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Ruben Niederhagen
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Ruben Niederhagen retweeted
IACR ePrint Updates 8 Dec 17
[New] Implementing Joux-Vitse's Crossbred Algorithm for Solving MQ Systems over GF(2) on GPUs (Ruben Niederhagen...
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Ruben Niederhagen retweeted
IACR ePrint Updates 8 Dec 17
[New] FPGA-based Niederreiter Cryptosystem using Binary Goppa Codes (Wen Wang and Jakub Szefer and Ruben Niederh...
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Ruben Niederhagen retweeted
Daniel J. Bernstein 4 Dec 17
Classic McEliece Code-based crypto, 40-year history. Big pk, small ct, surprisingly fast. submitters A-Z Sendrier
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Peter Schwabe 4 Dec 17
Very nice summary of our submission SPHINCS+ by Andreas Hülsing:
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Tanja Lange 10 Dec 17
Nice work! This is based on Kai-Chun's master thesis at which he did at with
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Ruben Niederhagen 1 Jun 17
Whitepaper "Practical Post-Quantum Cryptography" at
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Ruben Niederhagen retweeted
ECRYPT-EU 12 Jan 17
Executive school Jun 22-23 Two days to get working knowledge of post-quantum cryptography, just in time for PQCrypto
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Tanja Lange 12 Jan 17
PQCrypto 2017 Paper registration Feb 14, submission Feb 21, conf Jun 26-28. Week before 2 schools
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Ruben Niederhagen 29 Nov 16
New ECDLP record! We solved a 117.35-bit ECLDP on a binary curve! Update soon on
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Ruben Niederhagen 17 Apr 16
beating claiming to be "Harder, Better, Faster, Stronger"
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Ruben Niederhagen 17 Apr 16
Replying to @solardiz @jedisct1
For prime fields, the hw multipliers would help - but then GPUs most likely would be more efficient than FPGAs.
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Ruben Niederhagen 17 Apr 16
Replying to @solardiz @jedisct1
Yes, exactly: we compute in a binary field - so the integer multipliers do not help.
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Ruben Niederhagen 17 Apr 16
FPGA attack on binary curve: slightly beats prev. ECDLP record, bigger one coming soon
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Ruben Niederhagen retweeted
Tanja Lange 31 Jul 15
New evidence in Dual EC mystery: how easily Dual EC got into ISO & whom to ask @ NSA w &
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Frederic Jacobs 31 Jul 15
The history of DUAL_EC_DRBG, how it got standardized & how it works by , &
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Ruben Niederhagen 26 Oct 14
Replying to @jon_katz
Thanks! True; I am looking forward to an obfuscation challenge that is not just "secure" but secure... ;)
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Ruben Niederhagen 25 Oct 14
Worst-case runtime of our attack is 34min - took the machines longer to download the challenge from dropbox than to break it.
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Ruben Niederhagen 25 Oct 14
In 19min we broke a "point obfuscation" challenge announced at the Crypto rump session: 11000101100100
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Tanja Lange 22 Jul 14
"How to manipulate curve standards" w/ , Chou, Chuengsatiansup, Hülsing, , van Vredendaal
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Tanja Lange 12 Jun 14
Dual EC patent situation is even more evil: EU patent covers escrow; more patents filed & backdoor online since 2006
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