---
id: 2351
title: "Bugcrowd Badge Challenge Writeup"
source_domain: bugcrowd.com
source_url: "https://www.bugcrowd.com/blog/bugcrowd-badge-challenge-writeup/"
published_at: "2018-09-17T00:00:00Z"
tags: ["ctf", "bugcrowd", "def-con-26", "badge-challenge", "shamir-secret-sharing", "one-time-pad"]
phying_url: "https://phying.com/item/2351"
lang: en
---

# Bugcrowd Badge Challenge Writeup

## Summary

Bugcrowd details its unsolved DEF CON 26 badge challenge: 'outhack.them.all' anagrammed to lethalmath.co.uk, where Shamir secret-sharing shards from three badges formed a one-time pad key.

## Intelligence Metadata

- **Sources:** bugcrowd.com
- **Published:** 2018-09-17T00:00:00Z
- **Original:** https://www.bugcrowd.com/blog/bugcrowd-badge-challenge-writeup/
- **Phying News:** https://phying.com/item/2351