I'm implementing a feature that requires a password, is it safe to store using SharedPreferences.Editor? Is there another recommended way for storing passwords?
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Many of my users have requested a password protection for various data elements in my database. Unfortunately, one of my existing features is backing up the database to a public location (SD Card) for data redundancy, so my database isn't secure.
So my question is two-fold.
How can I encrypt or secure a database on android?
How can I store user created passwords on the device in a secure, inaccessible way.
few months ago I read somewhere that android stores the wifi passwords in plain text (seems to be known since 2010:[URL] Because I don't want my wifi password to be stored that way, I searched for a way to store the wpa passphrase. This wasn't difficult, because android usese wpa_supplicant, means I just had to find out my passphrase and replace the plain key in /data/misc/wifi/wpa_supplicant.conf with it. Everything still works fine and my phone is able to connect to wifi.
Now my question is: is there a way to store every new wifi password this way? It's annoying to have to edit the wpa_supplicant.conf file manually. One problem is, that it seems like android doesn't have the wpa_passphrase binary included, even if the source code seems to exist in the wpa_supplicant repository ( [URL] how to build the code (I'm not familiar with the ndk), I could try writing an app, which replaces all plain text passwords with the passphrases. But it would be awesome, if it were possible to integrate this feature in a custom rom, so no more passwords are stored plain text.
When purchasing the eris I had it in mind to possibly trade stocks from scottrade mobile, or pay my cell phone bill via it. How secure is this device to put important passwords into it?
View 3 Replies View RelatedMy problem is using SharedPreferences. I just created a <PreferenceScreen> which holds inside a <ListPreference> with an array of 5 different values. Very simple! The array of values are different numbers: 1, 2, 5, 10 and 30.Every time I change the setting, the application remembers that and I can see the setting I chose when I access the preferences once again (as an user). Now, in the code, when I retrieve the setting using the key (e.g. getString("delay", default_delay);), I always get the default value, it seems that the SharedPreferences does not find my setting. Can anybody help? I have read about SharedPreferences.getEditor().commit(), but that should be used only when changing settings from the code, not from the UI preferences.
View 2 Replies View RelatedI'm just wondering, if there is a limit on amount of data I can store in SharedPreferences. ( and if yes, what limit).
View 7 Replies View RelatedI make an app with some activities.
The first is the login.
If I login correctly, I pass to the second activity, and I want download a stream (like twitter), but I cannot keep the session.
I saved user & pass in sharedpreferences, how can i keep the session through all activities?
Now that we can Examining sqlite3 Databases from a Remote Shell, is it possible to examine SharedPreferences from adb shell? Since it would be much more convenient to examine and manipulate SharedPreferences from command line when debugging. Or put in another way, in what files SharedPreferences are saved, and how to view and modify these files?
View 1 Replies View RelatedI am trying to save the date of file parsing, so that when next time user, opens the application, the date can be checked against the last parsing date. I am using shared preference to save the data and retrieve it, but getting error. here is the code:
SharedPreferences settings = getPreferences(0);
String today = new Date(System.currentTimeMillis()).toString();
SharedPreferences.Editor edit = settings.edit();
System.out.println("******** Today : " + today);
edit.putString("lastdate", today);
String fetch = settings.getString("lastdate", "0");
System.out.println("******** Fetch : " + fetch);
txtTest.setText(fetch);
but I am getting null pointer error. am I missing something?
I've just tracked down a weird bug in our app where SharedPreferences were failing between power cycles of the phone.
It turns out that one of the strings we were saving had an "&" in it. When I look at the xml that is being persisted I see that this is being encoded as && instead of just &
This means that when you come to read the settings back you don't get any values at all. Is this a known issue? I see lots of posts about preferences dissappearing, but nothing about this.
How do I delete SharedPreferences data for my application?
I'm creating an application that uses a lot of web services to sync data. For testing purposes I need to wipe out some SharedPreferences values when I restart the app.
If not, is there any workaround? I have an array list of objects that have a name and an icon pointer. I do not want to use a database.
View 2 Replies View RelatedI'm trying to prepare an update to one of my apps and I just realized that the updated version cannot read or write over the previous version's SharedPreferences.
Some details: * I'm using the 1.6 SDK and compiling for 1.5.3. * My androidmanifest.xml does not have a sharedUserId (I didn't think I need one if I was not sharing data between different apps).
How to reproduce: * Install my current app from the market * Run the app * Exit and save the setting - invoking SharedPreferences Editor commit (it's using MODE_PRIVATE) * Now install my new update (via a browser download) * Run the app * Everything works fine * Exit & Save *** Now reboot the phone * Run the app again ==> Can no longer access old data or write over it!!
Did I do something wrong? Is it because of the sharedUserId thing? Is it because of the way I'm testing - via market then browser? Why is LogCat reporting a UID change? ==> mismatched uid: 10031 on disk, 10046 in settings; Can I recover from this? I don't want to delete all of my users' data. error ...
I need to save my bank account numbers, passwords and some credit card numbers. I do not need an app that is all that high tech and complicated. I would just like something that is protected via a password so that if my phone is lost/stolen the finder cannot access this information. I tried Keepass but I didn't really like it as I was unable to change the entry fields, ect. It would be nice to have the ability to have this information backed up somewhere.
View 10 Replies View RelatedI'm having a hard time figuring out the best way to pass simple values from onPause and onResume in the Android activity lifecycle. I understand how to use get and put extra bundles for activity to activity data, but does that work for passing data between the same activity? Should i used SharedPreferences?
View 1 Replies View RelatedDoes somebody knows where the file with the actual stored SharedPreferences is located?
View 1 Replies View RelatedI want to change the android sharedPreferences save path,the sharedPreferences save in /data/data/xxx.xxx.xxx/shared_prefs,i want to change path to /sdcard. how i do?
View 1 Replies View RelatedFrom what I can incur out of the SharedPreferences documentation, I can update a preference, add one or clear all preference values in a shared preference file.
But I want to completely clear everything inside a shared preference file, not just the values, but the preferences they refer to as well.
Currently, I'm using the following code across all of my activities in my app to store application level variables and carry values between activities..
prefs = this.getSharedPreferences("MyPrefs", Context.MODE_PRIVATE);
I didn't have a PreferenceActivity prior to this, but now I do and I am looking to store a few user prefs from this new PreferenceActivity in the same sharedPreferences tag, "MyPrefs".
I know I can access the PreferenceActivity SharedPrefs from my activities via
prefs = PreferenceManager.getDefaultSharedPreferences(this);
but I would like those values saved to my current sharedPreferences tag, "MyPrefs", but I'm not sure how to do this.
On my Blackberry I had an app to save all my passwords and credentials and then open them up when I wanted to. It had its own master password.
View 10 Replies View RelatedI am very skeptical about using outside programs that did not come program with my Droid. When I click to use Better Keyboard, it states that certain things I type, such as passwords can be "recorded." Has there ever been any reports of Better Keyboard stealing passwords or whatnot? I feel 100% safe with the pre-loaded software, but with programs on the app store I am scared to use anything that I enter person information, such as credit cards. How safe can this program be?
View 3 Replies View RelatedI currently use about 6 or 7 different passwords or pin numbers and often forgoet them.
Is there an app in which i can save all of my passwords for various things and then have one password for that app?
My GF is getting a new phone and we are having real trouble remembering her Google mail password!
We have tried all the recovery options on-line, but Google are pretty useless at recovering passwords and its driving me insane!
Now, on her old phone, it all still works, and Im just wondering if there is anyway at all as to recover or dig out the password from in the phone somewhere!
I love how SharedPreferences work in android and I would like to know if there is an easy way to save them to another file so I could load a previous instance of the prefs and vice versa. Basically when you load this file, all the preferences would change to how you had it before at once. I want to be able to swap 3 or 4 different versions of the same pref keys in this way. Is there an easy way to do this?
View 1 Replies View RelatedWe have an online multiplayer game that saves some login information in the SharedPreferences. Our app is copy protected and everything was going really well until this weekend when we released an update for it. It seems that at least some of the people are having their SharedPreferences deleted when they updated too the new app. As you can imagine our users are furious because they're all loosing their profiles, and our ranking is dropping fast.
We've tried to reproduce this a hundreds ways but are unable. We're wondering if this could be related to installing a copy protected app over a copy protected app? Since that's the only situation we haven't tested and can't test.
I want to store a time value and need to retrieve and edit it. Can somebody guide me here with a sample code/project please?
View 2 Replies View RelatedWhy are my SharedPreferences suddenly deleted, after I updated my game in the Market?
Here is the logcat...
I have a Droid Eris. I've used eBuddy off and on for the last 3 or 4 months and really liked it. I just had to have my handset replaced so I was about to download eBuddy again. But when I went to read the commnets, I saw a bunch about eBuddy stealing FaceBook passwords. Is this true? What is the best way to investigate something like that? I would really like to keep using eBuddy.
View 8 Replies View RelatedHow can I retrieve SharedPreferences for a widget during an update pushed by a broadcast receiver?I have a static BuildUpdate method on my AppWidgetProvider, but I cannot work out how to retrieve my shared preferences as I do not have an appropriate context.
View 12 Replies View RelatedMy first android application has to do with showing activities at different times. All works fine ... except that when I retrieve the shared preferences in an activity activated from the notification manager, all my options are reset to default values.
Similarly, when I try to reinstall an alarm after the phone is switched off, all the previously stored shared preferences options are non-existent.Is there something special that has to be set in the manifest, or do I have to retrieve the context in a special manner? from a broadcastReceiver?