升级 Vite 到 6.x

modified:   src/App.tsx
	new file:   src/__tests__/utils/extract-cert.test.ts
	new file:   src/utils/extract-cert.js
	modified:   src/version.js

package-lock.json

@@ -30,14 +30,14 @@
         "@types/react-dom": "^18.2.17",
         "@typescript-eslint/eslint-plugin": "^6.14.0",
         "@typescript-eslint/parser": "^6.14.0",
-        "@vitejs/plugin-react": "^4.2.1",
+        "@vitejs/plugin-react": "^4.7.0",
         "eslint": "^8.55.0",
         "eslint-plugin-react-hooks": "^4.6.0",
         "eslint-plugin-react-refresh": "^0.4.5",
         "jest": "^30.3.0",
         "ts-jest": "^29.4.9",
         "typescript": "^5.2.2",
-        "vite": "^5.0.8"
+        "vite": "^6.4.3"
       }
     },
     "node_modules/@babel/code-frame": {
@@ -623,9 +623,9 @@
       }
     },
     "node_modules/@esbuild/aix-ppc64": {
-      "version": "0.21.5",
+      "version": "0.25.12",
-      "resolved": "https://registry.npmmirror.com/@esbuild/aix-ppc64/-/aix-ppc64-0.21.5.tgz",
+      "resolved": "https://registry.npmmirror.com/@esbuild/aix-ppc64/-/aix-ppc64-0.25.12.tgz",
-      "integrity": "sha512-1SDgH6ZSPTlggy1yI6+Dbkiz8xzpHJEVAlF/AM1tHPLsf5STom9rwtjE4hKAF20FfXXNTFqEYXyJNWh1GiZedQ==",
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       "cpu": [
         "ppc64"
       ],
@@ -636,13 +636,13 @@
         "aix"
       ],
       "engines": {
-        "node": ">=12"
+        "node": ">=18"
       }
     },
     "node_modules/@esbuild/android-arm": {
-      "version": "0.21.5",
+      "version": "0.25.12",
-      "resolved": "https://registry.npmmirror.com/@esbuild/android-arm/-/android-arm-0.21.5.tgz",
+      "resolved": "https://registry.npmmirror.com/@esbuild/android-arm/-/android-arm-0.25.12.tgz",
-      "integrity": "sha512-vCPvzSjpPHEi1siZdlvAlsPxXl7WbOVUBBAowWug4rJHb68Ox8KualB+1ocNvT5fjv6wpkX6o/iEpbDrf68zcg==",
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       "cpu": [
         "arm"
       ],
@@ -653,13 +653,13 @@
         "android"
       ],
       "engines": {
-        "node": ">=12"
+        "node": ">=18"
       }
     },
     "node_modules/@esbuild/android-arm64": {
-      "version": "0.21.5",
+      "version": "0.25.12",
-      "resolved": "https://registry.npmmirror.com/@esbuild/android-arm64/-/android-arm64-0.21.5.tgz",
+      "resolved": "https://registry.npmmirror.com/@esbuild/android-arm64/-/android-arm64-0.25.12.tgz",
-      "integrity": "sha512-c0uX9VAUBQ7dTDCjq+wdyGLowMdtR/GoC2U5IYk/7D1H1JYC0qseD7+11iMP2mRLN9RcCMRcjC4YMclCzGwS/A==",
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       "cpu": [
         "arm64"
       ],
@@ -670,13 +670,13 @@
         "android"
       ],
       "engines": {
-        "node": ">=12"
+        "node": ">=18"
       }
     },
     "node_modules/@esbuild/android-x64": {
-      "version": "0.21.5",
+      "version": "0.25.12",
-      "resolved": "https://registry.npmmirror.com/@esbuild/android-x64/-/android-x64-0.21.5.tgz",
+      "resolved": "https://registry.npmmirror.com/@esbuild/android-x64/-/android-x64-0.25.12.tgz",
-      "integrity": "sha512-D7aPRUUNHRBwHxzxRvp856rjUHRFW1SdQATKXH2hqA0kAZb1hKmi02OpYRacl0TxIGz/ZmXWlbZgjwWYaCakTA==",
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       "cpu": [
         "x64"
       ],
@@ -687,13 +687,13 @@
         "android"
       ],
       "engines": {
-        "node": ">=12"
+        "node": ">=18"
       }
     },
     "node_modules/@esbuild/darwin-arm64": {
-      "version": "0.21.5",
+      "version": "0.25.12",
-      "resolved": "https://registry.npmmirror.com/@esbuild/darwin-arm64/-/darwin-arm64-0.21.5.tgz",
+      "resolved": "https://registry.npmmirror.com/@esbuild/darwin-arm64/-/darwin-arm64-0.25.12.tgz",
-      "integrity": "sha512-DwqXqZyuk5AiWWf3UfLiRDJ5EDd49zg6O9wclZ7kUMv2WRFr4HKjXp/5t8JZ11QbQfUS6/cRCKGwYhtNAY88kQ==",
+      "integrity": "sha512-N3zl+lxHCifgIlcMUP5016ESkeQjLj/959RxxNYIthIg+CQHInujFuXeWbWMgnTo4cp5XVHqFPmpyu9J65C1Yg==",
       "cpu": [
         "arm64"
       ],
@@ -704,13 +704,13 @@
         "darwin"
       ],
       "engines": {
-        "node": ">=12"
+        "node": ">=18"
       }
     },
     "node_modules/@esbuild/darwin-x64": {
-      "version": "0.21.5",
+      "version": "0.25.12",
-      "resolved": "https://registry.npmmirror.com/@esbuild/darwin-x64/-/darwin-x64-0.21.5.tgz",
+      "resolved": "https://registry.npmmirror.com/@esbuild/darwin-x64/-/darwin-x64-0.25.12.tgz",
-      "integrity": "sha512-se/JjF8NlmKVG4kNIuyWMV/22ZaerB+qaSi5MdrXtd6R08kvs2qCN4C09miupktDitvh8jRFflwGFBQcxZRjbw==",
+      "integrity": "sha512-HQ9ka4Kx21qHXwtlTUVbKJOAnmG1ipXhdWTmNXiPzPfWKpXqASVcWdnf2bnL73wgjNrFXAa3yYvBSd9pzfEIpA==",
       "cpu": [
         "x64"
       ],
@@ -721,13 +721,13 @@
         "darwin"
       ],
       "engines": {
-        "node": ">=12"
+        "node": ">=18"
       }
     },
     "node_modules/@esbuild/freebsd-arm64": {
-      "version": "0.21.5",
+      "version": "0.25.12",
-      "resolved": "https://registry.npmmirror.com/@esbuild/freebsd-arm64/-/freebsd-arm64-0.21.5.tgz",
+      "resolved": "https://registry.npmmirror.com/@esbuild/freebsd-arm64/-/freebsd-arm64-0.25.12.tgz",
-      "integrity": "sha512-5JcRxxRDUJLX8JXp/wcBCy3pENnCgBR9bN6JsY4OmhfUtIHe3ZW0mawA7+RDAcMLrMIZaf03NlQiX9DGyB8h4g==",
+      "integrity": "sha512-gA0Bx759+7Jve03K1S0vkOu5Lg/85dou3EseOGUes8flVOGxbhDDh/iZaoek11Y8mtyKPGF3vP8XhnkDEAmzeg==",
       "cpu": [
         "arm64"
       ],
@@ -738,13 +738,13 @@
         "freebsd"
       ],
       "engines": {
-        "node": ">=12"
+        "node": ">=18"
       }
     },
     "node_modules/@esbuild/freebsd-x64": {
-      "version": "0.21.5",
+      "version": "0.25.12",
-      "resolved": "https://registry.npmmirror.com/@esbuild/freebsd-x64/-/freebsd-x64-0.21.5.tgz",
+      "resolved": "https://registry.npmmirror.com/@esbuild/freebsd-x64/-/freebsd-x64-0.25.12.tgz",
-      "integrity": "sha512-J95kNBj1zkbMXtHVH29bBriQygMXqoVQOQYA+ISs0/2l3T9/kj42ow2mpqerRBxDJnmkUDCaQT/dfNXWX/ZZCQ==",
+      "integrity": "sha512-TGbO26Yw2xsHzxtbVFGEXBFH0FRAP7gtcPE7P5yP7wGy7cXK2oO7RyOhL5NLiqTlBh47XhmIUXuGciXEqYFfBQ==",
       "cpu": [
         "x64"
       ],
@@ -755,13 +755,13 @@
         "freebsd"
       ],
       "engines": {
-        "node": ">=12"
+        "node": ">=18"
       }
     },
     "node_modules/@esbuild/linux-arm": {
-      "version": "0.21.5",
+      "version": "0.25.12",
-      "resolved": "https://registry.npmmirror.com/@esbuild/linux-arm/-/linux-arm-0.21.5.tgz",
+      "resolved": "https://registry.npmmirror.com/@esbuild/linux-arm/-/linux-arm-0.25.12.tgz",
-      "integrity": "sha512-bPb5AHZtbeNGjCKVZ9UGqGwo8EUu4cLq68E95A53KlxAPRmUyYv2D6F0uUI65XisGOL1hBP5mTronbgo+0bFcA==",
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       "cpu": [
         "arm"
       ],
@@ -772,13 +772,13 @@
         "linux"
       ],
       "engines": {
-        "node": ">=12"
+        "node": ">=18"
       }
     },
     "node_modules/@esbuild/linux-arm64": {
-      "version": "0.21.5",
+      "version": "0.25.12",
-      "resolved": "https://registry.npmmirror.com/@esbuild/linux-arm64/-/linux-arm64-0.21.5.tgz",
+      "resolved": "https://registry.npmmirror.com/@esbuild/linux-arm64/-/linux-arm64-0.25.12.tgz",
-      "integrity": "sha512-ibKvmyYzKsBeX8d8I7MH/TMfWDXBF3db4qM6sy+7re0YXya+K1cem3on9XgdT2EQGMu4hQyZhan7TeQ8XkGp4Q==",
+      "integrity": "sha512-8bwX7a8FghIgrupcxb4aUmYDLp8pX06rGh5HqDT7bB+8Rdells6mHvrFHHW2JAOPZUbnjUpKTLg6ECyzvas2AQ==",
       "cpu": [
         "arm64"
       ],
@@ -789,13 +789,13 @@
         "linux"
       ],
       "engines": {
-        "node": ">=12"
+        "node": ">=18"
       }
     },
     "node_modules/@esbuild/linux-ia32": {
-      "version": "0.21.5",
+      "version": "0.25.12",
-      "resolved": "https://registry.npmmirror.com/@esbuild/linux-ia32/-/linux-ia32-0.21.5.tgz",
+      "resolved": "https://registry.npmmirror.com/@esbuild/linux-ia32/-/linux-ia32-0.25.12.tgz",
-      "integrity": "sha512-YvjXDqLRqPDl2dvRODYmmhz4rPeVKYvppfGYKSNGdyZkA01046pLWyRKKI3ax8fbJoK5QbxblURkwK/MWY18Tg==",
+      "integrity": "sha512-0y9KrdVnbMM2/vG8KfU0byhUN+EFCny9+8g202gYqSSVMonbsCfLjUO+rCci7pM0WBEtz+oK/PIwHkzxkyharA==",
       "cpu": [
         "ia32"
       ],
@@ -806,13 +806,13 @@
         "linux"
       ],
       "engines": {
-        "node": ">=12"
+        "node": ">=18"
       }
     },
     "node_modules/@esbuild/linux-loong64": {
-      "version": "0.21.5",
+      "version": "0.25.12",
-      "resolved": "https://registry.npmmirror.com/@esbuild/linux-loong64/-/linux-loong64-0.21.5.tgz",
+      "resolved": "https://registry.npmmirror.com/@esbuild/linux-loong64/-/linux-loong64-0.25.12.tgz",
-      "integrity": "sha512-uHf1BmMG8qEvzdrzAqg2SIG/02+4/DHB6a9Kbya0XDvwDEKCoC8ZRWI5JJvNdUjtciBGFQ5PuBlpEOXQj+JQSg==",
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       "cpu": [
         "loong64"
       ],
@@ -823,13 +823,13 @@
         "linux"
       ],
       "engines": {
-        "node": ">=12"
+        "node": ">=18"
       }
     },
     "node_modules/@esbuild/linux-mips64el": {
-      "version": "0.21.5",
+      "version": "0.25.12",
-      "resolved": "https://registry.npmmirror.com/@esbuild/linux-mips64el/-/linux-mips64el-0.21.5.tgz",
+      "resolved": "https://registry.npmmirror.com/@esbuild/linux-mips64el/-/linux-mips64el-0.25.12.tgz",
-      "integrity": "sha512-IajOmO+KJK23bj52dFSNCMsz1QP1DqM6cwLUv3W1QwyxkyIWecfafnI555fvSGqEKwjMXVLokcV5ygHW5b3Jbg==",
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       "cpu": [
         "mips64el"
       ],
@@ -840,13 +840,13 @@
         "linux"
       ],
       "engines": {
-        "node": ">=12"
+        "node": ">=18"
       }
     },
     "node_modules/@esbuild/linux-ppc64": {
-      "version": "0.21.5",
+      "version": "0.25.12",
-      "resolved": "https://registry.npmmirror.com/@esbuild/linux-ppc64/-/linux-ppc64-0.21.5.tgz",
+      "resolved": "https://registry.npmmirror.com/@esbuild/linux-ppc64/-/linux-ppc64-0.25.12.tgz",
-      "integrity": "sha512-1hHV/Z4OEfMwpLO8rp7CvlhBDnjsC3CttJXIhBi+5Aj5r+MBvy4egg7wCbe//hSsT+RvDAG7s81tAvpL2XAE4w==",
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       "cpu": [
         "ppc64"
       ],
@@ -857,13 +857,13 @@
         "linux"
       ],
       "engines": {
-        "node": ">=12"
+        "node": ">=18"
       }
     },
     "node_modules/@esbuild/linux-riscv64": {
-      "version": "0.21.5",
+      "version": "0.25.12",
-      "resolved": "https://registry.npmmirror.com/@esbuild/linux-riscv64/-/linux-riscv64-0.21.5.tgz",
+      "resolved": "https://registry.npmmirror.com/@esbuild/linux-riscv64/-/linux-riscv64-0.25.12.tgz",
-      "integrity": "sha512-2HdXDMd9GMgTGrPWnJzP2ALSokE/0O5HhTUvWIbD3YdjME8JwvSCnNGBnTThKGEB91OZhzrJ4qIIxk/SBmyDDA==",
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       "cpu": [
         "riscv64"
       ],
@@ -874,13 +874,13 @@
         "linux"
       ],
       "engines": {
-        "node": ">=12"
+        "node": ">=18"
       }
     },
     "node_modules/@esbuild/linux-s390x": {
-      "version": "0.21.5",
+      "version": "0.25.12",
-      "resolved": "https://registry.npmmirror.com/@esbuild/linux-s390x/-/linux-s390x-0.21.5.tgz",
+      "resolved": "https://registry.npmmirror.com/@esbuild/linux-s390x/-/linux-s390x-0.25.12.tgz",
-      "integrity": "sha512-zus5sxzqBJD3eXxwvjN1yQkRepANgxE9lgOW2qLnmr8ikMTphkjgXu1HR01K4FJg8h1kEEDAqDcZQtbrRnB41A==",
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       "cpu": [
         "s390x"
       ],
@@ -891,13 +891,13 @@
         "linux"
       ],
       "engines": {
-        "node": ">=12"
+        "node": ">=18"
       }
     },
     "node_modules/@esbuild/linux-x64": {
-      "version": "0.21.5",
+      "version": "0.25.12",
-      "resolved": "https://registry.npmmirror.com/@esbuild/linux-x64/-/linux-x64-0.21.5.tgz",
+      "resolved": "https://registry.npmmirror.com/@esbuild/linux-x64/-/linux-x64-0.25.12.tgz",
-      "integrity": "sha512-1rYdTpyv03iycF1+BhzrzQJCdOuAOtaqHTWJZCWvijKD2N5Xu0TtVC8/+1faWqcP9iBCWOmjmhoH94dH82BxPQ==",
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       "cpu": [
         "x64"
       ],
@@ -908,13 +908,30 @@
         "linux"
       ],
       "engines": {
-        "node": ">=12"
+        "node": ">=18"
+      }
+    },
+    "node_modules/@esbuild/netbsd-arm64": {
+      "version": "0.25.12",
+      "resolved": "https://registry.npmmirror.com/@esbuild/netbsd-arm64/-/netbsd-arm64-0.25.12.tgz",
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+      "cpu": [
+        "arm64"
+      ],
+      "dev": true,
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "netbsd"
+      ],
+      "engines": {
+        "node": ">=18"
       }
     },
     "node_modules/@esbuild/netbsd-x64": {
-      "version": "0.21.5",
+      "version": "0.25.12",
-      "resolved": "https://registry.npmmirror.com/@esbuild/netbsd-x64/-/netbsd-x64-0.21.5.tgz",
+      "resolved": "https://registry.npmmirror.com/@esbuild/netbsd-x64/-/netbsd-x64-0.25.12.tgz",
-      "integrity": "sha512-Woi2MXzXjMULccIwMnLciyZH4nCIMpWQAs049KEeMvOcNADVxo0UBIQPfSmxB3CWKedngg7sWZdLvLczpe0tLg==",
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       "cpu": [
         "x64"
       ],
@@ -925,13 +942,30 @@
         "netbsd"
       ],
       "engines": {
-        "node": ">=12"
+        "node": ">=18"
+      }
+    },
+    "node_modules/@esbuild/openbsd-arm64": {
+      "version": "0.25.12",
+      "resolved": "https://registry.npmmirror.com/@esbuild/openbsd-arm64/-/openbsd-arm64-0.25.12.tgz",
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+      "cpu": [
+        "arm64"
+      ],
+      "dev": true,
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "openbsd"
+      ],
+      "engines": {
+        "node": ">=18"
       }
     },
     "node_modules/@esbuild/openbsd-x64": {
-      "version": "0.21.5",
+      "version": "0.25.12",
-      "resolved": "https://registry.npmmirror.com/@esbuild/openbsd-x64/-/openbsd-x64-0.21.5.tgz",
+      "resolved": "https://registry.npmmirror.com/@esbuild/openbsd-x64/-/openbsd-x64-0.25.12.tgz",
-      "integrity": "sha512-HLNNw99xsvx12lFBUwoT8EVCsSvRNDVxNpjZ7bPn947b8gJPzeHWyNVhFsaerc0n3TsbOINvRP2byTZ5LKezow==",
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       "cpu": [
         "x64"
       ],
@@ -942,13 +976,30 @@
         "openbsd"
       ],
       "engines": {
-        "node": ">=12"
+        "node": ">=18"
+      }
+    },
+    "node_modules/@esbuild/openharmony-arm64": {
+      "version": "0.25.12",
+      "resolved": "https://registry.npmmirror.com/@esbuild/openharmony-arm64/-/openharmony-arm64-0.25.12.tgz",
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+      "cpu": [
+        "arm64"
+      ],
+      "dev": true,
+      "license": "MIT",
+      "optional": true,
+      "os": [
+        "openharmony"
+      ],
+      "engines": {
+        "node": ">=18"
       }
     },
     "node_modules/@esbuild/sunos-x64": {
-      "version": "0.21.5",
+      "version": "0.25.12",
-      "resolved": "https://registry.npmmirror.com/@esbuild/sunos-x64/-/sunos-x64-0.21.5.tgz",
+      "resolved": "https://registry.npmmirror.com/@esbuild/sunos-x64/-/sunos-x64-0.25.12.tgz",
-      "integrity": "sha512-6+gjmFpfy0BHU5Tpptkuh8+uw3mnrvgs+dSPQXQOv3ekbordwnzTVEb4qnIvQcYXq6gzkyTnoZ9dZG+D4garKg==",
+      "integrity": "sha512-3wGSCDyuTHQUzt0nV7bocDy72r2lI33QL3gkDNGkod22EsYl04sMf0qLb8luNKTOmgF/eDEDP5BFNwoBKH441w==",
       "cpu": [
         "x64"
       ],
@@ -959,13 +1010,13 @@
         "sunos"
       ],
       "engines": {
-        "node": ">=12"
+        "node": ">=18"
       }
     },
     "node_modules/@esbuild/win32-arm64": {
-      "version": "0.21.5",
+      "version": "0.25.12",
-      "resolved": "https://registry.npmmirror.com/@esbuild/win32-arm64/-/win32-arm64-0.21.5.tgz",
+      "resolved": "https://registry.npmmirror.com/@esbuild/win32-arm64/-/win32-arm64-0.25.12.tgz",
-      "integrity": "sha512-Z0gOTd75VvXqyq7nsl93zwahcTROgqvuAcYDUr+vOv8uHhNSKROyU961kgtCD1e95IqPKSQKH7tBTslnS3tA8A==",
+      "integrity": "sha512-rMmLrur64A7+DKlnSuwqUdRKyd3UE7oPJZmnljqEptesKM8wx9J8gx5u0+9Pq0fQQW8vqeKebwNXdfOyP+8Bsg==",
       "cpu": [
         "arm64"
       ],
@@ -976,13 +1027,13 @@
         "win32"
       ],
       "engines": {
-        "node": ">=12"
+        "node": ">=18"
       }
     },
     "node_modules/@esbuild/win32-ia32": {
-      "version": "0.21.5",
+      "version": "0.25.12",
-      "resolved": "https://registry.npmmirror.com/@esbuild/win32-ia32/-/win32-ia32-0.21.5.tgz",
+      "resolved": "https://registry.npmmirror.com/@esbuild/win32-ia32/-/win32-ia32-0.25.12.tgz",
-      "integrity": "sha512-SWXFF1CL2RVNMaVs+BBClwtfZSvDgtL//G/smwAc5oVK/UPu2Gu9tIaRgFmYFFKrmg3SyAjSrElf0TiJ1v8fYA==",
+      "integrity": "sha512-HkqnmmBoCbCwxUKKNPBixiWDGCpQGVsrQfJoVGYLPT41XWF8lHuE5N6WhVia2n4o5QK5M4tYr21827fNhi4byQ==",
       "cpu": [
         "ia32"
       ],
@@ -993,13 +1044,13 @@
         "win32"
       ],
       "engines": {
-        "node": ">=12"
+        "node": ">=18"
       }
     },
     "node_modules/@esbuild/win32-x64": {
-      "version": "0.21.5",
+      "version": "0.25.12",
-      "resolved": "https://registry.npmmirror.com/@esbuild/win32-x64/-/win32-x64-0.21.5.tgz",
+      "resolved": "https://registry.npmmirror.com/@esbuild/win32-x64/-/win32-x64-0.25.12.tgz",
-      "integrity": "sha512-tQd/1efJuzPC6rCFwEvLtci/xNFcTZknmXs98FYDfGE4wP9ClFV98nyKrzJKVPMhdDnjzLhdUyMX4PsQAPjwIw==",
+      "integrity": "sha512-alJC0uCZpTFrSL0CCDjcgleBXPnCrEAhTBILpeAp7M/OFgoqtAetfBzX0xM00MUsVVPpVjlPuMbREqnZCXaTnA==",
       "cpu": [
         "x64"
       ],
@@ -1010,7 +1061,7 @@
         "win32"
       ],
       "engines": {
-        "node": ">=12"
+        "node": ">=18"
       }
     },
     "node_modules/@eslint-community/eslint-utils": {
@@ -4055,9 +4106,9 @@
       }
     },
     "node_modules/esbuild": {
-      "version": "0.21.5",
+      "version": "0.25.12",
-      "resolved": "https://registry.npmmirror.com/esbuild/-/esbuild-0.21.5.tgz",
+      "resolved": "https://registry.npmmirror.com/esbuild/-/esbuild-0.25.12.tgz",
-      "integrity": "sha512-mg3OPMV4hXywwpoDxu3Qda5xCKQi+vCTZq8S9J/EpkhB2HzKXq4SNFZE3+NK93JYxc8VMSep+lOUSC/RVKaBqw==",
+      "integrity": "sha512-bbPBYYrtZbkt6Os6FiTLCTFxvq4tt3JKall1vRwshA3fdVztsLAatFaZobhkBC8/BrPetoa0oksYoKXoG4ryJg==",
       "dev": true,
       "hasInstallScript": true,
       "license": "MIT",
@@ -4065,32 +4116,35 @@
         "esbuild": "bin/esbuild"
       },
       "engines": {
-        "node": ">=12"
+        "node": ">=18"
       },
       "optionalDependencies": {
-        "@esbuild/aix-ppc64": "0.21.5",
+        "@esbuild/aix-ppc64": "0.25.12",
-        "@esbuild/android-arm": "0.21.5",
+        "@esbuild/android-arm": "0.25.12",
-        "@esbuild/android-arm64": "0.21.5",
+        "@esbuild/android-arm64": "0.25.12",
-        "@esbuild/android-x64": "0.21.5",
+        "@esbuild/android-x64": "0.25.12",
-        "@esbuild/darwin-arm64": "0.21.5",
+        "@esbuild/darwin-arm64": "0.25.12",
-        "@esbuild/darwin-x64": "0.21.5",
+        "@esbuild/darwin-x64": "0.25.12",
-        "@esbuild/freebsd-arm64": "0.21.5",
+        "@esbuild/freebsd-arm64": "0.25.12",
-        "@esbuild/freebsd-x64": "0.21.5",
+        "@esbuild/freebsd-x64": "0.25.12",
-        "@esbuild/linux-arm": "0.21.5",
+        "@esbuild/linux-arm": "0.25.12",
-        "@esbuild/linux-arm64": "0.21.5",
+        "@esbuild/linux-arm64": "0.25.12",
-        "@esbuild/linux-ia32": "0.21.5",
+        "@esbuild/linux-ia32": "0.25.12",
-        "@esbuild/linux-loong64": "0.21.5",
+        "@esbuild/linux-loong64": "0.25.12",
-        "@esbuild/linux-mips64el": "0.21.5",
+        "@esbuild/linux-mips64el": "0.25.12",
-        "@esbuild/linux-ppc64": "0.21.5",
+        "@esbuild/linux-ppc64": "0.25.12",
-        "@esbuild/linux-riscv64": "0.21.5",
+        "@esbuild/linux-riscv64": "0.25.12",
-        "@esbuild/linux-s390x": "0.21.5",
+        "@esbuild/linux-s390x": "0.25.12",
-        "@esbuild/linux-x64": "0.21.5",
+        "@esbuild/linux-x64": "0.25.12",
-        "@esbuild/netbsd-x64": "0.21.5",
+        "@esbuild/netbsd-arm64": "0.25.12",
-        "@esbuild/openbsd-x64": "0.21.5",
+        "@esbuild/netbsd-x64": "0.25.12",
-        "@esbuild/sunos-x64": "0.21.5",
+        "@esbuild/openbsd-arm64": "0.25.12",
-        "@esbuild/win32-arm64": "0.21.5",
+        "@esbuild/openbsd-x64": "0.25.12",
-        "@esbuild/win32-ia32": "0.21.5",
+        "@esbuild/openharmony-arm64": "0.25.12",
-        "@esbuild/win32-x64": "0.21.5"
+        "@esbuild/sunos-x64": "0.25.12",
+        "@esbuild/win32-arm64": "0.25.12",
+        "@esbuild/win32-ia32": "0.25.12",
+        "@esbuild/win32-x64": "0.25.12"
       }
     },
     "node_modules/escalade": {
@@ -7599,6 +7653,54 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/tinyglobby": {
+      "version": "0.2.17",
+      "resolved": "https://registry.npmmirror.com/tinyglobby/-/tinyglobby-0.2.17.tgz",
+      "integrity": "sha512-wXR/dYpcqKmfWpEdZjiKJOwCNFndD0DMnrW/cYjVGttEkBfVgcLFHoNrlj47mjOVic9yyNu65alsgF4NQyTa2g==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "fdir": "^6.5.0",
+        "picomatch": "^4.0.4"
+      },
+      "engines": {
+        "node": ">=12.0.0"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/SuperchupuDev"
+      }
+    },
+    "node_modules/tinyglobby/node_modules/fdir": {
+      "version": "6.5.0",
+      "resolved": "https://registry.npmmirror.com/fdir/-/fdir-6.5.0.tgz",
+      "integrity": "sha512-tIbYtZbucOs0BRGqPJkshJUYdL+SDH7dVM8gjy+ERp3WAUjLEFJE+02kanyHtwjWOnwrKYBiwAmM0p4kLJAnXg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=12.0.0"
+      },
+      "peerDependencies": {
+        "picomatch": "^3 || ^4"
+      },
+      "peerDependenciesMeta": {
+        "picomatch": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/tinyglobby/node_modules/picomatch": {
+      "version": "4.0.5",
+      "resolved": "https://registry.npmmirror.com/picomatch/-/picomatch-4.0.5.tgz",
+      "integrity": "sha512-RvwwcruNjI1ncT5xRakeyS9Lf8lcItv34KD+aif+VH9kduAyfYBipGh12274xtenIPZ119/R9BdTBa8gAwSh0A==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/jonschlinkert"
+      }
+    },
     "node_modules/tmpl": {
       "version": "1.0.5",
       "resolved": "https://registry.npmmirror.com/tmpl/-/tmpl-1.0.5.tgz",
@@ -7912,21 +8014,24 @@
       }
     },
     "node_modules/vite": {
-      "version": "5.4.21",
+      "version": "6.4.3",
-      "resolved": "https://registry.npmmirror.com/vite/-/vite-5.4.21.tgz",
+      "resolved": "https://registry.npmmirror.com/vite/-/vite-6.4.3.tgz",
-      "integrity": "sha512-o5a9xKjbtuhY6Bi5S3+HvbRERmouabWbyUcpXXUA1u+GNUKoROi9byOJ8M0nHbHYHkYICiMlqxkg1KkYmm25Sw==",
+      "integrity": "sha512-NTKlcQjlAK7MlQoyb6LgaqHc8sso/pVyUJYWMws3jg21uTJw/LddqIFPcPqP6PzpgbIcZyKI85sFE4HBrQDA8A==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "esbuild": "^0.21.3",
+        "esbuild": "^0.25.0",
-        "postcss": "^8.4.43",
+        "fdir": "^6.4.4",
-        "rollup": "^4.20.0"
+        "picomatch": "^4.0.2",
+        "postcss": "^8.5.3",
+        "rollup": "^4.34.9",
+        "tinyglobby": "^0.2.13"
       },
       "bin": {
         "vite": "bin/vite.js"
       },
       "engines": {
-        "node": "^18.0.0 || >=20.0.0"
+        "node": "^18.0.0 || ^20.0.0 || >=22.0.0"
       },
       "funding": {
         "url": "https://github.com/vitejs/vite?sponsor=1"
@@ -7935,19 +8040,25 @@
         "fsevents": "~2.3.3"
       },
       "peerDependencies": {
-        "@types/node": "^18.0.0 || >=20.0.0",
+        "@types/node": "^18.0.0 || ^20.0.0 || >=22.0.0",
+        "jiti": ">=1.21.0",
         "less": "*",
         "lightningcss": "^1.21.0",
         "sass": "*",
         "sass-embedded": "*",
         "stylus": "*",
         "sugarss": "*",
-        "terser": "^5.4.0"
+        "terser": "^5.16.0",
+        "tsx": "^4.8.1",
+        "yaml": "^2.4.2"
       },
       "peerDependenciesMeta": {
         "@types/node": {
           "optional": true
         },
+        "jiti": {
+          "optional": true
+        },
         "less": {
           "optional": true
         },
@@ -7968,9 +8079,46 @@
         },
         "terser": {
           "optional": true
+        },
+        "tsx": {
+          "optional": true
+        },
+        "yaml": {
+          "optional": true
         }
       }
     },
+    "node_modules/vite/node_modules/fdir": {
+      "version": "6.5.0",
+      "resolved": "https://registry.npmmirror.com/fdir/-/fdir-6.5.0.tgz",
+      "integrity": "sha512-tIbYtZbucOs0BRGqPJkshJUYdL+SDH7dVM8gjy+ERp3WAUjLEFJE+02kanyHtwjWOnwrKYBiwAmM0p4kLJAnXg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=12.0.0"
+      },
+      "peerDependencies": {
+        "picomatch": "^3 || ^4"
+      },
+      "peerDependenciesMeta": {
+        "picomatch": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/vite/node_modules/picomatch": {
+      "version": "4.0.5",
+      "resolved": "https://registry.npmmirror.com/picomatch/-/picomatch-4.0.5.tgz",
+      "integrity": "sha512-RvwwcruNjI1ncT5xRakeyS9Lf8lcItv34KD+aif+VH9kduAyfYBipGh12274xtenIPZ119/R9BdTBa8gAwSh0A==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/jonschlinkert"
+      }
+    },
     "node_modules/walker": {
       "version": "1.0.8",
       "resolved": "https://registry.npmmirror.com/walker/-/walker-1.0.8.tgz",

package.json

@@ -33,13 +33,13 @@
     "@types/react-dom": "^18.2.17",
     "@typescript-eslint/eslint-plugin": "^6.14.0",
     "@typescript-eslint/parser": "^6.14.0",
-    "@vitejs/plugin-react": "^4.2.1",
+    "@vitejs/plugin-react": "^4.7.0",
     "eslint": "^8.55.0",
     "eslint-plugin-react-hooks": "^4.6.0",
     "eslint-plugin-react-refresh": "^0.4.5",
     "jest": "^30.3.0",
     "ts-jest": "^29.4.9",
     "typescript": "^5.2.2",
-    "vite": "^5.0.8"
+    "vite": "^6.4.3"
   }
 }

src/App.tsx

@@ -7,6 +7,7 @@ import { sm2GenerateKeyPair, sm2GetPublicKeyFromPrivateKey, sm2Encrypt, sm2Decry
 import { parseSm2Cert, parseCertFromFile, generateRootCert, generateAppCert, generateCrlFile, loadRootPrivateKeyFromCache } from './utils/algorithm/cert'
 import { hexToUtf8, utf8ToHex, hexToBase64, base64ToHex } from './utils/convert'
 import { getInfoFromPKCS7, verifyPKCS7 } from './utils/crypto.js'
+import { extractCertificate } from './utils/extract-cert'
 
 function App() {
   // 从localStorage读取当前分类，默认sm3
@@ -189,6 +190,9 @@ function App() {
   const [pkcs7Info, setPkcs7Info] = useState<any>(null)
   const [originalData, setOriginalData] = useState<string>('')
   const [verifyResult, setVerifyResult] = useState<string>('')
+  const [extractInput, setExtractInput] = useState<string>('')
+  const [extractedCert, setExtractedCert] = useState<any>(null)
+  const [extractError, setExtractError] = useState<string>('')
 
 
 
@@ -410,6 +414,36 @@ function App() {
     }
   }
   
+  const handleExtractCertificate = () => {
+    try {
+      const result = extractCertificate(extractInput)
+      setExtractedCert(result)
+      setExtractError('')
+    } catch (error) {
+      setExtractError((error as Error).message)
+      setExtractedCert(null)
+    }
+  }
+
+  const handleDownloadExtractedCert = (type: 'der' | 'pem') => {
+    if (!extractedCert) {
+      setExtractError('请先提取证书')
+      return
+    }
+
+    const content = type === 'der' ? extractedCert.der : extractedCert.pem
+    const blob = new Blob([content], { type: type === 'der' ? 'application/octet-stream' : 'application/x-pem-file' })
+    const downloadUrl = URL.createObjectURL(blob)
+    const link = document.createElement('a')
+    link.href = downloadUrl
+    link.download = type === 'der' ? 'extracted-cert.der' : 'extracted-cert.pem'
+    document.body.appendChild(link)
+    link.click()
+    document.body.removeChild(link)
+    URL.revokeObjectURL(downloadUrl)
+    setExtractError('')
+  }
+
   // 处理 PKCS7 签名信息提取
   const handleGetInfoFromPKCS7 = () => {
     try {
@@ -1540,7 +1574,7 @@ function App() {
                     transition: 'background 0.3s ease'
                   }}
                 >
-                  Hex ← Base64
+                  Base64 → Hex
                 </button>
               </div>
               
@@ -1584,7 +1618,7 @@ function App() {
                     transition: 'background 0.3s ease'
                   }}
                 >
-                  Hex ← Base64
+                  Base64 ← Hex
                 </button>
               </div>
             </div>
@@ -1853,8 +1887,8 @@ function App() {
           </div>
           
           {/* 生成 CRL 文件 */}
-          <div style={{ backgroundColor: '#2d2d2d', padding: '15px', borderRadius: '8px', marginBottom: '20px' }}>
+          <div style={{ backgroundColor: '#2d2d2d', padding: '18px', borderRadius: '8px', marginBottom: '18px' }}>
-            <h3 style={{ color: '#f59e0b', marginBottom: '15px' }}>3. 生成 CRL 文件</h3>
+            <h3 style={{ color: '#f59e0b', marginBottom: '12px', fontSize: '18px' }}>3. 生成 CRL 文件</h3>
             <div className="form-group" style={{ marginBottom: '15px' }}>
               <label style={{ display: 'block', marginBottom: '5px', color: '#e0e0e0' }}>证书 id：</label>
               <textarea 
@@ -1899,9 +1933,89 @@ function App() {
             </button>
           </div>
           
+          {/* 提取证书 */}
+          <div style={{ backgroundColor: '#2d2d2d', padding: '18px', borderRadius: '8px', marginBottom: '18px' }}>
+            <h3 style={{ color: '#f59e0b', marginBottom: '12px', fontSize: '18px' }}>4. 提取证书</h3>
+            <div className="form-group" style={{ marginBottom: '15px' }}>
+              <label style={{ display: 'block', marginBottom: '5px', color: '#e0e0e0' }}>输入内容（DER / HEX / PEM / CMS）</label>
+              <textarea 
+                value={extractInput} 
+                onChange={(e) => setExtractInput(e.target.value)}
+                onContextMenu={(e) => openMenu(e, extractInput, setExtractInput, false)}
+                onTouchStart={(e) => {
+                  const touchTimer = setTimeout(() => {
+                    openMenu(e, extractInput, setExtractInput, false)
+                  }, 500)
+                  return () => clearTimeout(touchTimer)
+                }}
+                placeholder="可直接粘贴证书 DER/HEX/PEM 或 PKCS#7/CMS 数据" 
+                style={{
+                  width: '100%',
+                  padding: '10px',
+                  border: '1px solid #333',
+                  borderRadius: '4px',
+                  backgroundColor: '#3d3d3d',
+                  color: '#e0e0e0',
+                  fontSize: '14px',
+                  resize: 'vertical',
+                  minHeight: '140px'
+                }}
+              />
+            </div>
+            <button 
+              onClick={handleExtractCertificate}
+              style={{
+                padding: '10px 20px',
+                border: 'none',
+                borderRadius: '4px',
+                background: '#f59e0b',
+                color: '#121212',
+                fontSize: '16px',
+                fontWeight: 'bold',
+                cursor: 'pointer',
+                transition: 'background 0.3s ease'
+              }}
+            >
+              提取证书
+            </button>
+            {extractError && (
+              <div style={{ marginTop: '10px', color: '#fca5a5' }}>{extractError}</div>
+            )}
+            {extractedCert && (
+              <div style={{ marginTop: '15px', backgroundColor: '#3d3d3d', padding: '15px', borderRadius: '8px' }}>
+                <h4 style={{ color: '#f59e0b', marginBottom: '10px' }}>提取结果</h4>
+                <div style={{ marginBottom: '10px', color: '#e0e0e0' }}>
+                  <span style={{ fontWeight: 'bold' }}>来源:</span> {extractedCert.via}
+                </div>
+                <div style={{ marginBottom: '10px', color: '#e0e0e0' }}>
+                  <span style={{ fontWeight: 'bold' }}>长度:</span> {extractedCert.length} bytes
+                </div>
+                <textarea 
+                  value={extractedCert.pem} 
+                  readOnly
+                  style={{
+                    width: '100%',
+                    padding: '10px',
+                    border: '1px solid #333',
+                    borderRadius: '4px',
+                    backgroundColor: '#2d2d2d',
+                    color: '#e0e0e0',
+                    fontSize: '14px',
+                    resize: 'vertical',
+                    minHeight: '160px'
+                  }}
+                />
+                <div style={{ display: 'flex', gap: '10px', marginTop: '10px', flexWrap: 'wrap' }}>
+                  <button onClick={() => handleDownloadExtractedCert('der')} style={{ padding: '10px 16px', border: 'none', borderRadius: '4px', background: '#f59e0b', color: '#121212', fontWeight: 'bold', cursor: 'pointer' }}>下载 DER</button>
+                  <button onClick={() => handleDownloadExtractedCert('pem')} style={{ padding: '10px 16px', border: 'none', borderRadius: '4px', background: '#f59e0b', color: '#121212', fontWeight: 'bold', cursor: 'pointer' }}>下载 PEM</button>
+                </div>
+              </div>
+            )}
+          </div>
+
           {/* 证书解析 */}
-          <div style={{ backgroundColor: '#2d2d2d', padding: '15px', borderRadius: '8px' }}>
+          <div style={{ backgroundColor: '#2d2d2d', padding: '18px', borderRadius: '8px', marginBottom: '18px' }}>
-            <h3 style={{ color: '#f59e0b', marginBottom: '15px' }}>4. 证书解析</h3>
+            <h3 style={{ color: '#f59e0b', marginBottom: '12px', fontSize: '18px' }}>5. 证书解析</h3>
             <div className="form-group" style={{ marginBottom: '20px' }}>
               <label style={{ display: 'block', marginBottom: '10px', color: '#e0e0e0' }}>上传证书文件</label>
               <div style={{ position: 'relative', display: 'inline-block', width: '100%' }}>
@@ -1999,8 +2113,8 @@ function App() {
           </div>
           
           {/* PKCS7 签名工具 */}
-          <div style={{ backgroundColor: '#2d2d2d', padding: '15px', borderRadius: '8px', marginTop: '20px' }}>
+          <div style={{ backgroundColor: '#2d2d2d', padding: '18px', borderRadius: '8px' }}>
-            <h3 style={{ color: '#f59e0b', marginBottom: '15px' }}>5. PKCS7 签名工具</h3>
+            <h3 style={{ color: '#f59e0b', marginBottom: '12px', fontSize: '18px' }}>6. PKCS7 签名工具</h3>
             
             <div className="form-group" style={{ marginBottom: '15px' }}>
               <label style={{ display: 'block', marginBottom: '5px', color: '#e0e0e0' }}>PKCS7 签名数据</label>

src/__tests__/utils/extract-cert.test.ts

@@ -0,0 +1,23 @@
+import { extractCertificate } from '../../utils/extract-cert'
+
+describe('extractCertificate', () => {
+  it('extracts a DER-like certificate sequence from raw bytes', () => {
+    const certBody = new Uint8Array(120)
+    certBody[0] = 0x02
+    certBody[1] = 0x01
+    certBody[2] = 0x01
+    const der = new Uint8Array(130)
+    der[0] = 0x30
+    der[1] = 0x78
+    der[2] = 0x02
+    der[3] = 0x01
+    der[4] = 0x01
+    der.set(certBody, 5)
+
+    const result = extractCertificate(der)
+
+    expect(result.via).toBe('direct certificate')
+    expect(result.pem).toContain('BEGIN CERTIFICATE')
+    expect(result.der.length).toBeGreaterThan(0)
+  })
+})

src/utils/extract-cert.d.ts

@@ -0,0 +1,11 @@
+export interface ExtractedCertificate {
+  der: Uint8Array
+  pem: string
+  hex: string
+  via: string
+  start: number
+  end: number
+  length: number
+}
+
+export function extractCertificate(input: string | ArrayBuffer | ArrayBufferView | Uint8Array): ExtractedCertificate

src/utils/extract-cert.js

@@ -0,0 +1 @@
+export { extractCertificate, extractCertificateFromText } from './extract-cert.ts'

src/utils/extract-cert.ts

@@ -0,0 +1,237 @@
+/**
+ * 从 PKCS#7/CMS ContentInfo (DER) 中抽取内含的 X.509 证书。
+ *
+ * 可在浏览器和 Node 环境中使用。
+ * 支持输入:
+ *   (a) CMS ContentInfo { OID, [0] EXPLICIT SEQUENCE(SignedData) }
+ *   (b) 直接是一张 X.509 证书 DER
+ *   (c) 其他 ASN.1 结构中嵌套证书 (fallback 全文扫描)
+ */
+
+interface TLV {
+  tag: number
+  headerLen: number
+  contentLen: number
+  totalLen: number
+  contentStart: number
+  contentEnd: number
+}
+
+interface LocatedCertificate {
+  range: { start: number; end: number }
+  via: string
+}
+
+export interface ExtractedCertificate {
+  der: Uint8Array
+  pem: string
+  hex: string
+  via: string
+  start: number
+  end: number
+  length: number
+}
+
+function toByteArray(input: string | ArrayBuffer | ArrayBufferView | Uint8Array | null | undefined): Uint8Array | null {
+  if (input == null) return null
+
+  if (input instanceof Uint8Array) return input
+  if (ArrayBuffer.isView(input)) return new Uint8Array(input.buffer, input.byteOffset, input.byteLength)
+  if (input instanceof ArrayBuffer) return new Uint8Array(input)
+
+  if (typeof input === 'string') {
+    const trimmed = input.trim()
+    if (!trimmed) return new Uint8Array(0)
+
+    if (/^-----BEGIN/.test(trimmed)) {
+      const base64Body = trimmed
+        .replace(/-----BEGIN CERTIFICATE-----/i, '')
+        .replace(/-----END CERTIFICATE-----/i, '')
+        .replace(/\s+/g, '')
+      return base64ToBytes(base64Body)
+    }
+
+    if (/^[0-9a-fA-F\s]+$/.test(trimmed)) {
+      return hexToBytes(trimmed)
+    }
+
+    return new TextEncoder().encode(trimmed)
+  }
+
+  return null
+}
+
+function base64ToBytes(value: string): Uint8Array {
+  if (typeof window !== 'undefined' && typeof window.atob === 'function') {
+    const binary = window.atob(value)
+    const bytes = new Uint8Array(binary.length)
+    for (let i = 0; i < binary.length; i++) bytes[i] = binary.charCodeAt(i)
+    return bytes
+  }
+
+  if (typeof Buffer !== 'undefined') {
+    return new Uint8Array(Buffer.from(value, 'base64'))
+  }
+
+  return new Uint8Array([])
+}
+
+function hexToBytes(value: string): Uint8Array {
+  const cleaned = value.replace(/\s+/g, '')
+  const bytes = new Uint8Array(cleaned.length / 2)
+  for (let i = 0; i < cleaned.length; i += 2) {
+    const chunk = cleaned.slice(i, i + 2)
+    if (!chunk) continue
+    bytes[i / 2] = Number.parseInt(chunk, 16)
+  }
+  return bytes
+}
+
+function bytesToHex(bytes: Uint8Array): string {
+  let out = ''
+  for (const byte of bytes) out += byte.toString(16).padStart(2, '0')
+  return out
+}
+
+function readTLV(buf: Uint8Array, offset: number): TLV | null {
+  if (offset >= buf.length) return null
+  const tag = buf[offset++]
+  if ((tag & 0x1f) === 0x1f) return null
+  let len = buf[offset++]
+  let headerLen = 2
+  if (len & 0x80) {
+    const n = len & 0x7f
+    if (n === 0 || offset + n > buf.length) return null
+    len = 0
+    for (let i = 0; i < n; i++) len = (len << 8) | buf[offset++]
+    headerLen = 2 + n
+  }
+  if (offset + len > buf.length) return null
+  return { tag, headerLen, contentLen: len, totalLen: headerLen + len, contentStart: offset, contentEnd: offset + len }
+}
+
+function readChildren(buf: Uint8Array, start: number, end: number): TLV[] {
+  const out: TLV[] = []
+  let pos = start
+  while (pos < end) {
+    const tlv = readTLV(buf, pos)
+    if (!tlv || tlv.totalLen <= 0) break
+    out.push(tlv)
+    pos += tlv.totalLen
+  }
+  return out
+}
+
+function looksLikeCertificate(buf: Uint8Array, tlv: TLV): boolean {
+  if (tlv.tag !== 0x30) return false
+  if (tlv.contentLen < 100 || tlv.contentLen > 8192) return false
+  const first = buf[tlv.contentStart]
+  if (first === 0x02) return true
+  if (first === 0xa0) {
+    const wrap = readTLV(buf, tlv.contentStart)
+    if (!wrap || wrap.tag !== 0xa0) return false
+    const inner = readTLV(buf, wrap.contentStart)
+    return !!(inner && inner.tag === 0x02)
+  }
+  return false
+}
+
+function findCertificateSEQUENCE(buf: Uint8Array): LocatedCertificate | null {
+  for (let i = 0; i < buf.length - 4; i++) {
+    if (buf[i] !== 0x30) continue
+    const tlv = readTLV(buf, i)
+    if (tlv && looksLikeCertificate(buf, tlv)) {
+      return { range: { start: i, end: i + tlv.totalLen }, via: 'fallback scan' }
+    }
+  }
+  return null
+}
+
+function pickCertInCertificatesField(buf: Uint8Array, start: number, end: number): LocatedCertificate | null {
+  if (end - start > 4 && buf[start] === 0x30) {
+    const wrap = readTLV(buf, start)
+    if (wrap && wrap.tag === 0x30 && wrap.totalLen === (end - start)) {
+      const items = readChildren(buf, wrap.contentStart, wrap.contentEnd)
+      if (items.length > 0 && looksLikeCertificate(buf, items[0])) {
+        return { range: { start: items[0].contentStart - items[0].headerLen, end: items[0].contentEnd }, via: 'CMS ContentInfo' }
+      }
+    }
+  }
+  for (const c of readChildren(buf, start, end)) {
+    if (looksLikeCertificate(buf, c)) {
+      return { range: { start: c.contentStart - c.headerLen, end: c.contentEnd }, via: 'CMS ContentInfo' }
+    }
+  }
+  return null
+}
+
+function findCertViaCMS(buf: Uint8Array): LocatedCertificate | null {
+  const top = readTLV(buf, 0)
+  if (!top || top.tag !== 0x30 || top.contentLen < 8) return null
+  const topChildren = readChildren(buf, top.contentStart, top.contentEnd)
+  if (topChildren.length < 2) return null
+  const wrap0 = topChildren[1]
+  if (wrap0.tag !== 0xa0) return null
+  const sdTLV = readTLV(buf, wrap0.contentStart)
+  if (!sdTLV || sdTLV.tag !== 0x30) return null
+  const sdChildren = readChildren(buf, sdTLV.contentStart, sdTLV.contentEnd)
+  if (sdChildren.length < 4) return null
+  const certsField = sdChildren[3]
+  if (certsField.tag !== 0xa0) return null
+  return pickCertInCertificatesField(buf, certsField.contentStart, certsField.contentEnd)
+}
+
+function locateCertificate(buf: Uint8Array): LocatedCertificate | null {
+  const tlv = readTLV(buf, 0)
+  if (tlv && tlv.tag === 0x30 && looksLikeCertificate(buf, tlv)) {
+    return { range: { start: 0, end: tlv.totalLen }, via: 'direct certificate' }
+  }
+  const cms = findCertViaCMS(buf)
+  if (cms) return cms
+  return findCertificateSEQUENCE(buf)
+}
+
+function bytesToBase64(bytes: Uint8Array): string {
+  const binary = Array.from(bytes, (byte) => String.fromCharCode(byte)).join('')
+  if (typeof window !== 'undefined' && typeof window.btoa === 'function') {
+    return window.btoa(binary)
+  }
+  if (typeof Buffer !== 'undefined') {
+    return Buffer.from(bytes).toString('base64')
+  }
+  return ''
+}
+
+function toPEM(der: Uint8Array): string {
+  const b64 = bytesToBase64(der)
+  const lines = b64.match(/.{1,64}/g)?.join('\n') || b64
+  return '-----BEGIN CERTIFICATE-----\n' + lines + '\n-----END CERTIFICATE-----\n'
+}
+
+export function extractCertificate(input: string | ArrayBuffer | ArrayBufferView | Uint8Array | null | undefined): ExtractedCertificate {
+  const buf = toByteArray(input)
+  if (!buf) {
+    throw new Error('unsupported input type')
+  }
+
+  const located = locateCertificate(buf)
+  if (!located) {
+    throw new Error('no X.509 certificate SEQUENCE found')
+  }
+
+  const { range, via } = located
+  const der = buf.subarray(range.start, range.end)
+  return {
+    der,
+    pem: toPEM(der),
+    hex: bytesToHex(der),
+    via,
+    start: range.start,
+    end: range.end,
+    length: der.length,
+  }
+}
+
+export function extractCertificateFromText(input: string | ArrayBuffer | ArrayBufferView | Uint8Array | null | undefined): ExtractedCertificate {
+  return extractCertificate(input)
+}

src/version.js

@@ -1 +1 @@
-export const VERSION = "V1.0-20260428031400"
+export const VERSION = "V1.0-20260824025705";