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Jean-Philippe Aumasson

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titleconferencedate
Lessons From Two Years of Crypto AuditsBlack Hat USA 20192019-08-03
Findings include a hard-coded nonce that breaks ChaCha20-Poly1305 allowing ciphertext recovery, use of plain SHA-256 for password-derived keys instead of…
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Attacking and Defending Blockchains: From Horror Stories to Secure WalletsBlack Hat Europe 20182018-12-03
Survey of real failures: 2010 Bitcoin overflow fixed in five hours, DAO reentrancy steals tens of millions, Parity library init bug freezes wallets, plus a…
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Attacking and Defending Blockchains: From Horror Stories to Secure WalletsBlack Hat Europe 20182018-12-03
Survey of concrete failures and fixes: a 2010 Bitcoin integer overflow briefly creates billions and is patched in 25 hours; the DAO smart contract loses…
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SGX Secure Enclaves in Practice: Security and Crypto ReviewBlack Hat USA 20162016-08-03
Hands-on assessment uses real Skylake hardware and both Intel Windows SDK (requires Visual Studio Professional 2012) and the new Linux SDK from GitHub…
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