Java Android SSL 双向认证代码

源代码下载： https://github.com/yuxiaohui78/androidHttps
SSL双向认证tomcat实现，参考文章如下，其中是使用HttpClient实现的SSL通信。 http://blog.csdn.net/yuxiaohui78/article/details/41975915
下面代码使用的是HttpsUrlConnection 实现的SSL 通信。

[java]
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package com.example.ssl.util;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.net.Socket;
import java.security.KeyManagementException;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.Principal;
import java.security.PrivateKey;
import java.security.UnrecoverableKeyException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.Enumeration;

import javax.net.ssl.KeyManager;
import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
import javax.net.ssl.TrustManagerFactory;
import javax.net.ssl.X509KeyManager;

import android.content.Context;

public class TwoWaysAuthenticationSSLSocketFactory {

private static final String KEY_STORE_TYPE_BKS = "bks";
private static final String KEY_STORE_TYPE_P12 = "PKCS12";
private static final String keyStoreFileName = "client.key.p12";
private static final String keyStorePassword = "123456";
private static final String trustStoreFileName = "client.truststore";
private static final String trustStorePassword = "123456";
private static final String alias = null;//"client";
private static Context pContext = null;

public static SSLSocketFactory getSSLSocketFactory (Context ctx)
throws NoSuchAlgorithmException, KeyManagementException {

pContext = ctx;

SSLContext context = SSLContext.getInstance("TLS");
//TODO investigate: could also be "SSLContext context = SSLContext.getInstance("TLS");" Why?
try{
//create key and trust managers
KeyManager[] keyManagers = createKeyManagers(keyStoreFileName, keyStorePassword, alias);
TrustManager[] trustManagers = createTrustManagers(trustStoreFileName, trustStorePassword);
context.init(keyManagers, trustManagers, null);

} catch (KeyStoreException e) {
e.printStackTrace();
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
} catch (CertificateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (UnrecoverableKeyException e) {
e.printStackTrace();
} catch (KeyManagementException e) {
e.printStackTrace();
}

SSLSocketFactory socketFactory = context.getSocketFactory();
return socketFactory;
}
private static KeyManager[] createKeyManagers(String keyStoreFileName, String keyStorePassword, String alias)
throws CertificateException, IOException, KeyStoreException, NoSuchAlgorithmException, UnrecoverableKeyException {
InputStream inputStream = pContext.getResources().getAssets().open(keyStoreFileName);
KeyStore keyStore = KeyStore.getInstance(KEY_STORE_TYPE_P12);
keyStore.load(inputStream, keyStorePassword.toCharArray());

printKeystoreInfo(keyStore);//for debug

KeyManager[] managers;
if (alias != null) {
managers =
new KeyManager[] {
new TwoWaysAuthenticationSSLSocketFactory().new AliasKeyManager(keyStore, alias, keyStorePassword)};
} else {
KeyManagerFactory keyManagerFactory =
KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
keyManagerFactory.init(keyStore, keyStorePassword == null ? null : keyStorePassword.toCharArray());
managers = keyManagerFactory.getKeyManagers();
}
return managers;
}

private static TrustManager[] createTrustManagers(String trustStoreFileName, String trustStorePassword)
throws KeyStoreException, NoSuchAlgorithmException, CertificateException, IOException {
InputStream inputStream = pContext.getResources().getAssets().open(trustStoreFileName);
KeyStore trustStore = KeyStore.getInstance(KEY_STORE_TYPE_BKS);
trustStore.load(inputStream, trustStorePassword.toCharArray());

printKeystoreInfo(trustStore);//for debug

TrustManagerFactory trustManagerFactory =
TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
trustManagerFactory.init(trustStore);
return trustManagerFactory.getTrustManagers();
}

private static void printKeystoreInfo(KeyStore keystore) throws KeyStoreException {
System.out.println("Provider : " + keystore.getProvider().getName());
System.out.println("Type : " + keystore.getType());
System.out.println("Size : " + keystore.size());

Enumeration en = keystore.aliases();
while (en.hasMoreElements()) {
System.out.println("Alias: " + en.nextElement());
}
}

private class AliasKeyManager implements X509KeyManager {

private KeyStore _ks;
private String _alias;
private String _password;

public AliasKeyManager(KeyStore ks, String alias, String password) {
_ks = ks;
_alias = alias;
_password = password;
}

public String chooseClientAlias(String[] str, Principal[] principal, Socket socket) {
return _alias;
}

public String chooseServerAlias(String str, Principal[] principal, Socket socket) {
return _alias;
}

public X509Certificate[] getCertificateChain(String alias) {
try {
java.security.cert.Certificate[] certificates = this._ks.getCertificateChain(alias);
if(certificates == null){throw new FileNotFoundException("no certificate found for alias:" + alias);}
X509Certificate[] x509Certificates = new X509Certificate[certificates.length];
System.arraycopy(certificates, 0, x509Certificates, 0, certificates.length);
return x509Certificates;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}

public String[] getClientAliases(String str, Principal[] principal) {
return new String[] { _alias };
}

public PrivateKey getPrivateKey(String alias) {
try {
return (PrivateKey) _ks.getKey(alias, _password == null ? null : _password.toCharArray());
} catch (Exception e) {
e.printStackTrace();
return null;
}
}

public String[] getServerAliases(String str, Principal[] principal) {
return new String[] { _alias };
}
}
}

调用部分：

[java]
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private void runHttpsRequestWithHttpsURLConnection(){
AsyncTask <String, Void, String> testTask = new AsyncTask<String, Void, String>() {
@Override
protected String doInBackground(String... params) {
String result = "";
HttpsURLConnection conn = null;
try {
URL url = new URL(HTTPS_URL);
conn = (HttpsURLConnection) url.openConnection();
conn.setSSLSocketFactory(TwoWaysAuthenticationSSLSocketFactory.getSSLSocketFactory(MainActivity.this));
conn.connect();
result = parseSendMessageResponse(conn.getInputStream());
Log.e("HttpsURLConnection Response=====>", result);
return result;
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}catch (NoSuchAlgorithmException e){
e.printStackTrace();
}catch (KeyManagementException e){
e.printStackTrace();
}catch (Exception e){
e.printStackTrace();
}
return null;
}

@Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
showHttpPage (result);
}
};

testTask.execute();
}