.pfx数字证书制作及操作使用

大家好，又见面了，我是你们的朋友全栈君。

#.pfx数字证书制作及操作使用

1. 使用工具
2. .pfx创建
3. 从*.pfx文件提取密钥
4. Java代码操作

#工具下载地址

链接：https://pan.baidu.com/s/1IWA2-Gtws36NQm-UCXGqHg 提取码：kwg9 复制这段内容后打开百度网盘手机App，操作更方便哦

#创建.pfx

CN=名称(一般填公司名称)
OU=单位名称
O=作者名称
L=地区
C=国家

第一步打开CertManager.exe

第二步

第三步

以上步骤操作完成之后会生成以下文件

#从.pfx文件提取密钥*

方法:

1:通过keytool密钥库导入命令importkeystore，将密钥库格式由 PKCS#12转换为JKS。
2:检索新生成的密钥库文件，提取别名信息。
3:由密钥库文件导出数字证书（这里将用到别名）。
4:通过代码提取公钥/私钥、签名算法等.

CMD代码

keytool -importkeystore -v -srckeystore zcs.pfx -srcstoretype pkcs12 -srcstorepass 12345678 -destkeystore zcs.keystore -deststoretype jks -deststorepass 12345678
######=================================================================
**-importkeystore:**导入密钥库，通过格式设定，我们可以将PKCS#12文件转换为JKS格式。
-v显示详情
**-srckeystore:**源密钥库，这里是zcs.pfx
**-srcstoretype:**源密钥库格式，这里为pkcs12
**-srcstorepass:**源密钥库密码，这里为12345678
**-destkeystore:**目标密钥库，这里为zcs.keystore
**-deststoretype:**目标密钥库格式，这里为jks，默认值也如此
**-deststorepass:**目标密钥库密码，这里为12345678

通过这个操作，我们能够获得所需的密钥库文件zlex.keystore。
在output目录下按住shift键右击鼠标打开命令行

这时，我们已经获得了密钥库文件，只要确定对应的别名信息，就可以提取公钥/私钥，以及数字证书，进行加密交互了！

CMD代码

keytool -list -keystore zcs.keystore -storepass 12345678 -v

**-list:**列举密钥库
**-keystore:**密钥库，这里是zcs.keystore
**-storepass:**密钥库密码，这里是12345678
**-v:**显示详情

现在可以导出证书了
CMD代码

keytool -exportcert -alias pvktmp:4c306f24-9992-446d-a334-82e8be541ca5 -keystore zcs.keystore -file zcs.crt -storepass 12345678

**-exportcert:**导出证书
**-alias:**别名，这里是1
**-keystore:**密钥库，这里是zcs.keystore
**-file:**证书文件，这里是zcs.crt
**-storepass:**密钥库密码，这里是12345678

最后上Java代码:

package com.charsen.test;


import java.io.FileInputStream;
import java.security.KeyStore;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.Signature;
import java.security.cert.Certificate;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;
import java.util.Date;

import javax.crypto.Cipher;

public class CertificateCoder {
	/**
	 * Java密钥库(Java Key Store，JKS)KEY_STORE
	 */
	public static final String KEY_STORE = "JKS";

	public static final String X509 = "X.509";

	/**
	 * 由 KeyStore获得私钥
	 * 
	 * @param keyStorePath
	 * @param keyStorePassword
	 * @param alias
	 * @param aliasPassword
	 * @return
	 * @throws Exception
	 */
	private static PrivateKey getPrivateKey(String keyStorePath,
			String keyStorePassword, String alias, String aliasPassword)
			throws Exception {
		KeyStore ks = getKeyStore(keyStorePath, keyStorePassword);
		PrivateKey key = (PrivateKey) ks.getKey(alias,
				aliasPassword.toCharArray());
		return key;
	}

	/**
	 * 由 Certificate获得公钥
	 * 
	 * @param certificatePath
	 * @return
	 * @throws Exception
	 */
	private static PublicKey getPublicKey(String certificatePath)
			throws Exception {
		Certificate certificate = getCertificate(certificatePath);
		PublicKey key = certificate.getPublicKey();
		return key;
	}

	/**
	 * 获得Certificate
	 * 
	 * @param certificatePath
	 * @return
	 * @throws Exception
	 */
	private static Certificate getCertificate(String certificatePath)
			throws Exception {
		CertificateFactory certificateFactory = CertificateFactory
				.getInstance(X509);
		FileInputStream in = new FileInputStream(certificatePath);

		Certificate certificate = certificateFactory.generateCertificate(in);
		in.close();

		return certificate;
	}

	/**
	 * 获得Certificate
	 * 
	 * @param keyStorePath
	 * @param keyStorePassword
	 * @param alias
	 * @return
	 * @throws Exception
	 */
	private static Certificate getCertificate(String keyStorePath,
			String keyStorePassword, String alias) throws Exception {
		KeyStore ks = getKeyStore(keyStorePath, keyStorePassword);
		Certificate certificate = ks.getCertificate(alias);

		return certificate;
	}

	/**
	 * 获得KeyStore
	 * 
	 * @param keyStorePath
	 * @param password
	 * @return
	 * @throws Exception
	 */
	private static KeyStore getKeyStore(String keyStorePath, String password)
			throws Exception {
		FileInputStream is = new FileInputStream(keyStorePath);
		KeyStore ks = KeyStore.getInstance(KEY_STORE);
		ks.load(is, password.toCharArray());
		is.close();
		return ks;
	}

	/**
	 * 私钥加密
	 * 
	 * @param data
	 * @param keyStorePath
	 * @param keyStorePassword
	 * @param alias
	 * @param aliasPassword
	 * @return
	 * @throws Exception
	 */
	public static byte[] encryptByPrivateKey(byte[] data, String keyStorePath,
			String keyStorePassword, String alias, String aliasPassword)
			throws Exception {
		// 取得私钥
		PrivateKey privateKey = getPrivateKey(keyStorePath, keyStorePassword,
				alias, aliasPassword);

		// 对数据加密
		Cipher cipher = Cipher.getInstance(privateKey.getAlgorithm());
		cipher.init(Cipher.ENCRYPT_MODE, privateKey);

		return cipher.doFinal(data);

	}

	/**
	 * 私钥解密
	 * 
	 * @param data
	 * @param keyStorePath
	 * @param alias
	 * @param keyStorePassword
	 * @param aliasPassword
	 * @return
	 * @throws Exception
	 */
	public static byte[] decryptByPrivateKey(byte[] data, String keyStorePath,
			String alias, String keyStorePassword, String aliasPassword)
			throws Exception {
		// 取得私钥
		PrivateKey privateKey = getPrivateKey(keyStorePath, keyStorePassword,
				alias, aliasPassword);

		// 对数据加密
		Cipher cipher = Cipher.getInstance(privateKey.getAlgorithm());
		cipher.init(Cipher.DECRYPT_MODE, privateKey);

		return cipher.doFinal(data);

	}

	/**
	 * 公钥加密
	 * 
	 * @param data
	 * @param certificatePath
	 * @return
	 * @throws Exception
	 */
	public static byte[] encryptByPublicKey(byte[] data, String certificatePath)
			throws Exception {

		// 取得公钥
		PublicKey publicKey = getPublicKey(certificatePath);
		// 对数据加密
		Cipher cipher = Cipher.getInstance(publicKey.getAlgorithm());
		cipher.init(Cipher.ENCRYPT_MODE, publicKey);

		return cipher.doFinal(data);

	}

	/**
	 * 公钥解密
	 * 
	 * @param data
	 * @param certificatePath
	 * @return
	 * @throws Exception
	 */
	public static byte[] decryptByPublicKey(byte[] data, String certificatePath)
			throws Exception {
		// 取得公钥
		PublicKey publicKey = getPublicKey(certificatePath);

		// 对数据加密
		Cipher cipher = Cipher.getInstance(publicKey.getAlgorithm());
		cipher.init(Cipher.DECRYPT_MODE, publicKey);

		return cipher.doFinal(data);

	}

	/**
	 * 验证Certificate
	 * 
	 * @param certificatePath
	 * @return
	 */
	public static boolean verifyCertificate(String certificatePath) {
		return verifyCertificate(new Date(), certificatePath);
	}

	/**
	 * 验证Certificate是否过期或无效
	 * 
	 * @param date
	 * @param certificatePath
	 * @return
	 */
	public static boolean verifyCertificate(Date date, String certificatePath) {
		boolean status = true;
		try {
			// 取得证书
			Certificate certificate = getCertificate(certificatePath);
			// 验证证书是否过期或无效
			status = verifyCertificate(date, certificate);
		} catch (Exception e) {
			status = false;
		}
		return status;
	}

	/**
	 * 验证证书是否过期或无效
	 * 
	 * @param date
	 * @param certificate
	 * @return
	 */
	private static boolean verifyCertificate(Date date, Certificate certificate) {
		boolean status = true;
		try {
			X509Certificate x509Certificate = (X509Certificate) certificate;
			x509Certificate.checkValidity(date);
		} catch (Exception e) {
			status = false;
		}
		return status;
	}

	/**
	 * 签名
	 * 
	 * @param keyStorePath
	 * @param alias
	 * @param keyStorePassword
	 * @param aliasPassword
	 * @return
	 * @throws Exception
	 */
	public static byte[] sign(byte[] sign, String keyStorePath, String alias,
			String keyStorePassword, String aliasPassword) throws Exception {
		// 获得证书
		X509Certificate x509Certificate = (X509Certificate) getCertificate(
				keyStorePath, keyStorePassword, alias);

		// 取得私钥
		PrivateKey privateKey = getPrivateKey(keyStorePath, keyStorePassword,
				alias, aliasPassword);

		// 构建签名
		Signature signature = Signature.getInstance(x509Certificate
				.getSigAlgName());
		signature.initSign(privateKey);
		signature.update(sign);
		return signature.sign();
	}

	/**
	 * 验证签名
	 * 
	 * @param data
	 * @param sign
	 * @param certificatePath
	 * @return
	 * @throws Exception
	 */
	public static boolean verify(byte[] data, byte[] sign,
			String certificatePath) throws Exception {
		// 获得证书
		X509Certificate x509Certificate = (X509Certificate) getCertificate(certificatePath);
		// 获得公钥
		PublicKey publicKey = x509Certificate.getPublicKey();
		// 构建签名
		Signature signature = Signature.getInstance(x509Certificate
				.getSigAlgName());
		signature.initVerify(publicKey);
		signature.update(data);

		return signature.verify(sign);

	}

	/**
	 * 验证Certificate
	 * 
	 * @param keyStorePath
	 * @param keyStorePassword
	 * @param alias
	 * @return
	 */
	public static boolean verifyCertificate(Date date, String keyStorePath,
			String keyStorePassword, String alias) {
		boolean status = true;
		try {
			Certificate certificate = getCertificate(keyStorePath,
					keyStorePassword, alias);
			status = verifyCertificate(date, certificate);
		} catch (Exception e) {
			status = false;
		}
		return status;
	}

	/**
	 * 验证Certificate
	 * 
	 * @param keyStorePath
	 * @param keyStorePassword
	 * @param alias
	 * @return
	 */
	public static boolean verifyCertificate(String keyStorePath,
			String keyStorePassword, String alias) {
		return verifyCertificate(new Date(), keyStorePath, keyStorePassword,
				alias);
	}
}

测试类

package com.charsen.test;

import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

import java.util.Date;

import org.apache.commons.codec.binary.Hex;
import org.junit.Test;

public class CertificateCoderTest {
	private String certificatePath = "D:\\MyWorkSpace\\UBSS\\test\\src\\sdk.crt";
	private String keyStorePath = "D:\\MyWorkSpace\\UBSS\\test\\src\\sdk.keystore";
	private String keyStorePassword = "12345678";
	private String aliasPassword = "12345678";
	private String alias = "pvktmp:4c306f24-9992-446d-a334-82e8be541ca5";

	@Test
	public void test() throws Exception {
		System.err.println("公钥加密——私钥解密");
		String inputStr = "Ceritifcate";
		byte[] data = inputStr.getBytes();

		byte[] encrypt = CertificateCoder.encryptByPublicKey(data,
				certificatePath);

		byte[] decrypt = CertificateCoder.decryptByPrivateKey(encrypt,
				keyStorePath, alias, keyStorePassword, aliasPassword);
		String outputStr = new String(decrypt);

		System.err.println("加密前: " + inputStr + "\n\r" + "解密后: " + outputStr);

		// 验证数据一致
		assertArrayEquals(data, decrypt);

		// 验证证书有效
		assertTrue(CertificateCoder.verifyCertificate(certificatePath));

	}

	@Test
	public void testSign() throws Exception {
		System.err.println("私钥加密——公钥解密");

		String inputStr = "sign";
		byte[] data = inputStr.getBytes();

		byte[] encodedData = CertificateCoder.encryptByPrivateKey(data,
				keyStorePath, keyStorePassword, alias, aliasPassword);

		byte[] decodedData = CertificateCoder.decryptByPublicKey(encodedData,
				certificatePath);

		String outputStr = new String(decodedData);
		System.err.println("加密前: " + inputStr + "\n\r" + "解密后: " + outputStr);
		assertEquals(inputStr, outputStr);

		System.err.println("私钥签名——公钥验证签名");
		// 产生签名
		byte[] sign = CertificateCoder.sign(encodedData, keyStorePath, alias,
				keyStorePassword, aliasPassword);
		System.err.println("签名:\r" + Hex.encodeHexString(sign));

		// 验证签名
		boolean status = CertificateCoder.verify(encodedData, sign,
				certificatePath);
		System.err.println("状态:\r" + status);
		assertTrue(status);
	}

	@Test
	public void testVerify() throws Exception {
		System.err.println("密钥库证书有效期验证");
		boolean status = CertificateCoder.verifyCertificate(new Date(),
				keyStorePath, keyStorePassword, alias);
		System.err.println("证书状态:\r" + status);
		assertTrue(status);
	}
}