Android :: Certificates From Package
Mar 23, 2009
I'm looking for a way to get the certificates from a package that are used to sign it. Using the PackageInfo class it is possible to get the signatures. But what can I do with signatures if I don't get the public keys to verify these.
The next question I have where does the PackageInstaller verify the signed APK file? The PackageParser class loads the APK file into a JarFile object but does this automatically verify the signature?
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Feb 12, 2009
i work on custom Application Manager and try to get the disk usage of installed package. So PackageManager.getpackageSizeInfo was removed from SDK on 0.9->1.0 update android.content.pm. PackageStats(String pkgName)(cacheSize, codeSize, dataSize) returns always "0" Size of phys. file (java.io.File) in "/data/app" seems wrong/not completely. Has anybody any solution to get the total disc space used by an installed package?
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Oct 23, 2008
I'm using the Email application. I get a "non-trusted certificate" error when setting up mail for IMAP. This is expected because I generally self-sign my certs. Though, what is not expected is that there seems to be no mechanism to accept non-trusted server certificates. No self-sign certs? That's a deal breaker. There has got to be a work-a-round.
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Aug 12, 2010
Is there a way to view the Pre-Installed Root CA SSL Certificates in the Android OS? That is VeriSign, GeoTrust, Etc.
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Apr 21, 2010
From the signing documentation at http://developer.android.com/intl/zh-TW/guide/publishing/app-signing.html:
When the system is installing an update to an application, if any of the certificates in the new version match any of the certificates in the old version, then the system allows the update.
This indicates that an application can be signed with multiple certificates.
This is an interesting option to allow multiple entities to sign an application. e.g: A system application which was initially signed by the device's manufacturer. Further updates could be signed by the developer.
Am I misreading the documentation or is this really possible? If so, how?
Is there any other way for an application to support different certificates and with that, having two or more entities sign it?
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Jun 25, 2010
I am using httpclient for my android app and I have a local site which has a few https pages. Since default httpclient doesnot allow self-signed certificates I am using "EasySSLFactory" and "EasyX509TrustManager", which are mentioned in httpclient documentation.
CODE:.......
The problem is if I use this SSLFactory in my android app, I am getting correct response from my site's https pages, but I get "SSL handshake failure: I/O error during system call, Unknown error: 0" for sites such as "gmail.com", "ymail.com". If I don't use. "EasySSLSocketFactory" I get response from these sites but get exception for my site.
This page fetch code works fine as a standalone java application.
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Mar 24, 2010
I recently formatted my computer and updated to Windows 7. I backed up my keystore and tried to sign my apk with it but it gave me an error that said my certificate expires in 22yrs. which is just shy of what the market requires to upload the apk. So now I am stuck not being able to update my app... Is there a way to extend the lifetime of certificates so that I can update my app?
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Oct 31, 2010
I'm working on an Android app that requires both client and server certificate authentication. I have an SSLClient class that I created that works beautifully on regular desktop Java SE 6. I've moved it into my Android project and I'm getting the following error: "KeyStore JKS implementation not found".I've looked online a bit and it looks like there's a possibility that Java Keystores are not supported on Android (awesome!) but I have a feeling there's more to it than that because none of the sample code I've found resembles what I'm trying to do at all. Everything I found talks about using an http client rather than raw SSL sockets. I need SSL sockets for this application.
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Oct 7, 2010
I'm attempting to override an Android View class to tweak the functionality just slightly. But I need to modify a field that does not have a setter method. I've placed the subclass in a package called android.widget. Why can't I access any of the package-private member fields? I notice that the compiler says they "cannot be resolved," rather than not being accessible. Does this have something to do with how Android.jar is built?
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Nov 28, 2009
My work has free Wifi available for patients and whoever but you must first sign in on a main page it redirects to if your not already. Here to sign in you must accept a security certificate to be able to do this. It worked on my Droid the first day I did this and now I cannot get it to work, says it cannot redirect with no connection. Now this has happened before with my laptop and I just remove the certificate and it gets a new one and off I go. My question is where can I find these so I can delete it on the droid?
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Jan 14, 2010
I tried very hard but could not find an answer anywhere. I am attempting to install a security certificates (a pfx file) to get wifi access in my office but in the Samsung Galaxy (at least the one selling in Israel) I dont have an add a certificate option in the advanced wifi settings menu.
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Oct 23, 2009
I did some modification about the java code and AndroidManifest.xml of "com.android.settings" package.
Then I ran the emulator like this: make; lunch 1; emulator &
When PackageManagerService was scanning the "/system/app/Settings.apk" packages at boot time, it reported an error that "com.android.settings has no certificates at entry AndroidManifest.xml".
I guess my modified "Settings.apk" could not pass the signature verify.
How can I run my modified "Settings.apk" successfully?
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Apr 15, 2010
Trying to get HTTPS working with the HttpClient. I can't seem to find an example anywhere that works for me. Basically, I want my client to accept any certificate (because I'm only ever pointing to one server) but I keep getting a javax.net.ssl.SSLException: Not trusted server certificate exception.
So this is what I have:
CODE:.............
And here's the error I'm getting:
CODE:................
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Oct 6, 2010
I am attempting to connect to a local HTTPS server using the apache DefaultHttpClient on a Android device.
CODE:.......
I am getting an error of "javax.net.ssl SSLException: Not trusted server certificate" when the .execute runs. I want to simply allow any certificate to work, regardless of if it is or is not in the android key chain.
I have spent about 40 hours researching and trying to figure out a workaround for this issue. I have seen many examples of how to do this but none so far have worked in Android; they seem to only work for JAVA. Does anyone know how to configure, or override the certificate validation used by the Apache HttpClient in Android so that it will just approve all certificates for a DefaultHttpClient connection?
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Jan 21, 2010
Where the SSL certificates are stored in Android? How to know whether they are outdated? I am getting problem with setting up automatic setup in email application.
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Sep 16, 2009
I have installed the new SDK 1.6r1 on Windows and I realise that 1.6 does not included the older APIs so ran the android.bat tool to download them. The "available packages" only offer me SDK Platform Android 1.1 API 2; I was also hoping to download 1.0 API 1 as I am developing an application that only needs very basic functionality and I would like to be compatible with as many devices as possible.
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Oct 21, 2010
Guys I found this today http://innovator.samsungmobile.com/galaxyTab.do and was able to install the package into my avd manager and I now have the Galaxy Tab emulator running.
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Aug 27, 2009
Just wanted to know, if we participate in ADC2 will we be required to use a different package name (to the ADC one) for our app *after* the competition is over? Reason for this is that I'm wondering whether I should assign a separate package name now for ADC and keep my standard one for later.
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Nov 23, 2009
I have splitted my Android project in 2 packages, lets say: test.current and test.another. From an activity in test.current I want to start an activity in the package test.another
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Nov 1, 2010
does anyone know how you can find the package name for a particular app already installed on your handset? They usually go like: com.example.prototype(Where the folder prototype cotains the runnable files)Trying to use the intent function to launch an app within an app.Was told putting this code in the onclicklistener method for the button would allow this, yet to test it successfully. I reckon it works, just need to figure out package name of the app I wanna launch.Intent i = new Intent(Intent.ACTION_MAIN);i.addCategory( Intent.CATEGORY_LAUNCHER); i.setPackage("com.otherapp.package"); startActivity(i);Want to press a button, to launch the "com.otherapp.package"
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Jul 9, 2010
If i create a service and in it use the method context.getPackageName() or context.getPackageCodePath(). If i then compile that service into a .jar file and someone else includes it in their app will those methods return the original package of the service or that package that they have been included in?
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Jun 30, 2009
Is there any method to get all android package name?
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May 14, 2010
I am trying to put an XML file containing over 1,000 different fish into my app so that I can read this file, create an Array and attach that to the AutoCompleteTextView. I first tried to create a string-array in a resource file but apparently the array was to large and would never actually load anything after a certain number of values. So want I want to do is add that XML file to a place in my app that I can access it and read from it. Whenever I try to bring the XML file in I get all these errors in Eclipse. So how do I add this file and how do I reference it later in order to access it? I could just store it online and access it that way but I think it is a little bit of a waste to have to access the net for that if I can instead just add it to my package setup someplace.
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Jun 2, 2010
I've written an Android app wich various abstract classes that perform useful functions. These functions could be leveraged in other apps. I want to share a class module with another programmer, but I don't want to share the source code. I would like to share a .class file but I'm not sure how to do the following:
Compile an Android .java file into .class What does the receiver of the .class file have to do to use that .class in their project? (using Eclipse environment)
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Apr 5, 2009
I need to use the transform package (transformer, transformfactory, etc.) so that I can convert an xml node to a new document. However, when I try to import the package, it says that it cannot be resolved. Are you not allowed to use this package on Android?
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Aug 18, 2010
I am working on windows with JDK, Android SDK and eclipse set successfully. I download the com.android.sdk package from: http://android.git.kernel.org/?p=platform/packages/apps/Stk.git;a=summary
But when I import the project to the eclipse, errors happen everywhere. Mostly is about the com.android.internal.telephony.gsm.stk.something cannot be imported. I googled to find the reason. It only says because of the these packages is internal package and cannot import with standard SDK. So the question is: How can I compile this project? Should I make a linux environment and get the whole android source code to do this?
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May 31, 2010
Once I have created a project with the Android wizard, how do I change the API Package from say 1.5 to 2.1 ?
I'm not referring to the application xml where the minimum API is set, I'm referring to the jar's included in my project to the Google APIs.
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Jun 29, 2010
I've been playing around with android app and widgets. have a few things running. but one thing i cant seem to figure out is how to package more than 1 widget. say i wanted to release my set of widgets? where in the manifests can i do this?
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Feb 24, 2009
How do I get the Package Name if I am having the PID of the process. For example, if I want to output a list of currently running processes, I can get the PIDs but how do I get the names of the PIDs?
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Feb 25, 2009
I'm looking for ideas on how to have a package that is not distributed through the Android Market (it's in closed Beta) upgrade itself.
I had hoped to download the .apk file from my web server and then use PackageManager.installPackage(), but that requires the INSTALL_PACKAGES permission, which is apparently not available to packages not installed in /system/app.
Best idea I have now is to launch an Intent to download the .apk (via web browser), but that would require the user to then manually install the package, which is unkind.
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