java生成pfx证书[通俗易懂]

java生成pfx证书[通俗易懂]packagecom.zrsf.cert;importjava.io.File;importjava.io.FileInputStream;importjava.io.FileNotFoundException;importjava.io.FileOutputStream;importjava.io.IOException;importjava.mat

大家好,又见面了,我是你们的朋友全栈君。package com.zrsf.cert;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import java.math.BigInteger;

import java.security.KeyPair;

import java.security.KeyPairGenerator;

import java.security.KeyStore;

import java.security.NoSuchAlgorithmException;

import java.security.PrivateKey;

import java.security.PublicKey;

import java.security.SecureRandom;

import java.security.Signature;

import java.security.SignatureException;

import java.security.cert.Certificate;

import java.security.cert.CertificateException;

import java.security.cert.X509Certificate;

import java.util.Date;

import java.util.HashMap;

import java.util.Map;

import java.util.Vector;

import java.util.Map.Entry;

import sun.security.util.ObjectIdentifier;

import sun.security.x509.AlgorithmId;

import sun.security.x509.CertAndKeyGen;

import sun.security.x509.CertificateAlgorithmId;

import sun.security.x509.CertificateExtensions;

import sun.security.x509.CertificateSerialNumber;

import sun.security.x509.CertificateValidity;

import sun.security.x509.CertificateVersion;

import sun.security.x509.CertificateX509Key;

import sun.security.x509.ExtendedKeyUsageExtension;

import sun.security.x509.KeyIdentifier;

import sun.security.x509.KeyUsageExtension;

import sun.security.x509.SerialNumber;

import sun.security.x509.SubjectKeyIdentifierExtension;

import sun.security.x509.X500Name;

import sun.security.x509.X500Signer;

import sun.security.x509.X509CertImpl;

import sun.security.x509.X509CertInfo;

public class GenX509Cert {


private SecureRandom sr = new SecureRandom();


private String root = “Root”;// 根证书前缀


private static String rootUser = “签名服务器”;// 证书颁发者


public GenX509Cert() {


try {


sr = SecureRandom.getInstance(“SHA1PRNG”, “SUN”);


} catch (Exception e) {


System.err.println(“实例化SecureRandom出错:”+e.getMessage());





}


public void createCert(X509Certificate certificate, PrivateKey rootPrivKey,


KeyPair kp, String certPath, String user, String password,


String sbh, String ip) throws Exception {


byte certbytes[] = certificate.getEncoded();


X509CertImpl x509certimpl = new X509CertImpl(certbytes);


X509CertInfo x509certinfo = (X509CertInfo) x509certimpl


.get(“x509.info”);


x509certinfo.set(“key”, new CertificateX509Key(kp.getPublic()));


CertificateExtensions certificateextensions = new CertificateExtensions();


certificateextensions.set(“SubjectKeyIdentifier”,


new SubjectKeyIdentifierExtension((new KeyIdentifier(kp


.getPublic())).getIdentifier()));


x509certinfo.set(“extensions”, certificateextensions);


// 设置issuer域


X500Name issuer = new X500Name(“CN=” + rootUser


+ “,OU=hackwp,O=wp,L=BJ,S=BJ,C=CN”);


x509certinfo.set(“issuer.dname”, issuer);


X500Name subject = new X500Name(“CN=” + user


+ “, OU=wps, O=wps, L=BJ, ST=BJ, C=CN”);


x509certinfo.set(“subject.dname”, subject);


Signature signature = Signature.getInstance(“MD5WithRSA”);


signature.initSign(kp.getPrivate());


X500Signer signer = new X500Signer(signature, issuer);


AlgorithmId algorithmid = signer.getAlgorithmId();


x509certinfo


.set(“algorithmID”, new CertificateAlgorithmId(algorithmid));


Date bdate = new Date();


Date edate = new Date();


// 天 小时 分 秒 毫秒


edate.setTime(bdate.getTime() + 3650L * 24L * 60L * 60L * 1000L);


// validity为有效时间长度 单位为秒


CertificateValidity certificatevalidity = new CertificateValidity(


bdate, edate);


x509certinfo.set(“validity”, certificatevalidity);


// 设置有效期域(包含开始时间和到期时间)域名等同与x509certinfo.VALIDITY


x509certinfo.set(“serialNumber”, new CertificateSerialNumber(


(int) (new Date().getTime() / 1000L)));


// 设置序列号域


CertificateVersion cv = new CertificateVersion(CertificateVersion.V3);


x509certinfo.set(X509CertInfo.VERSION, cv);


// 设置版本号 只有v1 ,v2,v3这几个合法值


/**


*以上是证书的基本信息 如果要添加用户扩展信息 则比较麻烦 首先要确定version必须是v3否则不行 然后按照以下步骤


**/


String userData = “Digital Signature, Non-Repudiation, Key Encipherment, Data Encipherment (f0)”;


byte l = (byte) userData.length();// 数据总长17位


byte f = 0x04;


byte[] bs = new byte[userData.length() + 2];


bs[0] = f;


bs[1] = l;


for (int i = 2; i < bs.length; i++) {


bs[i] = (byte) userData.charAt(i – 2);


}


KeyUsageExtension keyUsage = new KeyUsageExtension();


keyUsage.set(KeyUsageExtension.DIGITAL_SIGNATURE, true);


keyUsage.set(KeyUsageExtension.NON_REPUDIATION, true);


keyUsage.set(KeyUsageExtension.KEY_ENCIPHERMENT, true);


keyUsage.set(KeyUsageExtension.DATA_ENCIPHERMENT, true);


// 增强密钥用法


ObjectIdentifier ekeyOid = new ObjectIdentifier(new int[] { 1, 3, 6, 1,


5, 5, 7, 3, 3 });


Vector<ObjectIdentifier> vkeyOid = new Vector<ObjectIdentifier>();


vkeyOid.add(ekeyOid);


ExtendedKeyUsageExtension exKeyUsage = new ExtendedKeyUsageExtension(


vkeyOid);


CertificateExtensions exts = new CertificateExtensions();


exts.set(“keyUsage”, keyUsage);


exts.set(“extendedKeyUsage”, exKeyUsage);


// 如果有多个extension则都放入CertificateExtensions 类中,


x509certinfo.set(X509CertInfo.EXTENSIONS, exts);


X509CertImpl x509certimpl1 = new X509CertImpl(x509certinfo);


SerialNumber sn = new SerialNumber(new BigInteger(ip


+ System.currentTimeMillis()));


x509certimpl1.set(X509CertImpl.SERIAL_ID, sn);// 设置证书序列号


x509certimpl1.sign(rootPrivKey, “MD5WithRSA”);// 使用另一个证书的私钥来签名此证书 这里使用


// md5散列 用rsa来加密


Certificate[] certChain = { x509certimpl1 };


savePfx(Util.certCA, kp.getPrivate(), password, certChain, certPath);


// 生成文件


x509certimpl1.verify(certificate.getPublicKey(), null);


}


/**


* 保存pfx文件,里面包括公钥,私钥,证书链别名





* @param alias


* @param privKey


* @param pwd


* @param certChain


* @param filepath


* @throws Exception


*/


public void savePfx(String alias, PrivateKey privKey, String pwd,


Certificate[] certChain, String filepath) throws Exception {


FileOutputStream out = null;


try {


KeyStore outputKeyStore = KeyStore.getInstance(“pkcs12”);


outputKeyStore.load(null, pwd.toCharArray());


outputKeyStore.setKeyEntry(alias, privKey, pwd.toCharArray(),


certChain);


out = new FileOutputStream(filepath);


outputKeyStore.store(out, pwd.toCharArray());


} finally {


if (out != null)


out.close();


}


}


/**


* 生成用户证书





* @param sbh


*            纳税人识别号(文件名,不包含后缀)


* @param user


*            证书使用者


* @param path


*            证书保存路径(不包括文件名),如要保存在D盘的home目录下则输入:D:/home


* @param password


*            证书密码


* @param ip


*            客户端请求的ip


* @return map里面包含两个key,一个code,一个msg,如果code等于0000则为生成成功,如果code不等于0000则为生成失败,


*         msg里面保存失败原因


*/


public Map<String, String> createCA(String sbh, String user, String path,


String password, String ip) {


Map<String, String> map = new HashMap<String, String>();


if (sbh == null || “”.equals(sbh)) {


map.put(“code”, “-1”);


map.put(“msg”, “纳税人识别号不能为空”);


return map;


}


if (user == null || “”.equals(user)) {


map.put(“code”, “-1”);


map.put(“msg”, “证书使用者不能为空”);


return map;


}


if (path == null || “”.equals(path)) {


map.put(“code”, “-1”);


map.put(“msg”, “保存路径不能为空”);


return map;


}


if (password == null || “”.equals(password)) {


map.put(“code”, “-1”);


map.put(“msg”, “证书密码不能为空”);


return map;


}


if (!Util.ipCheck(ip)) {// 验证IP地址是否合法


map.put(“code”, “-1”);


map.put(“msg”, “IP地址不合法”);


return map;


}


if(!new File(path).exists()){


map.put(“code”, “5555”);


map.put(“msg”, “保存文件的目录不存在”);


return map;


}


String rootPath = path + File.separator + root + sbh + “.pfx”;


String certPath = path + File.separator + sbh + “.pfx”;


File file = new File(rootPath);


if (file.exists()) {


map.put(“code”, “6666”);


map.put(“msg”, “文件已存在”);


return map;


}


try {


CertAndKeyGen cak = new CertAndKeyGen(“RSA”, “MD5WithRSA”, null);


// 参数分别为 公钥算法 签名算法 providername(因为不知道确切的 只好使用null 既使用默认的provider)


cak.generate(1024);


cak.setRandom(sr);


// 生成一对key 参数为key的长度 对于rsa不能小于512


X500Name subject = new X500Name(


“CN=root,OU=root,O=wp,L=BJ,S=BJ,C=CN”);


// subject name


X509Certificate certificate = cak.getSelfCertificate(subject,


new Date(), 365L * 24L * 60L * 60L * 1000L * 5L);


X509Certificate[] certs = { certificate };


savePfx(Util.rootCA, cak.getPrivateKey(), password, certs, rootPath);


ip = Util.getIpNum(ip);


signCert(rootPath, certPath, user, password, sbh, ip);


map.put(“code”, “0000”);


map.put(“msg”, “用户证书生成成功”);


return map;


} catch (Exception e) {


if (file != null) {


file.delete();


}


File file2 = new File(certPath);


if (file2.exists())


file2.delete();


map.put(“code”, “9999”);


map.put(“msg”, “生成用户证书发生异常:” + e.getMessage());


return map;


}


}


/**





* @param rootPath


*            根证书路径


* @param certPath


*            用户证书路径


* @param user


*            证书使用者


* @param password


*            证书密码


* @param sbh


*            纳税人识别号


* @param ip


*            请求地址的ip


* @throws Exception


*/


public void signCert(String rootPath, String certPath, String user,


String password, String sbh, String ip) throws Exception {


FileInputStream ksfis = null;


try {


KeyStore ks = KeyStore.getInstance(“pkcs12”);


ksfis = new FileInputStream(rootPath);


char[] storePwd = password.toCharArray();


char[] keyPwd = password.toCharArray();


ks.load(ksfis, storePwd);


// 从密钥仓库得到私钥


PrivateKey privK = (PrivateKey) ks.getKey(Util.rootCA, keyPwd);


X509Certificate certificate = (X509Certificate) ks


.getCertificate(Util.rootCA);


createCert(certificate, privK, genKey(), certPath, user, password,


sbh, ip);


} finally {


if (ksfis != null)


ksfis.close();


}


}


public KeyPair genKey() throws NoSuchAlgorithmException {


KeyPairGenerator kpg = KeyPairGenerator.getInstance(“RSA”);


kpg.initialize(1024, sr);


KeyPair kp = kpg.generateKeyPair();


return kp;


}


/**


* 获取证书序列号和公钥





* @param path


*            证读取证书的路径


* @param pass


*            读取证书的密码


* @return


*/


public Map<String, String> getCertMessage(String path, String pass) {


Map<String, String> map = new HashMap<String, String>();


KeyStore ks;


FileInputStream fis = null;


if (pass == null || “”.equals(pass) || path == null || “”.equals(path)) {


map.put(“code”, “-1”);


map.put(“msg”, “参数错误”);


return map;


}


try {


ks = KeyStore.getInstance(“PKCS12”);


fis = new FileInputStream(path);


char[] nPassword = null;


if ((pass == null) || pass.trim().equals(“”)) {


nPassword = null;


} else {


nPassword = pass.toCharArray();


}


ks.load(fis, nPassword);


X509Certificate cert = (X509Certificate) ks


.getCertificate(Util.certCA);


PublicKey pubkey = cert.getPublicKey();


byte pb[] = Serializer.serialize(pubkey);


map.put(“code”, “0000”);


map.put(“msg”, “数据返回成功”);


map.put(“certNumber”, cert.getSerialNumber().toString());


map.put(“cert”, Base64Utils.encode(pb));


return map;


} catch (FileNotFoundException e) {


map.put(“code”, “1111”);


map.put(“msg”, “文件没有找到:” + e.getMessage());


return map;


} catch (CertificateException e) {


map.put(“code”, “2222”);


map.put(“msg”, “读取证书异常:” + e.getMessage());


return map;


} catch (IOException e) {


map.put(“code”, “4444”);


map.put(“msg”, “IO异常:” + e.getMessage());


return map;


} catch (Exception e) {


map.put(“code”, “9999”);


map.put(“msg”, “未知异常:” + e.getMessage());


return map;


}finally{


if(fis!=null)


try {


fis.close();


} catch (IOException e) {


e.printStackTrace();


}


}


}


/**


* 签名数据





* @param path


*            读取证书路径


* @param pass


*            读取证书密码


* @param data


*            待签名数据


* @return


*/


public Map<String, String> signData(String path, String pass, String data) {


Map<String, String> map = new HashMap<String, String>();


KeyStore ks;


FileInputStream fis = null;


if (pass == null || “”.equals(pass) || path == null || “”.equals(path)


|| data == null || “”.equals(data)) {


map.put(“code”, “-1”);


map.put(“msg”, “参数错误”);


return map;


}


try {


ks = KeyStore.getInstance(“PKCS12”);


fis = new FileInputStream(path);


char[] nPassword = null;


if ((pass == null) || pass.trim().equals(“”)) {


nPassword = null;


} else {


nPassword = pass.toCharArray();


}


ks.load(fis, nPassword);


X509Certificate cert = (X509Certificate) ks.getCertificate(Util.certCA);


PrivateKey prikey = (PrivateKey) ks.getKey(Util.certCA, nPassword);


Signature sig = Signature.getInstance(“MD5WithRSA”);


sig.initSign(prikey);


sig.update(data.getBytes(“UTF-8”));


byte b[] = sig.sign();





map.put(“code”, “0000”);


map.put(“msg”, “数据返回成功”);


map.put(“certNumber”, cert.getSerialNumber().toString());


map.put(“sign”, Base64Utils.encode(b));


return map;


} catch (FileNotFoundException e) {


map.put(“code”, “1111”);


map.put(“msg”, “文件没有找到:” + e.getMessage());


return map;


} catch (CertificateException e) {


map.put(“code”, “2222”);


map.put(“msg”, “读取证书异常:” + e.getMessage());


return map;


} catch (NoSuchAlgorithmException e) {


map.put(“code”, “2222”);


map.put(“msg”, “读取证书异常:” + e.getMessage());


return map;


} catch (SignatureException e) {


map.put(“code”, “3333”);


map.put(“msg”, “签名异常:” + e.getMessage());


return map;


} catch (IOException e) {


map.put(“code”, “4444”);


map.put(“msg”, “IO异常:” + e.getMessage());


return map;


} catch (Exception e) {


map.put(“code”, “9999”);


map.put(“msg”, “未知异常:” + e.getMessage());


return map;


} finally {


if (fis != null)


try {


fis.close();


} catch (IOException e) {


System.out.println(e.getMessage());


}


}


}


public void verify(String key,String sign,String signData) throws Exception{


byte []pb = Base64Utils.decode(key);

         PublicKey pk = (PublicKey) Serializer.unserialize(pb);

         Signature sig2=Signature.getInstance(“MD5WithRSA”);

         sig2.initVerify(pk);

         sig2.update(sign.getBytes(“UTF-8”));

         System.out.println(“验签结果是:”+sig2.verify(Base64Utils.decode(signData)));


}


public static void main(String[] args) {


try {


GenX509Cert gcert = new GenX509Cert();


String data = “adowdn@#&kajdk”;


Map<String, String> map = gcert.createCA(“133456”, “小科”, “e:”,


“123456”, “10.26.27.28”);


System.out.println(map.get(“code”) + “\t” + map.get(“msg”));


Map<String, String> map1 = gcert.getCertMessage(“e:/133456.pfx”,


“123456”);


for (Entry<String, String> e : map1.entrySet()) {


System.out.println(e.getKey() + “–>” + e.getValue());


}


Map<String, String> map2 = gcert.signData(“e:/133456.pfx”,


“123456”, data);


for (Entry<String, String> e : map2.entrySet()) {


System.out.println(e.getKey() + “–>” + e.getValue());


}


gcert.verify(map1.get(“cert”), data, map2.get(“sign”));


} catch (Exception e) {


e.printStackTrace();


}


}

}

package com.zrsf.cert;

import java.io.IOException;

import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;

public class Base64Utils {

/**
* 解码
* @param requestString
* @return
* @throws IOException
*/
public static byte[] decode(String requestString) throws IOException{

return new BASE64Decoder().decodeBuffer(requestString);
}

/*
* 编码
*/
public static String encode(byte[] bytes) throws IOException{

BASE64Encoder enc = new BASE64Encoder();
String encStr =enc.encode(bytes);
return encStr;
}

}

package com.zrsf.cert;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

/**
 * 
* @ClassName Serializer
 */
public final class Serializer
{

    /**
     * 序列化。
     * @param object 需要序列化的对象。
     * @return 字节数组。
     */
    public static final byte[] serialize(Object object)
    {

        ObjectOutputStream oos = null;
        ByteArrayOutputStream baos = null;
        try
        {

            baos = new ByteArrayOutputStream();
            oos = new ObjectOutputStream(baos);
            oos.writeObject(object);
            return baos.toByteArray();
        }
        catch(Exception ex)
        {

            System.err.println(“序列化对象失败”);
        }
        finally
        {

            if(oos != null)
            {

                try {

                    oos.close();
                }catch (IOException e) {

                    e.printStackTrace();
                }
            }
            if(baos != null)
            {

                try {

                    baos.close();
                }catch (IOException e) {

                    e.printStackTrace();
                }
            }
        }
        return null;
    }

    /**
     * 反序列化。
     * @param bytes 字节数组。
     * @return 反序列化后的对象。
     */
    public static final Object unserialize(byte[] bytes)
    {

        ByteArrayInputStream bais = null;
        ObjectInputStream ois = null;
        try
        {

            bais = new ByteArrayInputStream(bytes);
            ois = new ObjectInputStream(bais);
            return ois.readObject();
        }
        catch(Exception ex)
        {

        System.err.println(“反序列化对象失败”);
        }
        finally
        {

            if(ois != null)
            {

                try {

                    ois.close();
                }catch (IOException e) {

                    e.printStackTrace();
                }
            }
            if(bais != null)
            {

                try {

                    bais.close();
                }catch (IOException e) {

                    e.printStackTrace();
                }
            }
        }
        return null;
    }
}

package com.zrsf.cert;

import java.security.SecureRandom;

public class Util {

public static String rootCA = “RootCA”;
public static String certCA = “client”;

/**
* 生成三位随机数
* @return
*/
public static String getRandomNum(){

SecureRandom sr = new SecureRandom();
return “”+sr.nextInt(10)+sr.nextInt(10)+sr.nextInt(10);
}

/**
     * 验证ip是否合法
     * @param ip ip地址
     * @return ip合法返回true,否则返回false
     */
    public static boolean ipCheck(String ip) {

        if (ip != null && !ip.isEmpty()) {

            String regex = “^(25[0-5]|2[0-4]\\d|1\\d{2}|[1-9]\\d|[1-9])\\.” +
            “(25[0-5]|2[0-4]\\d|1\\d{2}|[1-9]\\d|\\d)\\.” +
            “(25[0-5]|2[0-4]\\d|1\\d{2}|[1-9]\\d|\\d)\\.” +
            “(25[0-5]|2[0-4]\\d|1\\d{2}|[1-9]\\d|[1-9])$”;
            if (ip.matches(regex)) {

                return true;
            } else {

                return false;
            }
        }
        return false;
    }
    /**
     * 得到ip的数字,不足三位的在后面补0,调用ipCheck方法之后再调用此方法
     * @param ip
     * @return
     */
    public static String getIpNum(String ip){

    StringBuffer sb = new StringBuffer();
    String len[] = ip.split(“\\.”);
    for(int i = 0;i<len.length;i++){

    String s = len[i];
    if(s.length()==3){

    sb.append(s);
    }else if(s.length()==2){

    sb.append(s).append(“0”);
    }else if(s.length()==1){

    sb.append(s).append(“00”);
    }
    }
    return sb.toString();
    }
    

}

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