---
id: 10062
title: "Ledger Donjon CTF Fine Fine write-up"
source_domain: eshard.com
source_url: "https://www.eshard.com/blog/ledger-fine-fine"
published_at: "2021-12-24T00:00:00Z"
tags: ["vulnerability-research", "ctf", "hardware-security", "side-channel", "writeup", "eshard", "ledger-ctf"]
phying_url: "https://phying.com/item/10062"
lang: en
---

# Ledger Donjon CTF Fine Fine write-up

## Summary

This article presents the solution of the *Fine Fine* side-channel challenge of the 2021 Ledger Donjon CTF.

## Intelligence Metadata

- **Sources:** eshard.com
- **Published:** 2021-12-24T00:00:00Z
- **Original:** https://www.eshard.com/blog/ledger-fine-fine
- **Phying News:** https://phying.com/item/10062