Cryptographic Vulnerabilities in Threshold Wallets. In the talk I will discuss threshold ecdsa signatures in the context of a wallet. In terms of cryptography this is a "wild wild west" and I will exemplify this using series of pitfalls and errors done by engineers and cryptographers, where eventually I show how a small misuse of cryptography broke an implementation of a threshold wallet completely. Finally I give some tools to implementers that wish to go down this path anyway. The talk is highly technical and low level but hopefully self contained. Breaking Bitcoin is an event for the technical community focusing on the security of Bitcoin and everything around it. Presentations aim to be technical, focusing on vulnerabilities, theorical or practical attacks targetting the users and the Bitcoin protocol. This event is geared toward people with knowledge of the technical aspects of Bitcoin or security in general. https://breaking-bitcoin.com/ If you have learned something valuable, donate a couple sats to Max as a thank you note: 3DqEnU6dW6bZesrVdThrrQjQKgN7dpY5vv https://tallyco.in/HillebrandMax Support the show by buying bitcoin on https://hodlhodl.com/join/ERCT Listen to WCN Audio Podcasts: https://itunes.apple.com/us/podcast/the-world-crypto-network-podcast/id825708806 Check out the brand new http://WorldCryptoNetwork.com/ Find out more about Max https://towardsliberty.com Follow WCN on Twitter: https://twitter.com/WorldCryptoNet Follow Max on Twitter: https://twitter.com/HillebrandMax Contribute to Max’s Bachelor Thesis on Multi Signature in the Lightning Network: https://towardsliberty.com/multisig https://www.youtube.com/playlist?list=PLPj3KCksGbSaBmpAmdp_icu2PkywjeUI6 Bitcoin to the Max: https://youtube.com/playlist?list=PLPj3KCksGbSZtGhC7nIr_Mf1oCeP8U1tV Bitcoin Only: https://www.youtube.com/playlist?list=PLPj3KCksGbSYX2cNoOaV-w-9QuZ62LDk_ Read Rothbard ~ Use Bitcoin: https://youtube.com/playlist?list=PLPj3KCksGbSafpOorg0NdeVXGIPNqV_8a Open Source Everything: https://youtube.com/playlist?list=PLPj3KCksGbSb1h33FZbsrtr1feIIwTBHt Hackers Congress Paralelni Polis 2018: https://youtube.com/playlist?list=PLPj3KCksGbSY8xt-x-KoDb6L380odP_qu Baltic Honeybadger 2018: https://youtube.com/playlist?list=PLPj3KCksGbSZsgH48ZDxNdzRXbg_pvMnz Bitcoin-Dev Mailing List: https://www.youtube.com/playlist?list=PLPj3KCksGbSZWpXUZAp2y0ftJsjXPWdtO Nodl Personal Bitcoin Assistant: https://www.youtube.com/playlist?list=PLPj3KCksGbSYvbhhUpIehNqnXFLkz1AD1 Bisq Decentralized Exchange: https://youtube.com/playlist?list=PLPj3KCksGbSZR33X7kJmDMwIEH-wrrpCJ ColdCard Wallet: https://youtube.com/playlist?list=PLPj3KCksGbSZJzC4besvtu8CSroBosrdt GPG + Yubikey: https://www.youtube.com/playlist?list=PLPj3KCksGbSZkVpgAZjAFfFp4D0SHLnFw Purism: https://youtube.com/playlist? ... https://www.youtube.com/watch?v=GlHgW75IN9I

Wasabi is an open-source, non-custodial, privacy focused Bitcoin wallet, that implements trustless coin shuffling with mathematically provable anonymity: Chaumian CoinJoin, it is the first of its kind. However, "anonymity loves company", the more users there are, the better your privacy, and the faster the CoinJoin rounds will be. Whether you are looking for state of the art operational security or you are philosophically aligned with the principles of freedom and privacy, now it is YOUR time to contribute. Fire up your Wasabi and start providing liquidity for CoinJoins to bootstrap the system! https://WasabiWallet.io Donate Bitcoin to Max: 3DqEnU6dW6bZesrVdThrrQjQKgN7dpY5vv https://tallyco.in/HillebrandMax Support the Show: https://www.patreon.com/wcn Read Rothbard, Use Bitcoin Show with Max Hillebrand: https://www.youtube.com/playlist?list... Open Source Everything, with Max Hillebrand: https://www.youtube.com/playlist?list... Listen to WCN Audio Podcasts: https://itunes.apple.com/us/podcast/w... Check out the brand new http://WorldCryptoNetwork.com/ Find out more about Max https://towardsliberty.com Support the Open Source Paper Anarchy in Money https://towardsliberty.com/anarchy Follow WCN on Twitter: https://twitter.com/WorldCryptoNet Follow Max on Twitter: https://twitter.com/HillebrandMax Follow Wasabi on Twitter: https://twitter.com/WasabiWallet ... https://www.youtube.com/watch?v=03Xy6UCdMyI

... https://www.youtube.com/watch?v=2CrgNLz0r1M

Donate Bitcoin: 3NqhJSAikoFiYmZm3ACGzdw9Lr86ZiLT7K Join our New Patreon: https://www.patreon.com/wcn Subscribe to the WCN Audio Podcast on Itunes: https://itunes.apple.com/us/podcast/world-crypto-network/id825708806?mt=2 Featuring… Max Hillebrand (https://twitter.com/HillebrandMax) Shem Booth-Spain (https://twitter.com/ShemBooth1) and Thomas Hunt (https://twitter.com/MadBitcoins) THIS WEEK: ---------------------------- Bitcoin Price Sees Second Dip Below $6K This Year as CME Futures Expire https://cointelegraph.com/news/bitcoin-price-sees-second-dip-below-6k-this-year-as-cme-futures-expire Facebook Reverses Cryptocurrency Ad Ban Amidst Rumors of a Coinbase ... https://bitcoinmagazine.com/articles/facebook-reverses-cryptocurrency-ad-ban-amidst-rumors-coinbase-acquisition/ Bitcoin HashRate At All-Time High With 'Price to Follow,' Says Max Keiser - Bitcoinist.com http://bitcoinist.com/bitcoin-hashrate-hits-time-high-price-follow/ Bitmain Nears 51% of Network Hash Rate: Why This Matters and Why It ... https://bitcoinmagazine.com/articles/bitmain-nears-51-network-hash-rate-why-matters-and-why-it-doesnt/ Bitcoin sting: How federal agents arrested 35 in money laundering sting https://slate.com/technology/2018/06/bitcoin-sting-how-35-arrested-federal-money-laundering-operation.html A Plan to Send Millions in Bitcoin to Venezuela Is Moving Ahead - CoinDesk https://www.coindesk.com/plan-send-millions-bitcoin-venezuela-taking-shape/ Check out our new website: https://www.worldcryptonetwork.com/ Please Subscribe to our Youtube Channel https://www.youtube.com/user/WorldCryptoNetwork/videos ... https://www.youtube.com/watch?v=5UaTiqRl-xU