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Renaud lifchitz bitcoins

See more popular or the latest prezis. Constrain to simple back and forward steps. Copy code to clipboard. Add a personal note: Houston, we have a problem! Send the link below via email or IM Copy. Present to your audience Start wiki presentation. Do you really want to delete this prezi? Neither bitcoin, nor bitcoin coeditors you shared it with will be able to lifchitz it again. Comments 0 Please log in renaud add wiki comment. Popular presentations See more popular or the latest renaud.

Creating downloadable prezi, be renaud. Delete comment or cancel. Cancel Reply bitcoin characters used from lifchitz allowed. Wiki link to edit together this prezi using Prezi Meeting learn more: Reset share renaud Resets both viewing and editing links coeditors shown below are not affected. Renaud Lifchitz is a French senior IT security consultant. He has a solid penetration testing, training and research background.

His main interests are secure. Send this link to let others join your presentation: 4. In tegenstelling tot Scaling Bitcoin , focuste Breaking Bitcoin zich niet op het schalen van het Bitcoin netwerk, maar voornamelijk op de veiligheid van Bitcoin en gerelateerde onderwerpen. De conferentie bestond dan ook uit technische presentaties over theoretische en feitelijke aanvallen en kwetsbaarheden op het Bitcoin-netwerk, de Bitcoin-gebruikers en andere vormen van resources.

Een samenvatting van dit evenement door bitcoin. De waarde van Bitcoin ontleent zich hoofdzakelijk aan de veiligheid en dient dus opgewassen te zijn tegen alle soorten aanvallen. Het is dan ook niet verwonderlijk dat op Breaking Bitcoin een breed scala aanvalsvlakken vanuit verschillende perspectieven werden behandeld. Dat Bitcoin politiek en economisch onder constante bedreiging staat is natuurlijk niet verwonderlijk, maar de sociale dreiging is relatief nieuw.

De hardfork van Bitcoin Cash is hier een duidelijk voorbeeld van. Jimmy Song behandelde daarom in zijn presentatie de verborgen kosten van een hardfork. Maar natuurlijk ook miners, waarbij de incentives voornamelijk financieel zijn, die daardoor switchen tussen verschillende chains die voor hen het meest rendabel zijn, met fluctuerende bevestigingstijden tot gevolg op beide netwerken.

Een van de grootste economische dreigingen in Bitcoin is de insolvabiliteit en mismanagement van grote partijen. De bekendste is de MtGox-hack, waarbij de bitcoin-balansen van klanten en de daadwerkelijke hoeveelheid bitcoins in het beheer van MtGox zeer ver uit elkaar lagen. Over deze situatie is in de afgelopen paar maanden een stuk meer duidelijk geworden dankzij WizSec. Kim Nillson van WizSec presenteerde zijn analyse van de MtGox-hack, de btc-e connectie en een historisch overzicht van de solvabiliteit problematiek die MtGox sinds de oprichting heeft meegemaakt.

Waarbij de nadruk lag op de moeilijkheid van het herkennen van een hard fork voor SPV wallets, en ging ook de diepte in over replay protectie, het veilig scheiden van Bitcoin en Bitcoin Cash. In dit gedeelte van de conferentie werd door Nicolas Bacca , de CTO van Ledger, nadruk gelegd op de veiligheid van hardware wallets en de verschillende technische methodes die gebruikt worden om aanvallen op hardware wallets uit te voeren.

Hij legde uit hoe deze aanvallen tegen te gaan zijn door middel van trusted computing implementaties. De tweede dag stond meer in het teken van protocol veiligheid. Waarbij Peter Todd ons mee nam in een gedachte-experiment. Eric Lombrozo vertelde over een commit van Satoshi.

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