cI have encrypted and decrypted a login password which is stored in the Android Keystore. On Android 9, I observed that the app crashes when trying to decrypt the password(I am not able to reproduc...

I have an app which is signed and several keystore files. I'd like to update the app, so I need to find out which one of keys was used. How can I match which keystore was used to originally sign m...

I'm replacing an Android app on a client Google Play account that was previously maintained by another developer. I've got the following things to work with: a PEM file with a BEGIN PRIVATE KEY...

We have generate AndroidKeystore and it's working fine but randomly facing below issue. After App reinstall its working fine. java.security.KeyStoreException: Failed to store private key Below ...

How can I set different signing configs for different variants? For instance, we currently have the buildtypes Debug/Beta/Release with 2 flavors, free and paid, resulting in 6 variants. To make it...

When you sign and distribute your Xamarin Android apps the wizard helps you create keystore for your app. However, wherever I looked on my mac I could not find the actual .keystore file anywhere. S...

I have an app that generates a key for encryption/decryption and it is working just fine. I store my key in KeyStore and IV as first 12B in encrypted file saved on external storage. When I want to ...

I need to generate a RSA 2048 Keypair, then save it, and recover it if it exists. At this moment, I have this: SecureRandom random = new SecureRandom(); RSAKeyGenParameterSpec spec = new RSAKeyGenP...

In my Android app I insert an item into KeyStore, and occasionally I get a crash related to InvalidKeyException: Keystore operation failed / KeyStoreException: Key not found. Usually the operation ...

I can't signed my apk with the existing keystore. Its giving me this error when signing: com.android.ide.common.signing.KeytoolException: Failed to read key Cannot recover key So, by following thi...

I'm seeing this in my crash logs a lot when prompting the fingerprint dialog to authenticate the user. java.security.UnrecoverableKeyException: Failed to obtain information about key at ..my code...

I use a SecretKey to encrypt sensitive data in my application. Currently I am storing my SecretKey in Base64 encoded format in DB or SharedPrefs which is not a safe place to store Secret on a roote...

I'm following guideline how to sign Android apk with Jenkins. I have parametrized Jenkins job with KSTOREPWD and KEYPWD. A part of Jenkins' job configuration (Build->Execute shell) is to take those...

Trying to create an android app with Facebook integration, I've gotten to the part in the docs where you have to generate a key hash file, it specifies to run the following code keytool -exportcer...

I have an app that uses AndroidKeystore, and I wanted to cleanup my app specific key entries from Android Key Store, when my app got uninstalled(so, app does not have much control to call deleteEnt...

I am using Ubuntu for Android Development. I launch Android Studio as a root user every time. So my SDK files are all located at /root/Android/Sdk. I also have my debug.keystore file located at ...

My app uses Android 6.0 Fingerprint API to protect AES key in the Android KeyStore. The stored key can be used only when user is authenticated by fingerprint sensor because the KeyGenParameterSpec ...

I have got myself into a slightly annoying situation with Android keystore files. Currently I have a few different apps each signed with a different keystore file. Kinda like this: AppName1.apk s...

As far as I remember, 10 years was the default setting when creating a keystore in Eclipse. I think, about 5 years ago, Android development got kind of mainstream so I expect a lot of apps to be un...

I've tried to generate a key pair using the Google sample (BasicAndroidKeyStore). The only modification I made is setting the setUserAuthenticationRequired(true) in the KeyGenParameterSpec.Builder....

Android has the concept of hardware backed security as TEE and in latest Android i.e., Android Pie devices can have a HSM (Strongbox). 1.What is the actual difference between TEE and HSM? 2.Does ...

Is there a way to persist data across multiple reinstallations of the app other than using Expo SecureStore. I need the unique identifier of the app (UUID) to persist across multiple installations...

I'm currently working on an Android client of my encryption software, but I kept getting IllegalBlockSizeException, and e.getMessage() always returns null Here's the code I used to find the proble...

Android 6.0+ has a KeyInfo class to get info on a key saved in the AndroidKeyStore. On the KeyInfo class, we have isInsideSecureHardware() and isUserAuthenticationRequirementEnforcedBySecureHardwar...

Regarding Android Keystore system article, Key material never enters the application process. When an application performs cryptographic operations using an Android Keystore key, behind the scen...