{"id":118,"date":"2026-02-11T20:18:22","date_gmt":"2026-02-11T12:18:22","guid":{"rendered":"https:\/\/blog.qianlinjiaxi.qzz.io\/?p=118"},"modified":"2026-02-11T20:37:33","modified_gmt":"2026-02-11T12:37:33","slug":"%e9%98%bf%e9%87%8c%e4%ba%91%e7%bd%91%e5%85%b3dpi%e9%98%bb%e6%96%ad%e7%bb%95%e8%bf%87%e6%bc%8f%e6%b4%9e%e5%88%86%e6%9e%90%e6%8a%a5%e5%91%8a%ef%bc%88tls-client-hello%e5%88%86%e7%89%87%e9%80%83%e9%80%b8","status":"publish","type":"post","link":"https:\/\/blog.qianlinjiaxi.qzz.io\/?p=118","title":{"rendered":"\u963f\u91cc\u4e91\u7f51\u5173DPI\u963b\u65ad\u7ed5\u8fc7\u6f0f\u6d1e\u5206\u6790\u62a5\u544a\uff08TLS Client Hello\u5206\u7247\u9003\u9038\uff09"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>\u62a5\u544a\u7f16\u53f7\uff1a<\/strong> ALI-GW-2026-0211<br><strong>\u53d1\u73b0\u65e5\u671f\uff1a<\/strong> 2026-02-11<br><strong>\u76ee\u6807\u8d44\u4ea7\uff1a<\/strong> \uff08\u672a\u5907\u6848\u57df\u540d\uff09\u2192 \uff08\u963f\u91cc\u4e91\uff09<br><strong>\u6f0f\u6d1e\u7c7b\u578b\uff1a<\/strong> DPI\u6df1\u5ea6\u5305\u68c0\u6d4b\u9003\u9038 \/ Fail-Open\u8bbe\u8ba1\u7f3a\u9677<br><strong>\u5a01\u80c1\u7b49\u7ea7\uff1a<\/strong> <strong>\u9ad8\u5371<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">1. \u6f0f\u6d1e\u6982\u8ff0<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u963f\u91cc\u4e91\u7f51\u5173\u9488\u5bf9\u672a\u5907\u6848\u57df\u540d\u7684HTTPS\u8bbf\u95ee\u5b9e\u65bdSNI\u963b\u65ad\u7b56\u7565\uff0c\u4f46\u5176\u6df1\u5ea6\u5305\u68c0\u6d4b\uff08DPI\uff09\u5f15\u64ce\u5728\u5904\u7406<strong>\u5206\u7247\u7684TLS Client Hello\u62a5\u6587<\/strong>\u65f6\u5b58\u5728\u4e25\u91cd\u903b\u8f91\u7f3a\u9677\u3002\u5f53Client Hello\u56e0\u643a\u5e26\u540e\u91cf\u5b50\u5bc6\u7801\uff08PQC\uff09\u6269\u5c55\u800c\u8d85\u8fc7\u4ee5\u592a\u7f51MTU\uff081500\u5b57\u8282\uff09\u65f6\uff0c\u5c06\u88abTCP\u81ea\u7136\u5206\u7247\u4f20\u8f93\u3002\u6b64\u65f6DPI\u5f15\u64ce\u65e0\u6cd5\u5b8c\u6210TCP\u6d41\u91cd\u7ec4\u6216\u89e3\u6790\u8d85\u65f6\uff0c\u5bfc\u81f4\u7b56\u7565\u51b3\u7b56<strong>\u5931\u8d25\u5373\u653e\u884c\uff08Fail-Open\uff09<\/strong>\uff0c\u4ece\u800c\u5b8c\u5168\u7ed5\u8fc7\u963b\u65ad\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u5f53\u524d\u6240\u6709\u4e3b\u6d41\u6d4f\u89c8\u5668\u53ca\u65b0\u7248\u7f51\u7edc\u5de5\u5177\uff08\u9ed8\u8ba4\u542f\u7528PQC\uff09\u5747\u53ef\u65e0\u969c\u788d\u8bbf\u95ee\u672a\u5907\u6848\u57df\u540d\uff0c\u76d1\u7ba1\u7b56\u7565\u5f62\u540c\u865a\u8bbe\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2. \u80cc\u666f\u4e0e\u53d7\u5f71\u54cd\u8303\u56f4<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">2.1 \u963b\u65ad\u673a\u5236\u7b80\u8ff0<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u963f\u91cc\u4e91\u7f51\u5173\u5bf9\u76ee\u7684IP\u4e3a\u5176\u4e91\u8d44\u6e90\u7684HTTPS\u6d41\u91cf\uff0c\u4f1a\u89e3\u6790TLS\u63e1\u624b\u9636\u6bb5\u7684Client Hello\u62a5\u6587\uff0c\u63d0\u53d6SNI\uff08Server Name Indication\uff09\u5b57\u6bb5\uff0c\u5e76\u4e0e\u5907\u6848\u767d\u540d\u5355\u6bd4\u5bf9\u3002\u82e5\u57df\u540d\u672a\u5907\u6848\uff0c\u5219\u76f4\u63a5\u56de\u590dTCP RST\u4e2d\u65ad\u8fde\u63a5\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.2 \u5f71\u54cd\u8303\u56f4<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6240\u6709\u542f\u7528PQC\uff08X25519MLKEM768\uff09\u7684TLS 1.3\u5ba2\u6237\u7aef<\/strong>\uff0c\u5305\u62ec\uff1a<\/li>\n\n\n\n<li>Chrome 124+ \/ Firefox 124+\uff08\u9ed8\u8ba4\u542f\u7528\uff09<\/li>\n\n\n\n<li>curl 8.6.0+\uff08--tls13-ciphers \u542bPQC\u5957\u4ef6\uff09<\/li>\n\n\n\n<li>\u5176\u4ed6\u57fa\u4e8eBoringSSL\u3001NSS\u3001OpenSSL 3.2+\u5e76\u542f\u7528PQC\u7684\u8f6f\u4ef6<\/li>\n\n\n\n<li><strong>\u53d7\u5f71\u54cd\u5730\u57df<\/strong>\uff1a\u7591\u4f3c\u963f\u91cc\u4e91\u5168\u7f51\u7f51\u5173\uff0c\u975e\u7279\u5b9a\u533a\u57df\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u4e0d\u53d7\u5f71\u54cd\u7684\u5ba2\u6237\u7aef<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7981\u7528PQC\u7684\u5ba2\u6237\u7aef\uff08\u5982<code>--curves X25519<\/code>\uff09<\/li>\n\n\n\n<li>\u7eafTLS 1.2\u53ca\u4ee5\u4e0b\u3001\u4e0d\u652f\u6301key_share\u6269\u5c55\u7684\u65e7\u7248\u5ba2\u6237\u7aef<\/li>\n\n\n\n<li>\u4f7f\u7528Windows Schannel\uff08\u9ed8\u8ba4\u65e0PQC\uff09\u7684IE\/Edge\uff08\u65e7\u7248\uff09<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">3. \u6280\u672f\u5206\u6790<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">3.1 \u6839\u672c\u539f\u56e0\uff1aDPI\u5f15\u64ce\u672a\u5b9e\u73b0TCP\u6d41\u91cd\u7ec4<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u963f\u91cc\u4e91\u7f51\u5173\u7684DPI\u6a21\u5757\u4ec5\u68c0\u6d4b<strong>\u6bcf\u4e2aTCP\u8fde\u63a5\u7684\u7b2c\u4e00\u4e2a\u6570\u636e\u5305<\/strong>\uff0c\u5e76\u5047\u8bbe\u8be5\u5305\u5305\u542b\u5b8c\u6574\u7684TLS Record\u3002\u5bf9\u4e8e\u8d85\u8fc7MTU\u7684Client Hello\uff0c\u534f\u8bae\u6808\u4f1a\u5c06\u5176\u62c6\u5206\u4e3a\u591a\u4e2aTCP\u6bb5\u53d1\u9001\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7b2c1\u4e2aTCP\u6bb5\uff1aTLS Record\u5934 + \u90e8\u5206\u6269\u5c55\uff08\u901a\u5e38\u5305\u542bSNI\uff09<\/li>\n\n\n\n<li>\u540e\u7eedTCP\u6bb5\uff1a\u5269\u4f59\u6269\u5c55\uff08\u542bPQC\u516c\u94a5\u7b49\uff09<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">DPI\u5f15\u64ce\u5728\u4ec5\u6536\u5230\u7b2c\u4e00\u4e2aTCP\u6bb5\u65f6\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6839\u636eTLS Record Length\u5b57\u6bb5\u53d1\u73b0\u6570\u636e\u4e0d\u5b8c\u6574\uff08\u5982\u957f\u5ea61900\uff0c\u5df2\u65361400\uff09<\/li>\n\n\n\n<li>\u672a\u6267\u884c\u6d41\u91cd\u7ec4\uff08Reassembly\uff09\u4ee5\u7b49\u5f85\u540e\u7eed\u5206\u6bb5<\/li>\n\n\n\n<li>\u76f4\u63a5\u5224\u5b9a\u4e3a\u201c\u4e0d\u53ef\u89e3\u6790\u201d\u6216\u201c\u8d85\u65f6\u201d\uff0c\u89e6\u53d1<strong>Fail-Open<\/strong>\u7b56\u7565\u2014\u2014\u653e\u884c\u8be5\u8fde\u63a5<\/li>\n<\/ol>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>\u7ed3\u8bba<\/strong>\uff1a\u53ea\u8981Client Hello\u5927\u5c0f &gt; MSS\uff08\u901a\u5e381460\uff09\uff0c\u89e6\u53d1TCP\u5206\u6bb5\uff0c\u5373\u53ef\u65e0\u6761\u4ef6\u7ed5\u8fc7\u963b\u65ad\u3002<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">3.2 \u89e6\u53d1\u6761\u4ef6\u91cf\u5316<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5ba2\u6237\u7aef\u914d\u7f6e<\/th><th>TLS\u7248\u672c<\/th><th>KeyShare\u6269\u5c55<\/th><th>\u5305\u5927\u5c0f<\/th><th>TCP\u5206\u6bb5<\/th><th>\u7ed3\u679c<\/th><\/tr><\/thead><tbody><tr><td>Chrome 134 (\u9ed8\u8ba4)<\/td><td>1.3<\/td><td>X25519MLKEM768<\/td><td>~1900<\/td><td>\u2705<\/td><td>\u7ed5\u8fc7<\/td><\/tr><tr><td>Firefox 135 (\u9ed8\u8ba4)<\/td><td>1.3<\/td><td>X25519MLKEM768<\/td><td>~1900<\/td><td>\u2705<\/td><td>\u7ed5\u8fc7<\/td><\/tr><tr><td>curl 8.11.0 (\u9ed8\u8ba4)<\/td><td>1.3<\/td><td>X25519MLKEM768<\/td><td>~1800<\/td><td>\u2705<\/td><td>\u7ed5\u8fc7<\/td><\/tr><tr><td>curl 8.11.0 (<code>--curves X25519<\/code>)<\/td><td>1.3<\/td><td>X25519<\/td><td>~300<\/td><td>\u274c<\/td><td>\u62e6\u622a<\/td><\/tr><tr><td>curl (\u4f2a\u88c5TLS 1.2 + PQC)<\/td><td>1.2<\/td><td>X25519MLKEM768<\/td><td>~2400<\/td><td>\u2705<\/td><td>\u7ed5\u8fc7<\/td><\/tr><tr><td>Firefox (\u5f3a\u5236TLS 1.2)<\/td><td>1.2<\/td><td>\u65e0<\/td><td>~180<\/td><td>\u274c<\/td><td>\u62e6\u622a<\/td><\/tr><tr><td>Windows 11 + Edge (\u65e7\u7248)<\/td><td>1.2<\/td><td>\u65e0<\/td><td>~450<\/td><td>\u274c<\/td><td>\u62e6\u622a<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">\u8868\u683c\u6570\u636e\u6765\u6e90\u4e8e https\/\/2x.nz\/posts\/aliyun-icp-tls-bug<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5173\u952e\u8bc1\u636e<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5206\u7247\u5fc5\u7ed5\u8fc7<\/strong>\uff1a\u6240\u6709\u89e6\u53d1TCP\u5206\u7247\u7684\u8bf7\u6c42\u5747\u6210\u529f\u83b7\u5f97200 OK\uff0c\u672a\u89e6\u53d1RST\u3002<\/li>\n\n\n\n<li><strong>\u4e0d\u5206\u7247\u5fc5\u62e6\u622a<\/strong>\uff1a\u4efb\u4f55\u5c3a\u5bf8&lt;1460\u4e14\u5b8c\u6574\u7684Client Hello\u5747\u7acb\u5373\u88abRST\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tip\uff1a\u963f\u91cc\u4e91\u4f5c\u4e3a\u56fd\u5185\u91cd\u8981\u7684\u4e91\u670d\u52a1\u63d0\u4f9b\u5546\uff0c\u8fd9\u79cd\u95ee\u9898\u4e5f\u5c5e\u5b9e\u662f\u597d\u7b11\u4e86\uff08yyyyt\u4e5f\u63d0\u5230gfw\u66fe\u4e5f\u72af\u8fc7\u8fd9\u6837\u7684\u95ee\u9898<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u62a5\u544a\u7f16\u53f7\uff1a ALI-GW-2026-0211\u53d1\u73b0\u65e5\u671f\uff1a 2026-02-11\u76ee\u6807\u8d44\u4ea7\uff1a \uff08\u672a\u5907\u6848\u57df\u540d\uff09\u2192 \uff08\u963f &hellip; <a href=\"https:\/\/blog.qianlinjiaxi.qzz.io\/?p=118\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">\u963f\u91cc\u4e91\u7f51\u5173DPI\u963b\u65ad\u7ed5\u8fc7\u6f0f\u6d1e\u5206\u6790\u62a5\u544a\uff08TLS Client Hello\u5206\u7247\u9003\u9038\uff09<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"class_list":["post-118","post","type-post","status-publish","format-standard","hentry","category-14"],"_links":{"self":[{"href":"https:\/\/blog.qianlinjiaxi.qzz.io\/index.php?rest_route=\/wp\/v2\/posts\/118","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.qianlinjiaxi.qzz.io\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.qianlinjiaxi.qzz.io\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.qianlinjiaxi.qzz.io\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.qianlinjiaxi.qzz.io\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=118"}],"version-history":[{"count":2,"href":"https:\/\/blog.qianlinjiaxi.qzz.io\/index.php?rest_route=\/wp\/v2\/posts\/118\/revisions"}],"predecessor-version":[{"id":120,"href":"https:\/\/blog.qianlinjiaxi.qzz.io\/index.php?rest_route=\/wp\/v2\/posts\/118\/revisions\/120"}],"wp:attachment":[{"href":"https:\/\/blog.qianlinjiaxi.qzz.io\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=118"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.qianlinjiaxi.qzz.io\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=118"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.qianlinjiaxi.qzz.io\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=118"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}