chris-belcher

Design for a CoinSwap Implementation for Massively Improving Bitcoin Privacy and Fungibility

25/5/2020

Abstract

Imagine a future where a user Alice has bitcoins and wants to send them with maximal privacy, so she creates a special kind of transaction. For anyone looking at the blockchain her transaction appears completely normal with her coins seemingly going from address A to address B. But in reality her coins end up in address Z which is entirely unconnected to either A or B.

Now imagine another user, Carol, who isn't too bothered by privacy and sends her bitcoin using a regular wallet which exists today. But because Carol's transaction looks exactly the same as Alice's, anybody analyzing the blockchain must now deal with the possibility that Carol's transaction actually sent her coins to a totally unconnected address. So Carol's privacy is improved even though she didn't change her behaviour, and perhaps had never even heard of this software.

apsun

100% free. Runs completely locally on your machine. Bypasses the 3200 tweet limit. May require some eye bleach for the script. Here's how to use it:

1. Go to settings -> account -> your Twitter data and request a download. This may take a few hours. You'll get an email with a link to download a zip file. Extract the zip file and navigate to the data directory.

2. Go to Twitter in a web browser and find any Tweet you want to delete. We're going to use it to extract your authentication credentials for the next step. Open developer tools, delete the tweet, and find the request

diamondo25

// IDC script for identifying functions and such
#include <idc.idc>

#define RenameFunction(a, b) Message("Found %s at %a\r\n", b, a); MakeName(a, b)
#define START_ADDR 0x00400000

static main() {
    auto addr = BADADDR;
    
    auto onMovePacket = FindAoBAndRename("25 0C FE FF  FF 05 E8 03", "?OnMovePacket@CMovePath@@QAEXAAVCInPacket@@H@Z");