Android :: How To Get MD5 Fingerprint Of App Certificate Through Code?
Mar 30, 2010
I'd like to be able to get the MD5 fingerprint of the certificate associated with my app (regardless of whether it's the debug cert or the release cert). You're probably aware that in order to get a Google Maps API key, you need to provide them with the certificate fingerprint of your app so that they can match the key with the fingerprint when you use it so as to ensure it's "really you". I've got a similar situation in which I'd like to make requests against a URL (my server) and would like to pass my app's fingerprint as part of the request. I've got no clue which classes I should be looking at.
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Nov 13, 2010
keytool -list -alias androiddebugkey -keystore ~/.android/debug.keystore. -storepass android -keypass android I'm not sure how I can sign my debugkey so that I can use Google Maps. I have verified in Eclipse that this is where my debugkey is stored.
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Oct 14, 2010
I was browsing the web and I saw an application that claimed to scan for user's fingerprints so I thought I should give it a try, the app worked well and I was amazed! does anyone know how this app reads user's fingerprint? how is this possible on android? any tutorial or hints or any open source project? I think this will help a lot of developers thanks maxsap.
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Jan 25, 2010
Anyone else experiencing this problem or know of a solution? I have a Digicert signed https certificate that is throwing an SSLException (Not trusted server certificate). This doesn't make any sense as Digicert is a recognized certificate authority. I can connect to my https url without a problem via IE, Firefox, and Safari so they appear to have no issue with the certificate. Here's the code I'm using. Very simple stuff......................
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Apr 27, 2010
In Android documentation concerning code signing we can read: "By signing multiple applications with the same certificate and using signature-based permissions checks, your applications can share code and data in a secure manner." How exactly such code sharing can be done? Is it possible to release main application and multiple exchangeable plugins then discover them at runtime? What does source code looks like and what are advantages over "standard" intents calls from/to different APK packages?
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Jan 19, 2010
keytool -list -alias alias_name -keystore my-release-key.keystore using above command when i try to create md5 fingerprint. it asks for the password and in password i cannot type any thing. can any one guide me how can i create this i need this finger print to run google map api in android and to obtain googlemap api key from google website.
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Sep 23, 2010
I'm trying to generate the MD5 Fingerprint I will use with the release of my application. I used Eclipse to Compile and Sign my application, which gave me a keystore file and a .apk file. Now i need to generate the MD5 for my MapViews. I tried using the cmd prompt to generate it, but everytime it states that no such file exists. Is there somewhere special i need to be storing the keystore so the keytool has access to it? Also, once i get the MD5 fingerprint, all i have to do is insert it and re-compile and sign my application (the same way i previously did it). Am i correct on that assumption? I've read through the developer docs and I'm still unclear on the whole process.
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Dec 13, 2009
Is there an app or something where i can use my fingerprint to unlock my phone. because i have an htc hero. awsome phone its just i hate the pattern thing.
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Feb 4, 2010
Absolutely LOVELY. Went on beautifully with no bubbles or trapped dirt, though I must explain my application process. I did like most users suggested and ran a steaming hot shower and closed the doors, from here I used a sticky sheet that came with my iPod Touch screen protector that you lay on the device and then peel off to remove all dust, then cleaned all smudges with the microfiber cloth.
To put on, I simply peeled back the top end of the protector only, with the hard card thingy they give you for bubbles in my other hand, then slowly lined up the protector on the top edge and over the earpiece, from here I just squeegeed down the phone, peeling back more and more until it was on, then I got rid of all other little bubbles, and that was that! Perfectly applied!
Thoughts:
So I am very used to anti glare/fingerprint protectors, as I am totally unaccepting of the slightest smudges, so I am very accustomed to the clarity loss, but I do understand that this has been a problem with others who have purchased this protector. I can say that it is not really any worse than any other anti glare protectors, and there's hardly any rainbow effect on white screens, if any at all, which is a big improvement over the lexerd anti glare I had on before this one (we won't get into much of that, just don't ever buy it).
NO fingerprints show, it's amazing, I mean with my other one it would heavily reduce them, but they would still sort of show in direct light, here, NONE! And the matte feeling gives the best feeling and sound when swiping (or should I say Sywpe-ing) on the touch screen.
I HIGHLY recommend this protector if you want the anti-glare and no fingerprints and of course don't mind the recuction in screen clarity, and with the Droid and its beautiful screen, this can be a bit hard, but if you can sacrifice a bit, you will be extremely happy!
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Nov 25, 2010
I ordered 6 from ebay for under ?2.50. For that price, they seem like they wouldn't be as described, so when I receive them, I will let you all know how they are 6 ANTI FINGERPRINT SCREEN FILM Sony Xperia X10 phone on eBay (end time 01-Dec-10 22:30:20 GMT): Just thought i'd let you know because they are very cheap @ under ?2.50 for 6
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Aug 4, 2009
While running i am getting this error in my logcat and my app exiting automatically...
CODE:....................
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Feb 23, 2010
I do not have the keystore that I used when I first created the app and I am wondering if I can create a new certificate using the same details that I used to create the earlier certificate. I have the details available with me.If I do so and update the app using this certificate, will the users get an update notification on their device?
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May 28, 2009
I had configure a Tomcat webserver with SSL and client autification. So I need a clienKey.p12 File to visit the site. If I import the key into Firefox, it works fine.
So I tried to develop a Client from "normal" Java. That works:
CODE:..........
Now I try to develope a Client into Android and I am getting crazy....
Here my two Android implementation:
CODE:...........
I always geht the following Exception:
CODE:................
But the key is the same that I use for the "normal" java Client and for the import into firefox. So the key is valid. But it is signed by me... I don't want to sign it by a commercial Company like verisign.
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May 21, 2010
How do I sign an APK with more than one certificate, so that I can do this when I publish to the Android Market...
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Jul 16, 2010
If I have an apk can I remove the current signing and some how resign it with a different .keystore file and still have the application install?
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Nov 17, 2010
Is there any way to create an X509 certificate on the android device?
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Apr 29, 2010
I need to do is download some basic text-based and image files from a web server that has a self-signed SSL certificate. I have been trying to figure out how to use HttpClient to do this, but getting the SSL to work is a nightmare that seems to be way too much trouble for such a simple task. Is there a better way to perform these file downloads? Perhaps through a WebView or Browser feature? Reinventing the wheel of making a simple HTTPS GET request is a major pain, and is significantly holding up my development schedule.
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Aug 20, 2010
I am receiving this exception, when I try to access a secure site in my App. I am using DefaultHttpClient & BasicHttpParams classes for Http communication..........................
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Sep 14, 2010
My application redirects its users to a known domain (secure.gate2shop.com) that its root certificate doesn't exist on Android devices. Normal PC browsers have no problem accessing the site, but Android browser displays to the user that the certificate is untrusted. I don't want that behavior, not even once, so I'm looking for a way to install this certificate on the device from my app.
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Apr 15, 2009
I have an application that I want to be able to use the userid: android:sharedUserId="android.uid.system", I need to sign the .apk file with the same certificate as the built in system applications, such as the 'Settings' application. I've located the keystore file in my build directory which is: cacerts.bks, and I have the password for this. What I seem to be missing in order to sign my .apk file is the alias fo the keystore. Does anyone know what the alias is? Or is there an easier way to do this that I'm missing.I know this not a standard thing to do, and is perhaps a hack, but I have a client requirement to meet.
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Dec 8, 2009
I just published my first application to the market and the "Just in" display show my icon and app name, but under the app name is shows my birth certificate name! How can I change this? Is it something I am missing in my manifest? I'm sure my mom would it; but me -- not so much.
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Sep 19, 2009
My debug.keystore certificate has expired. Does anyone know how to force Android to regenerate either certificate or the whole directory under
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Feb 23, 2010
I want to connect to a server using ssl/https connection. During handshake between client and the server, I want to have server certificate authentication as well as client certificate authentication. The server certificate authentication is successful. But I don't know how to send client certificate to server for authentication, during the handshake.
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Sep 25, 2010
I access asp.net web service..! My web service name is "https://192.168.1.2/Sample/service.asmx" But it will show the following Exception "javax.net.ssl.SSLException: Not trusted server certificate" This is my code...............
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Feb 9, 2010
I want to use HttpPost over https/ssl. I get 'Not trusted server certificate' error. I've found a lot of posts, seems that many people have similar problems and I've found two suggestions: 1) Change server's certificate. Current certificate is self-signed as localhost.localdomain. Unfortunetly it's not my server and I cannot change the certificate. 2) Use HttpsUrlConnection instead of HttpClient. But I cannot use it because sometimes (when response's code is 401 or 403) I got IOException during getting response code or reading inputstream.
So I've found 3rd solution - use httpclient, when system throws excetpion 'not trusted server certificate' than display warning, inform user that certificate is not trusted and ask if he wants to add this one to the keystore (webbrowser works this way). But I've no idea how to get certificate from the server and add to keystore.
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Oct 7, 2010
I've posted this on Android Security as well, but that group does not appear to have as much activity. Actually I guess my question belongs in this group anyway, even though it touches on some of the security aspects of android packages. My goal is to access the certificate that was used to sign the apk package; and ordinarily, I would do that from inside the program like this
Certificates[] signingCertificates = getClass().getProtectionDomain().getCodeSource().getCertificates();
Unfortunately it appears that getProtectionDomain() returns null on android - according to the specs
http://developer.android.com/reference/java/lang/Class.html#getProtec...
This method might return null (to converse space?) but only for system classes. Since I'm calling this from one of my own classes, I would expect to get a non-null value, but unfortunately not. I have tried from the emulator, and from an application deployed on my phone using adb through a USB cable. I'm using the latest SDK (2.2) and targeting android 1.6. So I guess I have two questions, the first being: why does getProtectionDomain return null, and have anyone had any success using this method from inside an android application. And the second: Is there some other way to access the certificate that a given apk package was signed with (I can live with the restriction that only a given package can know its own certificate).
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Nov 17, 2009
I have been trying to use httpclient to post data on https (secure). I have searched all forums of android but I could not find any solution that works with httpclient on https. I have seen some solutions using HttpsURLConnection. and SSLContext. I would like to go with httpclient not URLConnection as I require to manage cookies and al. I am looking for your exert advice on above matter..............
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Aug 11, 2010
When I open the browser on my n1 the default page is Google.com. I get an certificate error saying the one I am having is not dated correctly. What to do?
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Feb 3, 2010
I am using eclipse android plugins to build a project, But i am getting this error in the console window:
[2010-02-03 10:31:14 - androidVNC]Error generating final archive: Debug certificate expired on 1/30/10 2:35 PM!
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Aug 27, 2013
Reason is i have an apk which works as an installer. When the user installs and opens it, it prompts the user to install another apk (drm free) which was inside the installer apk. However, after signing and zipaligning both with APK Signer tool and Private keys i get this error when installing: an existing package by the same name with a conflicting signature is already installed
basically, both the apk (installer) and apk (theme) have the same package name. When the apk (theme) is installed, it should overwrite the apk (installer).
I think both the installer apk and theme apk should have the same certificates in order to overwrite each other, but i don't know how.
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