【SM2证书】利用BC的X509v3CertificateBuilder组装X509国密证书

证书文件 链接: https://pan.baidu.com/s/1ijHNnMQJj7jzW-jXEVd6Gg 密码: vfva

所需jar包

<!-- https://mvnrepository.com/artifact/org.bouncycastle/bcpkix-jdk15on -->
 <dependency>
	<groupId>org.bouncycastle</groupId>
	<artifactId>bcpkix-jdk15on</artifactId>
	<version>1.57</version>
</dependency> 
<!-- https://mvnrepository.com/artifact/org.bouncycastle/bcmail-jdk16 -->
<dependency>
	<groupId>org.bouncycastle</groupId>
	<artifactId>bcmail-jdk15on</artifactId>
	<version>1.56</version>
</dependency>

部分代码(基本包含了全部)

	/**
	 * 生成国密ROOT证书方法 X509v3CertificateBuilder
	 * @param pageCert.getCn()+","+
	 * @throws Exception
	 */
	public static Cert genSM2CertByX509v3CertificateBuilder(PageCert pageCert) throws Exception {
		org.bouncycastle.jce.provider.BouncyCastleProvider bouncyCastleProvider = new org.bouncycastle.jce.provider.BouncyCastleProvider();
		Security.addProvider(bouncyCastleProvider);
		String fileName = "root"+new Date().getTime()/1000;
		String path  = "F:/root/";
		String rootCertPath = path+fileName+".cer";
		Cert cert = new Cert();
		try {
			//公私钥对 QQ:783021975
			KeyPair kp = KeyGenUtil.getKeyPair2SM2(path,fileName);
			//转换成ECPublicKeyParameters  ECPrivateKeyParameters
			ECPublicKeyParameters bcecPublicKey =(ECPublicKeyParameters) ECUtil.generatePublicKeyParameter(kp.getPublic());
			ECPrivateKeyParameters bcecPrivateKey = (ECPrivateKeyParameters) ECUtil.generatePrivateKeyParameter(kp.getPrivate());
			//申请服务器证书信息
		        String  issuerString = "CN="+pageCert.getCn()+",O="+pageCert.getO();
			X500Name issueDn = new X500Name(issuerString);  
	                X500Name subjectDn = new X500Name(issuerString);  
	                SubjectPublicKeyInfo info =createSubjectECPublicKeyInfo(bcecPublicKey);
	                SubjectPublicKeyInfo publicKeyInfo = SubjectPublicKeyInfo.getInstance(ASN1Sequence.getInstance(kp.getPublic().getEncoded()));
			X509v3CertificateBuilder builder = new X509v3CertificateBuilder(issueDn, BigInteger.valueOf(System.currentTimeMillis()), new Date(), Util4Hex.getYearLater(5), Locale.CHINA, subjectDn, info);
			//基本约束
			BasicConstraints basicConstraints = new BasicConstraints(0);
			builder.addExtension(Extension.basicConstraints, true, basicConstraints);
			//添加CRL分布点 QQ:783021975
			builder.addExtension(Extension.cRLDistributionPoints, true, XSCertExtension.getCRLDIstPoint());
			//添加证书策略 QQ:783021975
			builder.addExtension(Extension.certificatePolicies, true, new DERSequence(XSCertExtension.getPolicyInfo()));
			//颁发者密钥标识
			DigestCalculator calculator = new BcDigestCalculatorProvider().get(new AlgorithmIdentifier(OIWObjectIdentifiers.idSHA1));
			X509ExtensionUtils extensionUtils = new X509ExtensionUtils(calculator);
			builder.addExtension(Extension.authorityKeyIdentifier, false, extensionUtils.createAuthorityKeyIdentifier(publicKeyInfo));
			//使用者密钥标识 
			builder.addExtension(Extension.subjectKeyIdentifier, false,extensionUtils.createSubjectKeyIdentifier(publicKeyInfo));
			//密钥用法 QQ:783021975
			builder.addExtension(Extension.keyUsage,true,XSCertExtension.getKeyUsage());
			//增强密钥用法 QQ:783021975
			builder.addExtension(Extension.extendedKeyUsage,true,XSCertExtension.getExtendKeyUsage());
			AlgorithmIdentifier sigAlgId = new DefaultSignatureAlgorithmIdentifierFinder().find("SM3WITHSM2");  
			AlgorithmIdentifier digAlgId = new DefaultDigestAlgorithmIdentifierFinder().find("SHA1");
			ContentSigner contentSigner = new BcECContentSignerBuilder(sigAlgId,digAlgId).build(bcecPrivateKey);
			X509CertificateHolder certificateHolder = builder.build(contentSigner);
			FileOutputStream outputStream = new FileOutputStream(rootCertPath);
			outputStream.write(certificateHolder.getEncoded());
			outputStream.close();
			//cert只是一个Java对象 没有实际意义哦
			cert.setCertname(fileName);
			cert.setCertinfo("CN="+pageCert.getCn()+",O="+pageCert.getO());
			cert.setSignalgor("1.2.156.10197.1.501");
			cert.setAlgorithm("EC&SM2");
			cert.setSessionalgor("SM3");
			cert.setStatus(0);
			cert.setPri_path(path+fileName+"privateKey.keystore");
			cert.setPub_path(path+fileName+"publicKey.keystore");
			return cert;
		} catch (Exception e) {
			e.printStackTrace();
			System.out.println("======根证书申请失败"+e.getMessage());
			return null;
		}
	}

如需要了解更多 请查看  https://blog.csdn.net/u010651369/article/details/76907312