我正在尝试在 android 中运行以下代码

URLConnection l_connection = null;
        // Create connection
        uzip=new UnZipData(mContext);
        l_url = new URL(serverurl);

        if ("https".equals(l_url.getProtocol())) {
            System.out.println("<<<<<<<<<<<<< Before TLS >>>>>>>>>>>>");
            sslcontext = SSLContext.getInstance("TLS");
            System.out.println("<<<<<<<<<<<<< After TLS >>>>>>>>>>>>");
            sslcontext.init(null,
                    new TrustManager[] { new CustomTrustManager()},
                    new java.security.SecureRandom());
            HttpsURLConnection
                    .setDefaultHostnameVerifier(new CustomHostnameVerifier());
            HttpsURLConnection.setDefaultSSLSocketFactory(sslcontext
                    .getSocketFactory());

            l_connection = (HttpsURLConnection) l_url.openConnection();
            ((HttpsURLConnection) l_connection).setRequestMethod("POST");
        } else {
            l_connection = (HttpURLConnection) l_url.openConnection();
            ((HttpURLConnection) l_connection).setRequestMethod("POST");
        }
        /*System.setProperty("http.agent", "Android_Phone");*/


        l_connection.setConnectTimeout(10000);
        l_connection.setRequestProperty("Content-Language", "en-US");
        l_connection.setUseCaches(false);
        l_connection.setDoInput(true);
        l_connection.setDoOutput(true);
        System.out.println("<<<<<<<<<<<<< Before Connection >>>>>>>>>>>>");
        l_connection.connect();

在 l_connection.connect() 上，它给出了这个 SSLhandshakeException。有时它有效，但大多数时候它给出了异常(exception)。它只发生在 Android 4.0 模拟器上。我在 Android 4.4 和 5.0 上测试过，效果很好。这可能是什么原因？请帮忙

堆栈跟踪

    04-28 15:51:13.143: W/System.err(2915): javax.net.ssl.SSLHandshakeException: javax.net.ssl.SSLProtocolException: SSL handshake aborted: ssl=0x870c918: Failure in SSL library, usually a protocol error
04-28 15:51:13.143: W/System.err(2915): error:14077410:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert handshake failure (external/openssl/ssl/s23_clnt.c:658 0xb7c393a1:0x00000000)
04-28 15:51:13.143: W/System.err(2915):     at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:460)
04-28 15:51:13.143: W/System.err(2915):     at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:257)
04-28 15:51:13.143: W/System.err(2915):     at libcore.net.http.HttpConnection.setupSecureSocket(HttpConnection.java:210)
04-28 15:51:13.143: W/System.err(2915):     at libcore.net.http.HttpsURLConnectionImpl$HttpsEngine.makeSslConnection(HttpsURLConnectionImpl.java:477)
04-28 15:51:13.153: W/System.err(2915):     at libcore.net.http.HttpsURLConnectionImpl$HttpsEngine.connect(HttpsURLConnectionImpl.java:441)
04-28 15:51:13.153: W/System.err(2915):     at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:282)
04-28 15:51:13.153: W/System.err(2915):     at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:232)
04-28 15:51:13.153: W/System.err(2915):     at libcore.net.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java:80)
04-28 15:51:13.153: W/System.err(2915):     at libcore.net.http.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:164)
04-28 15:51:13.153: W/System.err(2915):     at com.ofss.fcdb.mobile.android.rms.helpers.NetworkConnector.getConnection(NetworkConnector.java:170)
04-28 15:51:13.153: W/System.err(2915):     at com.ofss.fcdb.mobile.android.rms.util.InitiateRMS$2.run(InitiateRMS.java:221)
04-28 15:51:13.153: W/System.err(2915):     at java.lang.Thread.run(Thread.java:856)
04-28 15:51:13.153: W/System.err(2915): Caused by: javax.net.ssl.SSLProtocolException: SSL handshake aborted: ssl=0x870c918: Failure in SSL library, usually a protocol error
04-28 15:51:13.153: W/System.err(2915): error:14077410:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert handshake failure (external/openssl/ssl/s23_clnt.c:658 0xb7c393a1:0x00000000)
04-28 15:51:13.153: W/System.err(2915):     at org.apache.harmony.xnet.provider.jsse.NativeCrypto.SSL_do_handshake(Native Method)
04-28 15:51:13.153: W/System.err(2915):     at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:410)
04-28 15:51:13.153: W/System.err(2915):     ... 11 more
04-28 16:42:44.139: W/ResourceType(3140): No package identifier when getting value for resource number 0x00000000

最佳答案

我通过使用wireshark分析数据包找到了解决方案。我发现，在建立安全连接时，android 从 TLSv1 回退到 SSLv3 。这是 android 版本 < 4.4="" 中的错误，可以通过从="" enabled="" protocols="" 列表中删除="" sslv3="" 协议(protocol)来解决。我制作了一个名为="" nosslv3socketfactory.java="" 的自定义="" socketfactory="">

/*Copyright 2015 Bhavit Singh Sengar
Licensed 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.*/

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.Socket;
import java.net.SocketAddress;
import java.net.SocketException;
import java.nio.channels.SocketChannel;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import javax.net.ssl.HandshakeCompletedListener;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLSession;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;


public class NoSSLv3SocketFactory extends SSLSocketFactory{
    private final SSLSocketFactory delegate;

public NoSSLv3SocketFactory() {
    this.delegate = HttpsURLConnection.getDefaultSSLSocketFactory();
}

public NoSSLv3SocketFactory(SSLSocketFactory delegate) {
    this.delegate = delegate;
}

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

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

private Socket makeSocketSafe(Socket socket) {
    if (socket instanceof SSLSocket) {
        socket = new NoSSLv3SSLSocket((SSLSocket) socket);
    }
    return socket;
}

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

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

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

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

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

private class NoSSLv3SSLSocket extends DelegateSSLSocket {

    private NoSSLv3SSLSocket(SSLSocket delegate) {
        super(delegate);

    }

    @Override
    public void setEnabledProtocols(String[] protocols) {
        if (protocols != null && protocols.length == 1 && "SSLv3".equals(protocols[0])) {

            List<String> enabledProtocols = new ArrayList<String>(Arrays.asList(delegate.getEnabledProtocols()));
            if (enabledProtocols.size() > 1) {
                enabledProtocols.remove("SSLv3");
                System.out.println("Removed SSLv3 from enabled protocols");
            } else {
                System.out.println("SSL stuck with protocol available for " + String.valueOf(enabledProtocols));
            }
            protocols = enabledProtocols.toArray(new String[enabledProtocols.size()]);
        }

        super.setEnabledProtocols(protocols);
    }
}

public class DelegateSSLSocket extends SSLSocket {

    protected final SSLSocket delegate;

    DelegateSSLSocket(SSLSocket delegate) {
        this.delegate = delegate;
    }

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

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

    @Override
    public void setEnabledCipherSuites(String[] suites) {
        delegate.setEnabledCipherSuites(suites);
    }

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

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

    @Override
    public void setEnabledProtocols(String[] protocols) {
        delegate.setEnabledProtocols(protocols);
    }

    @Override
    public SSLSession getSession() {
        return delegate.getSession();
    }

    @Override
    public void addHandshakeCompletedListener(HandshakeCompletedListener listener) {
        delegate.addHandshakeCompletedListener(listener);
    }

    @Override
    public void removeHandshakeCompletedListener(HandshakeCompletedListener listener) {
        delegate.removeHandshakeCompletedListener(listener);
    }

    @Override
    public void startHandshake() throws IOException {
        delegate.startHandshake();
    }

    @Override
    public void setUseClientMode(boolean mode) {
        delegate.setUseClientMode(mode);
    }

    @Override
    public boolean getUseClientMode() {
        return delegate.getUseClientMode();
    }

    @Override
    public void setNeedClientAuth(boolean need) {
        delegate.setNeedClientAuth(need);
    }

    @Override
    public void setWantClientAuth(boolean want) {
        delegate.setWantClientAuth(want);
    }

    @Override
    public boolean getNeedClientAuth() {
        return delegate.getNeedClientAuth();
    }

    @Override
    public boolean getWantClientAuth() {
        return delegate.getWantClientAuth();
    }

    @Override
    public void setEnableSessionCreation(boolean flag) {
        delegate.setEnableSessionCreation(flag);
    }

    @Override
    public boolean getEnableSessionCreation() {
        return delegate.getEnableSessionCreation();
    }

    @Override
    public void bind(SocketAddress localAddr) throws IOException {
        delegate.bind(localAddr);
    }

    @Override
    public synchronized void close() throws IOException {
        delegate.close();
    }

    @Override
    public void connect(SocketAddress remoteAddr) throws IOException {
        delegate.connect(remoteAddr);
    }

    @Override
    public void connect(SocketAddress remoteAddr, int timeout) throws IOException {
        delegate.connect(remoteAddr, timeout);
    }

    @Override
    public SocketChannel getChannel() {
        return delegate.getChannel();
    }

    @Override
    public InetAddress getInetAddress() {
        return delegate.getInetAddress();
    }

    @Override
    public InputStream getInputStream() throws IOException {
        return delegate.getInputStream();
    }

    @Override
    public boolean getKeepAlive() throws SocketException {
        return delegate.getKeepAlive();
    }

    @Override
    public InetAddress getLocalAddress() {
        return delegate.getLocalAddress();
    }

    @Override
    public int getLocalPort() {
        return delegate.getLocalPort();
    }

    @Override
    public SocketAddress getLocalSocketAddress() {
        return delegate.getLocalSocketAddress();
    }

    @Override
    public boolean getOOBInline() throws SocketException {
        return delegate.getOOBInline();
    }

    @Override
    public OutputStream getOutputStream() throws IOException {
        return delegate.getOutputStream();
    }

    @Override
    public int getPort() {
        return delegate.getPort();
    }

    @Override
    public synchronized int getReceiveBufferSize() throws SocketException {
        return delegate.getReceiveBufferSize();
    }

    @Override
    public SocketAddress getRemoteSocketAddress() {
        return delegate.getRemoteSocketAddress();
    }

    @Override
    public boolean getReuseAddress() throws SocketException {
        return delegate.getReuseAddress();
    }

    @Override
    public synchronized int getSendBufferSize() throws SocketException {
        return delegate.getSendBufferSize();
    }

    @Override
    public int getSoLinger() throws SocketException {
        return delegate.getSoLinger();
    }

    @Override
    public synchronized int getSoTimeout() throws SocketException {
        return delegate.getSoTimeout();
    }

    @Override
    public boolean getTcpNoDelay() throws SocketException {
        return delegate.getTcpNoDelay();
    }

    @Override
    public int getTrafficClass() throws SocketException {
        return delegate.getTrafficClass();
    }

    @Override
    public boolean isBound() {
        return delegate.isBound();
    }

    @Override
    public boolean isClosed() {
        return delegate.isClosed();
    }

    @Override
    public boolean isConnected() {
        return delegate.isConnected();
    }

    @Override
    public boolean isInputShutdown() {
        return delegate.isInputShutdown();
    }

    @Override
    public boolean isOutputShutdown() {
        return delegate.isOutputShutdown();
    }

    @Override
    public void sendUrgentData(int value) throws IOException {
        delegate.sendUrgentData(value);
    }

    @Override
    public void setKeepAlive(boolean keepAlive) throws SocketException {
        delegate.setKeepAlive(keepAlive);
    }

    @Override
    public void setOOBInline(boolean oobinline) throws SocketException {
        delegate.setOOBInline(oobinline);
    }

    @Override
    public void setPerformancePreferences(int connectionTime, int latency, int bandwidth) {
        delegate.setPerformancePreferences(connectionTime, latency, bandwidth);
    }

    @Override
    public synchronized void setReceiveBufferSize(int size) throws SocketException {
        delegate.setReceiveBufferSize(size);
    }

    @Override
    public void setReuseAddress(boolean reuse) throws SocketException {
        delegate.setReuseAddress(reuse);
    }

    @Override
    public synchronized void setSendBufferSize(int size) throws SocketException {
        delegate.setSendBufferSize(size);
    }

    @Override
    public void setSoLinger(boolean on, int timeout) throws SocketException {
        delegate.setSoLinger(on, timeout);
    }

    @Override
    public synchronized void setSoTimeout(int timeout) throws SocketException {
        delegate.setSoTimeout(timeout);
    }

    @Override
    public void setTcpNoDelay(boolean on) throws SocketException {
        delegate.setTcpNoDelay(on);
    }

    @Override
    public void setTrafficClass(int value) throws SocketException {
        delegate.setTrafficClass(value);
    }

    @Override
    public void shutdownInput() throws IOException {
        delegate.shutdownInput();
    }

    @Override
    public void shutdownOutput() throws IOException {
        delegate.shutdownOutput();
    }

    @Override
    public String toString() {
        return delegate.toString();
    }

    @Override
    public boolean equals(Object o) {
        return delegate.equals(o);
    }
}
}

在连接时像这样使用这个类:

SSLContext sslcontext = SSLContext.getInstance("TLSv1");
sslcontext.init(null, null, null);
SSLSocketFactory NoSSLv3Factory = new NoSSLv3SocketFactory(sslcontext.getSocketFactory());

HttpsURLConnection.setDefaultSSLSocketFactory(NoSSLv3Factory);
l_connection = (HttpsURLConnection) l_url.openConnection();
l_connection.connect();

更新:

现在，正确的解决方案是使用 Google Play Services 安装更新的安全提供程序:

    ProviderInstaller.installIfNeeded(getApplicationContext());

这有效地使您的应用可以访问更新版本的 OpenSSL 和 Java 安全提供程序，其中包括对 SSLEngine 中的 TLSv1.2 的支持。安装新的提供程序后，您可以按照通常的方式创建支持 SSLv3、TLSv1、TLSv1.1 和 TLSv1.2 的 SSLEngine:

    SSLContext sslContext = SSLContext.getInstance("TLSv1.2");
    sslContext.init(null, null, null);
    SSLEngine engine = sslContext.createSSLEngine();

或者您可以使用 engine.setEnabledProtocols 限制启用的协议(protocol)。

不要忘记添加以下依赖项(check the latest version here):

implementation 'com.google.android.gms:play-services-auth:17.0.0'

欲了解更多信息，请查看 link .

关于android - Javax.net.ssl.SSLHandshakeException : javax.net.ssl.SSLProtocolException : SSL handshake aborted: Failure in SSL library, 通常是协议(protocol)错误，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/29916962/