Android上的自签名SSL接受

如何在Android上接受Java中的自签名证书？

代码示例将是完美的.

我在互联网上随处可见,虽然有些人声称已找到解决方案,但它要么不起作用,要么没有示例代码来支持它.

我在exchangeIt中有这个功能,它通过WebDav连接到Microsoft Exchange.这里有一些代码来创建一个HttpClient,它将通过SSL连接到自签名证书:

SchemeRegistry schemeRegistry = new SchemeRegistry();
// http scheme
schemeRegistry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
// https scheme
schemeRegistry.register(new Scheme("https", new EasySSLSocketFactory(), 443));

HttpParams params = new BasicHttpParams();
params.setParameter(ConnManagerPNames.MAX_TOTAL_CONNECTIONS, 30);
params.setParameter(ConnManagerPNames.MAX_CONNECTIONS_PER_ROUTE, new ConnPerRouteBean(30));
params.setParameter(HttpProtocolParams.USE_EXPECT_CONTINUE, false);
HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);

ClientConnectionManager cm = new ThreadSafeClientConnManager(params, schemeRegistry);

EasySSLSocketFactory就在这里,EasyX509TrustManager就在这里.

对于exchangeIt的代码是开源的,并在托管googlecode上这里,如果您有任何问题.我不再积极地工作了,但代码应该可行.

请注意,由于Android 2.2的进程已经改变了一点,所以检查这使上述工作的代码.

正如EJP正确评论的那样,"读者应该注意到这种技术根本不安全.除非至少有一个对等体经过身份验证,否则SSL不安全.请参阅RFC 2246."

话虽如此,这是另一种方式,没有任何额外的类:

import java.security.SecureRandom;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.X509TrustManager;

private void trustEveryone() {
    try {
        HttpsURLConnection.setDefaultHostnameVerifier(new HostnameVerifier(){
                public boolean verify(String hostname, SSLSession session) {
                    return true;
                }});
        SSLContext context = SSLContext.getInstance("TLS");
        context.init(null, new X509TrustManager[]{new X509TrustManager(){
            public void checkClientTrusted(X509Certificate[] chain,
                    String authType) throws CertificateException {}
            public void checkServerTrusted(X509Certificate[] chain,
                    String authType) throws CertificateException {}
            public X509Certificate[] getAcceptedIssuers() {
                return new X509Certificate[0];
            }}}, new SecureRandom());
        HttpsURLConnection.setDefaultSSLSocketFactory(
                context.getSocketFactory());
    } catch (Exception e) { // should never happen
        e.printStackTrace();
    }
}

我昨天遇到了这个问题,同时将我们公司的RESTful API迁移到HTTPS,但使用自签名SSL证书.

我到处寻找,但我发现的所有"正确"标记答案都包括禁用证书验证,明显凌驾于所有SSL的意义上.

我终于找到了解决方案:

创建本地密钥库

要使您的应用程序能够验证自签名证书,您需要以Android可以信任您的端点的方式提供包含证书的自定义密钥库.

这种自定义密钥库的格式是BouncyCastle的 "BKS" ,所以你需要1.46版本的BouncyCastleProvider,你可以在这里下载.

您还需要自签名证书,我会假设它已命名self_cert.pem.

现在,创建密钥库的命令是:

    $ keytool -import -v -trustcacerts -alias 0 \
    -file *PATH_TO_SELF_CERT.PEM* \
    -keystore *PATH_TO_KEYSTORE* \
    -storetype BKS \
    -provider org.bouncycastle.jce.provider.BouncyCastleProvider \
    -providerpath *PATH_TO_bcprov-jdk15on-146.jar* \
    -storepass *STOREPASS*

PATH_TO_KEYSTORE指向将创建密钥库的文件.它绝不存在.

PATH_TO_bcprov-jdk15on-146.jar.JAR 是下载的.jar库的路径.

STOREPASS 是您新创建的密钥库密码.

在您的应用程序中包含KeyStore

将新创建的密钥库复制PATH_TO_KEYSTORE到res/raw/certs.bks(certs.bks只是文件名;您可以使用任何名称)

创建一个关键res/values/strings.xml与

    
    ...
        *STOREPASS*
    ...
    

创建一个继承的这个类 DefaultHttpClient

import android.content.Context;
import android.util.Log;
import org.apache.http.conn.scheme.PlainSocketFactory;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.scheme.SchemeRegistry;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.HttpParams;

import java.io.IOException;
import java.io.InputStream;
import java.security.*;

public class MyHttpClient extends DefaultHttpClient {

    private static Context appContext = null;
    private static HttpParams params = null;
    private static SchemeRegistry schmReg = null;
    private static Scheme httpsScheme = null;
    private static Scheme httpScheme = null;
    private static String TAG = "MyHttpClient";

    public MyHttpClient(Context myContext) {

        appContext = myContext;

        if (httpScheme == null || httpsScheme == null) {
            httpScheme = new Scheme("http", PlainSocketFactory.getSocketFactory(), 80);
            httpsScheme = new Scheme("https", mySSLSocketFactory(), 443);
        }

        getConnectionManager().getSchemeRegistry().register(httpScheme);
        getConnectionManager().getSchemeRegistry().register(httpsScheme);

    }

    private SSLSocketFactory mySSLSocketFactory() {
        SSLSocketFactory ret = null;
        try {
            final KeyStore ks = KeyStore.getInstance("BKS");

            final InputStream inputStream = appContext.getResources().openRawResource(R.raw.certs);

            ks.load(inputStream, appContext.getString(R.string.store_pass).toCharArray());
            inputStream.close();

            ret = new SSLSocketFactory(ks);
        } catch (UnrecoverableKeyException ex) {
            Log.d(TAG, ex.getMessage());
        } catch (KeyStoreException ex) {
            Log.d(TAG, ex.getMessage());
        } catch (KeyManagementException ex) {
            Log.d(TAG, ex.getMessage());
        } catch (NoSuchAlgorithmException ex) {
            Log.d(TAG, ex.getMessage());
        } catch (IOException ex) {
            Log.d(TAG, ex.getMessage());
        } catch (Exception ex) {
            Log.d(TAG, ex.getMessage());
        } finally {
            return ret;
        }
    }
}

HttpResponse httpResponse;

HttpPost httpQuery = new HttpPost("https://yourserver.com");
... set up your query ...

MyHttpClient myClient = new MyHttpClient(myContext);

try{

    httpResponse = myClient.(peticionHttp);

    // Check for 200 OK code
    if (httpResponse.getStatusLine().getStatusCode() == HttpURLConnection.HTTP_OK) {
        ... do whatever you want with your response ...
    }

}catch (Exception ex){
    Log.d("httpError", ex.getMessage());
}