Java生成pfx证书
时间: 2023-07-29 19:07:48 浏览: 54
要使用Java生成pfx证书,可以按照以下步骤进行操作:
1.生成私钥文件
```java
KeyStore keyStore = KeyStore.getInstance("PKCS12");
keyStore.load(null, null);
KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
keyPairGenerator.initialize(2048);
KeyPair keyPair = keyPairGenerator.generateKeyPair();
PrivateKey privateKey = keyPair.getPrivate();
X509Certificate cert = generateCertificate("CN=MyCert", privateKey, keyPair.getPublic());
keyStore.setKeyEntry("mykey", privateKey, "password".toCharArray(), new Certificate[] {cert});
FileOutputStream out = new FileOutputStream("mykey.pfx");
keyStore.store(out, "password".toCharArray());
out.close();
```
2.生成证书文件
```java
private static X509Certificate generateCertificate(String dn, PrivateKey privateKey, PublicKey publicKey) throws GeneralSecurityException {
X509V3CertificateGenerator certGen = new X509V3CertificateGenerator();
X500Principal dnName = new X500Principal(dn);
certGen.setSerialNumber(BigInteger.valueOf(System.currentTimeMillis()));
certGen.setSubjectDN(dnName);
certGen.setIssuerDN(dnName); // use the same
certGen.setNotBefore(new Date(System.currentTimeMillis() - 1000L * 60 * 60 * 24 * 30)); // 30 days before
certGen.setNotAfter(new Date(System.currentTimeMillis() + (1000L * 60 * 60 * 24 * 365 * 10))); // 10 years after
certGen.setPublicKey(publicKey);
certGen.setSignatureAlgorithm("SHA256WithRSAEncryption");
return certGen.generate(privateKey);
}
```
3.导出pfx证书
将生成的私钥文件(mykey.pfx)导出为pfx格式的证书,可以使用openssl命令:
```shell
openssl pkcs12 -export -inkey mykey.pfx -in mykey.pfx -out mykey.pfx
```
这样就可以生成pfx格式的证书文件了。