Discover DavidBuchanan314/scratch-cryptography-library Open Source

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Python
License
MIT License
Created over 2 years ago
Updated over 2 years ago

DavidBuchanan314

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Modern cryptography primitives implemented in Scratch, via Boiga

tweetable-polyglot-png

Pack up to 3MB of data into a tweetable PNG polyglot file.

Python

2,467

ambiguous-png-packer

Craft PNG files that appear completely different in Apple software [NOW PATCHED]

Python

1,055

monomorph

MD5-Monomorphic Shellcode Packer - all payloads have the same MD5 hash

763

dlinject

Inject a shared library (i.e. arbitrary code) into a live linux process, without ptrace

Python

707

NXLoader

My first Android app: Launch Fusée Gelée payloads from stock Android (CVE-2018-6242)

Java

491

pwn-mbr

A simple MBR hijack demonstration

172

libleakmydata

A simple LD_PRELOAD library to disable SSL certificate verification. Inspired by libeatmydata.

159

TARDIS

Trace And Rewrite Delays In Syscalls: Hooking time-related Linux syscalls to warp a process's perspective of time, using ptrace.

153

TwitterHD

A userscript that forces twitter to always load images and videos in full resolution

JavaScript

unsafe-python

A library to assist writing memory-unsafe code in "pure" python, without any imports (i.e. no ctypes etc.)

Python

Turbo-Recadmiumator

A remake of truedread/netflix-1080p which auto-patches cadmium-playercore at runtime to enable enhanced playback features. (NOTE: still working in 2023 despite no code updates for 2 years 😎)

JavaScript

parallel-png-proposal

Python

stelf-loader

A stealthy ELF loader - no files, no execve, no RWX

fusee-nano

A minimalist re-implementation of the Fusée Gelée exploit, designed to run on embedded Linux devices. (Zero dependencies)

fusee-lede

Instructions/files for building a custom LEDE image to turn cheap routers into a Nintendo Switch "modchip"/"dongle". Powered by https://github.com/DavidBuchanan314/fusee-nano

Makefile

RootMyTV

Placeholder repo 👀

WAMpage

WAMpage - A WebOS root LPE exploit chain (CVE-2022-23731)

JavaScript

6502-emu

A simple 6502 emulator, with I/O via a 6850 UART.

cowroot

Universal Android root tool based on CVE-2016-5195. Watch this space.

picopds

A minimum viable atproto PDS for protocol experimentation purposes

Python

boiga

A Python library enabling ergonomic Scratch 3.0 code generation.

Python

webos-vncserver

An extremely hacky VNC server for WebOS - Works by reading directly from the GPU's framebuffer.

wifi-sdcf

Reverse Engineering notes on the Dxingtek/Keytech(?) WiFi@SDCF card

Python

trumpogram

The World, according to Donald Trump

Python

aes-playground

My experiments in understanding AES, Whitebox AES, and related attacks

Python

p65a

Pythonic 6502 Assembler: An experimental alternative to traditional assemblers.

Python

rc4

A python3 RC4 implementation that doesn't suck. (i.e. it's actually binary-safe...)

Python

bitmap-font-css

Trying to make bitmap web fonts look better.

scratch-vscode

Preview Scratch projects inside vscode, with live reload.

TypeScript

ScapyGuard

An extremely bare-bones Python3 WireGuard client.

Python

rsyscall-lkm

rsyscall is a dirty hack that allows you to execute syscalls in the context of another Linux process. M̶a̶y̶ Will explode your kernel.

hello_png

Example code from my blog post of the same title

Python

beatstar-tools

Scripts for datamining the Beatstar mobile game

Python

shellinject

Spawn a reverse TCP shell in the context of another Linux process

Python

python-bitsliced-aes

An experimental implementation of bitsliced aes in pure python. Quite possibly the fastest pure-python AES implementation on the planet.

Python

classic-ipod-tools

Tools for manipulating classic ipod firmware images etc.

bagel

[WIP] bagel is a Binary age aLternative - mostly the same as age but with a binary header format.

Python

python-ssh-server

A very incomplete, incompatible, and insecure implementation of RFC4253

Python

cursed-code

A repo to keep track of all the useful/hacky/cursed scripts and one-liners I write

Assembly

dag-cbrrr

A reasonably fast DAG-CBOR parser for Python

chip8

A simple CHIP-8 Emulator with a GTK+ frontend

merkle-search-tree

An abstract implementation of a Merkle Search Tree, structurally compatible with ATProto's instantiation

Python

fakeIoT

Yet another telnet honeypot.

Ruby

dram_emfi

playing with DDR DRAM bus fault injection

Python

imgur-anti-anti-hotlink

A very simple WebExtension to prevent imgur from preventing you from viewing images directly.

JavaScript

reveilid

WIP

Python

gif-enc

A rather inefficient GIF encoder, in python.

Python

magic-helloworld

A program that prints "Hello World!" by magic, with a single memcpy.

ipod-toslink-mod

Adding optical digital audio output to classic iPods

shellcode

My personal shellcode collection.

Python

iPodWizard-mirror

A git mirror of iPodWizard: https://sourceforge.net/projects/ipodwizard/

C++

picofeedgen

A minimum-viable atproto feed genedator

Python

irradiate.py

a simple script to simulate random "cosmic ray" memory errors against a linux process

Python

falling-block-game

resemblance to any other game is purely coincidental

Python

AnonymOS

Yet another unnamed operating system project.

6502-sbc

Documentation and code for my 6502 SBC

Assembly

distrust

A very very WIP type-2 hypervisor in Rust, which uses the Linux KVM API.

Rust

ROLL13

an (unfinished) TLSv1.3 client in pure python, hand-rolled from first principles.

Python

CVE-2017-13672

POCs for CVE-2017-13672 (OOB read in VGA Cirrus QEMU driver, causing DoS)

branflakes

Yet another x86_64 optimising Brainf*ck JIT compiler.

Brainfuck

pda-hax

Objective-C

zoom-enhance

CSI style "Zoom and Enhance" with Google Maps

JavaScript

fizzbuzz-ng

The fastest fizzbuzz in the universe.

duino-coin-fork

Python

english-letter-freqs

Useful generation scripts and precomputed LUTs useful for performing frequency analysis on English text.

Python

CHIP8-ROP

A chip8 emulator that translates programs into a giant ROP payload. Not my best idea...

branflakes-ng

An improved version of my older project "branflakes", an optimising brainfuck compiler.

Brainfuck

css-gradient-fixer

CSS Gradient Fixer

HTML

coursework

Random Cardiff uni CompSci coursework solutions, of varying quality.

PHP

pcb-pattern

Renders a random PCB pattern using HTML5 canvas.

JavaScript

DavidBuchanan314/scratch-cryptography-library

DavidBuchanan314

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