Crash on app update - built with different machine

SQLCipher Issues
1

Hi all,

Having a bit of a weird issue where my app is crashing after building an update with a new machine. If I build on the same machine and update there are no issues, the code is exactly the same (it’s in a repo) so I can’t figure out what would be causing this…

`07-19 15:09:22.207: E/AndroidRuntime(27799): FATAL EXCEPTION: main
07-19 15:09:22.207: E/AndroidRuntime(27799): Process: com.excointouch.mobilize.vec10737, PID: 27799
07-19 15:09:22.207: E/AndroidRuntime(27799): java.lang.RuntimeException: Unable to create application com.excointouch.mobilize.vec10737.vec10737Application: net.sqlcipher.database.SQLiteException: file is encrypted or is not a database
07-19 15:09:22.207: E/AndroidRuntime(27799): at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4650)
07-19 15:09:22.207: E/AndroidRuntime(27799): at android.app.ActivityThread.access$1500(ActivityThread.java:157)
07-19 15:09:22.207: E/AndroidRuntime(27799): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1434)
07-19 15:09:22.207: E/AndroidRuntime(27799): at android.os.Handler.dispatchMessage(Handler.java:110)
07-19 15:09:22.207: E/AndroidRuntime(27799): at android.os.Looper.loop(Looper.java:193)
07-19 15:09:22.207: E/AndroidRuntime(27799): at android.app.ActivityThread.main(ActivityThread.java:5398)
07-19 15:09:22.207: E/AndroidRuntime(27799): at java.lang.reflect.Method.invokeNative(Native Method)
07-19 15:09:22.207: E/AndroidRuntime(27799): at java.lang.reflect.Method.invoke(Method.java:515)
07-19 15:09:22.207: E/AndroidRuntime(27799): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:940)
07-19 15:09:22.207: E/AndroidRuntime(27799): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756)
07-19 15:09:22.207: E/AndroidRuntime(27799): at dalvik.system.NativeStart.main(Native Method)
07-19 15:09:22.207: E/AndroidRuntime(27799): Caused by: net.sqlcipher.database.SQLiteException: file is encrypted or is not a database
07-19 15:09:22.207: E/AndroidRuntime(27799): at net.sqlcipher.database.SQLiteDatabase.native_setLocale(Native Method)
07-19 15:09:22.207: E/AndroidRuntime(27799): at net.sqlcipher.database.SQLiteDatabase.setLocale(SQLiteDatabase.java:2102)
07-19 15:09:22.207: E/AndroidRuntime(27799): at net.sqlcipher.database.SQLiteDatabase.(SQLiteDatabase.java:1968)
07-19 15:09:22.207: E/AndroidRuntime(27799): at net.sqlcipher.database.SQLiteDatabase.openDatabase(SQLiteDatabase.java:901)
07-19 15:09:22.207: E/AndroidRuntime(27799): at net.sqlcipher.database.SQLiteDatabase.openDatabase(SQLiteDatabase.java:948)
07-19 15:09:22.207: E/AndroidRuntime(27799): at net.sqlcipher.database.SQLiteOpenHelper.getReadableDatabase(SQLiteOpenHelper.java:195)
07-19 15:09:22.207: E/AndroidRuntime(27799): at com.excointouch.mobilize.excocore.objects.Subject.load(Subject.java:304)
07-19 15:09:22.207: E/AndroidRuntime(27799): at com.excointouch.mobilize.excocore.objects.Subject.(Subject.java:73)
07-19 15:09:22.207: E/AndroidRuntime(27799): at com.excointouch.mobilize.excocore.MyApplication.getSubject(MyApplication.java:86)
07-19 15:09:22.207: E/AndroidRuntime(27799): at com.excointouch.mobilize.vec10737.vec10737Application.onCreate(vec10737Application.java:38)
07-19 15:09:22.207: E/AndroidRuntime(27799): at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1007)
07-19 15:09:22.207: E/AndroidRuntime(27799): at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4647)
07-19 15:09:22.207: E/AndroidRuntime(27799): … 10 more

Thanks!
`

2

Hi @Emu76

Can you pull the database off the device and attempt to open it via the SQLCipher command line shell?

3

Thanks for the response, we decompiled and discovered the original app has a corrupted encryption key!

4

Hello @Emu76

Thank you for getting back to us, we are glad to hear you identified the issue. I would like to point out that we recommend against hard coding the encryption key within the application as it is trivial to decrypt an application in order to retrieve it.