android - 使用 SSLEngine 时出现异常

Question

我正在为 Android 手机编写自定义服务器来处理 https 请求。它首先监听特定端口，一旦建立连接，它就会与客户端进行握手。这是代码 fragment :

ServerSocket sock = new ServerSocket(8080);
Socketclient client = sock.accept();
doHandshake(client);

...

void doHandshake(Socket socket) throws Exception {
        try {

             SSLContext context = SSLContext.getDefault();
             SSLEngine engine = context.createSSLEngine();
             engine.setUseClientMode(false);

            SSLSession session = engine.getSession();
            // Create byte buffers to use for holding application data
            ByteBuffer myAppData = ByteBuffer.allocate(session.getApplicationBufferSize());
            ByteBuffer peerAppData = ByteBuffer.allocate(session.getApplicationBufferSize());

            ByteBuffer myNetData = ByteBuffer.allocate(session.getPacketBufferSize());
            byte[] peerNetData = new byte[session.getPacketBufferSize()];

            // Begin handshake
            engine.beginHandshake();
            SSLEngineResult.HandshakeStatus hs = engine.getHandshakeStatus();
            InputStream inputStream = socket.getInputStream();
            OutputStream outputStream = socket.getOutputStream();

            int bytesRead;
            // Process handshaking message
            while (hs != SSLEngineResult.HandshakeStatus.FINISHED &&
                    hs != SSLEngineResult.HandshakeStatus.NOT_HANDSHAKING) {

                switch (hs) {

                    case NEED_UNWRAP:
                        // Receive handshaking data from peer
                        bytesRead = inputStream.read(peerNetData);
                        if (bytesRead < 0) {
                            // The channel has reached end-of-stream
                        }

                        ByteBuffer peerData = ByteBuffer.wrap(peerNetData, 0, bytesRead);

                        SSLEngineResult res = engine.unwrap(peerData, peerAppData);

当我将浏览器指向这个服务器 (url = https://localhost:8080) 时，我在“engine.unwrap(peerData, peerAppData)”上遇到了异常

javax.net.ssl.SSLProtocolException: SSL handshake terminated: ssl=0xb8347db8: Failure in SSL library, 通常是协议(protocol)错误错误:1408A0C1:SSL 例程:SSL3_GET_CLIENT_HELLO:没有共享密码(外部/openssl/ssl/s3_srvr.c:1394 0xace00e61:0x00000000)

我错过了什么？

Answer 1

你应该扔掉这段代码。如果您要使用流，请摆脱 SSLEngine 并只使用 SSLSocket。 SSLEngine 用于SocketChannels 的非阻塞模式，如果不将流添加到混合中就很难做到这一点。