diff --git a/.gitignore b/.gitignore
index 2d7beb1..e190a0a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -40,4 +40,7 @@ out
 
 # Temporary files
 *.tmp
-*.temp
\ No newline at end of file
+*.temp
+
+
+certs
\ No newline at end of file
diff --git a/src/App.tsx b/src/App.tsx
index 5b5082a..27b989c 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -4,7 +4,7 @@ import { VERSION } from './version'
 import { sm3Digest, sm3Hmac } from './utils/algorithm/sm3'
 import { sm4Encrypt, sm4Decrypt } from './utils/algorithm/sm4'
 import { sm2GenerateKeyPair, sm2GetPublicKeyFromPrivateKey, sm2Encrypt, sm2Decrypt, sm2Sign, sm2Verify } from './utils/algorithm/sm2'
-import { parseSm2Cert, parseCertFromFile } from './utils/algorithm/cert'
+import { parseSm2Cert, parseCertFromFile, generateRootCert, generateAppCert } from './utils/algorithm/cert'
 import { hexToUtf8, utf8ToHex, hexToBase64, base64ToHex } from './utils/convert'
 
 function App() {
@@ -175,6 +175,10 @@ function App() {
   
   // 证书工具状态
   const [certInfo, setCertInfo] = useState<any>(null)
+  const [rootCert, setRootCert] = useState<string>('')
+  const [appCert, setAppCert] = useState<string>('')
+  const [commonName, setCommonName] = useState<string>('test.example.com')
+  const [certError, setCertError] = useState<string>('')
 
 
 
@@ -292,6 +296,28 @@ function App() {
     }
   }
   
+  // 处理生成根证书
+  const handleGenerateRootCert = () => {
+    try {
+      const cert = generateRootCert()
+      setRootCert(cert)
+      setCertError('')
+    } catch (error) {
+      setCertError((error as Error).message)
+    }
+  }
+  
+  // 处理生成应用证书
+  const handleGenerateAppCert = () => {
+    try {
+      const cert = generateAppCert(commonName)
+      setAppCert(cert)
+      setCertError('')
+    } catch (error) {
+      setCertError((error as Error).message)
+    }
+  }
+  
   // SM2 生成密钥对
   const handleGenerateSm2KeyPair = () => {
     try {
@@ -1450,102 +1476,233 @@ function App() {
       {/* 证书工具面板 */}
       {activeTab === 'cert' && (
         <div className="panel" style={{ backgroundColor: '#1e1e1e', padding: '20px', borderRadius: '8px', boxShadow: '0 2px 4px rgba(0, 0, 0, 0.3)' }}>
-          <h2 style={{ color: '#f59e0b', marginBottom: '20px' }}>RSA 证书解析</h2>
+          <h2 style={{ color: '#f59e0b', marginBottom: '20px' }}>证书工具</h2>
           
-          <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%' }}>
-              <input 
-                type="file" 
-                accept=".cer,.crt,.pem" 
-                onChange={handleCertFileUpload}
-                style={{
-                  position: 'absolute',
-                  opacity: 0,
-                  width: '100%',
-                  height: '100%',
-                  cursor: 'pointer'
-                }}
-              />
-              <div style={{
-                padding: '12px 20px',
-                border: '1px solid #333',
-                borderRadius: '4px',
-                backgroundColor: '#2d2d2d',
-                color: '#f59e0b',
-                fontSize: '16px',
-                fontWeight: 'bold',
-                textAlign: 'center',
-                cursor: 'pointer',
-                transition: 'background 0.3s ease'
-              }}>
-                选择证书文件
-              </div>
-            </div>
-            <div style={{ marginTop: '10px', color: '#888', fontSize: '14px' }}>
-              支持 .cer, .crt, .pem 格式
-            </div>
-          </div>
-          
-          {certInfo && (
-            <div style={{ backgroundColor: '#2d2d2d', padding: '15px', borderRadius: '8px', marginTop: '20px' }}>
-              <h3 style={{ color: '#f59e0b', marginBottom: '15px' }}>证书信息</h3>
-              
-              <div style={{ marginBottom: '10px' }}>
-                <label style={{ display: 'block', marginBottom: '5px', color: '#e0e0e0', fontWeight: 'bold' }}>版本:</label>
-                <div style={{ color: '#e0e0e0' }}>{certInfo.version}</div>
-              </div>
-              
-              <div style={{ marginBottom: '10px' }}>
-                <label style={{ display: 'block', marginBottom: '5px', color: '#e0e0e0', fontWeight: 'bold' }}>序列号:</label>
-                <div style={{ color: '#e0e0e0', wordBreak: 'break-all' }}>{certInfo.serialNumber}</div>
-              </div>
-              
-              <div style={{ marginBottom: '10px' }}>
-                <label style={{ display: 'block', marginBottom: '5px', color: '#e0e0e0', fontWeight: 'bold' }}>所有者:</label>
-                <div style={{ color: '#e0e0e0' }}>
-                  {Object.entries(certInfo.subject).map(([key, value]) => (
-                    <div key={key}>{key}: {String(value)}</div>
-                  ))}
-                </div>
-              </div>
-              
-              <div style={{ marginBottom: '10px' }}>
-                <label style={{ display: 'block', marginBottom: '5px', color: '#e0e0e0', fontWeight: 'bold' }}>签发者:</label>
-                <div style={{ color: '#e0e0e0' }}>
-                  {Object.entries(certInfo.issuer).map(([key, value]) => (
-                    <div key={key}>{key}: {String(value)}</div>
-                  ))}
-                </div>
-              </div>
-              
-              <div style={{ marginBottom: '10px' }}>
-                <label style={{ display: 'block', marginBottom: '5px', color: '#e0e0e0', fontWeight: 'bold' }}>有效期:</label>
-                <div style={{ color: '#e0e0e0' }}>
-                  <div>开始: {certInfo.notBefore}</div>
-                  <div>结束: {certInfo.notAfter}</div>
-                </div>
-              </div>
-              
-              <div style={{ marginBottom: '10px' }}>
-                <label style={{ display: 'block', marginBottom: '5px', color: '#e0e0e0', fontWeight: 'bold' }}>公钥:</label>
-                <div style={{ color: '#e0e0e0', wordBreak: 'break-all' }}>{certInfo.publicKey}</div>
-              </div>
-              
-              <div style={{ marginBottom: '10px' }}>
-                <label style={{ display: 'block', marginBottom: '5px', color: '#e0e0e0', fontWeight: 'bold' }}>用途:</label>
-                <div style={{ color: '#e0e0e0' }}>
-                  {certInfo.keyUsage.length > 0 ? (
-                    certInfo.keyUsage.map((usage: string, index: number) => (
-                      <div key={index}>{usage}</div>
-                    ))
-                  ) : (
-                    <div>无</div>
-                  )}
-                </div>
-              </div>
+          {certError && (
+            <div style={{ backgroundColor: '#7f1d1d', padding: '10px', borderRadius: '4px', marginBottom: '20px', color: '#fecaca' }}>
+              {certError}
             </div>
           )}
+          
+          {/* 生成根证书 */}
+          <div style={{ backgroundColor: '#2d2d2d', padding: '15px', borderRadius: '8px', marginBottom: '20px' }}>
+            <h3 style={{ color: '#f59e0b', marginBottom: '15px' }}>1. 生成根证书</h3>
+            <button 
+              onClick={handleGenerateRootCert}
+              style={{
+                padding: '10px 20px',
+                border: 'none',
+                borderRadius: '4px',
+                background: '#f59e0b',
+                color: '#121212',
+                fontSize: '16px',
+                fontWeight: 'bold',
+                cursor: 'pointer',
+                transition: 'background 0.3s ease'
+              }}
+            >
+              生成根证书
+            </button>
+            {rootCert && (
+              <div style={{ marginTop: '15px' }}>
+                <h4 style={{ color: '#e0e0e0', marginBottom: '10px' }}>根证书内容：</h4>
+                <textarea 
+                  value={rootCert} 
+                  readOnly
+                  onContextMenu={(e) => openMenu(e, rootCert, setRootCert, true)}
+                  onTouchStart={(e) => {
+                    const touchTimer = setTimeout(() => {
+                      openMenu(e, rootCert, setRootCert, true)
+                    }, 500)
+                    return () => clearTimeout(touchTimer)
+                  }}
+                  style={{
+                    width: '100%',
+                    padding: '10px',
+                    border: '1px solid #333',
+                    borderRadius: '4px',
+                    backgroundColor: '#3d3d3d',
+                    color: '#e0e0e0',
+                    fontSize: '14px',
+                    resize: 'vertical',
+                    minHeight: '150px'
+                  }}
+                />
+              </div>
+            )}
+          </div>
+          
+          {/* 生成应用证书 */}
+          <div style={{ backgroundColor: '#2d2d2d', padding: '15px', borderRadius: '8px', marginBottom: '20px' }}>
+            <h3 style={{ color: '#f59e0b', marginBottom: '15px' }}>2. 生成应用证书</h3>
+            <div className="form-group" style={{ marginBottom: '15px' }}>
+              <label style={{ display: 'block', marginBottom: '5px', color: '#e0e0e0' }}>通用名称：</label>
+              <input 
+                type="text" 
+                value={commonName} 
+                onChange={(e) => setCommonName(e.target.value)}
+                onContextMenu={(e) => openMenu(e, commonName, setCommonName, false)}
+                onTouchStart={(e) => {
+                  const touchTimer = setTimeout(() => {
+                    openMenu(e, commonName, setCommonName, false)
+                  }, 500)
+                  return () => clearTimeout(touchTimer)
+                }}
+                placeholder="输入应用证书的通用名称" 
+                style={{
+                  width: '100%',
+                  padding: '10px',
+                  border: '1px solid #333',
+                  borderRadius: '4px',
+                  backgroundColor: '#3d3d3d',
+                  color: '#e0e0e0',
+                  fontSize: '14px'
+                }}
+              />
+            </div>
+            <button 
+              onClick={handleGenerateAppCert}
+              style={{
+                padding: '10px 20px',
+                border: 'none',
+                borderRadius: '4px',
+                background: '#f59e0b',
+                color: '#121212',
+                fontSize: '16px',
+                fontWeight: 'bold',
+                cursor: 'pointer',
+                transition: 'background 0.3s ease'
+              }}
+            >
+              生成应用证书
+            </button>
+            {appCert && (
+              <div style={{ marginTop: '15px' }}>
+                <h4 style={{ color: '#e0e0e0', marginBottom: '10px' }}>应用证书内容：</h4>
+                <textarea 
+                  value={appCert} 
+                  readOnly
+                  onContextMenu={(e) => openMenu(e, appCert, setAppCert, true)}
+                  onTouchStart={(e) => {
+                    const touchTimer = setTimeout(() => {
+                      openMenu(e, appCert, setAppCert, true)
+                    }, 500)
+                    return () => clearTimeout(touchTimer)
+                  }}
+                  style={{
+                    width: '100%',
+                    padding: '10px',
+                    border: '1px solid #333',
+                    borderRadius: '4px',
+                    backgroundColor: '#3d3d3d',
+                    color: '#e0e0e0',
+                    fontSize: '14px',
+                    resize: 'vertical',
+                    minHeight: '150px'
+                  }}
+                />
+              </div>
+            )}
+          </div>
+          
+          {/* 证书解析 */}
+          <div style={{ backgroundColor: '#2d2d2d', padding: '15px', borderRadius: '8px' }}>
+            <h3 style={{ color: '#f59e0b', marginBottom: '15px' }}>3. 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%' }}>
+                <input 
+                  type="file" 
+                  accept=".cer,.crt,.pem" 
+                  onChange={handleCertFileUpload}
+                  style={{
+                    position: 'absolute',
+                    opacity: 0,
+                    width: '100%',
+                    height: '100%',
+                    cursor: 'pointer'
+                  }}
+                />
+                <div style={{
+                  padding: '12px 20px',
+                  border: '1px solid #333',
+                  borderRadius: '4px',
+                  backgroundColor: '#3d3d3d',
+                  color: '#f59e0b',
+                  fontSize: '16px',
+                  fontWeight: 'bold',
+                  textAlign: 'center',
+                  cursor: 'pointer',
+                  transition: 'background 0.3s ease'
+                }}>
+                  选择证书文件
+                </div>
+              </div>
+              <div style={{ marginTop: '10px', color: '#888', fontSize: '14px' }}>
+                支持 .cer, .crt, .pem 格式
+              </div>
+            </div>
+            
+            {certInfo && (
+              <div style={{ backgroundColor: '#3d3d3d', padding: '15px', borderRadius: '8px', marginTop: '20px' }}>
+                <h4 style={{ color: '#f59e0b', marginBottom: '15px' }}>证书信息</h4>
+                
+                <div style={{ marginBottom: '10px' }}>
+                  <label style={{ display: 'block', marginBottom: '5px', color: '#e0e0e0', fontWeight: 'bold' }}>版本:</label>
+                  <div style={{ color: '#e0e0e0' }}>{certInfo.version}</div>
+                </div>
+                
+                <div style={{ marginBottom: '10px' }}>
+                  <label style={{ display: 'block', marginBottom: '5px', color: '#e0e0e0', fontWeight: 'bold' }}>序列号:</label>
+                  <div style={{ color: '#e0e0e0', wordBreak: 'break-all' }}>{certInfo.serialNumber}</div>
+                </div>
+                
+                <div style={{ marginBottom: '10px' }}>
+                  <label style={{ display: 'block', marginBottom: '5px', color: '#e0e0e0', fontWeight: 'bold' }}>所有者:</label>
+                  <div style={{ color: '#e0e0e0' }}>
+                    {Object.entries(certInfo.subject).map(([key, value]) => (
+                      <div key={key}>{key}: {String(value)}</div>
+                    ))}
+                  </div>
+                </div>
+                
+                <div style={{ marginBottom: '10px' }}>
+                  <label style={{ display: 'block', marginBottom: '5px', color: '#e0e0e0', fontWeight: 'bold' }}>签发者:</label>
+                  <div style={{ color: '#e0e0e0' }}>
+                    {Object.entries(certInfo.issuer).map(([key, value]) => (
+                      <div key={key}>{key}: {String(value)}</div>
+                    ))}
+                  </div>
+                </div>
+                
+                <div style={{ marginBottom: '10px' }}>
+                  <label style={{ display: 'block', marginBottom: '5px', color: '#e0e0e0', fontWeight: 'bold' }}>有效期:</label>
+                  <div style={{ color: '#e0e0e0' }}>
+                    <div>开始: {certInfo.notBefore}</div>
+                    <div>结束: {certInfo.notAfter}</div>
+                  </div>
+                </div>
+                
+                <div style={{ marginBottom: '10px' }}>
+                  <label style={{ display: 'block', marginBottom: '5px', color: '#e0e0e0', fontWeight: 'bold' }}>公钥:</label>
+                  <div style={{ color: '#e0e0e0', wordBreak: 'break-all' }}>{certInfo.publicKey}</div>
+                </div>
+                
+                <div style={{ marginBottom: '10px' }}>
+                  <label style={{ display: 'block', marginBottom: '5px', color: '#e0e0e0', fontWeight: 'bold' }}>用途:</label>
+                  <div style={{ color: '#e0e0e0' }}>
+                    {certInfo.keyUsage.length > 0 ? (
+                      certInfo.keyUsage.map((usage: string, index: number) => (
+                        <div key={index}>{usage}</div>
+                      ))
+                    ) : (
+                      <div>无</div>
+                    )}
+                  </div>
+                </div>
+              </div>
+            )}
+          </div>
         </div>
       )}
       
diff --git a/src/utils/algorithm/cert.ts b/src/utils/algorithm/cert.ts
index c3b7a7d..ba4fcac 100644
--- a/src/utils/algorithm/cert.ts
+++ b/src/utils/algorithm/cert.ts
@@ -10,6 +10,214 @@ const arrayBufferToBase64 = (buffer: ArrayBuffer): string => {
   return btoa(binary)
 }
 
+
+
+// 生成随机的序列号
+const generateSerialNumber = (): string => {
+  return Math.floor(Math.random() * Number.MAX_SAFE_INTEGER).toString()
+}
+
+// 获取本地缓存目录路径
+const getCacheDirectory = (): string => {
+  if (typeof window !== 'undefined') {
+    // 浏览器环境
+    return 'localStorage'
+  } else {
+    // Node.js环境
+    return './cache'
+  }
+}
+
+// 保存根证书到本地缓存
+const saveRootCertToCache = (certPem: string): void => {
+  if (typeof window !== 'undefined') {
+    // 浏览器环境：使用localStorage
+    localStorage.setItem('rootCert', certPem)
+  } else {
+    // Node.js环境：使用文件系统
+    const fs = require('fs')
+    const path = require('path')
+    const cacheDir = getCacheDirectory()
+    
+    // 确保缓存目录存在
+    if (!fs.existsSync(cacheDir)) {
+      fs.mkdirSync(cacheDir, { recursive: true })
+    }
+    
+    // 保存证书到文件
+    const certPath = path.join(cacheDir, 'rootCert.pem')
+    fs.writeFileSync(certPath, certPem)
+  }
+}
+
+// 从本地缓存读取根证书
+const loadRootCertFromCache = (): string | null => {
+  if (typeof window !== 'undefined') {
+    // 浏览器环境：从localStorage读取
+    return localStorage.getItem('rootCert')
+  } else {
+    // Node.js环境：从文件系统读取
+    const fs = require('fs')
+    const path = require('path')
+    const cacheDir = getCacheDirectory()
+    const certPath = path.join(cacheDir, 'rootCert.pem')
+    
+    if (fs.existsSync(certPath)) {
+      return fs.readFileSync(certPath, 'utf8')
+    }
+    return null
+  }
+}
+
+// 生成根证书
+export const generateRootCert = (): string => {
+  try {
+    // 生成密钥对
+    const keys = forge.pki.rsa.generateKeyPair(2048)
+    
+    // 创建证书
+    const cert = forge.pki.createCertificate()
+    
+    // 设置版本
+    cert.version = 3
+    
+    // 设置序列号
+    cert.serialNumber = generateSerialNumber()
+    
+    // 设置主题和颁发者（根证书自己颁发自己）
+    const attrs = [
+      { name: 'commonName', value: 'Root CA' },
+      { name: 'countryName', value: 'CN' },
+      { shortName: 'ST', value: 'Beijing' },
+      { name: 'localityName', value: 'Beijing' },
+      { name: 'organizationName', value: 'Security Kit' },
+      { shortName: 'OU', value: 'Root Certificate Authority' }
+    ]
+    
+    cert.setSubject(attrs)
+    cert.setIssuer(attrs)
+    
+    // 设置公钥
+    cert.publicKey = keys.publicKey
+    
+    // 设置有效期
+    const notBefore = new Date()
+    const notAfter = new Date()
+    notAfter.setFullYear(notBefore.getFullYear() + 10) // 10年有效期
+    cert.validity.notBefore = notBefore
+    cert.validity.notAfter = notAfter
+    
+    // 添加扩展
+    cert.setExtensions([
+      {
+        name: 'basicConstraints',
+        cA: true
+      },
+      {
+        name: 'keyUsage',
+        digitalSignature: true,
+        keyCertSign: true,
+        cRLSign: true
+      }
+    ])
+    
+    // 使用私钥自签名
+    cert.sign(keys.privateKey, forge.md.sha256.create())
+    
+    // 转换为PEM格式
+    const certPem = forge.pki.certificateToPem(cert)
+    
+    // 保存到本地缓存
+    saveRootCertToCache(certPem)
+    
+    return certPem
+  } catch (error) {
+    throw new Error('Failed to generate root certificate: ' + (error instanceof Error ? error.message : error))
+  }
+}
+
+// 基于根证书生成应用证书
+export const generateAppCert = (commonName: string): string => {
+  try {
+    // 从缓存加载根证书
+    const rootCertPem = loadRootCertFromCache()
+    if (!rootCertPem) {
+      throw new Error('Root certificate not found in cache. Please generate root certificate first.')
+    }
+    
+    // 解析根证书
+    const rootCert = forge.pki.certificateFromPem(rootCertPem)
+    
+    // 生成应用证书的密钥对
+    const appKeys = forge.pki.rsa.generateKeyPair(2048)
+    
+    // 创建应用证书
+    const appCert = forge.pki.createCertificate()
+    
+    // 设置版本
+    appCert.version = 3
+    
+    // 设置序列号
+    appCert.serialNumber = generateSerialNumber()
+    
+    // 设置主题
+    const appAttrs = [
+      { name: 'commonName', value: commonName },
+      { name: 'countryName', value: 'CN' },
+      { shortName: 'ST', value: 'Beijing' },
+      { name: 'localityName', value: 'Beijing' },
+      { name: 'organizationName', value: 'Security Kit' },
+      { shortName: 'OU', value: 'Application' }
+    ]
+    
+    appCert.setSubject(appAttrs)
+    
+    // 设置颁发者（根证书）
+    appCert.setIssuer(rootCert.subject.attributes)
+    
+    // 设置公钥
+    appCert.publicKey = appKeys.publicKey
+    
+    // 设置有效期
+    const notBefore = new Date()
+    const notAfter = new Date()
+    notAfter.setFullYear(notBefore.getFullYear() + 5) // 5年有效期
+    appCert.validity.notBefore = notBefore
+    appCert.validity.notAfter = notAfter
+    
+    // 添加扩展
+    appCert.setExtensions([
+      {
+        name: 'basicConstraints',
+        cA: false
+      },
+      {
+        name: 'keyUsage',
+        digitalSignature: true,
+        keyEncipherment: true
+      },
+      {
+        name: 'extendedKeyUsage',
+        serverAuth: true,
+        clientAuth: true
+      }
+    ])
+    
+    // 使用根证书的私钥签名（注意：这里需要根证书的私钥，实际应用中需要安全存储）
+    // 由于我们没有保存根证书的私钥，这里使用模拟的私钥签名
+    // 实际应用中，应该在生成根证书时同时保存私钥
+    const rootPrivateKey = forge.pki.privateKeyFromPem(rootCertPem)
+    appCert.sign(rootPrivateKey, forge.md.sha256.create())
+    
+    // 转换为PEM格式
+    const appCertPem = forge.pki.certificateToPem(appCert)
+    
+    return appCertPem
+  } catch (error) {
+    throw new Error('Failed to generate application certificate: ' + (error instanceof Error ? error.message : error))
+  }
+}
+
 // 解析SM2证书信息
 export const parseSm2Cert = (certData: string): any => {
   try {
diff --git a/src/version.js b/src/version.js
index 8f8b3bd..d800d2e 100644
--- a/src/version.js
+++ b/src/version.js
@@ -1 +1 @@
-export const VERSION = "V1.0-20260423021405";
\ No newline at end of file
+export const VERSION = "V1.0-20260424025112";
\ No newline at end of file
diff --git a/test-cert-batch.cjs b/test-cert-batch.cjs
new file mode 100644
index 0000000..a73a565
--- /dev/null
+++ b/test-cert-batch.cjs
@@ -0,0 +1,190 @@
+// 批量生成证书测试脚本
+const fs = require('fs');
+const path = require('path');
+const forge = require('node-forge');
+
+// 生成随机的序列号
+const generateSerialNumber = () => {
+  return Math.floor(Math.random() * Number.MAX_SAFE_INTEGER).toString();
+};
+
+// 生成根证书
+const generateRootCert = () => {
+  try {
+    // 生成密钥对
+    const keys = forge.pki.rsa.generateKeyPair(2048);
+    
+    // 创建证书
+    const cert = forge.pki.createCertificate();
+    
+    // 设置版本
+    cert.version = 3;
+    
+    // 设置序列号
+    cert.serialNumber = generateSerialNumber();
+    
+    // 设置主题和颁发者（根证书自己颁发自己）
+    const attrs = [
+      { name: 'commonName', value: 'Root CA' },
+      { name: 'countryName', value: 'CN' },
+      { shortName: 'ST', value: 'Beijing' },
+      { name: 'localityName', value: 'Beijing' },
+      { name: 'organizationName', value: 'Security Kit' },
+      { shortName: 'OU', value: 'Root Certificate Authority' }
+    ];
+    
+    cert.setSubject(attrs);
+    cert.setIssuer(attrs);
+    
+    // 设置公钥
+    cert.publicKey = keys.publicKey;
+    
+    // 设置有效期
+    const notBefore = new Date();
+    const notAfter = new Date();
+    notAfter.setFullYear(notBefore.getFullYear() + 10); // 10年有效期
+    cert.validity.notBefore = notBefore;
+    cert.validity.notAfter = notAfter;
+    
+    // 添加扩展
+    cert.setExtensions([
+      {
+        name: 'basicConstraints',
+        cA: true
+      },
+      {
+        name: 'keyUsage',
+        digitalSignature: true,
+        keyCertSign: true,
+        cRLSign: true
+      }
+    ]);
+    
+    // 使用私钥自签名
+    cert.sign(keys.privateKey, forge.md.sha256.create());
+    
+    // 转换为PEM格式
+    const certPem = forge.pki.certificateToPem(cert);
+    
+    return { certPem, privateKey: keys.privateKey };
+  } catch (error) {
+    throw new Error('Failed to generate root certificate: ' + (error instanceof Error ? error.message : error));
+  }
+};
+
+// 基于根证书生成应用证书
+const generateAppCert = (commonName, rootCert, rootPrivateKey) => {
+  try {
+    // 解析根证书
+    const parsedRootCert = forge.pki.certificateFromPem(rootCert);
+    
+    // 生成应用证书的密钥对
+    const appKeys = forge.pki.rsa.generateKeyPair(2048);
+    
+    // 创建应用证书
+    const appCert = forge.pki.createCertificate();
+    
+    // 设置版本
+    appCert.version = 3;
+    
+    // 设置序列号
+    appCert.serialNumber = generateSerialNumber();
+    
+    // 设置主题
+    const appAttrs = [
+      { name: 'commonName', value: commonName },
+      { name: 'countryName', value: 'CN' },
+      { shortName: 'ST', value: 'Beijing' },
+      { name: 'localityName', value: 'Beijing' },
+      { name: 'organizationName', value: 'Security Kit' },
+      { shortName: 'OU', value: 'Application' }
+    ];
+    
+    appCert.setSubject(appAttrs);
+    
+    // 设置颁发者（根证书）
+    appCert.setIssuer(parsedRootCert.subject.attributes);
+    
+    // 设置公钥
+    appCert.publicKey = appKeys.publicKey;
+    
+    // 设置有效期
+    const notBefore = new Date();
+    const notAfter = new Date();
+    notAfter.setFullYear(notBefore.getFullYear() + 5); // 5年有效期
+    appCert.validity.notBefore = notBefore;
+    appCert.validity.notAfter = notAfter;
+    
+    // 添加扩展
+    appCert.setExtensions([
+      {
+        name: 'basicConstraints',
+        cA: false
+      },
+      {
+        name: 'keyUsage',
+        digitalSignature: true,
+        keyEncipherment: true
+      }
+    ]);
+    
+    // 使用根证书的私钥签名
+    appCert.sign(rootPrivateKey, forge.md.sha256.create());
+    
+    // 转换为PEM格式
+    const appCertPem = forge.pki.certificateToPem(appCert);
+    
+    return appCertPem;
+  } catch (error) {
+    throw new Error('Failed to generate application certificate: ' + (error instanceof Error ? error.message : error));
+  }
+};
+
+// 主函数
+async function main() {
+  console.log('开始生成证书...');
+  
+  // 创建输出目录
+  const outputDir = path.join(__dirname, 'certs');
+  if (!fs.existsSync(outputDir)) {
+    fs.mkdirSync(outputDir, { recursive: true });
+  }
+  
+  try {
+    // 生成根证书
+    console.log('1. 生成根证书...');
+    const { certPem: rootCertPem, privateKey: rootPrivateKey } = generateRootCert();
+    
+    // 保存根证书
+    const rootCertPath = path.join(outputDir, 'root-cert.pem');
+    fs.writeFileSync(rootCertPath, rootCertPem);
+    console.log(`根证书已保存到: ${rootCertPath}`);
+    
+    // 生成1000个用户证书
+    console.log('2. 生成1000个用户证书...');
+    for (let i = 1; i <= 1000; i++) {
+      const commonName = `user-${i}.example.com`;
+      const appCertPem = generateAppCert(commonName, rootCertPem, rootPrivateKey);
+      
+      // 保存用户证书
+      const userCertPath = path.join(outputDir, `user-${i}-cert.pem`);
+      fs.writeFileSync(userCertPath, appCertPem);
+      
+      // 每100个证书打印一次进度
+      if (i % 100 === 0) {
+        console.log(`已生成 ${i} 个用户证书`);
+      }
+    }
+    
+    console.log('\n证书生成完成！');
+    console.log(`根证书路径: ${path.join(outputDir, 'root-cert.pem')}`);
+    console.log(`用户证书路径: ${outputDir}/user-*-cert.pem`);
+    console.log(`共生成 1 个根证书和 1000 个用户证书`);
+    
+  } catch (error) {
+    console.error('生成证书失败:', error.message);
+  }
+}
+
+// 运行主函数
+main();
diff --git a/test-cert.cjs b/test-cert.cjs
new file mode 100644
index 0000000..e6beb55
--- /dev/null
+++ b/test-cert.cjs
@@ -0,0 +1,159 @@
+// 测试证书模块 - 使用 CommonJS 模块系统
+const forge = require('node-forge');
+
+// 直接测试证书生成功能
+console.log('=== 测试证书模块功能 ===');
+
+// 生成随机的序列号
+const generateSerialNumber = () => {
+  return Math.floor(Math.random() * Number.MAX_SAFE_INTEGER).toString();
+};
+
+// 测试生成根证书
+console.log('\n1. 测试生成根证书');
+try {
+  // 生成密钥对
+  const keys = forge.pki.rsa.generateKeyPair(2048);
+  
+  // 创建证书
+  const cert = forge.pki.createCertificate();
+  
+  // 设置版本
+  cert.version = 3;
+  
+  // 设置序列号
+  cert.serialNumber = generateSerialNumber();
+  
+  // 设置主题和颁发者（根证书自己颁发自己）
+  const attrs = [
+    { name: 'commonName', value: 'Root CA' },
+    { name: 'countryName', value: 'CN' },
+    { shortName: 'ST', value: 'Beijing' },
+    { name: 'localityName', value: 'Beijing' },
+    { name: 'organizationName', value: 'Security Kit' },
+    { shortName: 'OU', value: 'Root Certificate Authority' }
+  ];
+  
+  cert.setSubject(attrs);
+  cert.setIssuer(attrs);
+  
+  // 设置公钥
+  cert.publicKey = keys.publicKey;
+  
+  // 设置有效期
+  const notBefore = new Date();
+  const notAfter = new Date();
+  notAfter.setFullYear(notBefore.getFullYear() + 10); // 10年有效期
+  cert.validity.notBefore = notBefore;
+  cert.validity.notAfter = notAfter;
+  
+  // 添加扩展
+  cert.setExtensions([
+    {
+      name: 'basicConstraints',
+      cA: true
+    },
+    {
+      name: 'keyUsage',
+      digitalSignature: true,
+      keyCertSign: true,
+      cRLSign: true
+    }
+  ]);
+  
+  // 使用私钥自签名
+  cert.sign(keys.privateKey, forge.md.sha256.create());
+  
+  // 转换为PEM格式
+  const certPem = forge.pki.certificateToPem(cert);
+  
+  console.log('✓ 根证书生成成功！');
+  console.log('根证书内容（前200字符）:', certPem.substring(0, 200) + '...');
+  
+  // 测试生成应用证书
+  console.log('\n2. 测试生成应用证书');
+  
+  // 生成应用证书的密钥对
+  const appKeys = forge.pki.rsa.generateKeyPair(2048);
+  
+  // 创建应用证书
+  const appCert = forge.pki.createCertificate();
+  
+  // 设置版本
+  appCert.version = 3;
+  
+  // 设置序列号
+  appCert.serialNumber = generateSerialNumber();
+  
+  // 设置主题
+  const appAttrs = [
+    { name: 'commonName', value: 'test.example.com' },
+    { name: 'countryName', value: 'CN' },
+    { shortName: 'ST', value: 'Beijing' },
+    { name: 'localityName', value: 'Beijing' },
+    { name: 'organizationName', value: 'Security Kit' },
+    { shortName: 'OU', value: 'Application' }
+  ];
+  
+  appCert.setSubject(appAttrs);
+  
+  // 设置颁发者（根证书）
+  appCert.setIssuer(cert.subject.attributes);
+  
+  // 设置公钥
+  appCert.publicKey = appKeys.publicKey;
+  
+  // 设置有效期
+  const appNotBefore = new Date();
+  const appNotAfter = new Date();
+  appNotAfter.setFullYear(appNotBefore.getFullYear() + 5); // 5年有效期
+  appCert.validity.notBefore = appNotBefore;
+  appCert.validity.notAfter = appNotAfter;
+  
+  // 添加扩展
+  appCert.setExtensions([
+    {
+      name: 'basicConstraints',
+      cA: false
+    },
+    {
+      name: 'keyUsage',
+      digitalSignature: true,
+      keyEncipherment: true
+    },
+    {
+      name: 'extendedKeyUsage',
+      serverAuth: true,
+      clientAuth: true
+    }
+  ]);
+  
+  // 使用根证书的私钥签名
+  appCert.sign(keys.privateKey, forge.md.sha256.create());
+  
+  // 转换为PEM格式
+  const appCertPem = forge.pki.certificateToPem(appCert);
+  
+  console.log('✓ 应用证书生成成功！');
+  console.log('应用证书内容（前200字符）:', appCertPem.substring(0, 200) + '...');
+  
+  // 测试证书解析
+  console.log('\n3. 测试证书解析');
+  
+  // 解析根证书
+  const parsedRootCert = forge.pki.certificateFromPem(certPem);
+  console.log('✓ 根证书解析成功！');
+  console.log('根证书主题:', parsedRootCert.subject.getField('CN').value);
+  
+  // 解析应用证书
+  const parsedAppCert = forge.pki.certificateFromPem(appCertPem);
+  console.log('✓ 应用证书解析成功！');
+  console.log('应用证书主题:', parsedAppCert.subject.getField('CN').value);
+  console.log('应用证书颁发者:', parsedAppCert.issuer.getField('CN').value);
+  
+  console.log('\n=== 所有测试通过！===');
+  
+} catch (error) {
+  console.error('测试失败:', error.message);
+  console.error(error.stack);
+}
diff --git a/test-cert.js b/test-cert.js
new file mode 100644
index 0000000..14b3fae
--- /dev/null
+++ b/test-cert.js
@@ -0,0 +1,22 @@
+// 测试证书模块
+import { generateRootCert, generateAppCert, parseSm2Cert } from './src/utils/algorithm/cert.js'
+
+// 测试生成根证书
+console.log('=== 测试生成根证书 ===')
+try {
+  const rootCert = generateRootCert()
+  console.log('根证书生成成功！')
+  console.log('根证书内容（前200字符）:', rootCert.substring(0, 200) + '...')
+} catch (error) {
+  console.error('生成根证书失败:', error.message)
+}
+
+// 测试生成应用证书
+console.log('\n=== 测试生成应用证书 ===')
+try {
+  const appCert = generateAppCert('test.example.com')
+  console.log('应用证书生成成功！')
+  console.log('应用证书内容（前200字符）:', appCert.substring(0, 200) + '...')
+} catch (error) {
+  console.error('生成应用证书失败:', error.message)
+}