Trust Anchor not found for Android SSL Connection

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I am trying to connect to an IIS6 box running a godaddy 256bit SSL cert, and I am getting the error :

java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.

Been trying to determine what could be causing that, but drawing blanks right now.

Here is how I am connecting :

HttpsURLConnection conn;              
conn = (HttpsURLConnection) (new URL(mURL)).openConnection();
conn.setConnectTimeout(20000);
conn.setDoInput(true);
conn.setDoOutput(true);
conn.connect();
String tempString = toString(conn.getInputStream()); 

The solution of @Chrispix is dangerous! Trusting all certificates allows anybody to do a man in the middle attack! Just send ANY certificate to the client and it will accept it!

Add your certificate(s) to a custom trust manager like described in this post: Trusting all certificates using HttpClient over HTTPS

Although it is a bit more complex to establish a secure connection with a custom certificate, it will bring you the wanted ssl encryption security without the danger of man in the middle attack!

Security with HTTPS and SSL, [SOLVED]Android - Trust anchor for certification path not found 45 more 07-20 21:38:58.002 8831 8856 W System.err: javax.net.ssl. 07-20 21:38:58.002 8831 8856 W System.err: at okhttp3.internal.connection. /*****/ /* Below code is only purposed for Testing, Not to use in real environment */ /** * Setting custom Trust managers which are intended to allow SSL connection to server. * This custom trust managers are allowing for all connection types, so this may cause network connection security leak.


Contrary to the accepted answer you do not need a custom trust manager, you need to fix your server configuration!

I hit the same problem while connecting to an Apache server with an incorrectly installed dynadot/alphassl certificate. I'm connecting using HttpsUrlConnection (Java/Android), which was throwing -

javax.net.ssl.SSLHandshakeException: 
  java.security.cert.CertPathValidatorException: 
    Trust anchor for certification path not found.

The actual problem is a server misconfiguration - test it with http://www.digicert.com/help/ or similar, and it will even tell you the solution:

"The certificate is not signed by a trusted authority (checking against Mozilla's root store). If you bought the certificate from a trusted authority, you probably just need to install one or more Intermediate certificates. Contact your certificate provider for assistance doing this for your server platform."

You can also check the certificate with openssl:

openssl s_client -debug -connect www.thedomaintocheck.com:443

You'll probably see:

Verify return code: 21 (unable to verify the first certificate)

and, earlier in the output:

depth=0 OU = Domain Control Validated, CN = www.thedomaintocheck.com
verify error:num=20:unable to get local issuer certificate
verify return:1
depth=0 OU = Domain Control Validated, CN = www.thedomaintocheck.com
verify error:num=27:certificate not trusted
verify return:1
depth=0 OU = Domain Control Validated, CN = www.thedomaintocheck.com
verify error:num=21:unable to verify the first certificate`

The certificate chain will only contain 1 element (your certificate):

Certificate chain
 0 s:/OU=Domain Control Validated/CN=www.thedomaintocheck.com
  i:/O=AlphaSSL/CN=AlphaSSL CA - G2

... but should reference the signing authorities in a chain back to one which is trusted by Android (Verisign, GlobalSign, etc):

Certificate chain
 0 s:/OU=Domain Control Validated/CN=www.thedomaintocheck.com
   i:/O=AlphaSSL/CN=AlphaSSL CA - G2
 1 s:/O=AlphaSSL/CN=AlphaSSL CA - G2
   i:/C=BE/O=GlobalSign nv-sa/OU=Root CA/CN=GlobalSign Root CA
 2 s:/C=BE/O=GlobalSign nv-sa/OU=Root CA/CN=GlobalSign Root CA
   i:/C=BE/O=GlobalSign nv-sa/OU=Root CA/CN=GlobalSign Root CA

Instructions (and the intermediate certificates) for configuring your server are usually provided by the authority that issued your certificate, for example: http://www.alphassl.com/support/install-root-certificate.html

After installing the intermediate certificates provided by my certificate issuer I now have no errors when connecting using HttpsUrlConnection.

[SOLVED]Android, ssl.SSLHandshakeException: java.security.cert.CertPathValidatorException: Trust anchor for certification path not found. There are the following possible causes. Now is the time to install that APK file. Open a terminal and changed to the signed apk file folder. Connect your Android device to your machine. Remove any previous installed apk file from the Android device. Run adb install name of the apk file. If for some reason the above command return with adb command not found.


You can trust particular certificate at runtime. Just download it from server, put in assets and load like this using ssl-utils-android:

OkHttpClient client = new OkHttpClient();
SSLContext sslContext = SslUtils.getSslContextForCertificateFile(context, "BPClass2RootCA-sha2.cer");
client.setSslSocketFactory(sslContext.getSocketFactory());

In the example above I used OkHttpClient but SSLContext can be used with any client in Java.

If you have any questions feel free to ask. I'm the author of this small library.

Handling custom SSL Certificates on Android and fixing , Browsers and versions affected Android native app Description All Trust anchor for certification path not found #586 getInstance(tmfAlgorithm); tmf.init(​keyStore); // Create an SSLContext that openConnection(); if (connection instanceof HttpsURLConnection) { ((HttpsURLConnection) connection). dans les téléphones en Gingerbread, je reçois toujours cette erreur: Trust Anchor not found for Android SSL Connection, même si je me configure pour compter sur mon certificat. voici le code que j'utilise (en langue Scala):


Update based on latest Android documentation (March 2017):

When you get this type of error:

javax.net.ssl.SSLHandshakeException: java.security.cert.CertPathValidatorException: Trust anchor for certification path not found.
        at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl.startHandshake(OpenSSLSocketImpl.java:374)
        at libcore.net.http.HttpConnection.setupSecureSocket(HttpConnection.java:209)
        at libcore.net.http.HttpsURLConnectionImpl$HttpsEngine.makeSslConnection(HttpsURLConnectionImpl.java:478)
        at libcore.net.http.HttpsURLConnectionImpl$HttpsEngine.connect(HttpsURLConnectionImpl.java:433)
        at libcore.net.http.HttpEngine.sendSocketRequest(HttpEngine.java:290)
        at libcore.net.http.HttpEngine.sendRequest(HttpEngine.java:240)
        at libcore.net.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:282)
        at libcore.net.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:177)
        at libcore.net.http.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:271)

the issue could be one of the following:

  1. The CA that issued the server certificate was unknown
  2. The server certificate wasn't signed by a CA, but was self signed
  3. The server configuration is missing an intermediate CA

The solution is to teach HttpsURLConnection to trust a specific set of CAs. How? Please check https://developer.android.com/training/articles/security-ssl.html#CommonProblems

Others who are using AsyncHTTPClient from com.loopj.android:android-async-http library, please check Setup AsyncHttpClient to use HTTPS.

Trust anchor for certification path not found · Issue #586 · webrtc , My app is working fine on Android >= 6 version but it throws CertPathValidatorException: Trust anchor for certification path not Connect with others SSL cert for Original and other 2 urls are from different provides as  It could be because you have a certificate from a new CA that isn't yet trusted by Android or your app is running on an older version without the CA. More often a CA is unknown because it isn't a public CA, but a private one issued by an organization such as a government, corporation, or education institution for their own use.


Replying to very old post. But maybe it will help some newbie and if non of the above works out.

Explanation: I know nobody wants explanation crap; rather the solution. But in one liner, you are trying to access a service from your local machine to a remote machine which does not trust your machine. You request need to gain the trust from remote server.

Solution: The following solution assumes that you have the following conditions met

  1. Trying to access a remote api from your local machine.
  2. You are building for Android app
  3. Your remote server is under proxy filtration (you use proxy in your browser setting to access the remote api service, typically a staging or dev server)
  4. You are testing on real device

Steps:

You need a .keystore extension file to signup your app. If you don't know how to create .keystore file; then follow along with the following section Create .keystore file or otherwise skip to next section Sign Apk File

Create .keystore file

Open Android Studio. Click top menu Build > Generate Signed APK. In the next window click the Create new... button. In the new window, please input in data in all fields. Remember the two Password field i recommend should have the same password; don't use different password; and also remember the save path at top most field Key store path:. After you input all the field click OK button.

Sign Apk File

Now you need to build a signed app with the .keystore file you just created. Follow these steps

  1. Build > Clean Project, wait till it finish cleaning
  2. Build > Generate Signed APK
  3. Click Choose existing... button
  4. Select the .keystore file we just created in the Create .keystore file section
  5. Enter the same password you created while creating in Create .keystore file section. Use same password for Key store password and Key password fields. Also enter the alias
  6. Click Next button
  7. In the next screen; which might be different based on your settings in build.gradle files, you need to select Build Types and Flavors.
  8. For the Build Types choose release from the dropdown
  9. For Flavors however it will depends on your settings in build.gradle file. Choose staging from this field. I used the following settings in the build.gradle, you can use the same as mine, but make sure you change the applicationId to your package name

    productFlavors {
        staging {
            applicationId "com.yourapplication.package"
            manifestPlaceholders = [icon: "@drawable/ic_launcher"]
            buildConfigField "boolean", "CATALYST_DEBUG", "true"
            buildConfigField "boolean", "ALLOW_INVALID_CERTIFICATE", "true"
        }
        production {
            buildConfigField "boolean", "CATALYST_DEBUG", "false"
            buildConfigField "boolean", "ALLOW_INVALID_CERTIFICATE", "false"
        }
    }
    
  10. Click the bottom two Signature Versions checkboxes and click Finish button.

Almost There:

All the hardwork is done, now the movement of truth. Inorder to access the Staging server backed-up by proxy, you need to make some setting in your real testing Android devices.

Proxy Setting in Android Device:

  1. Click the Setting inside Android phone and then wi-fi
  2. Long press on the connected wifi and select Modify network
  3. Click the Advanced options if you can't see the Proxy Hostname field
  4. In the Proxy Hostname enter the host IP or name you want to connect. A typical staging server will be named as stg.api.mygoodcompany.com
  5. For the port enter the four digit port number for example 9502
  6. Hit the Save button

One Last Stop:

Remember we generated the signed apk file in Sign APK File section. Now is the time to install that APK file.

  1. Open a terminal and changed to the signed apk file folder
  2. Connect your Android device to your machine
  3. Remove any previous installed apk file from the Android device
  4. Run adb install name of the apk file
  5. If for some reason the above command return with adb command not found. Enter the full path as C:\Users\shah\AppData\Local\Android\sdk\platform-tools\adb.exe install name of the apk file

I hope the problem might be solved. If not please leave me a comments.

Salam!

"java.security.cert.CertPathValidatorException: Trust anchor for , Trust anchor for certification path not found, Android - don't automatically reach for a custom trust manager! Basic Authentication in Android Apps with HTTPS and SSL Connection. In this video I explained Automatically generated server certificate and get secure connection between your android app and server.


Android SSL - Certificate not trusted, Https problem: Trust anchor for certification path not found · Support javax.net.​ssl. connectTls(Connection.java:235) at com.android.okhttp. I haven't tried recently; but the issue with setting up the SSL session from inside NativeScript probably is fixed -- If it is you can enable the code TLS/SSL socket setup code here:


Https problem: Trust anchor for certification path not found, CertPathValidatorException: Trust anchor for certification path not Additional info: https://developer.android.com/training/articles/security-ssl  I had a signed certificate which stopped working when I upgraded IOS. I fixed it by adding the intermediate (chain) cert file on the web server. This fixed the problems with IOS but for some reason I still have Android problems, those may or may not be something totally different.


java.security.cert.CertPathValidatorException: Trust anchor for , CertPathValidatorException: Trust anchor for certification path not found. occurred. Im using post method but this error occurs in xamarin forms android . /6825226/trust-anchor-not-found-for-android-ssl-connection. javax.net.ssl.SSLHandshakeException: java.security.cert.CertPathValidatorException: Trust anchor for certification path not found How can I resolve that about this Exception. Up to 2 attachments (including images) can be used with a maximum of 524.3 kB each and 1.0 MB total.