HanEmile

starsArray = []Stars
starsArray.ImportData("data.csv")
starsArray.CalcAllForces()
starsArray.Draw("out.png")

HanEmile

#!/usr/bin/env python3

import itertools
import math

goallist = [8, 31, 44, 55, 3, 47, 64]

combination = []

def quersumme(x):

HanEmile

Keybase proof

I hereby claim:

• I am hanemile on github.
• I am hanemile (https://keybase.io/hanemile) on keybase.
• I have a public key ASAm9UcS-pUA4F-o7P1T1NOdOYqyrFA8X3lAwd5Ra9kmNwo

To claim this, I am signing this object:

HanEmile

README

You should read this. Actually, you should read all READMEs.

HanEmile

Labortage CTF 2021 writeup pwn license-one (ghidra edition)

A slightly longer writeup to the license-one challenge containing a lot of basic ghidra foo:

• step 0: install ghidra
• step 1: create a project in ghidra
• step 2: add a binary to the project
• step 3: open the binary
• step 4: small tour of ghidras interface
• step 5: reversing the binary

HanEmile

{ config, pkgs, ... }:
let
  release = "nixos-21.11";
in {
  imports = [
    (builtins.fetchTarball {
      # Pick a commit from the branch you are interested in
      url = "https://gitlab.com/simple-nixos-mailserver/nixos-mailserver/-/archive/${release}/nixos-mailserver-${release}.tar.gz";
      # And set its hash
      sha256 = "1i56llz037x416bw698v8j6arvv622qc0vsycd20lx3yx8n77n44";

HanEmile

# Edit this configuration file to define what should be installed on
# your system.  Help is available in the configuration.nix(5) man page
# and in the NixOS manual (accessible by running ‘nixos-help’).

{ config, pkgs, ... }:

{
  imports =
    [ # Include the results of the hardware scan.
      ./hardware-configuration.nix

HanEmile

package main

import (
    "fmt"
    "io"
    "net/http"
    "os"
    "strings"
    "time"
)

HanEmile

CCCAC CTFriday

Access

• url http://ctf.bsidesindore.in (http://34.93.227.31)
• username cccac
• password: 4f1e4cc31ae3c008edcb7d759acafacb

Writeup format:

## $Challenge Name

HanEmile

#!/usr/bin/env python3
from pwn import *

context.binary = "./main_fixed"

# rops
rop_mov_r0_r6_t_adr = 0x00010d2c  # ; mov r0,r6 / pop {r4, r5, r6, pc}
rop_add_r0_r4_t_adr = 0x0001fd74  # ; add r0, r4 / pop {r4, pc}

rop_pop_lr_t_adr = 0x00045f5a  # ; pop.w {r4, lr} / nop.w / pop {r4, pc}