xor | Move to : https : //github.com/templexxx/xorsimd

I am new to SwiftUI (iOS App Ver 14.x) as I normally use Xamarin.

In this case I need to have the application specifically written in SwiftUI. (I am aware that some stuff still needs UIKit).

I have got my head around it though I am generally speaking struggling to get to grips with where and how to store stuff.

For example (greatly simplified) let us say I want the following:

All in the same view.

Two form fields:

First Name: … Last Name: …

A Button that says, “Add Photo”.

A Button that says, “Save Locally” (N/a but just for info, to be later uploaded to a web service that isn't always available at some point).

Now doing all the standard stuff this is pretty straight forward.

BUT.

I want to encrypt the form input (once converted to JSON, note I can convert to JSON easy enough).

I also want to encrypt the image before it is stored. (the real app has more than one image).

The stuff will be encrypted in the real app using asymmetric encryption (which I understand well, again this is not so relevant here).

But for the sake of example, I am happy to just ‘encrypt’ the JSON and picture as two separate files using something simple just to show the idea. XOR it or something simple to show.

My question is where is the best places code wise to do this with some basic examples if possible. I know this is a little subjective but just something simple and obvious. Click button, run this func, do this type of thing etc.

Where do I store stuff (which I am finding a bit all over the place)? This is my main source of confusion being honest.

My understanding is that you would use a FileManager object and the documents directory (though I am not sure if this is best practice, or even the right place.

The requirement from a client is that nothing is stored unencrypted for compliance reasons (completely ignoring anything Apple have in place good or bad).

I am creating my first x86 assembly program. I am using VS Code as my editor and using Insight as my debugger coupled with DOSBox as my emulator.

As a start I have created a .asm program to change to colour of the screen:

I have written the following assembly code.
It's displaying the output of writeint as +0
But When I put the debug point on the line before writeint and look at the registers
I see EAX=0000BFBE. As per my understanding writeint should print the value of EAX
register. What could be the reason that it's showing +0?

I have to prints random values in graphic mode in assembly language 8086. My random procedure works fine in simple mode but in graphic mode it prints garbage values? draw1 macro is used to prints digits or any character on screen in Graphic mode it also works fine. The only issue is in random procedure. It print correct values in simple mode but prints garbage values in Graphic mode.

I have to develop class StackMachine[T]. If T = Boolean, then there should be logical operations. If T = Int,Double,Long and etc. there should be ariphmetic operations. Firstly i developed class Stack[T].

suppose i have a list of lists [[1,2,3],[1,2,3,4]]

how can I find the xor of all the list of list elements,

since the xor of [1^2^3] is 0, xor of [1^2^3^4] is 4 so the resultant list will be

This seems like it should be the simplest thing in the world, and there is also some questions regarding it on here, but none of them seem to work. In a lot of cases/answers, arguments aren't properly filled in, or answers just straight up don't work.

I have this super simple code, Where I take two chars, get their hex-values, and convert them to ints. I then xor them, and convert the result to a hex. Now I just want to convert this output to a char again. This for some reason, is not a simple task:

I have written a code that is supposed to make some sort of a list of numbers, but my data segment variables are not being initialized even though I did assign them an initial value?

This is how DS:0000 looks when I run it:

This is my code, but the data segment just keeps the trash values:

Hash Functions are incredibly useful and versatile. In general, they are used to map a space to one much smaller space. Of course that means that two objects may hash to the same value (collision), but this is because you are reducing the space (pigeonhole principle). The efficiency of the function largely depends on the size of the hash space.

It comes as a surprise then that a lot of Java hashCode functions are using multiplication to produce the hash code of a new object as e.g. follows (creating-a-hashcode-method-java)