使用HttpsURLConnection时，如何覆盖Android发送到服务器的密码列表？

这段代码有点原始。请谨慎使用。

public class PreferredCipherSuiteSSLSocketFactory extends SSLSocketFactory {


private static final String PREFERRED_CIPHER_SUITE = "TLS_RSA_WITH_AES_128_CBC_SHA";

private final SSLSocketFactory delegate;

public PreferredCipherSuiteSSLSocketFactory(SSLSocketFactory delegate) {

    this.delegate = delegate;
}

@Override
public String[] getDefaultCipherSuites() {

    return setupPreferredDefaultCipherSuites(this.delegate);
}

@Override
public String[] getSupportedCipherSuites() {

    return setupPreferredSupportedCipherSuites(this.delegate);
}

@Override
public Socket createSocket(String arg0, int arg1) throws IOException,
        UnknownHostException {

    Socket socket = this.delegate.createSocket(arg0, arg1);
    String[] cipherSuites = setupPreferredDefaultCipherSuites(delegate);
    ((SSLSocket)socket).setEnabledCipherSuites(cipherSuites);

    return socket;
}

@Override
public Socket createSocket(InetAddress arg0, int arg1) throws IOException {

    Socket socket = this.delegate.createSocket(arg0, arg1);
    String[] cipherSuites = setupPreferredDefaultCipherSuites(delegate);
    ((SSLSocket)socket).setEnabledCipherSuites(cipherSuites);

    return socket;
}

@Override
public Socket createSocket(Socket arg0, String arg1, int arg2, boolean arg3)
        throws IOException {

    Socket socket = this.delegate.createSocket(arg0, arg1, arg2, arg3);
    String[] cipherSuites = setupPreferredDefaultCipherSuites(delegate);
    ((SSLSocket)socket).setEnabledCipherSuites(cipherSuites);

    return socket;
}

@Override
public Socket createSocket(String arg0, int arg1, InetAddress arg2, int arg3)
        throws IOException, UnknownHostException {

    Socket socket = this.delegate.createSocket(arg0, arg1, arg2, arg3);
    String[] cipherSuites = setupPreferredDefaultCipherSuites(delegate);
    ((SSLSocket)socket).setEnabledCipherSuites(cipherSuites);

    return socket;
}

@Override
public Socket createSocket(InetAddress arg0, int arg1, InetAddress arg2,
        int arg3) throws IOException {

    Socket socket = this.delegate.createSocket(arg0, arg1, arg2, arg3);
    String[] cipherSuites = setupPreferredDefaultCipherSuites(delegate);
    ((SSLSocket)socket).setEnabledCipherSuites(cipherSuites);

    return socket;
}

private static String[] setupPreferredDefaultCipherSuites(SSLSocketFactory sslSocketFactory) {

    String[] defaultCipherSuites = sslSocketFactory.getDefaultCipherSuites();

    ArrayList<String> suitesList = new ArrayList<String>(Arrays.asList(defaultCipherSuites));
    suitesList.remove(PREFERRED_CIPHER_SUITE);
    suitesList.add(0, PREFERRED_CIPHER_SUITE);

    return suitesList.toArray(new String[suitesList.size()]);
}

private static String[] setupPreferredSupportedCipherSuites(SSLSocketFactory sslSocketFactory) {

    String[] supportedCipherSuites = sslSocketFactory.getSupportedCipherSuites();

    ArrayList<String> suitesList = new ArrayList<String>(Arrays.asList(supportedCipherSuites));
    suitesList.remove(PREFERRED_CIPHER_SUITE);
    suitesList.add(0, PREFERRED_CIPHER_SUITE);

    return suitesList.toArray(new String[suitesList.size()]);
}
}

当您想使用它时。

            HttpsURLConnection connection = (HttpsURLConnection) (new URL(url))
                .openConnection();
        SSLContext context = SSLContext.getInstance("TLS");
        TrustManager tm[] = {new SSLPinningTrustManager()};
        context.init(null, tm, null);
        SSLSocketFactory preferredCipherSuiteSSLSocketFactory = new PreferredCipherSuiteSSLSocketFactory(context.getSocketFactory());
        connection.setSSLSocketFactory(preferredCipherSuiteSSLSocketFactory);
                    connection.connect();

谢谢你。

我将@ThinkChris的答案1 中的技术捆绑到一个死的简单方法调用中。在使用 Android 的 .NetCipher 将实例配置为使用受支持的最佳 TLS 版本，删除 SSLv3 支持，并为该 TLS 版本配置最佳密码套件。首先，将其添加到您的 build.gradle：HttpsURLConnectionHttpsURLConnection

compile 'info.guardianproject.netcipher:netcipher:1.2'

或者，您可以下载netcipher-1.2.jar并将其直接包含在您的应用程序中。然后不打电话：

HttpURLConnection connection = (HttpURLConnection) sourceUrl.openConnection();

称之为：

HttpsURLConnection connection = NetCipher.getHttpsURLConnection(sourceUrl);

如果要专门自定义该密码列表，可以在此处检查代码。但是大多数人不应该考虑密码列表，相反，它应该默认使用常见的最佳实践。