c - I need some weak entropy. I know I can use an unitialized buffer, but if I just need an integer's worth, would its address suffice instead? -

-

I am on Linux, where address space layout is randommaking. Is it necessary to declare a buffer on this stack, it can not be canceled, and use it for entropy, or I can already find something on the stack, put it in the whole and (knowing that This is somewhat random reason, instead of addressing space layout randomization, use an integer for entropy?

Pointer approach is an advantage that there is no compiler warnings Does not arise because initial buffers when you try to manipulate it, but only in my trial can be the address of the lower order (probably the last byte or two), the greeting will turn into a voice. The entropy buffer also It seemed to perform poorly, often it did not do anything.

If you need weak entropy Linux, why not read it? There is a non blocking type of / dev / random that is less ... random (but again, non-blocking).


Comments

Post a Comment

Popular posts from this blog

MVP, design question -

-
I am working on an MVP designated application and there are some design questions: I presenter how to communicate while writing code in the layer Should go between different presenters / ideas? Let's say I have a window window with a window viewer and I want to set the window title on the window from the second window. I have a title-setter on the window view, which wraps the actual Gui title. Should I call the title-setter directly on the scene (window viewer.tit = "title") or should I wrap the view title as the presentation title setter (window-creator.tit = "title")? Ask yourself how you will test it? If you do a window presentation. View. Tight = "Title", how can you test that the presenter is setting the title?
Read more

excel - Populate list via a bi-Condition -

-
I'm interested in implementing something but I'm not sure it would be possible and would like to take it on. This is my scenario: I will have two verification cells, which will be shown as a list, from which I will select. This is my condition that I want to remember and remember my list from a database. I have a list of agents, which has been thrown at B13: B23 and the next two, I have columns of data that assume that my data base looks like this bcdx | Y Z Agent 1 1 | 1 | 0 Agent 2 0 | 1 | 0 Agent 3 0 | 1 | 1 agent 4 1 | 0 | 0 ... I want to populate a list named agent from column B, when I verify cell 1: x and verification cell 2: 1 I choose from. It should only show an agent in column X with column: agent1 agent4 or 0 ... I read somewhere Array formula but I do not know if this is convenient and I have unfortunately not any background in the macro :( But I know C ++ is quite easy with some conditional statement like this. Advance Thanks, This
Read more

iphone - How do I make a UIPickerView in a UIActionSheet -

-
Just want to know how I will create UIPickerView in a UIActionSheet with a simple array. Well, I really know how to put it in an action sheet but I like my way because it is more for my app, thanks, but I I also want to know how to put options in UIPKviewView, I just have an array with colors already on top of that part: red, green, blue, yellow, black, etc. in this, but I want to know how it In the preview d L'be if I am using the already Instifrem:? Please help anyone. I know that this is a stupid question, but I'm cheating my head on my $$$$$$ MacBook. Instead you want to do this, create your UIPickerView interface builder and have it in your view controller Connect to the outlet. Add it as a subview of your main view and set its frame coordinates so that it is offset right below the edge, x = 0, y = 480 Then, when you want to display a picker, animate it like something with the screen: [UIView startup permissions: zero reference: zero]; [Color picture setfr
Read more