Blockchain and security: bank and insurance applications ...

BlackAlps17: Security review of proximity technologies - Beacons and physical web by Renaud Lifchitz Renaud Lifchitz & Sarah-Diane Eck  Breaking Bitcoin 2017 CryptoMonday Paris (meetup du 19 mars) HackerZVoice - NDHXV - Keynote par FreeMan Jimmy Song & Sarah-Diane Eck  Breaking Bitcoin 2017 [EN]

Security of Bitcoin light wallets - September, 9th 2017 - Renaud Lifchitz 7 Peer discovery Needed to connect to full nodes to: – Download block headers – Submit Bloom filters – Download specific transactions Possibilities to bootstrap the discovery: – Hardcoded list of nodes – Use of DNS seeds Sensitive because an attacker can set up malicious nodes actualités sur Renaud Lifchitz 43 min Un Jour dans le monde Le bitcoin expliqué à ma mère 26 déc. 2017 Par Fabienne Sintes Renaud Lifchitz 13 Summary of possible impacts • An attacker can: – Known (nearly) all victim’s Bitcoin addresses (or a superset of them) – Associate user IP, addresses, and owner together – Prevent the user to use SPV by blocking the network (denial of service) – Prevent any outgoing transaction from being broadcasted → the victim cannot spend bitcoins – Prevent any ingoing ... Op 9 en 10 september vond de Breaking Bitcoin conferentie plaats in Parijs. 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. Le bitcoin: tout le monde en parle, mais à quoi ça sert? Comment ça marche? Renaud Lifchitz nous explique tout; Dans les cuisines du grand chef italien, Massimo Bottura; Et enfin une bonne ...

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BlackAlps17: Security review of proximity technologies - Beacons and physical web by Renaud Lifchitz

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