Can anybody explain me what i have to do here in this task?Or send me a tutorial in youtube link that would help me?!

Question

Syntax:ds create-user<name>
Creates a public/private RSA pair with the names<name>.xml and <name>.pub.xml within the keys key directory.
The keys directory is a folder that holds public and private keys.This directory is stored somewhere as desired.It can be relative to the executable file or it can be at home or anywhere so it will suit you.So the created files will be keys /<name>.xml and keys/<name>.pub.xml.You are not obliged to save the keys in xml format.Keys can also be saved as a file tree.
The size of the key is optional.Names should contain only the symbols A-Z,a-z,0-9 and_.Names must not contain spaces.

Answer 1

with java
https://www.tutorialspoint.com/java_cryptography/java_cryptography_keypairgenerator.htm
https://docs.oracle.com/en/java/javase/14/security/java-cryptography-architecture-jca-reference-guide.html#GUID-ED6EDA78-8D20-4059-92E1-FBDDE4D3DFE6
https://stackoverflow.com/questions/5178700/exporting-rsa-key-object-to-xml-in-java

Answer 2

You can solve Youtube link finder code in c++.
#include<iostream>
using namespace std;
int main()
{
char a[42]={0};
int c=32,b=17;
for(int I=0;I<=42;I++)
{
cin>>a[I];
}
if(a[31]!=0){
for(int i=0;i<=10;i++){
cout<<char(a[c]);
c++;
}
}if(a[31]==0){
for(int j=0;j<=10;j++){
cout<<char(a[b]);
b++;
}
}
return 0;
}

Answer 3

zemiak thanks sooo muchh