java 证书体系及应用,自已做https证书

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原文:

https://blog.csdn.net/wjq008/article/details/49071857

接下来我们将域名www.zlex.org定位到本机上。打开C:\Windows\System32\drivers\etc\hosts文件，将www.zlex.org绑定在本机上。在文件末尾追加127.0.0.1 www.zlex.org。现在通过地址栏访问http://www.zlex.org，或者通过ping命令，如果能够定位到本机，域名映射就搞定了。
现在，配置tomcat。先将zlex.keystore拷贝到tomcat的conf目录下，然后配置server.xml。将如下内容加入配置文件

[xml] view plain copy
<Connector
SSLEnabled="true"
URIEncoding="UTF-8"
clientAuth="false"
keystoreFile="conf/zlex.keystore"
keystorePass="123456"
maxThreads="150"
port="443"
protocol="HTTP/1.1"
scheme="https"
secure="true"
sslProtocol="TLS" />

注意clientAuth="false"测试阶段，置为false，正式使用时建议使用true。现在启动tomcat，访问https://www.zlex.org/。
显然，证书未能通过认证，这个时候你可以选择安装证书（上文中的zlex.cer文件就是证书），作为受信任的根证书颁发机构导入，再次重启浏览器（IE，其他浏览器对于域名www.zlex.org不支持本地方式访问），访问https://www.zlex.org/，你会看到地址栏中会有个小锁，就说明安装成功。所有的浏览器联网操作已经在RSA加密解密系统的保护之下了。但似乎我们感受不到。
这个时候很多人开始怀疑，如果我们要手工做一个这样的https的访问是不是需要把浏览器的这些个功能都实现呢？不需要！

接着上篇内容，给出如下代码实现：

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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;

import javax.net.ssl.HttpsURLConnection;

import javax.net.ssl.KeyManagerFactory;

import javax.net.ssl.SSLContext;

import javax.net.ssl.SSLSocketFactory;

import javax.net.ssl.TrustManagerFactory;

/**

* 证书组件

* @author 梁栋

* @version 1.0

* @since 1.0

public abstract class CertificateCoder extends Coder {

/**

* Java密钥库(Java Key Store，JKS)KEY_STORE

public static final String KEY_STORE = "JKS";

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

public static final String SunX509 = "SunX509";

public static final String SSL = "SSL";

/**

* 由KeyStore获得私钥

* @param keyStorePath

* @param alias

* @param password

* @return

* @throws Exception

private static PrivateKey getPrivateKey(String keyStorePath, String alias,

String password) throws Exception {

KeyStore ks = getKeyStore(keyStorePath, password);

PrivateKey key = (PrivateKey) ks.getKey(alias, password.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 alias

* @param password

* @return

* @throws Exception

private static Certificate getCertificate(String keyStorePath,

String alias, String password) throws Exception {

KeyStore ks = getKeyStore(keyStorePath, password);

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 alias

* @param password

* @return

* @throws Exception

public static byte[] encryptByPrivateKey(byte[] data, String keyStorePath,

String alias, String password) throws Exception {

// 取得私钥

PrivateKey privateKey = getPrivateKey(keyStorePath, alias, password);

// 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 password

* @return

* @throws Exception

public static byte[] decryptByPrivateKey(byte[] data, String keyStorePath,

String alias, String password) throws Exception {

// 取得私钥

PrivateKey privateKey = getPrivateKey(keyStorePath, alias, password);

// 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 password

* @return

* @throws Exception

public static String sign(byte[] sign, String keyStorePath, String alias,

String password) throws Exception {

// 获得证书

X509Certificate x509Certificate = (X509Certificate) getCertificate(

keyStorePath, alias, password);

// 获取私钥

KeyStore ks = getKeyStore(keyStorePath, password);

// 取得私钥

PrivateKey privateKey = (PrivateKey) ks.getKey(alias, password

.toCharArray());

// 构建签名

Signature signature = Signature.getInstance(x509Certificate

.getSigAlgName());

signature.initSign(privateKey);

signature.update(sign);

return encryptBASE64(signature.sign());

}

/**

* 验证签名

* @param data

* @param sign

* @param certificatePath

* @return

* @throws Exception

public static boolean verify(byte[] data, String 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(decryptBASE64(sign));

}

/**

* 验证Certificate

* @param keyStorePath

* @param alias

* @param password

* @return

public static boolean verifyCertificate(Date date, String keyStorePath,

String alias, String password) {

boolean status = true;

try {

Certificate certificate = getCertificate(keyStorePath, alias,

password);

status = verifyCertificate(date, certificate);

} catch (Exception e) {

status = false;

}

return status;

}

/**

* 验证Certificate

* @param keyStorePath

* @param alias

* @param password

* @return

public static boolean verifyCertificate(String keyStorePath, String alias,

String password) {

return verifyCertificate(new Date(), keyStorePath, alias, password);

}

/**

* 获得SSLSocektFactory

* @param password

* 密码

* @param keyStorePath

* 密钥库路径

* @param trustKeyStorePath

* 信任库路径

* @return

* @throws Exception

private static SSLSocketFactory getSSLSocketFactory(String password,

String keyStorePath, String trustKeyStorePath) throws Exception {

// 初始化密钥库

KeyManagerFactory keyManagerFactory = KeyManagerFactory

.getInstance(SunX509);

KeyStore keyStore = getKeyStore(keyStorePath, password);

keyManagerFactory.init(keyStore, password.toCharArray());

// 初始化信任库

TrustManagerFactory trustManagerFactory = TrustManagerFactory

.getInstance(SunX509);

KeyStore trustkeyStore = getKeyStore(trustKeyStorePath, password);

trustManagerFactory.init(trustkeyStore);

// 初始化SSL上下文

SSLContext ctx = SSLContext.getInstance(SSL);

ctx.init(keyManagerFactory.getKeyManagers(), trustManagerFactory

.getTrustManagers(), null);

SSLSocketFactory sf = ctx.getSocketFactory();

return sf;

}

/**

* 为HttpsURLConnection配置SSLSocketFactory

* @param conn

* HttpsURLConnection

* @param password

* 密码

* @param keyStorePath

* 密钥库路径

* @param trustKeyStorePath

* 信任库路径

* @throws Exception

public static void configSSLSocketFactory(HttpsURLConnection conn,

String password, String keyStorePath, String trustKeyStorePath)

throws Exception {

conn.setSSLSocketFactory(getSSLSocketFactory(password, keyStorePath,

trustKeyStorePath));

}

增加了configSSLSocketFactory方法供外界调用，该方法为 HttpsURLConnection配置了SSLSocketFactory。当HttpsURLConnection配置了 SSLSocketFactory后，我们就可以通过HttpsURLConnection的getInputStream、 getOutputStream，像往常使用HttpURLConnection做操作了。尤其要说明一点，未配置SSLSocketFactory 前，HttpsURLConnection的getContentLength()获得值永远都是-1。

给出相应测试类：

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import static org.junit.Assert.*;

import java.io.DataInputStream;

import java.io.InputStream;

import java.net.URL;

import javax.net.ssl.HttpsURLConnection;

import org.junit.Test;

/**

* @author 梁栋

* @version 1.0

* @since 1.0

public class CertificateCoderTest {

private String password = "123456";

private String alias = "www.zlex.org";

private String certificatePath = "d:/zlex.cer";

private String keyStorePath = "d:/zlex.keystore";

private String clientKeyStorePath = "d:/zlex-client.keystore";

private String clientPassword = "654321";

@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, password);

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, alias, password);

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

String sign = CertificateCoder.sign(encodedData, keyStorePath, alias,

password);

System.err.println("签名:\r" + sign);

// 验证签名

boolean status = CertificateCoder.verify(encodedData, sign,

certificatePath);

System.err.println("状态:\r" + status);

assertTrue(status);

}

@Test

public void testHttps() throws Exception {

URL url = new URL("https://www.zlex.org/examples/");

HttpsURLConnection conn = (HttpsURLConnection) url.openConnection();

conn.setDoInput(true);

conn.setDoOutput(true);

CertificateCoder.configSSLSocketFactory(conn, clientPassword,

clientKeyStorePath, clientKeyStorePath);

InputStream is = conn.getInputStream();

int length = conn.getContentLength();

DataInputStream dis = new DataInputStream(is);

byte[] data = new byte[length];

dis.readFully(data);

dis.close();

System.err.println(new String(data));

conn.disconnect();

}

注意testHttps方法，几乎和我们往常做HTTP访问没有差别，我们来看控制台输出：

<!--
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD><TITLE>Apache Tomcat Examples</TITLE>
<META http-equiv=Content-Type content="text/html">
</HEAD>
<BODY>
<P>
<H3>Apache Tomcat Examples</H3>
<P></P>
<ul>
<li><a href="http://javaeye.shaduwang.com/?snowolf/blog/servlets">Servlets examples</a></li>
<li><a href="http://javaeye.shaduwang.com/?snowolf/blog/jsp">JSP Examples</a></li>
</ul>
</BODY></HTML>

通过浏览器直接访问https://www.zlex.org/examples/你也会获得上述内容。也就是说应用甲方作为服务器构建tomcat服务，乙方可以通过上述方式访问甲方受保护的SSL应用，并且不需要考虑具体的加密解密问题。甲乙双方可以经过相应配置，通过双方的tomcat配置有效的SSL服务，简化上述代码实现，完全通过证书配置完成SSL双向认证！

我们使用自签名证书完成了认证。接下来，我们使用第三方CA签名机构完成证书签名。
这里我们使用thawte提供的测试用21天免费ca证书。
1.要在该网站上注明你的域名，这里使用www.zlex.org作为测试用域名（请勿使用该域名作为你的域名地址，该域名受法律保护！请使用其他非注册域名！）。
2.如果域名有效，你会收到邮件要求你访问https://www.thawte.com/cgi/server/try.exe获得ca证书。
3.复述密钥库的创建。

keytool -genkey -validity 36000 -alias www.zlex.org -keyalg RSA -keystore d:\zlex.keystore

在这里我使用的密码为 123456

控制台输出：

输入keystore密码：
再次输入新密码:
您的名字与姓氏是什么？
[Unknown]：  www.zlex.org
您的组织单位名称是什么？
[Unknown]：  zlex
您的组织名称是什么？
[Unknown]：  zlex
您所在的城市或区域名称是什么？
[Unknown]：  BJ
您所在的州或省份名称是什么？
[Unknown]：  BJ
该单位的两字母国家代码是什么
[Unknown]：  CN
CN=www.zlex.org, OU=zlex, O=zlex, L=BJ, ST=BJ, C=CN 正确吗？
[否]：  Y

输入<tomcat>的主密码
（如果和 keystore 密码相同，按回车）：
再次输入新密码:

4.通过如下命令，从zlex.keystore中导出CA证书申请。

keytool -certreq -alias www.zlex.org -file d:\zlex.csr -keystore d:\zlex.keystore -v
你会获得zlex.csr文件，可以用记事本打开，内容如下格式：

[text] view plain copy
-----BEGIN NEW CERTIFICATE REQUEST-----
MIIBnDCCAQUCAQAwXDELMAkGA1UEBhMCQ04xCzAJBgNVBAgTAkJKMQswCQYDVQQHEwJCSjENMAsG
A1UEChMEemxleDENMAsGA1UECxMEemxleDEVMBMGA1UEAxMMd3d3LnpsZXgub3JnMIGfMA0GCSqG
SIb3DQEBAQUAA4GNADCBiQKBgQCR6DXU9Mp+mCKO7cv9JPsj0n1Ec/GpM09qvhpgX3FNad/ZWSDc
vU77YXZSoF9hQp3w1LC+eeKgd2MlVpXTvbVwBNVd2HiQPp37ic6BUUjSaX8LHtCl7l0BIEye9qQ2
j8G0kak7e8ZA0s7nb3Ymq/K8BV7v0MQIdhIc1bifK9ZDewIDAQABoAAwDQYJKoZIhvcNAQEFBQAD
gYEAMA1r2fbZPtNx37U9TRwadCH2TZZecwKJS/hskNm6ryPKIAp9APWwAyj8WJHRBz5SpZM4zmYO
oMCI8BcnY2A4JP+R7/SwXTdH/xcg7NVghd9A2SCgqMpF7KMfc5dE3iygdiPu+UhY200Dvpjx8gmJ
1UbH3+nqMUyCrZgURFslOUY=
-----END NEW CERTIFICATE REQUEST-----

5.将上述文件内容拷贝到https://www.thawte.com/cgi/server/try.exe中，点击next，获得回应内容，这里是p7b格式。
内容如下：

[text] view plain copy
-----BEGIN PKCS7-----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-----END PKCS7-----
将其存储为zlex.p7b
6.将由CA签发的证书导入密钥库。

keytool -import -trustcacerts -alias www.zlex.org -file d:\zlex.p7b -keystore d:\zlex.keystore -v

在这里我使用的密码为 123456

控制台输出：

输入keystore密码：

回复中的最高级认证：

所有者:CN=Thawte Test CA Root, OU=TEST TEST TEST, O=Thawte Certification, ST=FOR
TESTING PURPOSES ONLY, C=ZA
签发人:CN=Thawte Test CA Root, OU=TEST TEST TEST, O=Thawte Certification, ST=FOR
TESTING PURPOSES ONLY, C=ZA
序列号:0
有效期: Thu Aug 01 08:00:00 CST 1996 至Fri Jan 01 05:59:59 CST 2021
证书指纹:
MD5:5E:E0:0E:1D:17:B7:CA:A5:7D:36:D6:02:DF:4D:26:A4
SHA1:39:C6:9D:27:AF:DC:EB:47:D6:33:36:6A:B2:05:F1:47:A9:B4:DA:EA
签名算法名称:MD5withRSA
版本: 3

扩展:

#1: ObjectId: 2.5.29.19 Criticality=true
BasicConstraints:[
CA:true
PathLen:2147483647
]

... 是不可信的。还是要安装回复？ [否]： Y
认证回复已安装在 keystore中
[正在存储 d:\zlex.keystore]

7.域名定位
将域名www.zlex.org定位到本机上。打开C:\Windows\System32\drivers\etc\hosts文件，将 www.zlex.org绑定在本机上。在文件末尾追加127.0.0.1 www.zlex.org。现在通过地址栏访问http://www.zlex.org，或者通过ping命令，如果能够定位到本机，域名映射就搞定了。

8.配置server.xml

[xml] view plain copy
<Connector
keystoreFile="conf/zlex.keystore"
keystorePass="123456"
truststoreFile="conf/zlex.keystore"
truststorePass="123456"
SSLEnabled="true"
URIEncoding="UTF-8"
clientAuth="false"
maxThreads="150"
port="443"
protocol="HTTP/1.1"
scheme="https"
secure="true"
sslProtocol="TLS" />

将文件zlex.keystore拷贝到tomcat的conf目录下，重新启动tomcat。访问https://www.zlex.org/，我们发现联网有些迟钝。大约5秒钟后，网页正常显示，同时有如下图所示：

浏览器验证了该CA机构的有效性。

打开证书，如下图所示：

调整测试类：

100

import static org.junit.Assert.*;

import java.io.DataInputStream;

import java.io.InputStream;

import java.net.URL;

import javax.net.ssl.HttpsURLConnection;

import org.junit.Test;

/**

* @author 梁栋

* @version 1.0

* @since 1.0

public class CertificateCoderTest {

private String password = "123456";

private String alias = "www.zlex.org";

private String certificatePath = "d:/zlex.cer";

private String keyStorePath = "d:/zlex.keystore";

@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, password);

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, alias, password);

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

String sign = CertificateCoder.sign(encodedData, keyStorePath, alias,

password);

System.err.println("签名:\r" + sign);

// 验证签名

boolean status = CertificateCoder.verify(encodedData, sign,

certificatePath);

System.err.println("状态:\r" + status);

assertTrue(status);

}

@Test

public void testHttps() throws Exception {

URL url = new URL("https://www.zlex.org/examples/");

HttpsURLConnection conn = (HttpsURLConnection) url.openConnection();

conn.setDoInput(true);

conn.setDoOutput(true);

CertificateCoder.configSSLSocketFactory(conn, password, keyStorePath,

keyStorePath);

InputStream is = conn.getInputStream();

int length = conn.getContentLength();

DataInputStream dis = new DataInputStream(is);

byte[] data = new byte[length];

dis.readFully(data);

dis.close();

conn.disconnect();

System.err.println(new String(data));

}

再次执行，验证通过！
由此，我们了基于SSL协议的认证过程。测试类的testHttps方法模拟了一次浏览器的HTTPS访问。
---------------------
作者：wjq008
来源：CSDN
原文：https://blog.csdn.net/wjq008/article/details/49071857
版权声明：本文为博主原创文章，转载请附上博文链接！