OkHttpUtils: javax.net.ssl.SSLProtocolException: SSL handshake aborted: ssl=0xb8f02e68: Failure in S
1. 问题
碰到这个问题是我们公司用的是https，证书是赛门铁克的证书是tls1.2，然后我用的是okhttp，然后在android5.0以上没问题，请求都是可以的，但是在android5.0以下，连登陆都登不进，也不闪退，点击登陆没反应，然后报如上的异常，后面各种查资料，终于找到靠谱的，其中很多人其实都不知道，在瞎说。最权威的解释在这里 httpsTLS，真心感谢这位博主。
2. 原因
其实导致出现这样的原因是，后台使用的证书TLS版本过高，如果后台原因使用低版本的tls比如1.0则我们移动端这边不用改，但是估计不现实，所以对于android5.0以下的我们要手动打开tls1.1或者tls1.2的支持，因为他们是默认关闭的。只有android5.0以上才是默认打开的。
3. 解决
再说一遍，我使用的是okhttp，所以其他网络请求框架怎样解决我也没查到。根据上面那位大神的博文，创建HttpUtil类，注意okhttp一般都有自己的HttpUtils，所以这里要注意，同时看好导包种类，继承SSLSocketFactory写出自己的Tls12SocketFactory.。代码如下
package com.wly_android.frame;
import java.io.IOException;
import java.io.InputStream;
import java.security.KeyManagementException;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.UnrecoverableKeyException;
import java.security.cert.CertificateException;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.KeyManager;
import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
import javax.net.ssl.TrustManagerFactory;
import javax.net.ssl.X509TrustManager;
/**
* Created by ${GuoZhaoHui} on 2016/12/30.
* Abstract:
*/
public class HttpsUtil {
public static class SSLParams
{
public SSLSocketFactory sSLSocketFactory;
public X509TrustManager trustManager;
}
public static SSLParams getSslSocketFactory(InputStream[] certificates, InputStream bksFile, String password)
{
SSLParams sslParams = new SSLParams();
try
{
TrustManager[] trustManagers = prepareTrustManager(certificates);
KeyManager[] keyManagers = prepareKeyManager(bksFile, password);
SSLContext sslContext = SSLContext.getInstance("TLS");
X509TrustManager trustManager = null;
if (trustManagers != null)
{
trustManager = new MyTrustManager(chooseTrustManager(trustManagers));
} else
{
trustManager = new UnSafeTrustManager();
}
sslContext.init(keyManagers, new TrustManager[]{trustManager},null);
sslParams.sSLSocketFactory = sslContext.getSocketFactory();
sslParams.trustManager = trustManager;
return sslParams;
} catch (NoSuchAlgorithmException e)
{
throw new AssertionError(e);
} catch (KeyManagementException e)
{
throw new AssertionError(e);
} catch (KeyStoreException e)
{
throw new AssertionError(e);
}
}
private class UnSafeHostnameVerifier implements HostnameVerifier
{
@Override
public boolean verify(String hostname, SSLSession session)
{
return true;
}
}
public static class UnSafeTrustManager implements X509TrustManager
{
@Override
public void checkClientTrusted(X509Certificate[] chain, String authType)
throws CertificateException
{
}
@Override
public void checkServerTrusted(X509Certificate[] chain, String authType)
throws CertificateException
{
}
@Override
public X509Certificate[] getAcceptedIssuers()
{
return new java.security.cert.X509Certificate[]{};
}
}
private static TrustManager[] prepareTrustManager(InputStream... certificates)
{
if (certificates == null || certificates.length <= 0) return null;
try
{
CertificateFactory certificateFactory = CertificateFactory.getInstance("X.509");
KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());
keyStore.load(null);
int index = 0;
for (InputStream certificate : certificates)
{
String certificateAlias = Integer.toString(index++);
keyStore.setCertificateEntry(certificateAlias, certificateFactory.generateCertificate(certificate));
try
{
if (certificate != null)
certificate.close();
} catch (IOException e)
{
}
}
TrustManagerFactory trustManagerFactory = null;
trustManagerFactory = TrustManagerFactory.
getInstance(TrustManagerFactory.getDefaultAlgorithm());
trustManagerFactory.init(keyStore);
TrustManager[] trustManagers = trustManagerFactory.getTrustManagers();
return trustManagers;
} catch (NoSuchAlgorithmException e)
{
e.printStackTrace();
} catch (CertificateException e)
{
e.printStackTrace();
} catch (KeyStoreException e)
{
e.printStackTrace();
} catch (Exception e)
{
e.printStackTrace();
}
return null;
}
private static KeyManager[] prepareKeyManager(InputStream bksFile, String password)
{
try
{
if (bksFile == null || password == null) return null;
KeyStore clientKeyStore = KeyStore.getInstance("BKS");
clientKeyStore.load(bksFile, password.toCharArray());
KeyManagerFactory keyManagerFactory = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
keyManagerFactory.init(clientKeyStore, password.toCharArray());
return keyManagerFactory.getKeyManagers();
} catch (KeyStoreException e)
{
e.printStackTrace();
} catch (NoSuchAlgorithmException e)
{
e.printStackTrace();
} catch (UnrecoverableKeyException e)
{
e.printStackTrace();
} catch (CertificateException e)
{
e.printStackTrace();
} catch (IOException e)
{
e.printStackTrace();
} catch (Exception e)
{
e.printStackTrace();
}
return null;
}
private static X509TrustManager chooseTrustManager(TrustManager[] trustManagers)
{
for (TrustManager trustManager : trustManagers)
{
if (trustManager instanceof X509TrustManager)
{
return (X509TrustManager) trustManager;
}
}
return null;
}
private static class MyTrustManager implements X509TrustManager
{
private X509TrustManager defaultTrustManager;
private X509TrustManager localTrustManager;
public MyTrustManager(X509TrustManager localTrustManager) throws NoSuchAlgorithmException, KeyStoreException
{
TrustManagerFactory var4 = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
var4.init((KeyStore) null);
defaultTrustManager = chooseTrustManager(var4.getTrustManagers());
this.localTrustManager = localTrustManager;
}
@Override
public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException
{
}
@Override
public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException
{
try
{
defaultTrustManager.checkServerTrusted(chain, authType);
} catch (CertificateException ce)
{
localTrustManager.checkServerTrusted(chain, authType);
}
}
@Override
public X509Certificate[] getAcceptedIssuers()
{
return new X509Certificate[0];
}
}
}
package com.wly_android.frame;
import java.io.IOException;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;
/**
* Created by ${GuoZhaoHui} on 2016/12/30.
* Abstract:
*/
public class Tls12SocketFactory extends SSLSocketFactory{
private static final String[] TLS_SUPPORT_VERSION = {"TLSv1.1", "TLSv1.2"};
final SSLSocketFactory delegate;
public Tls12SocketFactory(SSLSocketFactory base) {
this.delegate = base;
}
@Override
public String[] getDefaultCipherSuites() {
return delegate.getDefaultCipherSuites();
}
@Override
public String[] getSupportedCipherSuites() {
return delegate.getSupportedCipherSuites();
}
@Override
public Socket createSocket(Socket s, String host, int port, boolean autoClose) throws IOException {
return patch(delegate.createSocket(s, host, port, autoClose));
}
@Override
public Socket createSocket(String host, int port) throws IOException, UnknownHostException {
return patch(delegate.createSocket(host, port));
}
@Override
public Socket createSocket(String host, int port, InetAddress localHost, int localPort) throws IOException, UnknownHostException {
return patch(delegate.createSocket(host, port, localHost, localPort));
}
@Override
public Socket createSocket(InetAddress host, int port) throws IOException {
return patch(delegate.createSocket(host, port));
}
@Override
public Socket createSocket(InetAddress address, int port, InetAddress localAddress, int localPort) throws IOException {
return patch(delegate.createSocket(address, port, localAddress, localPort));
}
private Socket patch(Socket s) {
if (s instanceof SSLSocket) {
((SSLSocket) s).setEnabledProtocols(TLS_SUPPORT_VERSION);
}
return s;
}
}
然后在okhttp初始化时（一般在MyApplication），使用我们新写的类。如图，这是我项目中的代码。
4. 道友留步
最后再次感谢这位大神 点击打开链接