\/* MD \/ \u5bcc\u6587\u672c\u4e2d\u7684 .toc\uff08\u542b\u535a\u5ba2\u56ed\u642c\u5bb6\u7b49\u5d4c\u5957\u7ed3\u6784\uff09\uff1b.toc-box \u5728\u4fa7\u680f\uff0c\u4e0d\u53d7\u5f71\u54cd *\/
\n #content_views .toc,
\n \/* \u7f16\u8f91\u5668\u5e38\u5728\u76ee\u5f55\u524d\u540e\u63d2\u5165\u7a7a p\uff08:empty \u4ecd\u5360 20px\uff09\uff0c\u4e00\u5e76\u53bb\u6389\u907f\u514d\u9876\u7a7a\u9699 *\/
\n #content_views.markdown_views > p:empty:has(+ .toc),
\n #content_views.markdown_views > .toc + p:empty,
\n \/* \u5bcc\u6587\u672c\u65e7\u7248\u76ee\u5f55\u6807\u8bb0 *\/
\n #content_views.htmledit_views #main-toc,
\n #content_views.htmledit_views #hr-toc,
\n #content_views.htmledit_views p[id*=\\”-toc\\”] {
\n display: none !important;
\n }
\n \/* \u76ee\u5f55\u53bb\u6389\u540e\uff0c\u7d27\u8ddf\u7684\u9996\u4e2a\u6807\u9898\u4e0d\u518d\u591a\u51fa\u4e00\u5757\u4e0a\u8fb9\u8ddd *\/
\n #content_views.markdown_views > .toc + h1,
\n #content_views.markdown_views > .toc + h2,
\n #content_views.markdown_views > .toc + h3,
\n #content_views.markdown_views > .toc + h4,
\n #content_views.markdown_views > .toc + p:empty + h1,
\n #content_views.markdown_views > .toc + p:empty + h2,
\n #content_views.markdown_views > .toc + p:empty + h3,
\n #content_views.markdown_views > .toc + p:empty + h4 {
\n margin-top: 0 !important;
\n }<\/p>\n
"\u9c9c\u679c\u56ed"\u7684\u7ebf\u4e0a\u4e1a\u52a1\u5728\u8fc7\u53bb\u4e24\u5e74\u4e2d\u98de\u901f\u53d1\u5c55，\u4f46\u540c\u65f6\u4e5f\u6210\u4e3a\u4e86\u7f51\u7edc\u653b\u51fb\u7684\u9ad8\u9891\u76ee\u6807\u3002\u4e0a\u4e2a\u6708\u7684\u4fc3\u9500\u6d3b\u52a8\u4e2d，\u5b89\u5168\u56e2\u961f\u76d1\u6d4b\u5230\u591a\u8d77\u4e2d\u95f4\u4eba\u653b\u51fb（MITM）\u5c1d\u8bd5：\u653b\u51fb\u8005\u5728\u516c\u5171WiFi\u73af\u5883\u4e0b\u52ab\u6301\u7528\u6237\u4f1a\u8bdd，\u7be1\u6539\u8ba2\u5355\u91d1\u989d\u548c\u6536\u8d27\u5730\u5740\u3002\u867d\u7136\u98ce\u63a7\u7cfb\u7edf\u53ca\u65f6\u62e6\u622a\u4e86\u5927\u90e8\u5206\u5f02\u5e38\u4ea4\u6613，\u4f46\u8fd9\u4e00\u4e8b\u4ef6\u8ba9\u7ba1\u7406\u5c42\u610f\u8bc6\u5230\u2014\u2014\u5168\u7ad9HTTPS\u5347\u7ea7\u5df2\u7ecf\u523b\u4e0d\u5bb9\u7f13\u3002<\/p>\n
\u6b64\u5916，\u968f\u7740iOS\u548cAndroid\u7cfb\u7edf\u5bf9\u975eHTTPS\u6d41\u91cf\u7684\u9650\u5236\u8d8a\u6765\u8d8a\u4e25\u683c（\u5982iOS\u7684ATS\u7b56\u7565\u8981\u6c42\u6240\u6709\u7f51\u7edc\u8bf7\u6c42\u5fc5\u987b\u4f7f\u7528TLS 1.2\u4ee5\u4e0a\u7248\u672c），\u9c9c\u679c\u56ed\u7684\u6df7\u5408\u5185\u5bb9（Mixed Content）\u95ee\u9898\u4e5f\u5f00\u59cb\u66b4\u9732：\u4e3b\u7ad9\u867d\u7136\u542f\u7528\u4e86HTTPS，\u4f46\u90e8\u5206\u9759\u6001\u8d44\u6e90\u4ecd\u901a\u8fc7HTTP\u52a0\u8f7d，\u5bfc\u81f4\u6d4f\u89c8\u5668\u5b89\u5168\u9501\u6807\u5fd7\u5f02\u5e38，\u7528\u6237\u4fe1\u4efb\u5ea6\u4e0b\u964d\u3002<\/p>\n
\u8fd0\u7ef4\u56e2\u961f\u8d1f\u8d23\u4eba\u628aHTTPS\u5168\u9762\u8fc1\u79fb\u7684\u4efb\u52a1\u4ea4\u7ed9\u4e86\u5c0f\u80d6\u3002\u5c0f\u80d6\u7b2c\u4e00\u6b21\u63a5\u89e6SSL\u8bc1\u4e66，\u5728\u4e91\u5e73\u53f0\u8d2d\u4e70\u4e86\u4e00\u5f20\u5355\u57df\u540d\u8bc1\u4e66\u540e，\u7167\u7740\u7f51\u4e0a\u7684\u6559\u7a0b\u5728Nginx\u91cc\u914d\u4e86ssl_certificate\u548cssl_certificate_key，\u7136\u540e\u5ba3\u5e03"\u641e\u5b9a"\u3002\u4f46\u5c0f\u767d\u5728\u626b\u63cf\u6d4b\u8bd5\u65f6\u53d1\u73b0\u4e86\u4e0d\u5c11\u95ee\u9898：\u670d\u52a1\u5668\u4ecd\u652f\u6301\u5df2\u7206\u6f0f\u6d1e\u7684SSLv3\u534f\u8bae\u3001\u8bc1\u4e66\u94fe\u4e0d\u5b8c\u6574\u5bfc\u81f4\u90e8\u5206\u6d4f\u89c8\u5668\u8b66\u544a\u3001\u6ca1\u6709\u5f00\u542fOCSP Stapling\u5bfc\u81f4\u9996\u6b21\u8fde\u63a5\u63e1\u624b\u8017\u65f6\u957f\u8fbe400\u6beb\u79d2\u3001HTTP\/2\u4e5f\u672a\u542f\u7528\u3002<\/p>\n
\u5927\u5e08\u5728\u8bc4\u5ba1\u4f1a\u4e0a\u6307\u51fa：\u201cHTTPS\u4e0d\u662f\u7b80\u5355\u5730\u52a0\u4e0a\u4e00\u5f20\u8bc1\u4e66\u5c31\u80fd\u9ad8\u6795\u65e0\u5fe7\u3002TLS\u534f\u8bae\u672c\u8eab\u6709\u591a\u4e2a\u7248\u672c（1.0\/1.1\/1.2\/1.3），\u6bcf\u4e2a\u7248\u672c\u7684\u5b89\u5168\u6027\u5dee\u5f02\u5de8\u5927；\u63e1\u624b\u8fc7\u7a0b\u6d89\u53ca\u975e\u5bf9\u79f0\u52a0\u5bc6\u3001\u5bf9\u79f0\u52a0\u5bc6\u3001\u8bc1\u4e66\u9a8c\u8bc1\u7b49\u591a\u4e2a\u73af\u8282，\u4efb\u4f55\u4e00\u73af\u914d\u7f6e\u4e0d\u5f53\u90fd\u4f1a\u5f71\u54cd\u5b89\u5168\u6027\u548c\u6027\u80fd\u3002\u6211\u4eec\u9700\u8981\u7cfb\u7edf\u6027\u5730\u7406\u89e3SSL\/TLS\u7684\u5b8c\u6574\u94fe\u8def，\u5e76\u5efa\u7acb\u4e00\u4e2a\u80fd\u83b7\u5f97Qualys A+\u8bc4\u7ea7\u7684\u914d\u7f6e\u57fa\u7ebf\u3002\u201d<\/p>\n
\u4e8e\u662f，\u5927\u5e08\u5e26\u9886\u56e2\u961f\u8e0f\u4e0a\u4e86\u4eceHTTP\u5230HTTPS\u7684\u5b8c\u6574\u5347\u7ea7\u4e4b\u65c5\u3002<\/p>\n
\u5468\u56db\u4e0a\u5348，\u5b89\u5168\u4e13\u9879\u4f1a\u8bae\u5ba4\u7684\u7a97\u5e18\u534a\u62c9\u7740，\u6c14\u6c1b\u6bd4\u5e73\u65f6\u4e25\u8083\u3002\u5c0f\u80d6\u9762\u524d\u644a\u7740SSL\u8bc1\u4e66\u6587\u4ef6\u548c\u4e00\u4e32openssl\u547d\u4ee4\u7684\u7b14\u8bb0\u3002\u5c0f\u767d\u6b63\u5728\u7528SSL Labs\u7684\u5728\u7ebf\u626b\u63cf\u5de5\u5177\u6d4b\u8bd5\u73b0\u7f51\u914d\u7f6e，\u5c4f\u5e55\u4e0a\u7684\u8bc4\u7ea7\u8d6b\u7136\u663e\u793a\u7740\u523a\u773c\u7684"B"\u3002\u5927\u5e08\u63a8\u95e8\u800c\u5165，\u624b\u91cc\u62ff\u7740\u6253\u5370\u51fa\u6765\u7684SSL\u63e1\u624b\u65f6\u5e8f\u56fe\u3002<\/p>\n
\u5c0f\u80d6（\u62ac\u8d77\u5934，\u6709\u4e9b\u6cae\u4e27）：\u201c\u5927\u5e08，\u8bc1\u4e66\u6211\u5df2\u7ecf\u914d\u597d\u4e86，\u6d4f\u89c8\u5668\u8bbf\u95ee\u4e5f\u80fd\u770b\u5230\u5c0f\u7eff\u9501\u3002\u4e3a\u4ec0\u4e48\u5c0f\u767d\u7684\u626b\u63cf\u5de5\u5177\u53ea\u7ed9\u4e86B\u7ea7？\u6211\u770b\u7f51\u4e0a\u6709\u4eba\u8bf4\u914d\u4e86\u8bc1\u4e66\u5c31\u662fHTTPS\u4e86\u3002\u201d<\/p>\n
\u5927\u5e08（\u628a\u65f6\u5e8f\u56fe\u644a\u5728\u684c\u4e0a）：\u201c\u5c0f\u7eff\u9501\u53ea\u662f\u6700\u57fa\u7840\u7684\u95e8\u69db\u3002SSL Labs\u7684\u8bc4\u7ea7\u4eceF\u5230A+，\u6d89\u53ca\u534f\u8bae\u7248\u672c\u3001\u5bc6\u94a5\u4ea4\u6362\u3001\u8bc1\u4e66\u5f3a\u5ea6\u3001Forward Secrecy\u3001HSTS\u7b49\u591a\u4e2a\u7ef4\u5ea6\u3002\u4f60\u53ea\u5b8c\u6210\u4e86\u2019\u6709\u8bc1\u4e66\u2019\u8fd9\u4e00\u6b65，\u8ddd\u79bb\u751f\u4ea7\u7ea7\u5b89\u5168\u8fd8\u5dee\u5f97\u8fdc\u3002\u201d<\/p>\n
\u5c0f\u767d（\u628a\u7b14\u8bb0\u672c\u8f6c\u5411\u5927\u5bb6）：\u201c\u6211\u5217\u4e86\u4e00\u4e0b\u6211\u4eec\u73b0\u7f51\u7684\u95ee\u9898：\u7b2c\u4e00，\u670d\u52a1\u5668\u4ecd\u63a5\u53d7TLS 1.0\u548cTLS 1.1\u8fde\u63a5，\u8fd9\u4e24\u4e2a\u534f\u8bae\u5df2\u7ecf\u88abPOODLE\u3001BEAST\u7b49\u653b\u51fb\u8bc1\u660e\u4e0d\u5b89\u5168；\u7b2c\u4e8c，\u8bc1\u4e66\u94fe\u53ea\u53d1\u4e86\u670d\u52a1\u5668\u8bc1\u4e66，\u6ca1\u6709\u5305\u542b\u4e2d\u95f4CA\u8bc1\u4e66，Android\u4f4e\u7248\u672c\u8bbe\u5907\u76f4\u63a5\u62a5\u8bc1\u4e66\u4e0d\u53d7\u4fe1\u4efb；\u7b2c\u4e09，\u6ca1\u6709\u542f\u7528OCSP Stapling，\u6bcf\u6b21\u65b0\u8fde\u63a5\u90fd\u8981\u5411CA\u7684OCSP\u670d\u52a1\u5668\u67e5\u8be2\u8bc1\u4e66\u540a\u9500\u72b6\u6001，\u589e\u52a0\u4e86200\u5230400\u6beb\u79d2\u7684\u5ef6\u8fdf；\u7b2c\u56db，HTTP Strict Transport Security（HSTS）\u6ca1\u914d，\u7528\u6237\u7b2c\u4e00\u6b21\u901a\u8fc7HTTP\u8bbf\u95ee\u65f6\u4ecd\u5b58\u5728\u88ab\u52ab\u6301\u7684\u98ce\u9669\u3002\u201d<\/p>\n
\u5927\u5e08（\u70b9\u70b9\u5934）：\u201c\u5c0f\u767d\u603b\u7ed3\u5f97\u975e\u5e38\u5168\u9762\u3002\u8ba9\u6211\u5148\u5e26\u4f60\u4eec\u56de\u987e\u4e00\u4e0bSSL\/TLS\u63e1\u624b\u7684\u5b8c\u6574\u6d41\u7a0b，\u7406\u89e3\u4e86\u539f\u7406，\u914d\u7f6e\u624d\u6709\u7075\u9b42\u3002\u201d<\/p>\n
\u5927\u5e08\u5728\u767d\u677f\u4e0a\u753b\u4e0bTLS 1.2\u7684\u63e1\u624b\u65f6\u5e8f\u56fe：<\/p>\n
\u5ba2\u6237\u7aef \u670d\u52a1\u5668
\n | |
\n | ——– ClientHello —————–> | \u652f\u6301\u7684TLS\u7248\u672c\u3001\u5bc6\u7801\u5957\u4ef6\u3001\u968f\u673a\u6570
\n | |
\n | <——- ServerHello —————– | \u9009\u5b9a\u7684TLS\u7248\u672c\u3001\u5bc6\u7801\u5957\u4ef6\u3001\u968f\u673a\u6570
\n | <——- Certificate —————– | \u670d\u52a1\u5668\u8bc1\u4e66（\u542b\u516c\u94a5）
\n | <——- ServerHelloDone ————- |
\n | |
\n | ——– ClientKeyExchange ———–> | \u7528\u670d\u52a1\u5668\u516c\u94a5\u52a0\u5bc6\u9884\u4e3b\u5bc6\u94a5
\n | ——– [ChangeCipherSpec] ———-> |
\n | ——– Finished ——————–> | \u52a0\u5bc6\u63e1\u624b\u5b8c\u6210
\n | |
\n | <——- [ChangeCipherSpec] ———- |
\n | <——- Finished ——————– |
\n | |
\n | <======= \u52a0\u5bc6\u5e94\u7528\u6570\u636e\u4f20\u8f93 ==========> |<\/p>\n
\u5927\u5e08（\u6307\u7740\u56fe\u793a）：\u201c\u8fd9\u662fTLS 1.2\u7684\u5b8c\u6574\u63e1\u624b，\u9700\u89812\u4e2aRTT（\u5f80\u8fd4\u65f6\u5ef6）\u3002\u63e1\u624b\u5b8c\u6210\u540e，\u53cc\u65b9\u534f\u5546\u51fa\u5bf9\u79f0\u52a0\u5bc6\u5bc6\u94a5，\u540e\u7eed\u5e94\u7528\u6570\u636e\u90fd\u7528\u8fd9\u4e2a\u5bc6\u94a5\u52a0\u5bc6\u4f20\u8f93\u3002TLS 1.3\u5bf9\u6b64\u505a\u4e86\u91cd\u5927\u4f18\u5316，\u628a\u63e1\u624b\u7f29\u51cf\u52301\u4e2aRTT，\u751a\u81f3\u5728\u4f1a\u8bdd\u6062\u590d\u573a\u666f\u4e0b\u53ef\u4ee5\u505a\u52300-RTT\u3002\u201d<\/p>\n
\u5c0f\u80d6（\u76b1\u7740\u7709）：\u201c\u5927\u5e08，\u6211\u542c\u8bf4\u63e1\u624b\u8fc7\u7a0b\u5f88\u8017CPU，\u56e0\u4e3a\u6d89\u53ca\u975e\u5bf9\u79f0\u52a0\u5bc6\u3002\u9c9c\u679c\u56ed\u7684QPS\u5cf0\u503c\u6709\u4e00\u4e07\u4e94，\u5168\u90e8HTTPS\u540e\u670d\u52a1\u5668\u625b\u5f97\u4f4f\u5417？\u201d<\/p>\n
\u5927\u5e08：\u201c\u8fd9\u662f\u4e2a\u597d\u95ee\u9898\u3002\u975e\u5bf9\u79f0\u52a0\u5bc6（RSA\/ECDHE）\u786e\u5b9e\u6bd4\u5bf9\u79f0\u52a0\u5bc6\u6d88\u8017\u66f4\u591aCPU，\u4f46\u73b0\u4ee3\u670d\u52a1\u5668\u786c\u4ef6\u901a\u5e38\u53ef\u4ee5\u627f\u53d7\u3002\u66f4\u91cd\u8981\u7684\u662f，TLS 1.3\u548cTLS 1.2\u652f\u6301ECDHE\u5bc6\u94a5\u4ea4\u6362，\u914d\u5408\u692d\u5706\u66f2\u7ebf\u7b97\u6cd5（\u5982X25519），\u8ba1\u7b97\u5f00\u9500\u5df2\u7ecf\u5927\u5927\u964d\u4f4e\u3002\u6b64\u5916，Nginx\u7684SSL\u4f1a\u8bdd\u7f13\u5b58（Session Cache）\u548c\u4f1a\u8bdd\u7968\u636e（Session Tickets）\u53ef\u4ee5\u8ba9\u91cd\u590d\u8bbf\u95ee\u7684\u5ba2\u6237\u7aef\u590d\u7528\u4e4b\u524d\u7684\u63e1\u624b\u7ed3\u679c，\u8df3\u8fc7\u5b8c\u6574\u7684\u63e1\u624b\u6d41\u7a0b\u3002\u201d<\/p>\n
\u5c0f\u767d（\u8ffd\u95ee）：\u201cSession Cache\u548cSession Tickets\u6709\u4ec0\u4e48\u533a\u522b？\u201d<\/p>\n
\u5927\u5e08：\u201c\u4e24\u8005\u90fd\u662f\u4e3a\u4e86\u5b9e\u73b0\u4f1a\u8bdd\u6062\u590d（Session Resumption），\u4f46\u673a\u5236\u4e0d\u540c\u3002\u201d<\/p>\n
\u201cSession Cache\u662f\u670d\u52a1\u5668\u7aef\u7f13\u5b58：Nginx\u5728\u5185\u5b58\u4e2d\u4fdd\u5b58\u5df2\u534f\u5546\u7684\u4f1a\u8bdd\u53c2\u6570（Session ID -> \u4e3b\u5bc6\u94a5\u7684\u6620\u5c04）\u3002\u5f53\u5ba2\u6237\u7aef\u5728\u540e\u7eed\u8fde\u63a5\u4e2d\u53d1\u9001\u76f8\u540c\u7684Session ID，\u670d\u52a1\u5668\u76f4\u63a5\u4ece\u7f13\u5b58\u4e2d\u67e5\u627e\u5e76\u6062\u590d\u4f1a\u8bdd\u3002\u4f18\u70b9\u662f\u7b80\u5355\u53ef\u9760，\u7f3a\u70b9\u662f\u5728\u591aworker\u6216\u591a\u673a\u96c6\u7fa4\u573a\u666f\u4e0b，\u7f13\u5b58\u4e0d\u5171\u4eab，\u547d\u4e2d\u7387\u53d7\u9650\u3002\u201d<\/p>\n
\u201cSession Tickets\u662f\u5ba2\u6237\u7aef\u7f13\u5b58：\u670d\u52a1\u5668\u628a\u4e00\u4e2a\u52a0\u5bc6\u8fc7\u7684\u4f1a\u8bdd\u72b6\u6001（ticket）\u53d1\u7ed9\u5ba2\u6237\u7aef，\u5ba2\u6237\u7aef\u5728\u540e\u7eed\u8fde\u63a5\u4e2d\u628a\u8fd9\u4e2aticket\u5e26\u56de\u6765，\u670d\u52a1\u5668\u89e3\u5bc6\u540e\u5373\u53ef\u6062\u590d\u4f1a\u8bdd\u3002\u4f18\u70b9\u662f\u72b6\u6001\u5b58\u50a8\u5728\u5ba2\u6237\u7aef，\u5929\u7136\u652f\u6301\u591a\u673a\u96c6\u7fa4；\u7f3a\u70b9\u662f\u5982\u679cticket\u5bc6\u94a5\u6cc4\u9732，\u653b\u51fb\u8005\u53ef\u4ee5\u89e3\u5bc6\u5386\u53f2\u6d41\u91cf\u2014\u2014\u4e0d\u8fc7\u53ea\u8981\u5b9a\u671f\u8f6e\u6362\u5bc6\u94a5，\u98ce\u9669\u662f\u53ef\u63a7\u7684\u3002\u201d<\/p>\n
\u5c0f\u80d6（\u604d\u7136\u5927\u609f）：\u201c\u90a3\u6211\u4eec\u662f\u4e0d\u662f\u4e24\u4e2a\u90fd\u5f00？\u201d<\/p>\n
\u5927\u5e08：\u201c\u662f\u7684，Nginx\u53ef\u4ee5\u540c\u65f6\u5f00\u542f\u4e24\u79cd\u673a\u5236，\u8ba9\u5ba2\u6237\u7aef\u81ea\u884c\u9009\u62e9\u652f\u6301\u7684\u65b9\u5f0f\u3002\u201d<\/p>\n
\u5c0f\u767d（\u53c8\u629b\u51fa\u4e00\u4e2a\u95ee\u9898）：\u201c\u5927\u5e08，OCSP Stapling\u53c8\u662f\u600e\u4e48\u56de\u4e8b？\u6211\u770b\u5230\u6709\u4e9b\u5927\u5382\u7684\u8bc1\u4e66\u914d\u7f6e\u91cc\u90fd\u6709\u8fd9\u4e2a\u3002\u201d<\/p>\n
\u5927\u5e08：\u201cOCSP（Online Certificate Status Protocol）\u662f\u8bc1\u4e66\u540a\u9500\u72b6\u6001\u67e5\u8be2\u534f\u8bae\u3002\u6b63\u5e38\u60c5\u51b5\u4e0b，\u5ba2\u6237\u7aef\u6536\u5230\u670d\u52a1\u5668\u8bc1\u4e66\u540e，\u9700\u8981\u5411CA\u7684OCSP\u670d\u52a1\u5668\u53d1\u4e00\u4e2aHTTP\u8bf7\u6c42，\u8be2\u95ee\u2019\u8fd9\u5f20\u8bc1\u4e66\u6709\u6ca1\u6709\u88ab\u540a\u9500\u2019\u3002\u8fd9\u4e2a\u67e5\u8be2\u4f1a\u589e\u52a0\u4e00\u6b21\u7f51\u7edc\u5f80\u8fd4，\u800c\u4e14\u5982\u679cCA\u7684OCSP\u670d\u52a1\u5668\u5b95\u673a\u6216\u7f51\u7edc\u4e0d\u901a，\u5ba2\u6237\u7aef\u53ef\u80fd\u65e0\u6cd5\u5b8c\u6210\u8bc1\u4e66\u9a8c\u8bc1\u3002\u201d<\/p>\n
\u201cOCSP Stapling\u7684\u5de7\u5999\u4e4b\u5904\u5728\u4e8e：\u7531\u670d\u52a1\u5668\u4e3b\u52a8\u5411CA\u67e5\u8be2OCSP\u54cd\u5e94，\u7136\u540e\u628a\u8fd9\u4e2a\u54cd\u5e94\u2019\u88c5\u8ba2\u2019（Staple）\u5230\u81ea\u5df1\u7684TLS\u63e1\u624b\u4e2d，\u968fCertificate\u6d88\u606f\u4e00\u8d77\u53d1\u7ed9\u5ba2\u6237\u7aef\u3002\u5ba2\u6237\u7aef\u6536\u5230\u540e，\u76f4\u63a5\u9a8c\u8bc1\u8fd9\u4e2a\u9884\u7f6e\u7684OCSP\u54cd\u5e94\u5373\u53ef，\u65e0\u9700\u518d\u5411\u5916\u53d1\u8d77\u67e5\u8be2\u3002\u8fd9\u6837\u65e2\u51cf\u5c11\u4e86\u5ef6\u8fdf，\u53c8\u51cf\u8f7b\u4e86CA\u670d\u52a1\u5668\u7684\u538b\u529b\u3002\u201d<\/p>\n
\u5c0f\u80d6（\u62cd\u62cd\u8111\u888b）：\u201c\u8fd9\u5c31\u50cf\u662f\u53bb\u98df\u5802\u5403\u996d\u65f6，\u7a97\u53e3\u963f\u59e8\u63d0\u524d\u628a\u5065\u5eb7\u8bc1\u590d\u5370\u4ef6\u8d34\u5728\u73bb\u7483\u4e0a，\u6211\u4eec\u4e0d\u7528\u518d\u53bb\u533b\u52a1\u5ba4\u67e5\u5979\u6709\u6ca1\u6709\u88ab\u540a\u9500\u5065\u5eb7\u8bc1\u4e86\u3002\u201d<\/p>\n
\u5927\u5e08（\u5fcd\u4fca\u4e0d\u7981）：\u201c\u6bd4\u55bb\u867d\u7136\u7c97\u7c9d，\u4f46\u9053\u7406\u662f\u5bf9\u7684\u3002\u201d<\/p>\n
\u5c0f\u767d（\u7ee7\u7eed\u6df1\u5165）：\u201cHSTS\u5934\u6211\u7406\u89e3\u4e86，\u5b83\u662f\u5f3a\u5236\u6d4f\u89c8\u5668\u53ea\u7528HTTPS\u8bbf\u95ee\u3002\u90a3HTTP\/2\u548cHTTPS\u6709\u4ec0\u4e48\u5173\u7cfb？\u201d<\/p>\n
\u5927\u5e08：\u201cHTTP\/2\u867d\u7136\u89c4\u8303\u4e0a\u5141\u8bb8\u8fd0\u884c\u5728\u660e\u6587TCP\u4e4b\u4e0a（h2c），\u4f46\u6240\u6709\u4e3b\u6d41\u6d4f\u89c8\u5668\u90fd\u53ea\u652f\u6301\u57fa\u4e8eTLS\u7684HTTP\/2（h2）\u3002\u4e5f\u5c31\u662f\u8bf4，\u8981\u542f\u7528HTTP\/2，\u5fc5\u987b\u5148\u542f\u7528HTTPS\u3002HTTP\/2\u7684\u591a\u8def\u590d\u7528\u3001\u5934\u90e8\u538b\u7f29（HPACK）\u3001\u670d\u52a1\u5668\u63a8\u9001\u7b49\u7279\u6027，\u53ef\u4ee5\u5927\u5e45\u63d0\u5347HTTPS\u7684\u6027\u80fd，\u90e8\u5206\u62b5\u6d88TLS\u63e1\u624b\u5e26\u6765\u7684\u5f00\u9500\u3002\u201d<\/p>\n
\u5c0f\u80d6（\u770b\u7740\u767d\u677f\u4e0a\u7684\u6ee1\u6ee1\u5185\u5bb9）：\u201c\u539f\u6765HTTPS\u4e0d\u53ea\u662f\u52a0\u4e00\u5f20\u8bc1\u4e66，\u80cc\u540e\u6d89\u53ca\u5230\u534f\u8bae\u7248\u672c\u3001\u5bc6\u94a5\u4ea4\u6362\u3001\u4f1a\u8bdd\u6062\u590d\u3001\u8bc1\u4e66\u72b6\u6001\u3001\u4f20\u8f93\u5c42\u4f18\u5316\u8fd9\u4e48\u5e9e\u5927\u7684\u77e5\u8bc6\u4f53\u7cfb\u3002\u201d<\/p>\n
\u5927\u5e08（\u6536\u8d77\u65f6\u5e8f\u56fe）：\u201c\u6b63\u662f\u5982\u6b64\u3002\u5b89\u5168\u4ece\u6765\u4e0d\u662f\u5355\u70b9\u95ee\u9898，\u800c\u662f\u4e00\u4e2a\u7cfb\u7edf\u5de5\u7a0b\u3002\u73b0\u5728，\u6211\u4eec\u628a\u6240\u6709\u8fd9\u4e9b\u77e5\u8bc6\u70b9\u843d\u5730\u5230\u9c9c\u679c\u56ed\u7684\u914d\u7f6e\u4e2d\u3002\u201d<\/p>\n
\u73af\u5883\u51c6\u5907<\/p>\n
\u5047\u8bbe\u4f60\u5df2\u4eceCA\u673a\u6784\u83b7\u5f97\u4ee5\u4e0b\u6587\u4ef6：<\/p>\n
\u5173\u952e\u64cd\u4f5c：\u5408\u5e76\u8bc1\u4e66\u94fe<\/p>\n
\u5f88\u591a\u6d4f\u89c8\u5668\u62a5\u9519"\u8bc1\u4e66\u4e0d\u53d7\u4fe1\u4efb"，\u662f\u56e0\u4e3a\u670d\u52a1\u5668\u53ea\u53d1\u9001\u4e86\u7ec8\u7aef\u5b9e\u4f53\u8bc1\u4e66，\u6ca1\u6709\u9644\u5e26\u4e2d\u95f4\u8bc1\u4e66\u3002Nginx\u9700\u8981\u628a\u670d\u52a1\u5668\u8bc1\u4e66\u548c\u4e2d\u95f4\u8bc1\u4e66\u5408\u5e76\u5230\u4e00\u4e2a\u6587\u4ef6\u4e2d：<\/p>\n
# \u670d\u52a1\u5668\u8bc1\u4e66\u5728\u524d，\u4e2d\u95f4\u8bc1\u4e66\u5728\u540e，\u4f9d\u6b21\u8ffd\u52a0<\/span> # \u9a8c\u8bc1\u8bc1\u4e66\u94fe\u5b8c\u6574\u6027<\/span> \u9884\u671f\u8f93\u51fa：<\/p>\n xian\u679c\u56ed.fullchain.crt: OK<\/p>\n \u9a8c\u8bc1\u79c1\u94a5\u4e0e\u8bc1\u4e66\u5339\u914d：<\/p>\n # \u63d0\u53d6\u8bc1\u4e66\u7684\u516c\u94a5\u6a21\u6570<\/span> # \u63d0\u53d6\u79c1\u94a5\u7684\u516c\u94a5\u6a21\u6570<\/span> \u4e24\u4e2aMD5\u503c\u5fc5\u987b\u5b8c\u5168\u4e00\u81f4，\u5426\u5219\u8bf4\u660e\u79c1\u94a5\u4e0e\u8bc1\u4e66\u4e0d\u5339\u914d\u3002<\/p>\n user nginx; events { http { # === \u65e5\u5fd7\u683c\u5f0f === access_log logs\/access.log ssl_log;<\/p>\n # === HTTP 80\u7aef\u53e3：\u5f3a\u5236\u8df3\u8f6cHTTPS === # HSTS\u9884\u52a0\u8f7d（\u4ec5\u5f53\u786e\u8ba4\u5168\u7ad9HTTPS\u5c31\u7eea\u540e\u5f00\u542f） location \/ { # === HTTPS 443\u7aef\u53e3 === # === SSL\u8bc1\u4e66\u914d\u7f6e === # === SSL\u534f\u8bae\u7248\u672c：\u4ec5\u5141\u8bb8TLS 1.2\u548cTLS 1.3 === # === \u5bc6\u7801\u5957\u4ef6\u914d\u7f6e === # === \u692d\u5706\u66f2\u7ebf\u504f\u597d === # === SSL\u4f1a\u8bdd\u7f13\u5b58 === # === OCSP Stapling === # OCSP\u54cd\u5e94\u7684DNS\u89e3\u6790\u914d\u7f6e（\u5fc5\u987b） # === \u8bc1\u4e66\u900f\u660e\u5ea6（Certificate Transparency）=== # === \u5b89\u5168\u54cd\u5e94\u5934 === # \u9632\u6b62\u70b9\u51fb\u52ab\u6301 # XSS\u4fdd\u62a4 # MIME\u7c7b\u578b\u55c5\u63a2\u4fdd\u62a4 # \u5f15\u7528\u7b56\u7565 location \/ { location \/api\/ { location \/health { \u914d\u7f6e\u8981\u70b9\u8bf4\u660e：<\/p>\n ssl_protocols TLSv1.2 TLSv1.3：\u7981\u7528\u5df2\u4e0d\u5b89\u5168\u7684TLS 1.0\/1.1\u548cSSLv3\u3002TLS 1.3\u5728\u63e1\u624b\u6548\u7387\u548c\u5b89\u5168\u6027\u4e0a\u90fd\u6709\u663e\u8457\u63d0\u5347\u3002<\/p>\n<\/li>\n ssl_ciphers：\u5bc6\u7801\u5957\u4ef6\u7684\u6392\u5e8f\u975e\u5e38\u5173\u952e\u3002\u5217\u8868\u4e2d\u4f18\u5148\u653e\u7f6e\u652f\u6301Forward Secrecy（\u524d\u5411\u4fdd\u5bc6）\u7684\u5957\u4ef6，\u5373\u4f7f\u670d\u52a1\u5668\u79c1\u94a5\u6cc4\u9732，\u4e5f\u65e0\u6cd5\u89e3\u5bc6\u5386\u53f2\u4f1a\u8bdd\u6570\u636e\u3002<\/p>\n<\/li>\n ssl_session_cache shared:SSL:50m：\u5728worker\u8fdb\u7a0b\u95f4\u5171\u4eab\u7684\u4f1a\u8bdd\u7f13\u5b58\u300250MB\u5927\u7ea6\u53ef\u5b58\u50a8200\u4e07\u4e2a\u4f1a\u8bdd，\u9002\u7528\u4e8e\u4e2d\u7b49\u89c4\u6a21\u7684\u7ad9\u70b9\u3002<\/p>\n<\/li>\n ssl_session_tickets on：\u542f\u7528Session Tickets，\u8ba9\u4e0d\u652f\u6301Session ID\u7684\u5ba2\u6237\u7aef\u4e5f\u80fd\u4eab\u53d7\u4f1a\u8bdd\u6062\u590d\u3002<\/p>\n<\/li>\n ssl_stapling on：\u5f00\u542fOCSP Stapling\u3002resolver\u6307\u4ee4\u5fc5\u987b\u914d\u7f6e，\u56e0\u4e3aNginx\u9700\u8981\u89e3\u6790OCSP\u54cd\u5e94\u670d\u52a1\u5668\u7684\u57df\u540d\u3002<\/p>\n<\/li>\n add_header Strict-Transport-Security：HSTS\u5934\u544a\u77e5\u6d4f\u89c8\u5668\u5728\u672a\u6765\u4e24\u5e74\u5185，\u5bf9\u8be5\u57df\u540d\u53ca\u5176\u5b50\u57df\u540d\u5f3a\u5236\u4f7f\u7528HTTPS\u8bbf\u95ee\u3002preload\u6807\u5fd7\u53ef\u7533\u8bf7\u52a0\u5165\u6d4f\u89c8\u5668\u7684HSTS\u9884\u52a0\u8f7d\u5217\u8868\u3002<\/p>\n<\/li>\n \/usr\/local\/nginx\/sbin\/nginx -t<\/span> \u6d4b\u8bd5\u573a\u666f1：\u9a8c\u8bc1TLS\u7248\u672c\u548c\u5bc6\u7801\u5957\u4ef6<\/p>\n # \u6d4b\u8bd5TLS 1.3\u8fde\u63a5<\/span> # \u5728\u8f93\u51fa\u4e2d\u67e5\u627e：<\/span> # \u6d4b\u8bd5TLS 1.2\u8fde\u63a5<\/span> # \u6d4b\u8bd5\u88ab\u62d2\u7edd\u7684TLS 1.1<\/span> \u6d4b\u8bd5\u573a\u666f2：\u9a8c\u8bc1OCSP Stapling<\/p>\n openssl s_client -connect<\/span> www.xian\u679c\u56ed.com:443 -status<\/span><\/p>\n \u5728\u8f93\u51fa\u4e2d\u67e5\u627eOCSP Response Status: successful，\u5e76\u4e14This Update\u548cNext Update\u65f6\u95f4\u5728\u5408\u7406\u8303\u56f4\u5185\u3002<\/p>\n \u6d4b\u8bd5\u573a\u666f3：\u9a8c\u8bc1HTTP\/2<\/p>\n curl<\/span> -I<\/span> –http2<\/span> https:\/\/www.xian\u679c\u56ed.com\/<\/p>\n \u9884\u671f\u54cd\u5e94\u5934\u5305\u542bHTTP\/2 200\u3002<\/p>\n \u6d4b\u8bd5\u573a\u666f4：\u9a8c\u8bc1HSTS<\/p>\n curl<\/span> -I<\/span> https:\/\/www.xian\u679c\u56ed.com\/<\/p>\n \u9884\u671f\u54cd\u5e94\u5934\u5305\u542b：<\/p>\n strict-transport-security: max-age=63072000; includeSubDomains<\/p>\n \u6d4b\u8bd5\u573a\u666f5：SSL Labs\u626b\u63cf<\/p>\n \u8bbf\u95ee https:\/\/www.ssllabs.com\/ssltest\/，\u8f93\u5165\u57df\u540d\u8fdb\u884c\u626b\u63cf\u3002<\/p>\n \u9884\u671f\u7ed3\u679c：<\/p>\n \u6253\u5f00src\/http\/modules\/ngx_http_ssl_module.c，\u67e5\u770bSSL\u914d\u7f6e\u6307\u4ee4\u7684\u6ce8\u518c：<\/p>\n static<\/span> ngx_command_t<\/span> ngx_http_ssl_commands[<\/span>]<\/span> =<\/span> {<\/span><\/p>\n {<\/span> ngx_string<\/span>(<\/span>"ssl"<\/span>)<\/span>,<\/span> {<\/span> ngx_string<\/span>(<\/span>"ssl_certificate"<\/span>)<\/span>,<\/span> {<\/span> ngx_string<\/span>(<\/span>"ssl_protocols"<\/span>)<\/span>,<\/span> \/* … \u66f4\u591a\u6307\u4ee4 … *\/<\/span> \u8fd9\u4e9b\u6307\u4ee4\u5728\u914d\u7f6e\u89e3\u6790\u9636\u6bb5\u88ab\u6ce8\u518c，\u6700\u7ec8\u8f6c\u6362\u4e3aOpenSSL\u7684API\u8c03\u7528\u3002<\/p>\n \u518d\u770bsrc\/event\/ngx_event_openssl.c\u4e2d\u7684SSL\u4e0a\u4e0b\u6587\u521d\u59cb\u5316：<\/p>\n ngx_int_t<\/span> \/\/ \u521d\u59cb\u5316OpenSSL\u5e93<\/span> \/\/ \u521b\u5efaSSL\u4e0a\u4e0b\u6587<\/span> SSL_CTX_set_options<\/span>(<\/span>ctx,<\/span> SSL_OP_NO_SSLv2)<\/span>;<\/span> if<\/span> (<\/span>!<\/span>(<\/span>protocols &<\/span> NGX_SSL_TLSv1)<\/span>)<\/span> {<\/span> ssl-><\/span>ctx
\ncat<\/span> xian\u679c\u56ed.crt ca-chain.crt ><\/span> xian\u679c\u56ed.fullchain.crt<\/p>\n
\nopenssl verify -CAfile<\/span> ca-chain.crt xian\u679c\u56ed.fullchain.crt<\/p>\n
\nopenssl x509 -noout<\/span> -modulus<\/span> -in<\/span> xian\u679c\u56ed.crt |<\/span> openssl md5<\/p>\n
\nopenssl rsa -noout<\/span> -modulus<\/span> -in<\/span> xian\u679c\u56ed.key |<\/span> openssl md5<\/p>\n\u6b65\u9aa4\u4e8c：\u7f16\u5199Nginx\u914d\u7f6e\u6587\u4ef6<\/h4>\n
\nworker_processes auto;<\/p>\n
\n worker_connections 1024;
\n}<\/p>\n
\n include mime.types;
\n default_type application\/octet-stream;<\/p>\n
\n log_format ssl_log '$remote_addr – $remote_user [$time_local] '
\n '"$request" $status $body_bytes_sent '
\n '"$http_referer" "$http_user_agent" '
\n 'ssl_protocol="$ssl_protocol" ssl_cipher="$ssl_cipher" '
\n 'rt=$request_time';<\/p>\n
\n server {
\n listen 80;
\n server_name www.xian\u679c\u56ed.com xian\u679c\u56ed.com;<\/p>\n
\n # add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload" always;<\/p>\n
\n return 301 https:\/\/$host$request_uri;
\n }
\n }<\/p>\n
\n server {
\n listen 443 ssl http2;
\n server_name www.xian\u679c\u56ed.com xian\u679c\u56ed.com;
\n root \/data\/xian\u679c\u56ed\/static;
\n index index.html;<\/p>\n
\n ssl_certificate \/etc\/nginx\/ssl\/xian\u679c\u56ed.fullchain.crt;
\n ssl_certificate_key \/etc\/nginx\/ssl\/xian\u679c\u56ed.key;<\/p>\n
\n ssl_protocols TLSv1.2 TLSv1.3;<\/p>\n
\n # \u4f18\u5148\u4f7f\u7528\u652f\u6301Forward Secrecy\u7684\u5bc6\u7801\u5957\u4ef6
\n ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:
\n ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:
\n ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:
\n DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;
\n ssl_prefer_server_ciphers off; # TLS 1.3\u4e2d\u6b64\u8bbe\u7f6e\u65e0\u6548，\u4ea4\u7531\u5ba2\u6237\u7aef\u4f18\u5148\u9009\u62e9<\/p>\n
\n ssl_ecdh_curve X25519:secp384r1:secp256r1;<\/p>\n
\n ssl_session_cache shared:SSL:50m; # 50MB\u5171\u4eab\u7f13\u5b58，\u7ea6\u53ef\u5b58200\u4e07\u4e2a\u4f1a\u8bdd
\n ssl_session_timeout 1d; # \u4f1a\u8bdd\u6709\u6548\u671f1\u5929
\n ssl_session_tickets on; # \u542f\u7528Session Tickets<\/p>\n
\n ssl_stapling on;
\n ssl_stapling_verify on;<\/p>\n
\n resolver 8.8.8.8 8.8.4.4 valid=300s;
\n resolver_timeout 5s;<\/p>\n
\n # \u90e8\u5206CA\u63d0\u4f9b\u7684\u8bc1\u4e66\u5df2\u5185\u5d4cSCT，\u65e0\u9700\u989d\u5916\u914d\u7f6e
\n # \u5982\u9700\u624b\u52a8\u6dfb\u52a0：ssl_ct_static_scts \/path\/to\/scts;<\/p>\n
\n # HSTS：\u5f3a\u5236\u6d4f\u89c8\u5668\u5728\u672a\u6765\u4e00\u6bb5\u65f6\u95f4\u5185\u53ea\u7528HTTPS\u8bbf\u95ee
\n add_header Strict-Transport-Security "max-age=63072000; includeSubDomains" always;<\/p>\n
\n add_header X-Frame-Options "SAMEORIGIN" always;<\/p>\n
\n add_header X-XSS-Protection "1; mode=block" always;<\/p>\n
\n add_header X-Content-Type-Options "nosniff" always;<\/p>\n
\n add_header Referrer-Policy "strict-origin-when-cross-origin" always;<\/p>\n
\n try_files $uri $uri\/ \/index.html;
\n }<\/p>\n
\n proxy_pass http:\/\/127.0.0.1:8080;
\n proxy_set_header Host $host;
\n proxy_set_header X-Real-IP $remote_addr;
\n proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
\n proxy_set_header X-Forwarded-Proto $scheme;
\n }<\/p>\n
\n access_log off;
\n return 200 "Nginx SSL is running\\\\n";
\n add_header Content-Type text\/plain;
\n }
\n }
\n}<\/p>\n\u6b65\u9aa4\u4e09：\u8bed\u6cd5\u68c0\u67e5\u4e0e\u91cd\u8f7d<\/h4>\n
\n\/usr\/local\/nginx\/sbin\/nginx -s<\/span> reload<\/p>\n\u6b65\u9aa4\u56db：\u9a8c\u8bc1\u6d4b\u8bd5<\/h4>\n
\nopenssl s_client -connect<\/span> www.xian\u679c\u56ed.com:443 -tls1_3<\/span><\/p>\n
\n# Protocol : TLSv1.3<\/span>
\n# Cipher : TLS_AES_256_GCM_SHA384<\/span><\/p>\n
\nopenssl s_client -connect<\/span> www.xian\u679c\u56ed.com:443 -tls1_2<\/span><\/p>\n
\nopenssl s_client -connect<\/span> www.xian\u679c\u56ed.com:443 -tls1_1<\/span>
\n# \u9884\u671f：\u63e1\u624b\u5931\u8d25<\/span><\/p>\n\n
\u6b65\u9aa4\u4e94：\u6e90\u7801\u7ea7\u7406\u89e3<\/h4>\n
\n NGX_HTTP_MAIN_CONF|<\/span>NGX_HTTP_SRV_CONF|<\/span>NGX_CONF_FLAG,<\/span>
\n ngx_conf_set_flag_slot,<\/span>
\n NGX_HTTP_SRV_CONF_OFFSET,<\/span>
\n offsetof<\/span>(<\/span>ngx_http_ssl_srv_conf_t<\/span>,<\/span> enable)<\/span>,<\/span>
\n NULL<\/span> }<\/span>,<\/span><\/p>\n
\n NGX_HTTP_MAIN_CONF|<\/span>NGX_HTTP_SRV_CONF|<\/span>NGX_CONF_TAKE1,<\/span>
\n ngx_http_ssl_certificate,<\/span>
\n NGX_HTTP_SRV_CONF_OFFSET,<\/span>
\n 0<\/span>,<\/span>
\n NULL<\/span> }<\/span>,<\/span><\/p>\n
\n NGX_HTTP_MAIN_CONF|<\/span>NGX_HTTP_SRV_CONF|<\/span>NGX_CONF_1MORE,<\/span>
\n ngx_conf_set_bitmask_slot,<\/span>
\n NGX_HTTP_SRV_CONF_OFFSET,<\/span>
\n offsetof<\/span>(<\/span>ngx_http_ssl_srv_conf_t<\/span>,<\/span> protocols)<\/span>,<\/span>
\n &<\/span>ngx_http_ssl_protocols }<\/span>,<\/span><\/p>\n
\n}<\/span>;<\/span><\/p>\n
\nngx_ssl_create<\/span>(<\/span>ngx_ssl_t<\/span> *<\/span>ssl,<\/span> ngx_uint_t<\/span> protocols,<\/span> void<\/span> *<\/span>data)<\/span>
\n{<\/span>
\n SSL_CTX *<\/span>ctx;<\/span><\/p>\n
\n ngx_ssl_init<\/span>(<\/span>ssl-><\/span>log)<\/span>;<\/span><\/p>\n
\n ctx =<\/span> SSL_CTX_new<\/span>(<\/span>SSLv23_method<\/span>(<\/span>)<\/span>)<\/span>;<\/span>
\n if<\/span> (<\/span>ctx ==<\/span> NULL<\/span>)<\/span> {<\/span>
\n ngx_ssl_error<\/span>(<\/span>NGX_LOG_EMERG,<\/span> ssl-><\/span>log,<\/span> 0<\/span>,<\/span>
\n "SSL_CTX_new() failed"<\/span>)<\/span>;<\/span>
\n return<\/span> NGX_ERROR;<\/span>
\n }<\/span><\/p>\n
\n SSL_CTX_set_options<\/span>(<\/span>ctx,<\/span> SSL_OP_NO_SSLv3)<\/span>;<\/span><\/p>\n
\n SSL_CTX_set_options<\/span>(<\/span>ctx,<\/span> SSL_OP_NO_TLSv1)<\/span>;<\/span>
\n }<\/span>
\n if<\/span> (<\/span>!<\/span>(<\/span>protocols &<\/span> NGX_SSL_TLSv1_1)<\/span>)<\/span> {<\/span>
\n SSL_CTX_set_options<\/span>(<\/span>ctx,<\/span> SSL_OP_NO_TLSv1_1)<\/span>;<\/span>
\n }<\/span>
\n if<\/span> (<\/span>!<\/span>(<\/span>protocols &<\/span> NGX_SSL_TLSv1_2)<\/span>)<\/span> {<\/span>
\n SSL_CTX_set_options<\/span>(<\/span>ctx,<\/span> SSL_OP_NO_TLSv1_2)<\/span>;<\/span>
\n }<\/span>
\n#<\/span>ifdef<\/span> SSL_OP_NO_TLSv1_3<\/span><\/span>
\n if<\/span> (<\/span>!<\/span>(<\/span>protocols &<\/span> NGX_SSL_TLSv1_3)<\/span>)<\/span> {<\/span>
\n SSL_CTX_set_options<\/span>(<\/span>ctx,<\/span> SSL_OP_NO_TLSv1_3)<\/span>;<\/span>
\n }<\/span>
\n#<\/span>endif<\/span><\/span><\/p>\n