storage

I need to programmatically store data on the client side without having to transfer the data from the server on every page load. I considered generating a dynamic JavaScript file with the needed data for the current session of the user and make sure it is cached, but that seems really messy and there are a few drawbacks I can think of to such an approach. How can I go about storing persistent data on the client side? You may store data in window.name , which can hold up to 2MB of data (!). /* on page 1 */ window.name = "Bla bla bla"; /* on page 2 */ alert(window.name); // alerts "Bla bla bla"

Alright, I've searched and searched and no one has my exact answer, or I missed it. I'm having my users select a directory by: Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT_TREE); startActivityForResult(intent, READ_REQUEST_CODE); In my activity I want to capture the actual path, which seems to be impossible. protected void onActivityResult(int requestCode, int resultCode, Intent intent){ super.onActivityResult(requestCode, resultCode, intent); if (resultCode == RESULT_OK) { if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M){ //Marshmallow } else if (android.os

What is default storage class of a global variable? While searching on web I found, some sites say it is static . But, static means internal linkage and the variable can not be available outside the file scope i.e it should not be available to other object files. But, they still can be accessed to other files using declarations like extern int i . And, if I explicitly mention static to global variable then it is not available outside the file scope. Then, what is correct default storage class for the global variables? The default storage duration is static, but default linkage is external. You

The attack One possible threat model, in the context of credential storage, is an attacker which has the ability to : inspect any (user) process memory read local (user) files AFAIK, the consensus on this type of attack is that it's impossible to prevent (since the credentials must be stored in memory for the program to actually use them), but there's a couple of techniques to mitigate it: minimize the amount of time the sensitive data is stored in memory overwrite the memory as soon as the data is not needed anymore mangle the data in memory, keep moving it, and other security through