android - SQLCipher can't open database after apprestart -


what i'm trying do

in app i'm creating we're saving secret user data needs encrypted. we'd use sqlcipher. we've implemented in documentation.

now i'm facing following problem. if create database first time can read , write db. if restart app i'm unable read database again , tons of errors. doing wrong?

here's code of our sqliteopenheler:

public database (context ctx){         super(ctx, database_name, null, database_version);          try{             mkeysaver = new keysaver(ctx);             file databasefile = ctx.getdatabasepath(database.database_name);              if(databasefile.exists()){                 sqlitedatabasehook hook = new sqlitedatabasehook(){                     public void prekey(sqlitedatabase database){                         database.rawexecsql("pragma kdf_iter = 5000");                     }                     public void postkey(sqlitedatabase database){}                 };                 mdb = sqlitedatabase.openorcreatedatabase(databasefile, mkeysaver.getkey(), null, hook);              } else {                 databasefile.mkdir();                 mdb = sqlitedatabase.openorcreatedatabase(databasefile, mkeysaver.getkey(), null);                 mdb.setlocale(locale.german);             }          } catch (exception e){             log.d("database", "exception " + e);         }     }       @override     public void oncreate(sqlitedatabase sqlitedatabase) {         try{             sqlitedatabase.execsql(create_table_account);             sqlitedatabase.execsql(create_table_assignment_details);             sqlitedatabase.execsql(create_table_assignment_overview);             sqlitedatabase.execsql(create_table_assignment_upload);             sqlitedatabase.execsql(create_table_assignment_user);             sqlitedatabase.execsql(create_table_account);         }catch (exception e){             log.e("database", "exception " + e);         }      }      @override     public void onupgrade(sqlitedatabase sqlitedatabase, int oldversion, int newversion) {         if (oldversion >= newversion) {             return;         }          // falls ein db-update stattfinden sollte code hier      }

and that's how instantiate it:

sqlitedatabase.loadlibs(mcontext.getapplicationcontext()); mkeysaver = new keysaver(mcontext); mdb = new database(mcontext.getapplicationcontext()); db_password = mkeysaver.getkey(); mdatabase = mdb.getwritabledatabase(db_password);

and logcatdump:

04-23 09:00:44.723    2405-2405/ivo e/database﹕ create table android_metadata failed 04-23 09:00:44.726    2405-2405/ivo e/database﹕ failed setlocale() when constructing, closing database     net.sqlcipher.database.sqliteexception: file encrypted or not database             @ net.sqlcipher.database.sqlitedatabase.native_setlocale(native method)             @ net.sqlcipher.database.sqlitedatabase.setlocale(sqlitedatabase.java:2092)             @ net.sqlcipher.database.sqlitedatabase.<init>(sqlitedatabase.java:1958)             @ net.sqlcipher.database.sqlitedatabase.opendatabase(sqlitedatabase.java:875)             @ net.sqlcipher.database.sqlitedatabase.openorcreatedatabase(sqlitedatabase.java:907)             @ net.sqlcipher.database.sqliteopenhelper.getwritabledatabase(sqliteopenhelper.java:132)             @ net.sqlcipher.database.sqliteopenhelper.getreadabledatabase(sqliteopenhelper.java:197)             @ net.sqlcipher.database.sqliteopenhelper.getreadabledatabase(sqliteopenhelper.java:184)             @ ivo.database.adapter.accountadapter.checkaccountpassword(accountadapter.java:79)             @ ivo.activity.loginactivity.attemptlogin(loginactivity.java:168)             @ ivo.activity.loginactivity$2.onclick(loginactivity.java:88)             @ android.view.view.performclick(view.java:4756)             @ android.view.view$performclick.run(view.java:19748)             @ android.os.handler.handlecallback(handler.java:739)             @ android.os.handler.dispatchmessage(handler.java:95)             @ android.os.looper.loop(looper.java:135)             @ android.app.activitythread.main(activitythread.java:5254)             @ java.lang.reflect.method.invoke(native method)             @ java.lang.reflect.method.invoke(method.java:372)             @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:898)             @ com.android.internal.os.zygoteinit.main(zygoteinit.java:693) 04-23 09:00:44.730    2405-2405/swisscom.ivocore e/sqliteopenhelper﹕ couldn't open ivo.db writing (will try read-only):     net.sqlcipher.database.sqliteexception: file encrypted or not database             @ net.sqlcipher.database.sqlitedatabase.native_setlocale(native method)             @ net.sqlcipher.database.sqlitedatabase.setlocale(sqlitedatabase.java:2092)             @ net.sqlcipher.database.sqlitedatabase.<init>(sqlitedatabase.java:1958)             @ net.sqlcipher.database.sqlitedatabase.opendatabase(sqlitedatabase.java:875)             @ net.sqlcipher.database.sqlitedatabase.openorcreatedatabase(sqlitedatabase.java:907)             @ net.sqlcipher.database.sqliteopenhelper.getwritabledatabase(sqliteopenhelper.java:132)             @ net.sqlcipher.database.sqliteopenhelper.getreadabledatabase(sqliteopenhelper.java:197)             @ net.sqlcipher.database.sqliteopenhelper.getreadabledatabase(sqliteopenhelper.java:184)             @ ivo.database.adapter.accountadapter.checkaccountpassword(accountadapter.java:79)             @ ivo.activity.loginactivity.attemptlogin(loginactivity.java:168)             @ ivo.activity.loginactivity$2.onclick(loginactivity.java:88)             @ android.view.view.performclick(view.java:4756)             @ android.view.view$performclick.run(view.java:19748)             @ android.os.handler.handlecallback(handler.java:739)             @ android.os.handler.dispatchmessage(handler.java:95)             @ android.os.looper.loop(looper.java:135)             @ android.app.activitythread.main(activitythread.java:5254)             @ java.lang.reflect.method.invoke(native method)             @ java.lang.reflect.method.invoke(method.java:372)             @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:898)             @ com.android.internal.os.zygoteinit.main(zygoteinit.java:693)

you might need table android_metadata (key,value)=('locale',your locale)


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