使用 2-way SSL Handskake（客户端和服务器证书）设置 Netty

Question

我现在正在尝试使用 2 路 SSL 握手设置 Netty，客户端和服务器都存在并验证证书。

这似乎没有在 SslHandler 中实现。有人这样做吗？我想它会进入 SslHandler.handshake 操作并委托给 javax.net.ssl.SSLEngine？

任何提示/提示/预先存在的实现？

谢谢！

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回答（stackoverflow 不会让我以正常方式发布它）我发现如果我在设置我的 SslHandler 之前在 SSLEngine 对象上设置了 needClientAuth 标志，那么问题就解决了！

Answer 1

这是基于 netty 项目的 HttpSnoop 服务器示例的解决方案。

设置客户端管道时，ssl引擎必须设置如下：

public ChannelPipeline getPipeline() throws Exception {
    // Create a default pipeline implementation.
    ChannelPipeline pipeline = pipeline();

    // Uncomment the following line if you want HTTPS
    SSLEngine engine = SecureChatSslContextFactory.getServerContext().createSSLEngine();
    engine.setUseClientMode(false);
    engine.setNeedClientAuth(true);
    pipeline.addLast("ssl", new SslHandler(engine));

    pipeline.addLast("decoder", new HttpRequestDecoder());
    pipeline.addLast("logger", new RequestAuditLogger());
    // Uncomment the following line if you don't want to handle HttpChunks.
    pipeline.addLast("aggregator", new HttpChunkAggregator(1048576));
    pipeline.addLast("outputLogger", new ResponseAuditLogger());
    pipeline.addLast("encoder", new HttpResponseEncoder());
    // Remove the following line if you don't want automatic content compression.
    pipeline.addLast("deflater", new HttpContentCompressor());
    pipeline.addLast("handler", new HttpSnoopServerHandler());
    return pipeline;
}
}

那么您的 SSLContext 必须进行如下修改，以设置除了密钥库（SecureChatSslContextFactory）之外的信任库：

public final class SecureChatSslContextFactory {


private static Logger logger = LoggerFactory.getLogger(SecureChatSslContextFactory.class);

private static final String PROTOCOL = "TLS";
private static final SSLContext SERVER_CONTEXT;
private static final SSLContext CLIENT_CONTEXT;

static {

    SSLContext serverContext = null;
    SSLContext clientContext = null;

        // get keystore and trustore locations and passwords
    String keyStoreLocation = System.getProperty("javax.net.ssl.keyStore");
    String keyStorePassword = System.getProperty("javax.net.ssl.keyStorePassword");
    String trustStoreLocation = System.getProperty("javax.net.ssl.trustStore");
    String trustStorePassword = System.getProperty("javax.net.ssl.trustStorePassword");
    try {

        KeyStore ks = KeyStore.getInstance("JKS");
        ks.load(KeyStoreStreamManager.asInputStream(keyStoreLocation),
                keyStorePassword.toCharArray());

        // Set up key manager factory to use our key store
        KeyManagerFactory kmf = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
        kmf.init(ks, keyStorePassword.toCharArray());

          // truststore
        KeyStore ts = KeyStore.getInstance("JKS");
        ts.load(KeyStoreStreamManager.asInputStream(trustStoreLocation),
                trustStorePassword.toCharArray());

        // set up trust manager factory to use our trust store
        TrustManagerFactory tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
        tmf.init(ts);

        // Initialize the SSLContext to work with our key managers.
        serverContext = SSLContext.getInstance(PROTOCOL);
        serverContext.init(kmf.getKeyManagers(), tmf.getTrustManagers(), null);

    } catch (Exception e) {
        throw new Error(
                "Failed to initialize the server-side SSLContext", e);
    }

    try {
        clientContext = SSLContext.getInstance(PROTOCOL);
        clientContext.init(null, SecureChatTrustManagerFactory.getTrustManagers(), null);
    } catch (Exception e) {
        throw new Error(
                "Failed to initialize the client-side SSLContext", e);
    }

    SERVER_CONTEXT = serverContext;
    CLIENT_CONTEXT = clientContext;
}

public static SSLContext getServerContext() {
    return SERVER_CONTEXT;
}

public static SSLContext getClientContext() {
    return CLIENT_CONTEXT;
}

private SecureChatSslContextFactory() {
    // Unused
}
}

Answer 2

不要设置SSLEngine，而是使用nettys SslContext来创建一个新的SslHandler。基本上你可以通过传递KeyManagerFactory 来创建新的SslContext，如下所示

SslContext sslContext = SslContextBuilder.forServer(keyManagerFactory).build();

然后使用创建的SslContext 获取ChannelPipeline 的处理程序。

ChannelPipeline.addLast("ssl", sslContext.newHandler(socketChannel.alloc()));

Answer 3

SslContext 现在支持相互身份验证（目前仅适用于 JDK 提供程序，但即将提供 OpenSSL 支持）。请参阅newClientContext 和newServerContext，它们现在都支持采用 TrustManagerFactory 和 KeyManagerFactory。这些静态工厂方法还支持直接获取证书、密钥和证书链文件为您构建 TrustManagerFactory 和 KeyManagerFactory。

请参阅JdkSslEngineTest 以获取有关如何要求客户端身份验证的示例（对于 JDK 提供程序）。