Tech Securing the Web3 revolution 7 February 2022 Key Takeaways: The Web3 economy will change how we create and transfer digital value: it will alter the lives of citizens, creators, artists, entrepreneurs, businesses… changing our world for the better. We’re still
Tech Alpha-Rays, Key extraction attack on MPC 20 December 2021 Alpha-Rays: Key extraction attack on MPC D. Tymokhanov (Velas) and O. Shlomovits (Zengo) just published Alpha-Rays, an efficient key extraction attack on one of the most popular Threshold Signature Schemes. Some implementations are
Tech Why Taproot Matters for Bitcoin and Ledger's Future? 15 November 2021 Taproot Support in the Ledger Stack Bitcoin is evolving, and Ledger’s always supported that evolution since Day 1. The Bitcoin protocol is very stable and doesn’t evolve significantly over time, which is part
Donjon On the security model of software wallets 29 July 2021 A cryptocurrency wallet is a device or application able to manage cryptocurrencies and perform transactions for one or several cryptocurrencies. Its main security features are to store user’s private keys, and use them
Tech Raising the bar for security with Ledger Swap 13 October 2020 With Ledger Swap you can exchange coins in Ledger Live, easily and securely. Swapping coins is as easy as sending a transaction. It requires no address verification while enhancing the state of the
Donjon Unfixable Seed Extraction on Trezor - A practical and reliable attack 1 July 2019 An attacker with a stolen device can extract the seed from the device. It takes less than 5 minutes and the necessary materials cost around 100$. This vulnerability affects Trezor One, Trezor T,
Donjon Extracting seed from Ellipal wallet 25 June 2019 The Donjon, Ledger’s security research team, recently spent some time and resources to analyse the security of hardware wallets. Our goal is to raise the bar for security in the ecosystem.
Donjon Breaking Trezor One with Side Channel Attacks 17 June 2019 A Side Channel Attack on PIN verification allows an attacker with a stolen Trezor One to retrieve the correct value of the PIN within a few minutes.
Donjon Extracting seeds from Wallets 11 June 2019 During Breaking Bitcoin conference last weekend, I presented the research we conducted in the past months at the Donjon. We spent significant time and efforts in order to raise the bar of security
Donjon Introducing Ledger Donjon 11 December 2018 At Ledger, we believe in true security. Security is not a term that we take lightly. To build secure systems, it is necessary to use secure hardware bricks and implement a secure Operating
