Android客户端上的SSL相互身份验证FAIL接受服务器证书,但服务器未获得客户端证书

时间:2014-04-16 15:39:53

标签: java android ssl https mutual-authentication

我正在尝试在Linux服务器和Android APP之间建立一个相互认证的SSL。 到目前为止,我已经能够让应用程序使用服务器证书通过SSL进行通信,但是一旦我将服务器设置为仅接受客户端证书就停止工作。服务器配置似乎没问题,但我有点卡住了。我最好的猜测是客户端证书没有正确呈现给服务器,但不知道如何测试它。我尝试在我的OS X钥匙串中使用.pem作为客户端,但浏览器似乎不能使用该证书。然后,服务器证书再次完美,因为我可以实现https连接,APP接受我的未签名服务器证书。

我正在使用的代码是各种教程的组合,答案这是我收藏的主要内容:

这是我用于连接的两个主要类: 1)此类处理JSON解析并执行REQUESTS

package edu.hci.additional;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.util.List;

import android.content.Context;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.utils.URLEncodedUtils;
import org.json.JSONException;
import org.json.JSONObject;

import android.util.Log;

public class JSONParser {

    static InputStream is = null;
    static JSONObject jObj = null;
    static String json = "";

    // constructor
    public JSONParser() {

    }

    // function get json from url
    // by making HTTP POST or GET mehtod
    public JSONObject makeHttpRequest(String url, String method,
            List<NameValuePair> params, Context context) {

        // Making HTTP request
        try {

            // check for request method
            if(method == "POST"){
                // request method is POST
                // defaultHttpClient
                SecureHttpClient httpClient = new SecureHttpClient(context);
                HttpPost httpPost = new HttpPost(url);
                httpPost.setEntity(new UrlEncodedFormEntity(params));

                HttpResponse httpResponse = httpClient.execute(httpPost);
                HttpEntity httpEntity = httpResponse.getEntity();
                is = httpEntity.getContent();

            }else if(method == "GET"){
                // request method is GET
                SecureHttpClient httpClient = new SecureHttpClient(context);
                String paramString = URLEncodedUtils.format(params, "utf-8");
                url += "?" + paramString;
                HttpGet httpGet = new HttpGet(url);

                HttpResponse httpResponse = httpClient.execute(httpGet);
                HttpEntity httpEntity = httpResponse.getEntity();
                is = httpEntity.getContent();
            }           


        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        try {
            BufferedReader reader = new BufferedReader(new InputStreamReader(
                    is, "iso-8859-1"), 8);
            StringBuilder sb = new StringBuilder();
            String line = null;
            while ((line = reader.readLine()) != null) {
                sb.append(line + "\n");
            }
            is.close();
            json = sb.toString();
        } catch (Exception e) {
            Log.e("Buffer Error", "Error converting result " + e.toString());
        }

        // try parse the string to a JSON object
        try {
            jObj = new JSONObject(json);
        } catch (JSONException e) {
            Log.e("JSON Parser", "Error parsing data " + e.toString());
        }

        // return JSON String
        return jObj;

    }
}

第二个类处理SSL身份验证:

package edu.hci.additional;

import android.content.Context;
import android.util.Log;
import edu.hci.R;
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 SecureHttpClient 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 SecureHttpClient(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 clientCert = KeyStore.getInstance("BKS");
            final KeyStore serverCert = KeyStore.getInstance("BKS");

            final InputStream client_inputStream = appContext.getResources().openRawResource(R.raw.authclientcerts);
            final InputStream server_inputStream = appContext.getResources().openRawResource(R.raw.certs);

            clientCert.load(client_inputStream, appContext.getString(R.string.client_store_pass).toCharArray());
            serverCert.load(server_inputStream, appContext.getString(R.string.server_store_pass).toCharArray());

            String client_password = appContext.getString(R.string.client_store_pass);

            server_inputStream.close();
            client_inputStream.close();

            ret = new SSLSocketFactory(clientCert,client_password,serverCert);
        } 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;
        }
    }

}

使用此命令创建我使用openssl的键:

openssl req -nodes -x509 -newkey rsa:2048 -keyout key.pem -out cert.pem -days 500

要获得BKS for Android的钥匙,我使用了位于http://www.bouncycastle.org/latest_releases.html的充气城堡bcprov-jdk15on-150.jar

并使用命令:

keytool -import -v -trustcacerts -alias 0 -file ~/cert.pem -keystore ~/Downloads/authclientcerts.bks -storetype BKS -provider org.bouncycastle.jce.provider.BouncyCastleProvider -providerpath ~/Downloads/bcprov-jdk15on-150.jar -storepass passWORD

最后,我添加到/etc/httpd/conf.d/ssl.conf以获取客户端证书并检查Fedora 19中的证书有效性(与我创建的客户端证书相匹配)的行是:

...
SSLVerifyClient require
SSLVerifyDepth  5
...
<Location />
SSLRequire (    %{SSL_CLIENT_S_DN_O} eq "Develop" \
            and %{SSL_CLIENT_S_DN_OU} in {"Staff", "Operations", "Dev"} )
</Location>
...
SSLOptions +FakeBasicAuth +StrictRequire

我在这个配置文件上尝试了很多组合,并且所有结果都以相同的结果告诉我“SSLPeerUnverifiedException:No peer certificate”异常。我在服务器的SSL配置文件中注释了这一行,并且一切正常,但是服务器接受了我不需要的所有客户端。

提前致谢:)

更新

@EJP 的答案就是这个伎俩

首先,我必须将证书添加到正确的(/ etc / pki / tls / certs /)路径并使用以下命令加载它: 重命名证书:mv ca-andr.pem ca-andr.crt 现在加载证书:

 ln -s ca-andr.crt $( openssl x509 -hash -noout -in ca-andr.crt )".0"

这将创建一个名称类似于“f3f24175.0”的openSSL可读符号链接

然后我在/etc/httpd/conf.d/ssl.conf配置文件中设置新的证书文件。

…
SSLCACertificateFile /etc/pki/tls/certs/f2f62175.0
…

现在重启http服务和 测试证书是否加载:

openssl verify -CApath /etc/pki/tls/certs/ f2f62175.0

如果一切正常,你应该看到:

f3f24175.0:好的

你可以用:

结束测试
openssl s_client -connect example.com:443 -CApath /etc/pki/tls/certs

这应返回受信任的客户端证书列表(如果您看到添加的证书正在运行)

现在问题的第二部分是我的authclientcerts.BKS不包含私钥,因此我提供的密码从未使用过,服务器也不会对证书进行身份验证。所以我将我的密钥和证书导出到pkcs12并相应地更新了JAVA代码。

导出命令:

openssl pkcs12 -export -in ~/cert.pem -inkey ~/key.pem > android_client_p12.p12

然后,我更改了SecureHttpClient.java类的部分,以使用PKCS12而不是BKS来创建客户端证书。

将密钥库类型从BKS更改为PKCS12 我取代了:

final KeyStore clientCert = KeyStore.getInstance("BKS”);

为此:

final KeyStore clientCert = KeyStore.getInstance("PKCS12");

然后我更新了对res / raw /上的实际密钥库文件的引用 替换:

final InputStream client_inputStream = appContext.getResources().openRawResource(R.raw.authclientcerts);

为此:

final InputStream client_inputStream = appContext.getResources().openRawResource(R.raw.android_client_p12);

这就是诀窍:D

1 个答案:

答案 0 :(得分:3)

当服务器要求提供客户端证书时,它会提供一个CA列表,它将接受由其签名的证书。如果客户没有其中一个签署的证书,则不会发送回复的证书。如果服务器配置为需要客户端证书,而不是只想要一个,则它将关闭连接。

因此,请确保客户端具有服务器信任库可接受的证书。