Question

根据Android SSLSocket和SSLContext中的文档，API级别16+支持TLS v1.1和v1.2协议，但默认情况下不启用。 http://developer.android.com/reference/javax/net/ssl/SSLSocket.html http://developer.android.com/reference/javax/net/ssl/SSLContext.html

如何在运行Android 4.1或更高版本（但低于5.0）的设备上启用它？

我尝试创建自定义SSLSocketFactory，在创建Socket时启用所有支持的协议，然后将我的自定义实现用作：

HttpsURLConnection.setDefaultSSLSocketFactory（new MySSLSocketFactory（））;

public class MySSLSocketFactory extends SSLSocketFactory {

        private SSLContext sc;
        private SSLSocketFactory ssf;  

        public MySSLSocketFactory() {
            try {
                sc = SSLContext.getInstance("TLS");
                sc.init(null, null, null);
                ssf = sc.getSocketFactory();

            } catch (NoSuchAlgorithmException e) {
                e.printStackTrace();
            } catch (KeyManagementException e) {
                e.printStackTrace();
            }  
        }

        @Override
        public Socket createSocket(Socket s, String host, int port, boolean autoClose)
                throws IOException {
            SSLSocket ss = (SSLSocket) ssf.createSocket(s, host, port, autoClose);
            ss.setEnabledProtocols(ss.getSupportedProtocols());
            ss.setEnabledCipherSuites(ss.getSupportedCipherSuites());
            return ss;
        }

        @Override
        public String[] getDefaultCipherSuites() {
            return ssf.getDefaultCipherSuites();
        }

        @Override
        public String[] getSupportedCipherSuites() {
            return ssf.getSupportedCipherSuites();
        }

        @Override
        public Socket createSocket(String host, int port) throws IOException, UnknownHostException {
            SSLSocket ss = (SSLSocket) ssf.createSocket(host, port);
            ss.setEnabledProtocols(ss.getSupportedProtocols());
            ss.setEnabledCipherSuites(ss.getSupportedCipherSuites());
            return ss;
        }

        @Override
        public Socket createSocket(InetAddress host, int port) throws IOException {
            SSLSocket ss = (SSLSocket) ssf.createSocket(host, port);
            ss.setEnabledProtocols(ss.getSupportedProtocols());
            ss.setEnabledCipherSuites(ss.getSupportedCipherSuites());
            return ss;
        }

        @Override
        public Socket createSocket(String host, int port, InetAddress localHost, int localPort)
                throws IOException, UnknownHostException {
            SSLSocket ss = (SSLSocket) ssf.createSocket(host, port, localHost, localPort);
            ss.setEnabledProtocols(ss.getSupportedProtocols());
            ss.setEnabledCipherSuites(ss.getSupportedCipherSuites());
            return ss;
        }

        @Override
        public Socket createSocket(InetAddress address, int port, InetAddress localAddress,
                int localPort) throws IOException {
            SSLSocket ss = (SSLSocket) ssf.createSocket(address, port, localAddress, localPort);
            ss.setEnabledProtocols(ss.getSupportedProtocols());
            ss.setEnabledCipherSuites(ss.getSupportedCipherSuites());
            return ss;
        }
    }

但在尝试与启用了仅TLS 1.2 的服务器建立连接时，它仍会出现异常。

以下是我得到的例外情况：

03-09 09：21：38.427：W / System.err（2496）：   javax.net.ssl.SSLHandshakeException：   javax.net.ssl.SSLProtocolException：SSL握手已中止：   ssl = 0xb7fa0620：SSL库失败，通常是协议错误

03-09 09：21：38.427：W / System.err（2496）：错误：14077410：SSL   例程：SSL23_GET_SERVER_HELLO：sslv3警报握手失败   （external / openssl / ssl / s23_clnt.c：741 0xa90e6990：0x00000000）

Answer 1

启用TLSv1.1和TLSv1.2的两种方法：

使用此指南： http://blog.dev-area.net/2015/08/13/android-4-1-enable-tls-1-1-and-tls-1-2/
使用此课程 https://github.com/erickok/transdroid/blob/master/app/src/main/java/org/transdroid/daemon/util/TlsSniSocketFactory.java
var x = parseFloat(attribs.length.replace(/"/g,''));

Answer 2

我按照文章http://blog.dev-area.net/2015/08/13/android-4-1-enable-tls-1-1-and-tls-1-2/中提供的指示解决了这个问题，几乎没有任何变化。

SSLContext context = SSLContext.getInstance("TLS");
context.init(null, null, null);
SSLSocketFactory noSSLv3Factory = null;
if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.KITKAT) {
    noSSLv3Factory = new TLSSocketFactory(sslContext.getSocketFactory());
} else {
    noSSLv3Factory = sslContext.getSocketFactory();
}
connection.setSSLSocketFactory(noSSLv3Factory);

这是自定义TLSSocketFactory的代码：

public static class TLSSocketFactory extends SSLSocketFactory {

    private SSLSocketFactory internalSSLSocketFactory;

    public TLSSocketFactory(SSLSocketFactory delegate) throws KeyManagementException, NoSuchAlgorithmException {
        internalSSLSocketFactory = delegate;
    }

    @Override
    public String[] getDefaultCipherSuites() {
        return internalSSLSocketFactory.getDefaultCipherSuites();
    }

    @Override
    public String[] getSupportedCipherSuites() {
        return internalSSLSocketFactory.getSupportedCipherSuites();
    }

    @Override
    public Socket createSocket(Socket s, String host, int port, boolean autoClose) throws IOException {
        return enableTLSOnSocket(internalSSLSocketFactory.createSocket(s, host, port, autoClose));
    }

    @Override
    public Socket createSocket(String host, int port) throws IOException, UnknownHostException {
        return enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port));
    }

    @Override
    public Socket createSocket(String host, int port, InetAddress localHost, int localPort) throws IOException, UnknownHostException {
        return enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port, localHost, localPort));
    }

    @Override
    public Socket createSocket(InetAddress host, int port) throws IOException {
        return enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port));
    }

    @Override
    public Socket createSocket(InetAddress address, int port, InetAddress localAddress, int localPort) throws IOException {
        return enableTLSOnSocket(internalSSLSocketFactory.createSocket(address, port, localAddress, localPort));
    }

    /*
     * Utility methods
     */

    private static Socket enableTLSOnSocket(Socket socket) {
        if (socket != null && (socket instanceof SSLSocket)
                && isTLSServerEnabled((SSLSocket) socket)) { // skip the fix if server doesn't provide there TLS version
            ((SSLSocket) socket).setEnabledProtocols(new String[]{TLS_v1_1, TLS_v1_2});
        }
        return socket;
    }

    private static boolean isTLSServerEnabled(SSLSocket sslSocket) {
        System.out.println("__prova__ :: " + sslSocket.getSupportedProtocols().toString());
        for (String protocol : sslSocket.getSupportedProtocols()) {
            if (protocol.equals(TLS_v1_1) || protocol.equals(TLS_v1_2)) {
                return true;
            }
        }
        return false;
    }
}

编辑：感谢ademar111190的kotlin实现（link）

class TLSSocketFactory constructor(
        private val internalSSLSocketFactory: SSLSocketFactory
) : SSLSocketFactory() {

    private val protocols = arrayOf("TLSv1.2", "TLSv1.1")

    override fun getDefaultCipherSuites(): Array<String> = internalSSLSocketFactory.defaultCipherSuites

    override fun getSupportedCipherSuites(): Array<String> = internalSSLSocketFactory.supportedCipherSuites

    override fun createSocket(s: Socket, host: String, port: Int, autoClose: Boolean) =
            enableTLSOnSocket(internalSSLSocketFactory.createSocket(s, host, port, autoClose))

    override fun createSocket(host: String, port: Int) =
            enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port))

    override fun createSocket(host: String, port: Int, localHost: InetAddress, localPort: Int) =
            enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port, localHost, localPort))

    override fun createSocket(host: InetAddress, port: Int) =
            enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port))

    override fun createSocket(address: InetAddress, port: Int, localAddress: InetAddress, localPort: Int) =
            enableTLSOnSocket(internalSSLSocketFactory.createSocket(address, port, localAddress, localPort))

    private fun enableTLSOnSocket(socket: Socket?) = socket?.apply {
        if (this is SSLSocket && isTLSServerEnabled(this)) {
            enabledProtocols = protocols
        }
    }

    private fun isTLSServerEnabled(sslSocket: SSLSocket) = sslSocket.supportedProtocols.any { it in protocols }

}

Answer 3

我对上述答案有一些补充它实际上是杰西威尔逊从okhttp，square here提到的黑客攻击。根据这个hack，我不得不将我的SSLSocketFactory变量重命名为

private SSLSocketFactory delegate;

这是我的 TLSSocketFactory 类

public class TLSSocketFactory extends SSLSocketFactory {

private SSLSocketFactory delegate;

public TLSSocketFactory() throws KeyManagementException, NoSuchAlgorithmException {
    SSLContext context = SSLContext.getInstance("TLS");
    context.init(null, null, null);
    delegate = context.getSocketFactory();
}

@Override
public String[] getDefaultCipherSuites() {
    return delegate.getDefaultCipherSuites();
}

@Override
public String[] getSupportedCipherSuites() {
    return delegate.getSupportedCipherSuites();
}

@Override
public Socket createSocket() throws IOException {
    return enableTLSOnSocket(delegate.createSocket());
}

@Override
public Socket createSocket(Socket s, String host, int port, boolean autoClose) throws IOException {
    return enableTLSOnSocket(delegate.createSocket(s, host, port, autoClose));
}

@Override
public Socket createSocket(String host, int port) throws IOException, UnknownHostException {
    return enableTLSOnSocket(delegate.createSocket(host, port));
}

@Override
public Socket createSocket(String host, int port, InetAddress localHost, int localPort) throws IOException, UnknownHostException {
    return enableTLSOnSocket(delegate.createSocket(host, port, localHost, localPort));
}

@Override
public Socket createSocket(InetAddress host, int port) throws IOException {
    return enableTLSOnSocket(delegate.createSocket(host, port));
}

@Override
public Socket createSocket(InetAddress address, int port, InetAddress localAddress, int localPort) throws IOException {
    return enableTLSOnSocket(delegate.createSocket(address, port, localAddress, localPort));
}

private Socket enableTLSOnSocket(Socket socket) {
    if(socket != null && (socket instanceof SSLSocket)) {
        ((SSLSocket)socket).setEnabledProtocols(new String[] {"TLSv1.1", "TLSv1.2"});
    }
    return socket;
}
}

这就是我用okhttp和改装

的方式

 OkHttpClient client=new OkHttpClient();
    try {
        client = new OkHttpClient.Builder()
                .sslSocketFactory(new TLSSocketFactory())
                .build();
    } catch (KeyManagementException e) {
        e.printStackTrace();
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    }

    Retrofit retrofit = new Retrofit.Builder()
            .baseUrl(URL)
            .client(client)
            .addConverterFactory(GsonConverterFactory.create())
            .build();

Answer 4

你应该使用

 SSLContext.getInstance("TLSv1.2");

用于特定协议版本。

发生了第二个异常，因为默认的socketFactory使用了回退SSLv3协议来实现失败。

您可以在此处使用主答案中的NoSSLFactory来抑制How to disable SSLv3 in android for HttpsUrlConnection?

此外，您应该使用所有证书（客户端和受信任的证书）初始化SSLContext

但如果不使用

，所有这些都是无用的

ProviderInstaller.installIfNeeded(getContext())

以下是有关正确使用方案https://developer.android.com/training/articles/security-gms-provider.html

的更多信息

希望它有所帮助。

Answer 5

@Inherently好奇 - 感谢发布此内容。你几乎就在那里 - 你必须在SSLContext.init（）方法中增加两个参数。

TrustManager[] trustManagers = new TrustManager[] { new TrustManagerManipulator() };
sc.init(null, trustManagers, new SecureRandom());

它将开始工作。再次非常感谢您发布此内容。我用你的代码解决了这个/我的问题。

Answer 6

正如OP所说，API级别16+支持TLS v1.1和v1.2协议，但默认情况下未启用TLS，我们只需要启用它即可。

此处的示例使用HttpsUrlConnection，而不是HttpUrlConnection。按照https://blog.dev-area.net/2015/08/13/android-4-1-enable-tls-1-1-and-tls-1-2/，我们可以创建工厂

class MyFactory extends SSLSocketFactory {

    private javax.net.ssl.SSLSocketFactory internalSSLSocketFactory;

    public MyFactory() throws KeyManagementException, NoSuchAlgorithmException {
        SSLContext context = SSLContext.getInstance("TLS");
        context.init(null, null, null);
        internalSSLSocketFactory = context.getSocketFactory();
    }

    @Override
    public String[] getDefaultCipherSuites() {
        return internalSSLSocketFactory.getDefaultCipherSuites();
    }

    @Override
    public String[] getSupportedCipherSuites() {
        return internalSSLSocketFactory.getSupportedCipherSuites();
    }

    @Override
    public Socket createSocket() throws IOException {
        return enableTLSOnSocket(internalSSLSocketFactory.createSocket());
    }

    @Override
    public Socket createSocket(Socket s, String host, int port, boolean autoClose) throws IOException {
        return enableTLSOnSocket(internalSSLSocketFactory.createSocket(s, host, port, autoClose));
    }

    @Override
    public Socket createSocket(String host, int port) throws IOException, UnknownHostException {
        return enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port));
    }

    @Override
    public Socket createSocket(String host, int port, InetAddress localHost, int localPort) throws IOException, UnknownHostException {
        return enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port, localHost, localPort));
    }

    @Override
    public Socket createSocket(InetAddress host, int port) throws IOException {
        return enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port));
    }

    @Override
    public Socket createSocket(InetAddress address, int port, InetAddress localAddress, int localPort) throws IOException {
        return enableTLSOnSocket(internalSSLSocketFactory.createSocket(address, port, localAddress, localPort));
    }

    private Socket enableTLSOnSocket(Socket socket) {
        if(socket != null && (socket instanceof SSLSocket)) {
            ((SSLSocket)socket).setEnabledProtocols(new String[] {"TLSv1.1", "TLSv1.2"});
        }
        return socket;
    }
}

无论使用哪种网络库，请确保调用((SSLSocket)socket).setEnabledProtocols(new String[] {"TLSv1.1", "TLSv1.2"});，以便套接字已启用TLS协议。

现在，您可以在HttpsUrlConnection

中使用它了

class MyHttpRequestTask extends AsyncTask<String,Integer,String> {

    @Override
    protected String doInBackground(String... params) {
        String my_url = params[0];
        try {
            URL url = new URL(my_url);
            HttpsURLConnection httpURLConnection = (HttpsURLConnection) url.openConnection();
            httpURLConnection.setSSLSocketFactory(new MyFactory());
            // setting the  Request Method Type
            httpURLConnection.setRequestMethod("GET");
            // adding the headers for request
            httpURLConnection.setRequestProperty("Content-Type", "application/json");


            String result = readStream(httpURLConnection.getInputStream());
            Log.e("My Networking", "We have data" + result.toString());


        }catch (Exception e){
            e.printStackTrace();
            Log.e("My Networking", "Oh no, error occurred " + e.toString());
        }

        return null;
    }

    private static String readStream(InputStream is) throws IOException {
        final BufferedReader reader = new BufferedReader(new InputStreamReader(is, Charset.forName("US-ASCII")));
        StringBuilder total = new StringBuilder();
        String line;
        while ((line = reader.readLine()) != null) {
            total.append(line);
        }
        if (reader != null) {
            reader.close();
        }
        return total.toString();
    }
}

例如

new MyHttpRequestTask().execute(myUrl);

另外，请记住在build.gradle中将minSdkVersion设置为16

minSdkVersion 16

Answer 7

在Android play-services-safetynet中添加build.gradle库：

implementation 'com.google.android.gms:play-services-safetynet:+'

并将此代码添加到您的MainApplication.java：

@Override
  public void onCreate() {
    super.onCreate();
    upgradeSecurityProvider();
    SoLoader.init(this, /* native exopackage */ false);
  }

  private void upgradeSecurityProvider() {
    ProviderInstaller.installIfNeededAsync(this, new ProviderInstallListener() {
      @Override
      public void onProviderInstalled() {

      }

      @Override
      public void onProviderInstallFailed(int errorCode, Intent recoveryIntent) {
//        GooglePlayServicesUtil.showErrorNotification(errorCode, MainApplication.this);
        GoogleApiAvailability.getInstance().showErrorNotification(MainApplication.this, errorCode);
      }
    });
  }

Answer 8

这对我有用：Enable TLS1.1 and TLS1.2 in Android

如何在Android应用程序中启用TLS 1.2支持（在Android 4.1 JB上运行）

8 个答案: