CODEWITHSUNDEEP
androidfileinputstreamfileoutputstreamdata-security
Kolopox
Kolopox

Reputation: 406

Store data that nobody can access apart from me in Android

I have a question and I hope you can help me with it.

I created an aplication that need to store a data in the Android device THAT NOBODY CAN ACCESS apart from me in the source code.

I search for it a I found the FileOutpuStream and FileInputStream solution :

private String file="mydata", data;


FileOutputStream fOut = openFileOutput(file,MODE_PRIVATE);
                fOut.write(data.getBytes());
                fOut.close();

and

FileInputStream fin = openFileInput(file);

My question is where is the file created store ? And is it sure that nobody can access it even if they find the file in their device ?

Upvotes: 0

Views: 47

Answers (1)

Antoine Laborderie
Antoine Laborderie

Reputation: 141

The file is created in the phone's internal memory and only your app can access it.

Pretty sure it's not 100% reliable as it's just a file, you'd better find something else. Rooted android can access to whatever file they want.

EDIT: Read the two first lines of https://developer.android.com/guide/topics/data/data-storage.html#filesInternal

Upvotes: 2

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