f\u4e8b\u9879&#xff0c;rsa\u52a0\u89e3\u5bc6\u64cd\u4f5c\u6570\u636e\u4e0d\u80fd\u592a\u957f&#xff0c;\u4e0d\u80fd\u8d85\u8fc7\u5bc6\u94a5\u957f\u5ea6&#xff0c;\u73b0\u5728\u6211\u4eec\u6e05\u695a\u4e86&#xff0c;\u539f\u5148\u7b7e\u540d\u7684\u6570\u636e&#xff08;reqMsg-&gt;data())\u6570\u636e\u592a\u957f&#xff0c;\u6bd4\u5bc6\u94a5\u957f&#xff08;\u56e0\u4e3a\u8fd9\u4e2a\u6570\u636e\u662f\u8fdb\u884cbase64\u7f16\u7801\u4e4b\u540e\u5199\u9053\u78c1\u76d8\u91cc\u9762\u7684&#xff0c;\u4e0d\u662f\u539f\u59cb\u516c\u94a5&#xff09;&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/ \u8bfb\u516c\u94a5\u6587\u4ef6<\/span><br \/>\nifstream <span class=\"token function\">ifs<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;public.pem&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nstringstream str<span class=\"token punctuation\">;<\/span><br \/>\nstr <span class=\"token operator\">&lt;&lt;<\/span> ifs<span class=\"token punctuation\">.<\/span><span class=\"token function\">rdbuf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u6240\u4ee5\u8981\u4e48\u7b7e\u540d\u7684\u65f6\u5019\u4f1a\u51fa\u73b0\u6bb5\u9519\u8bef&#xff0c;\u8981\u4e48\u6821\u9a8c\u7684\u65f6\u5019\u4f1a\u51fa\u73b0\u6bb5\u9519\u8bef\u3002<\/p>\n<h3>1.2 \u89e3\u51b3\u529e\u6cd5<\/h3>\n<p>\u8981\u60f3\u628a\u516c\u94a5\u7684\u6570\u636e\u53d8\u77ed&#xff0c;\u5f88\u81ea\u7136\u7684\u529e\u6cd5\u5c31\u662f\u5c06\u516c\u94a5\u6570\u636e&#xff08;\u7ecf\u8fc7base64\u7f16\u7801\u4e4b\u540e\u7684&#xff09;\u8fdb\u884c\u4e00\u6b21\u54c8\u5e0c\u8fd0\u7b97&#xff0c;\u7136\u540e\u5c06\u54c8\u5e0c\u503c\u8fdb\u884c\u7b7e\u540d&#xff0c;\u56e0\u4e3a\u7b7e\u540d\u672c\u8eab\u662f\u4e3a\u4e86\u8ba4\u8bc1&#xff0c;\u6240\u4ee5\u5bf9\u54c8\u5e0c\u503c\u8fdb\u884c\u7b7e\u540d\u5e76\u4e0d\u5f71\u54cd\u7b7e\u540d\u672c\u8eab\u7684\u529f\u80fd\u3002 \u7136\u540e\u5728\u670d\u52a1\u5668\u90a3\u8fb9&#xff0c;\u5c06\u83b7\u5f97\u7684\u516c\u94a5\u8fdb\u884c\u76f8\u540c\u7684\u54c8\u5e0c\u8fd0\u7b97\u7136\u540e\u8fdb\u884c\u6821\u9a8c&#xff0c;\u5c31\u4e0d\u4f1a\u51fa\u73b0\u8fd9\u79cd\u6bb5\u9519\u8bef\u4e86\u3002 \u5ba2\u6237\u7aef&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/ \u521b\u5efa\u54c8\u5e0c\u5bf9\u8c61<\/span><br \/>\nHash <span class=\"token function\">sha1<\/span><span class=\"token punctuation\">(<\/span>T_SHA1<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nsha1<span class=\"token punctuation\">.<\/span><span class=\"token function\">addData<\/span><span class=\"token punctuation\">(<\/span>str<span class=\"token punctuation\">.<\/span><span class=\"token function\">str<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/str\u5c31\u662f\u53d6\u51fa\u7684\u516c\u94a5<\/span><br \/>\nreqInfo<span class=\"token punctuation\">.<\/span>sign <span class=\"token operator\">&#061;<\/span> rsa<span class=\"token punctuation\">.<\/span><span class=\"token function\">rsaSign<\/span><span class=\"token punctuation\">(<\/span>sha1<span class=\"token punctuation\">.<\/span><span class=\"token function\">result<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ \u516c\u94a5\u7684\u7684\u54c8\u5e0c\u503c\u7b7e\u540d<\/span><br \/>\ncout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;\u7b7e\u540d\u5b8c\u6210&#8230;&#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><\/p>\n<p>\u670d\u52a1\u5668&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/ \u5c06\u6536\u5230\u7684\u516c\u94a5\u6570\u636e\u5199\u5165\u672c\u5730\u78c1\u76d8<\/span><br \/>\nofstream <span class=\"token function\">ofs<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;public.pem&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nofs <span class=\"token operator\">&lt;&lt;<\/span> reqMsg<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">data<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/\u628a\u6240\u6709\u5f85\u5199\u6570\u636e\u5f3a\u5236\u5237\u5230\u78c1\u76d8&#xff0c;\u5e76\u5173\u95ed\u8fd9\u4e2a\u6587\u4ef6\u201d&#xff0c;\u4fdd\u8bc1\u540e\u9762\u7528 OpenSSL \u8bfb\u5165\u65f6&#xff0c;\u6587\u4ef6\u91cc\u7684\u516c\u94a5\u5185\u5bb9\u662f\u5b8c\u6574\u4e14\u53ef\u7528\u7684<\/span><br \/>\nofs<span class=\"token punctuation\">.<\/span><span class=\"token function\">close<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u5f3a\u5236\u5199\u6570\u636e<\/span><br \/>\n<span class=\"token comment\">\/\/ \u521b\u5efa\u975e\u5bf9\u79f0\u52a0\u5bc6\u5bf9\u8c61<\/span><br \/>\nRespondInfo info<span class=\"token punctuation\">;<\/span><br \/>\nRsaCrypto <span class=\"token function\">rsa<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;public.pem&#034;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u521b\u5efa\u54c8\u5e0c\u5bf9\u8c61<\/span><br \/>\nHash <span class=\"token function\">sha<\/span><span class=\"token punctuation\">(<\/span>T_SHA1<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nsha<span class=\"token punctuation\">.<\/span><span class=\"token function\">addData<\/span><span class=\"token punctuation\">(<\/span>reqMsg<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">data<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\ncout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;1111111111111111&#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">bool<\/span> bl <span class=\"token operator\">&#061;<\/span> rsa<span class=\"token punctuation\">.<\/span><span class=\"token function\">rsaVerify<\/span><span class=\"token punctuation\">(<\/span>sha<span class=\"token punctuation\">.<\/span><span class=\"token function\">result<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> reqMsg<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">sign<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\ncout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;00000000000000000000&#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><\/p>\n<h3>1.3 \u89e3\u51b3\u4e00\u4e2a\u7591\u95ee<\/h3>\n<p>\u6709\u4eba\u4f1a\u89c9\u5f97&#xff0c;\u65e2\u7136\u5728\u5199\u5165\u78c1\u76d8\u65f6\u7ecf\u8fc7\u4e86base64\u7f16\u7801&#xff0c;\u90a3\u4e48\u6211\u5728\u53d6\u51fa\u516c\u94a5\u65f6\u5e76\u6ca1\u6709\u8fdb\u884c\u5bf9\u7b49\u7684\u89e3\u7801&#xff0c;\u4e3a\u4ec0\u4e48\u53ef\u4ee5\u6b63\u5e38\u52a0\u89e3\u5bc6\u548c\u7b7e\u540d\u6821\u9a8c\u5462\u3002 \u5176\u5b9e\u662f\u8fd9\u6837\u7684&#xff0c;\u4f60\u770b\u5230\u7684 PEM \u683c\u5f0f&#xff08;Base64 \u7f16\u7801&#xff09;\u5e76\u4e0d\u662f\u76f4\u63a5\u4ea4\u7ed9 RSA_public_encrypt() \u4f7f\u7528\u7684\u539f\u59cb\u5bc6\u94a5\u5185\u5bb9&#xff0c;\u800c\u662f\u88ab OpenSSL \u7684 PEM_read_RSA_PUBKEY() \u6216 PEM_read_RSAPublicKey() \u8fd9\u6837\u7684\u51fd\u6570\u5904\u7406\u5e76\u89e3\u7801\u8fd8\u539f\u6210 RSA* \u5bf9\u8c61&#xff0c;\u8fd9\u4e2a RSA* \u5c31\u80fd\u76f4\u63a5\u7528\u4e8e\u52a0\u5bc6\u51fd\u6570&#xff0c;\u5982 RSA_public_encrypt()\u3002\u5982\u679c\u6211\u4eec\u624b\u52a8\u4ece JSON \u6216\u7f51\u7edc\u63a5\u6536\u7684\u662f\u88f8\u7684 Base64 \u5b57\u7b26\u4e32&#xff08;\u4e0d\u662f PEM \u6587\u4ef6&#xff09;&#xff0c;\u90a3\u786e\u5b9e\u9700\u8981\u4f60\u624b\u52a8 Base64 \u89e3\u7801\u3002\u4f46\u672c\u9879\u76ee\u662f\u901a\u8fc7 PEM \u6587\u4ef6\u52a0\u8f7d&#xff0c;\u56e0\u6b64\u81ea\u52a8\u5b8c\u6210\u4e86\u89e3\u7801\u8fc7\u7a0b\u3002 \u8be6\u7ec6\u7684\u53ef\u4ee5\u81ea\u884c\u4e86\u89e3openssl\u91cc\u9762\u7684BIO\u63a5\u53e3\u3002<\/p>\n<h2>\u4e8c\u3001\u5bc6\u94a5\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u9047\u5230\u7684\u6bb5\u9519\u8bef<\/h2>\n<h3>2.1 \u9519\u8bef\u539f\u56e0<\/h3>\n<p>\u5728\u6211\u4eec\u8c03\u8bd5\u5bc6\u94a5\u534f\u5546\u8fc7\u7a0b\u7684\u65f6\u5019\u5076\u5c14\u4f1a\u51fa\u73b0\u8fd9\u4e2a\u9519\u8bef&#xff1a; <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250503090052-6815db44341e4.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u8c03\u8bd5\u8fc7\u7a0b&#xff0c;\u6211\u4eec\u5df2\u7ecf\u89e3\u51b3\u4e86\u7b7e\u540d\u548c\u6821\u9a8c\u7b7e\u540d\u7684\u6bb5\u9519\u8bef&#xff0c;\u6240\u4ee5\u8fd9\u91cc\u5e94\u8be5\u4e0d\u662f\u7b7e\u540d\u7684\u95ee\u9898&#xff0c;\u6240\u4ee5\u6211\u4eec\u5148\u52a0\u5165\u65e5\u5fd7&#xff0c;\u770b\u770b\u662f\u5426\u662f\u751f\u6210\u5bc6\u94a5\u65b9\u9762\u7684\u95ee\u9898&#xff1a;<\/p>\n<p>string key <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">getRandKey<\/span><span class=\"token punctuation\">(<\/span>Len16<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\ncout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;\u751f\u6210\u7684\u968f\u673a\u79d8\u94a5: &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> key <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ 2. \u901a\u8fc7\u516c\u94a5\u52a0\u5bc6<\/span><br \/>\ncout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;aaaaaaaaaaaaaaaa&#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\nstring seckey <span class=\"token operator\">&#061;<\/span> rsa<span class=\"token punctuation\">.<\/span><span class=\"token function\">rsaPubKeyEncrypt<\/span><span class=\"token punctuation\">(<\/span>key<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\ncout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;\u52a0\u5bc6\u4e4b\u540e\u7684\u79d8\u94a5: &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> seckey <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><\/p>\n<p>\u7136\u540e\u901a\u8fc7\u8fd0\u884c\u6211\u4eec\u53d1\u73b0\u4e86&#xff0c;\u751f\u6210\u968f\u673a\u5bc6\u94a5\u7684\u8fc7\u7a0b\u5e76\u6ca1\u6709\u4efb\u4f55\u95ee\u9898&#xff0c;\u6bcf\u6b21\u90fd\u53ef\u4ee5\u6210\u529f\u751f\u6210&#xff0c;\u4f46\u662f\u8fd9\u4e2a\u5bc6\u94a5\u534f\u5546\u662f\u5426\u6210\u529f\u5e76\u4e0d\u4e00\u5b9a&#xff0c;\u6709\u65f6\u5019\u6210\u529f&#xff0c;\u6709\u65f6\u5019\u4e0d\u6210\u529f&#xff0c;\u6709\u65f6\u5019\u4f1a\u51fa\u73b0\u6bb5\u9519\u8bef\u3002 \u7531\u4e8e\u6709\u4e86\u7b2c\u4e00\u6b65\u7684\u7ecf\u9a8c&#xff0c;\u6240\u4ee5\u6211\u4eec\u8003\u8651\u4e8c\u8fdb\u5236\u5728\u4f20\u8f93\u7684\u8fc7\u7a0b\u4e2d\u4f1a\u81ea\u52a8\u622a\u65ad\u7684\u95ee\u9898\u3002 \u8c03\u8bd5\u601d\u8def&#xff1a; \u52a0\u5165\u5927\u91cf\u65e5\u5fd7&#xff0c;\u8be6\u7ec6\u6253\u5370&#xff0c;\u628a\u4e8c\u8fdb\u5236\u8f6c\u6210\u5341\u516d\u8fdb\u5236&#xff0c;\u5168\u90e8\u8fdb\u884c\u8f93\u51fa&#xff0c;\u53d1\u73b0&#xff0c;\u6709\u4e9b\u6570\u636e\u5728\u670d\u52a1\u5668\u7aef\u751f\u6210\u4e86\u5bc6\u6587&#xff08;\u5bc6\u94a5\u7684\u5bc6\u6587&#xff09;\u7136\u540e\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef&#xff0c;\u53d1\u73b0\u4f1a\u5c11\u4e00\u90e8\u5206&#xff0c;\u7136\u540e\u6570\u5b57\u7b26&#xff0c;\u53d1\u73b0\u9047\u5230\\\\0\u4f1a\u622a\u65ad\u3002 \u6211\u4eec\u751f\u6210\u7684\u968f\u673a\u5bc6\u94a5&#xff08;\u8fd9\u91cc\u662faes16\u5b57\u8282&#xff09;\u90fd\u662fASCII\u53ef\u89c1\u7684&#xff08;\u5bf9\u6211\u4eec\u6765\u8bf4&#xff09;&#xff0c;\u4f46\u662f\u6211\u4eec\u52a0\u5bc6\u4e4b\u540e&#xff08;\u901a\u8fc7rsa\u52a0\u5bc6&#xff09;\u6570\u636e\u5c31\u53d8\u6210\u4e86\u4e8c\u8fdb\u5236\u6570\u636e&#xff0c;\u4e8c\u8fdb\u5236\u91cc\u53ef\u80fd\u5305\u542b \\\\0&#xff08;NUL&#xff09;\u3001\u63a7\u5236\u5b57\u7b26\u3001\u751a\u81f3\u975e UTF-8 \u5e8f\u5217&#xff0c;\u6253\u5370\u5230\u7ec8\u7aef\u6216\u5f53\u4f5c C \u5b57\u7b26\u4e32\u770b\u5c31\u50cf\u201c\u4e71\u7801\u201d\u6216\u7a81\u7136\u622a\u65ad\u3002 \u90a3\u4e48\u73b0\u5728\u6211\u4eec\u603b\u7ed3\u4e00\u4e0b&#xff1a;<\/p>\n<ul>\n<li>\u5982\u679c\u52a0\u5bc6\u4e4b\u540e\\\\0\u51fa\u73b0\u5728\u4e2d\u95f4\u4f4d\u7f6e&#xff0c;\u76f4\u63a5\u622a\u65ad&#xff0c;\u53ea\u80fd\u6536\u5230\u4e00\u90e8\u5206&#xff0c;\u6c42\u7684\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u7684\u90e8\u5206\u6709\u95ee\u9898&#xff0c;\u6240\u4ee5\u52a0\u5bc6\u7684\u65f6\u5019\u4f1a\u51fa\u73b0\u6bb5\u9519\u8bef\u3002<\/li>\n<li>\u6bd4\u8f83\u5e78\u8fd0&#xff0c;\u6ca1\u6709\\\\0&#xff0c;\u90a3\u4e48\u7a0b\u5e8f\u6b63\u5e38\u6267\u884c\u3002<\/li>\n<\/ul>\n<h3>2.2 \u89e3\u51b3\u65b9\u6848<\/h3>\n<p>\u4e0d\u80fd\u8fdb\u884c\u54c8\u5e0c&#xff0c;\u56e0\u4e3a\u672c\u8eab\u4e0d\u662f\u957f\u5ea6\u7684\u95ee\u9898&#xff0c;\u8ddf\u54c8\u5e0c\u516b\u7aff\u5b50\u6253\u4e0d\u7740\u3002 \u6700\u7b80\u5355\u7684\u5904\u7406\u65b9\u5f0f\u5c31\u662f\u7528base64\u5bf9\u4e8c\u8fdb\u5236\u6570\u636e\u8fdb\u884c\u7f16\u7801&#xff0c;\u4e0d\u7ba1\u53ef\u89c1\u4e0d\u53ef\u89c1\u90fd\u628a\u4ed6\u53d8\u4e3a\u53ef\u89c1\u5b57\u7b26&#xff0c;\u5728\u8ba1\u7b97\u4e8c\u8fdb\u5236\u5b57\u7b26\u4e32\u957f\u5ea6\u662f\u5c31\u4e0d\u4f1a\u6709\\\\0\u51fa\u73b0\u3002 base64\u7f16\u7801\u8fc7\u7a0b&#xff1a;<\/p>\n<p>string <span class=\"token class-name\">RsaCrypto<\/span><span class=\"token operator\">::<\/span><span class=\"token function\">toBase64<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span><span class=\"token operator\">*<\/span> str<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> len<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\nBIO<span class=\"token operator\">*<\/span> mem <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">BIO_new<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">BIO_s_mem<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nBIO<span class=\"token operator\">*<\/span> bs64 <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">BIO_new<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">BIO_f_base64<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ mem\u6dfb\u52a0\u5230bs64\u4e2d<\/span><br \/>\nbs64 <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">BIO_push<\/span><span class=\"token punctuation\">(<\/span>bs64<span class=\"token punctuation\">,<\/span> mem<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ \u5199\u6570\u636e<\/span><br \/>\n<span class=\"token function\">BIO_write<\/span><span class=\"token punctuation\">(<\/span>bs64<span class=\"token punctuation\">,<\/span> str<span class=\"token punctuation\">,<\/span> len<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">BIO_flush<\/span><span class=\"token punctuation\">(<\/span>bs64<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ \u5f97\u5230\u5185\u5b58\u5bf9\u8c61\u6307\u9488<\/span><br \/>\nBUF_MEM <span class=\"token operator\">*<\/span>memPtr<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">BIO_get_mem_ptr<\/span><span class=\"token punctuation\">(<\/span>bs64<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>memPtr<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nstring retStr <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">string<\/span><span class=\"token punctuation\">(<\/span>memPtr<span class=\"token operator\">-&gt;<\/span>data<span class=\"token punctuation\">,<\/span> memPtr<span class=\"token operator\">-&gt;<\/span>length <span class=\"token operator\">&#8211;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">BIO_free_all<\/span><span class=\"token punctuation\">(<\/span>bs64<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">return<\/span> retStr<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>base64\u89e3\u7801\u8fc7\u7a0b&#xff1a;<\/p>\n<p><span class=\"token keyword\">char<\/span><span class=\"token operator\">*<\/span> <span class=\"token class-name\">RsaCrypto<\/span><span class=\"token operator\">::<\/span><span class=\"token function\">fromBase64<\/span><span class=\"token punctuation\">(<\/span>string str<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">int<\/span> length <span class=\"token operator\">&#061;<\/span> str<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nBIO<span class=\"token operator\">*<\/span> bs64 <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">BIO_new<\/span><span class=\"token punctuation\">(<\/span><span class=\"token function\">BIO_f_base64<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nBIO<span class=\"token operator\">*<\/span> mem <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">BIO_new_mem_buf<\/span><span class=\"token punctuation\">(<\/span>str<span class=\"token punctuation\">.<\/span><span class=\"token function\">data<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> length<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">BIO_push<\/span><span class=\"token punctuation\">(<\/span>bs64<span class=\"token punctuation\">,<\/span> mem<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">char<\/span><span class=\"token operator\">*<\/span> buffer <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token keyword\">char<\/span><span class=\"token punctuation\">[<\/span>length<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">memset<\/span><span class=\"token punctuation\">(<\/span>buffer<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> length<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">BIO_read<\/span><span class=\"token punctuation\">(<\/span>bs64<span class=\"token punctuation\">,<\/span> buffer<span class=\"token punctuation\">,<\/span> length<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token function\">BIO_free_all<\/span><span class=\"token punctuation\">(<\/span>bs64<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">return<\/span> buffer<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u627e\u5230\u4e8c\u8fdb\u5236\u6570\u636e\u751f\u6210\u7684\u90a3\u4e2a\u4f4d\u7f6e&#xff08;\u670d\u52a1\u5668\u7aef&#xff09;&#xff0c;\u516c\u94a5\u52a0\u5bc6\u540e\u7acb\u5373\u8fdb\u884cbase64\u7f16\u7801&#xff1a;<\/p>\n<p>string <span class=\"token class-name\">RsaCrypto<\/span><span class=\"token operator\">::<\/span><span class=\"token function\">rsaPubKeyEncrypt<\/span><span class=\"token punctuation\">(<\/span>string data<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\ncout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;\u52a0\u5bc6\u6570\u636e\u957f\u5ea6: &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> data<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ \u8ba1\u7b97\u516c\u94a5\u957f\u5ea6<\/span><br \/>\n<span class=\"token keyword\">int<\/span> keyLen <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">RSA_size<\/span><span class=\"token punctuation\">(<\/span>m_publicKey<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\ncout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;pubKey len: &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> keyLen <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ \u7533\u8bf7\u5185\u5b58\u7a7a\u95f4<\/span><br \/>\n<span class=\"token keyword\">char<\/span><span class=\"token operator\">*<\/span> encode <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token keyword\">char<\/span><span class=\"token punctuation\">[<\/span>keyLen <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ \u4f7f\u7528\u516c\u94a5\u52a0\u5bc6<\/span><br \/>\n<span class=\"token comment\">\/\/encode \u7f13\u51b2\u533a\u91cc\u5b58\u7684\u662fRSA\u7b97\u6cd5\u751f\u6210\u7684\u4efb\u610f\u5b57\u8282&#xff0c;\u5176\u4e2d\u96f6\u503c\u5b57\u8282\u4f1a\u8ba9\u5b57\u7b26\u4e32\u622a\u65ad\u3002<\/span><br \/>\n<span class=\"token keyword\">int<\/span> ret <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">RSA_public_encrypt<\/span><span class=\"token punctuation\">(<\/span>data<span class=\"token punctuation\">.<\/span><span class=\"token function\">size<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">unsigned<\/span> <span class=\"token keyword\">char<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span>data<span class=\"token punctuation\">.<\/span><span class=\"token function\">data<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n<span class=\"token punctuation\">(<\/span><span class=\"token keyword\">unsigned<\/span> <span class=\"token keyword\">char<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span>encode<span class=\"token punctuation\">,<\/span> m_publicKey<span class=\"token punctuation\">,<\/span> RSA_PKCS1_PADDING<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nstring retStr <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">string<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>ret <span class=\"token operator\">&gt;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token comment\">\/\/ \u52a0\u5bc6\u6210\u529f<\/span><br \/>\ncout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;ret: &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> ret <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;, keyLen: &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> keyLen <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\nretStr <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">toBase64<\/span><span class=\"token punctuation\">(<\/span>encode<span class=\"token punctuation\">,<\/span> ret<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">else<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">ERR_print_errors_fp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token constant\">stdout<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token comment\">\/\/ \u91ca\u653e\u8d44\u6e90<\/span><br \/>\n<span class=\"token keyword\">delete<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span>encode<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">return<\/span> retStr<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/retStr\u91cc\u662fASCII\u8303\u56f4\u5185\u7684Base64\u6587\u672c&#xff0c;\u65e0\u8bba\u91cc\u9762\u6709\u6ca1\u6709\u539f\u59cb\u7684\\\\0&#xff0c;\u90fd\u4e0d\u4f1a\u88ab\u622a\u65ad&#xff0c;\u53ef\u4ee5\u5b89\u5168\u5730\u5f53\u666e C&#043;&#043;\u5b57\u7b26\u4e32\u3002<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u627e\u5230base64\u7f16\u7801\u540e\u7684\u6570\u636e\u89e3\u7801\u6210\u4e8c\u8fdb\u5236\u539f\u59cb\u6570\u636e&#xff0c;\u7136\u540e\u6b63\u5e38\u8fdb\u884c\u89e3\u5bc6\u7b49\u5230aes\u5bc6\u94a5&#xff08;\u5ba2\u6237\u7aef&#xff09;&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/\u65b0\u5efaBase64\u89e3\u7801BIO\u548c\u4e00\u4e2a\u5185\u5b58BIO&#xff08;\u628aBase64\u6587\u672c\u585e\u8fdb\u53bb&#xff09;<\/span><br \/>\n<span class=\"token comment\">\/\/\u8bfb\u51fa\u89e3\u7801\u540e\u7684\u539f\u59cb\u5b57\u8282\u6d41&#xff0c;\u957f\u5ea6\u4e0e RSA \u5bc6\u94a5\u957f\u5ea6\u4e00\u81f4\u3002<\/span><br \/>\n<span class=\"token comment\">\/\/\u5f97\u5230\u7684text\u7f13\u51b2\u533a\u5c31\u662f\u5b8c\u6574\u7684\u4e8c\u8fdb\u5236\u5bc6\u6587&#xff0c;\u65e0\u4e22\u5931&#xff0c;\u7136\u540e\u4ea4\u7ed9 OpenSSL\u505a\u79c1\u94a5\u89e3\u5bc6&#xff0c;\u6062\u590d\u51fa\u539f\u59cb\u5bc6\u94a5<\/span><br \/>\nstring <span class=\"token class-name\">RsaCrypto<\/span><span class=\"token operator\">::<\/span><span class=\"token function\">rsaPriKeyDecrypt<\/span><span class=\"token punctuation\">(<\/span>string encData<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token comment\">\/\/ text\u6307\u5411\u7684\u5185\u5b58\u9700\u8981\u91ca\u653e<\/span><br \/>\n<span class=\"token keyword\">char<\/span><span class=\"token operator\">*<\/span> text <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">fromBase64<\/span><span class=\"token punctuation\">(<\/span>encData<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ \u8ba1\u7b97\u79c1\u94a5\u957f\u5ea6<\/span><br \/>\n<span class=\"token comment\">\/\/cout &lt;&lt; &#034;\u89e3\u5bc6\u6570\u636e\u957f\u5ea6: &#034; &lt;&lt; text.size() &lt;&lt; endl;<\/span><br \/>\n<span class=\"token keyword\">int<\/span> keyLen <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">RSA_size<\/span><span class=\"token punctuation\">(<\/span>m_privateKey<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ \u4f7f\u7528\u79c1\u94a5\u89e3\u5bc6<\/span><br \/>\n<span class=\"token keyword\">char<\/span><span class=\"token operator\">*<\/span> decode <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token keyword\">char<\/span><span class=\"token punctuation\">[<\/span>keyLen <span class=\"token operator\">&#043;<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/ \u6570\u636e\u52a0\u5bc6\u5b8c\u6210\u4e4b\u540e, \u5bc6\u6587\u957f\u5ea6 &#061;&#061; \u79d8\u94a5\u957f\u5ea6<\/span><br \/>\n<span class=\"token keyword\">int<\/span> ret <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">RSA_private_decrypt<\/span><span class=\"token punctuation\">(<\/span>keyLen<span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">unsigned<\/span> <span class=\"token keyword\">char<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span>text<span class=\"token punctuation\">,<\/span><br \/>\n<span class=\"token punctuation\">(<\/span><span class=\"token keyword\">unsigned<\/span> <span class=\"token keyword\">char<\/span><span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span>decode<span class=\"token punctuation\">,<\/span> m_privateKey<span class=\"token punctuation\">,<\/span> RSA_PKCS1_PADDING<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\nstring retStr <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">string<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>ret <span class=\"token operator\">&gt;&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\nretStr <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">string<\/span><span class=\"token punctuation\">(<\/span>decode<span class=\"token punctuation\">,<\/span> ret<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br 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punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">return<\/span> retStr<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h2>\u4e09\u3001\u6d4b\u8bd5\u7ed3\u679c<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250503090052-6815db44d8554.jpg\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> 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