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@selfsigned
selfsigned
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👺
Codin'

Xavier Perrin selfsigned

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Codin'
Wannabe Code Artisan, also probably a DevOps

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selfsigned/README.md

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  1. kfskfsPublic

    x86 bare metal programming for 42's Kernel programming track

    C 1

  2. Advent-of-Svelte-2023Advent-of-Svelte-2023Public

    Advent of Svelte 2023

    Svelte 1

  3. portfolioportfolioPublic

    My web resume

    Svelte 1

  4. description of a ret2libc exploit in...description of a ret2libc exploit in the 42 rainfall project
    1
    ##Ret2libc
    2
    An alternative to using a shellcode is to find the adress of the`system()` function in memory and to complement it with a memory location that contains a shell path string.
    3
    This method has the advantage of also working when the NX bit is set (not the case here), NX being a technology that marks certain areas of memory as non-executable, supposedly foiling buffer overflow attacks.
    4
    5
    ####The exploit
  5. Functional FizzBuzzFunctional FizzBuzz
    1
    // Logic
    2
    typeFizzBuzzOutput=(x:number)=>string
    3
    constFizz :FizzBuzzOutput=x=>(x%3===0) ?"Fizz" :""
    4
    constBuzz :FizzBuzzOutput=x=>(x%5===0) ?"Buzz" :""
    5
    constFizzBuzzPrint :FizzBuzzOutput=x=>Fizz(x)+Buzz(x)
  6. HackThePlanetHackThePlanetPublic

    42 Cybersec projects

    C 3


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