Question

我的Android应用程序应该能够与任何启用SSL的服务器进行通信。由于我的应用程序是演示应用程序，我的客户在登录时在应用程序中添加了自己的SSL服务器详细信息，所以我不知道需要验证哪个SSL证书。

以下是我之前的代码。

 NSString *Finalstr = [NSString stringWithFormat: @"UserName=%@&Password=%@&grant_type=%@", usernameString,passwordString,Grant_type]

当我更新我的Playstore时，它被拒绝了，原因如下

要正确处理SSL证书验证，请在自定义X509TrustManager接口的checkServerTrusted方法中更改代码，以便在服务器提供的证书不符合您的期望时引发CertificateException或IllegalArgumentException。对于技术问题，您可以发布到Stack Overflow并使用标签“android-security”和“TrustManager。”

我想更新与此相似的代码

public SSLSocketFactory getSSLSocketFactory(String hostname) {
        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) {
            e.printStackTrace();
        }
        return  HttpsURLConnection.getDefaultSSLSocketFactory();
    }

}

Playstore接受这个吗？有没有更好的方法来处理这个？

先谢谢。

Answer 1

import java.io.InputStreamReader;
import java.io.Reader;
import java.net.URL;
import java.net.URLConnection;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import java.security.cert.X509Certificate;

public class Example {
    public static void main(String[] args) throws Exception {
        // Create a trust manager that does not validate certificate chains
        TrustManager[] trustAllCerts = new TrustManager[] {new X509TrustManager() {
                public java.security.cert.X509Certificate[] getAcceptedIssuers() {
                    return null;
                }
                public void checkClientTrusted(X509Certificate[] certs, String authType) {
                }
                public void checkServerTrusted(X509Certificate[] certs, String authType) {
                }
            }
        };

        // Install the all-trusting trust manager
        SSLContext sc = SSLContext.getInstance("SSL");
        sc.init(null, trustAllCerts, new java.security.SecureRandom());
        HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());

        // Create all-trusting host name verifier
        HostnameVerifier allHostsValid = new HostnameVerifier() {
            public boolean verify(String hostname, SSLSession session) {
                return true;
            }
        };

        // Install the all-trusting host verifier
        HttpsURLConnection.setDefaultHostnameVerifier(allHostsValid);

        URL url = new URL("https_url_here");
        URLConnection con = url.openConnection();
        Reader reader = new InputStreamReader(con.getInputStream());
        while (true) {
            int ch = reader.read();
            if (ch==-1) {
                break;
            }
            System.out.print((char)ch);
        }
    }
}

使用此黑客时要小心！跳过证书验证很危险，只能在测试环境中完成。

Answer 2

引用以下解决方案： https://gist.github.com/aembleton/889392

以下代码对HttpsUrlConnection的任何新实例禁用SSL证书检查：

 /**
 * Disables the SSL certificate checking for new instances of {@link HttpsURLConnection} This has been created to
 * aid testing on a local box, not for use on production.
 */
public static void disableSSLCertificateChecking() {
    TrustManager[] trustAllCerts = new TrustManager[] { new X509TrustManager() {
        public X509Certificate[] getAcceptedIssuers() {
            return null;
        }

        @Override
        public void checkClientTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {
            // Not implemented
        }

        @Override
        public void checkServerTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {
            // Not implemented
        }
    } };

    try {
        SSLContext sc = SSLContext.getInstance("TLS");

        sc.init(null, trustAllCerts, new java.security.SecureRandom());

        HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
        HttpsURLConnection.setDefaultHostnameVerifier(new HostnameVerifier() { @Override public boolean verify(String hostname, SSLSession session) { return true; } });
    } catch (KeyManagementException e) {
        e.printStackTrace();
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    }
}

Answer 3

如果有人希望在 NativeScript Android 应用程序中禁用 SSL 证书检查，以下是将 Elad's answer's 代码转换为 JavaScript 的方法：

  const disableSSLCertificateCheckin = function () {
    const trustAllCerts = [new javax.net.ssl.X509TrustManager({
      getAcceptedIssuers: function () {
        return null
      },

      checkClientTrusted: function (arg0, arg1) {
        // Not implemented
      },

      checkServerTrusted: function (arg0, arg1) {
        // Not implemented
      },
    })]

    try {
      const sc = javax.net.ssl.SSLContext.getInstance('TLS')
      sc.init(null, trustAllCerts, new java.security.SecureRandom())

      javax.net.ssl.HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory())
      javax.net.ssl.HttpsURLConnection.HttpsURLConnection.setDefaultHostnameVerifier(
        new javax.net.ssl.HostnameVerifier({
          verify: function (hostname, session) {
            return true
          }
        })
      )
    } catch (e) {
      console.log('e :>> ', e);
    }
  }

  disableSSLCertificateCheckin()

谢谢@Elad！

如何在Android应用程序中绕过SSL证书验证？

3 个答案: