Android 应用程序客户端与 java 服务器的双向 TLS

我正在尝试使用双向 TLS 向我的服务器发送 https 请求。我使用 TLS 成功运行的服务器。但我不知道如何在客户端（Android 应用程序）上执行此操作。我在java服务器上使用spring。来自 Android 应用程序的请求是使用HttpsUrlConnection().

我设法能够打电话HttpsUrlConnection()这就是我的代码的样子：

public void test() {
        try {
            URL url = new URL(this.apiUrl);
            HttpsURLConnection urlConnection = (HttpsURLConnection) url.openConnection();
            urlConnection.setSSLSocketFactory(sslContext.getSocketFactory());
            InputStream in = urlConnection.getInputStream();
            System.out.print(in);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

我的服务器配置为使用TLSv1.2协议。 跑步test()抛出这个错误：

W/System.err: javax.net.ssl.SSLHandshakeException: Handshake failed
        at com.android.org.conscrypt.ConscryptFileDescriptorSocket.startHandshake(ConscryptFileDescriptorSocket.java:288)
        at com.android.okhttp.internal.io.RealConnection.connectTls(RealConnection.java:196)
        at com.android.okhttp.internal.io.RealConnection.connectSocket(RealConnection.java:153)
        at com.android.okhttp.internal.io.RealConnection.connect(RealConnection.java:116)
        at com.android.okhttp.internal.http.StreamAllocation.findConnection(StreamAllocation.java:186)
        at com.android.okhttp.internal.http.StreamAllocation.findHealthyConnection(StreamAllocation.java:128)
        at com.android.okhttp.internal.http.StreamAllocation.newStream(StreamAllocation.java:97)
        at com.android.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:289)
        at com.android.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:232)
W/System.err:     at com.android.okhttp.internal.huc.HttpURLConnectionImpl.execute(HttpURLConnectionImpl.java:465)
        at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:411)
        at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:248)
        at com.android.okhttp.internal.huc.DelegatingHttpsURLConnection.getInputStream(DelegatingHttpsURLConnection.java:211)
W/System.err:     at com.android.okhttp.internal.huc.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:30)
        at nl.management.finance.client.RaboClient.test(RaboClient.java:64)
        at nl.management.finance.MainActivity$RESTTask.doInBackground(MainActivity.java:31)
        at nl.management.finance.MainActivity$RESTTask.doInBackground(MainActivity.java:25)
        at android.os.AsyncTask$3.call(AsyncTask.java:378)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:289)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.lang.Thread.run(Thread.java:919)
    Caused by: javax.net.ssl.SSLProtocolException: SSL handshake aborted: ssl=0x703daa2ff448: Failure in SSL library, usually a protocol error
    error:10000412:SSL routines:OPENSSL_internal:SSLV3_ALERT_BAD_CERTIFICATE (external/boringssl/src/ssl/tls_record.cc:587 0x703daa2b1148:0x00000001)
        at com.android.org.conscrypt.NativeCrypto.SSL_do_handshake(Native Method)
        at com.android.org.conscrypt.NativeSsl.doHandshake(NativeSsl.java:387)
        at com.android.org.conscrypt.ConscryptFileDescriptorSocket.startHandshake(ConscryptFileDescriptorSocket.java:226)
        ... 22 more

为什么我在堆栈跟踪中看到 SSLV3？不是使用TLSv1.2吗？ Wireshark 显示了这个https://ibb.co/27mpG4r https://ibb.co/27mpG4r

这段代码（来自@Hakan54）使得SSLContext:

public class SSLTrustManagerHelper {

    private InputStream keyStore;
    private String keyStorePassword;
    private InputStream trustStore;
    private String trustStorePassword;

    public SSLTrustManagerHelper(InputStream keyStore,
                                 String keyStorePassword,
                                 InputStream trustStore,
                                 String trustStorePassword) throws ClientException {
        if (keyStore == null || keyStorePassword.trim().isEmpty() || trustStore == null || trustStorePassword.trim().isEmpty()) {
            throw new ClientException("TrustStore or KeyStore details are empty, which are required to be present when SSL is enabled");
        }

        this.keyStore = keyStore;
        this.keyStorePassword = keyStorePassword;
        this.trustStore = trustStore;
        this.trustStorePassword = trustStorePassword;
    }

    public SSLContext clientSSLContext() throws ClientException {
        try {
            TrustManagerFactory trustManagerFactory = getTrustManagerFactory(trustStore, trustStorePassword);
            KeyManagerFactory keyManagerFactory = getKeyManagerFactory(keyStore, keyStorePassword);
            this.keyStore.close();
            this.trustStore.close();

            return getSSLContext(keyManagerFactory.getKeyManagers(), trustManagerFactory.getTrustManagers());
        } catch (UnrecoverableKeyException | NoSuchAlgorithmException | CertificateException | KeyStoreException | IOException | KeyManagementException e) {
            e.printStackTrace();
            throw new ClientException(e);
        }
    }

    private static SSLContext getSSLContext(KeyManager[] keyManagers, TrustManager[] trustManagers) throws NoSuchAlgorithmException, KeyManagementException {
        SSLContext sslContext = SSLContext.getInstance("TLSv1.2");
        sslContext.init(keyManagers, trustManagers, null);
        return sslContext;
    }

    private static KeyManagerFactory getKeyManagerFactory(InputStream keystore, String keystorePassword) throws NoSuchAlgorithmException, KeyStoreException, IOException, CertificateException, UnrecoverableKeyException, ClientException {
        KeyStore keyStore = loadKeyStore(keystore, keystorePassword);
        KeyManagerFactory keyManagerFactory = KeyManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
        keyManagerFactory.init(keyStore, keystorePassword.toCharArray());
        return keyManagerFactory;
    }

    private static TrustManagerFactory getTrustManagerFactory(InputStream truststore, String truststorePassword) throws KeyStoreException, IOException, NoSuchAlgorithmException, CertificateException, ClientException {
        KeyStore trustStore = loadKeyStore(truststore, truststorePassword);
        TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
        trustManagerFactory.init(trustStore);
        return trustManagerFactory;
    }

    private static KeyStore loadKeyStore(InputStream keystoreStream, String keystorePassword) throws ClientException, IOException, KeyStoreException, NoSuchAlgorithmException, CertificateException {
        if (keystoreStream == null) {
            throw new ClientException("keystore was null.");
        }

        KeyStore keystore = KeyStore.getInstance(KeyStore.getDefaultType());
        keystore.load(keystoreStream, keystorePassword.toCharArray());
        return keystore;
    }

}

您正在寻找的是基于证书的相互身份验证。服务器和客户端都需要相互信任才能进行通信。如果服务器只信任该特定客户端，则任何其他客户端都不可能发出请求。

上面的例子看起来还不错，但是使用下面的例子配置会更容易：

import static java.util.Objects.isNull;
import static org.apache.commons.lang3.StringUtils.isBlank;

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 javax.net.ssl.KeyManager;
import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.TrustManagerFactory;

public class SSLTrustManagerHelper {

    private String keyStore;
    private String keyStorePassword;
    private String trustStore;
    private String trustStorePassword;

    public SSLTrustManagerHelper(String keyStore,
                                 String keyStorePassword,
                                 String trustStore,
                                 String trustStorePassword) {
        if (isBlank(keyStore) || isBlank(keyStorePassword) || isBlank(trustStore) || isBlank(trustStorePassword)) {
            throw new ClientException("TrustStore or KeyStore details are empty, which are required to be present when SSL is enabled");
        }

        this.keyStore = keyStore;
        this.keyStorePassword = keyStorePassword;
        this.trustStore = trustStore;
        this.trustStorePassword = trustStorePassword;
    }

    public SSLContext clientSSLContext() {
        try {
            TrustManagerFactory trustManagerFactory = getTrustManagerFactory(trustStore, trustStorePassword);
            KeyManagerFactory keyManagerFactory = getKeyManagerFactory(keyStore, keyStorePassword);

            return getSSLContext(keyManagerFactory.getKeyManagers(), trustManagerFactory.getTrustManagers());
        } catch (UnrecoverableKeyException | NoSuchAlgorithmException | CertificateException | KeyStoreException | IOException | KeyManagementException e) {
            throw new ClientException(e);
        }
    }

    private static SSLContext getSSLContext(KeyManager[] keyManagers, TrustManager[] trustManagers) throws NoSuchAlgorithmException, KeyManagementException {
        SSLContext sslContext = SSLContext.getInstance("TLSv1.2");
        sslContext.init(keyManagers, trustManagers, null);
        return sslContext;
    }

    private static KeyManagerFactory getKeyManagerFactory(String keystorePath, String keystorePassword) throws NoSuchAlgorithmException, KeyStoreException, IOException, CertificateException, UnrecoverableKeyException {
        KeyStore keyStore = loadKeyStore(keystorePath, keystorePassword);
        KeyManagerFactory keyManagerFactory = KeyManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
        keyManagerFactory.init(keyStore, keystorePassword.toCharArray());
        return keyManagerFactory;
    }

    private static TrustManagerFactory getTrustManagerFactory(String truststorePath, String truststorePassword) throws KeyStoreException, IOException, NoSuchAlgorithmException, CertificateException {
        KeyStore trustStore = loadKeyStore(truststorePath, truststorePassword);
        TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
        trustManagerFactory.init(trustStore);
        return trustManagerFactory;
    }

    private static KeyStore loadKeyStore(String keystorePath, String keystorePassword) throws KeyStoreException, IOException, NoSuchAlgorithmException, CertificateException {
        try(InputStream keystoreInputStream = SSLTrustManagerHelper.class.getClassLoader().getResourceAsStream(keystorePath)) {
            if (isNull(keystoreInputStream)) {
                throw new ClientException(String.format("Could not find the keystore file with the given location %s", keystorePath));
            }

            KeyStore keystore = KeyStore.getInstance(KeyStore.getDefaultType());
            keystore.load(keystoreInputStream, keystorePassword.toCharArray());
            return keystore;
        }
    }

}

在这里，您需要提供密钥库和信任库的位置以及密码。公共类将为您提供 ssl 上下文，您可以将其加载到 http 客户端中。

确保您有一个包含私钥和公钥的客户端密钥库，以及一个包含服务器公钥的信任库。并确保服务器的信任库中有客户端的公钥。您还需要为您的服务器提供附加属性application.yml强制服务器验证客户端的文件。该属性是：client-auth: need

请参阅此处为服务器和客户端设置相互身份验证的完整示例，包括示例项目spring-boot-mutual-tls-ssl https://github.com/Hakky54/mutual-tls-ssl

2022 年更新

我已在库中提供了上述代码片段和其他实用程序，以便更轻松、更简洁地设置 ssl 配置。除此之外，它还包含一些验证。请参阅此处的图书馆GitHub - SSLContext Kickstart: 下载SSLContext Kickstart https://github.com/Hakky54/sslcontext-kickstart

我首先提供的示例可以替换为：

import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;

class App {
    public static void main(String[] args) {
        SSLFactory sslFactory = SSLFactory.builder()
                .withIdentityMaterial("/path/to/resource/identity.jks", "password".toCharArray())
                .withTrustMaterial("/path/to/resource/truststore.jks", "password".toCharArray())
                .build();

        SSLContext sslContext = sslFactory.getSslContext();
        SSLSocketFactory sslSocketFactory = sslFactory.getSslSocketFactory();
    }
}