Description
Leader of the group Cryptology: Ronald Cramer.
Vacancies
No vacancies currently.
News
Cryptographic security at the speed of light
When people who distrust each other want to securely cooperate, they can use cryptographic 'commitment schemes'. Max Fillinger (CWI) designed and analyzed relativistic commitment schemes. He defends his PhD thesis 'Bit-Commitments: Classical, Quantum and Non-Signaling' on 19 March.
Renowned scientists and policy advisors speak at CWI Lectures on Privacy and Security
Our privacy, a fundamental right, is threatened by surveillance and smart algorithms. Can our privacy be salvaged from 'intelligent' machines? During the CWI Lectures 2018 four renowned scientists and policy advisors discuss the state of the art in protecting privacy. Keynote speakers: Marc Rotenberg (USA), Jan Camenisch (Switzerland), Adam Smith (USA) and Ed Felten (USA), former advisor of Barack Obama.
Serge Fehr appointed as Professor Quantum Information Theory
Serge Fehr (CWI, UL) has been appointed as Professor Quantum Information Theory at the Leiden Mathematical Institute (MI) since 1 June 2018. His research is focused on quantum cryptology.
How to share sensitive information safely?
“Data protection is now in the news more often than ever before”, Thijs Veugen, a senior researcher at TNO and part-time seconded in CWI’s Cryptology group says in his recent TNO Time column. “What should a company do if it wants to share information?" "Organizations can use secure multi-party computation to securely link the most sensitive databases together.”
Members
Associated Members
Publications
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Spini, G, Mancini, E, Attema, T, Abspoel, M.A, de Gier, J, Fehr, S, … Sloot, P.M.A. (2022). New approach to privacy-preserving clinical decision support systems for HIV treatment. Journal of Medical Systems, 46(12), 84.1–84.11. doi:10.1007/s10916-022-01851-x
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Boyle, E, Couteau, G, Gilboa, N, Ishai, Y, Kohl, L.M, Resch, N.A, & Scholl, P. (2022). Correlated pseudorandomness from expand-accumulate codes. In Advances in Cryptology - CRYPTO 2022 (pp. 603–633). doi:10.1007/978-3-031-15979-4_21
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Don, J.W, Fehr, S, Majenz, C, & Schaffner, C. (2022). Efficient NIZKs and signatures from commit-and-open protocols in the QROM. In Advances in Cryptology - CRYPTO 2022 (pp. 729–757). doi:10.1007/978-3-031-15979-4_25
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Don, J.W, Fehr, S, Majenz, C, & Schaffner, C. (2022). Online-extractability in the quantum random-oracle model. In Advances in Cryptology - Eurocrypt 2022 (pp. 677–706). doi:10.1007/978-3-031-07082-2_24
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Ducas, L, & van Woerden, W.P.J. (2022). On the Lattice Isomorphism Problem, quadratic forms, remarkable lattices, and cryptography. In Advances in Cryptology - Eurocrypt 2022 (pp. 643–673). doi:10.1007/978-3-031-07082-2_23
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Frixons, P, Naya-Plasencia, M, & Schrottenloher, A.C. (2022). Quantum boomerang attacks and some applications. In Proceedings of the International Conference on Selected Areas in Cryptography (pp. 332–352). doi:10.1007/978-3-030-99277-4_16
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Debris-Alazard, T, Ducas, L, & van Woerden, W.P.J. (2022). An algorithmic reduction theory for binary codes: LLL and more. IEEE Transactions on Information Theory. doi:10.1109/TIT.2022.3143620
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Bhaumik, R, Bonnetain, X, Chailloux, A.G, Leurent, G, Naya-Plasencia, M, Schrottenloher, A.C, & Seurin, Y. (2021). QCB: Efficient quantum-secure authenticated encryption. In Advances in Cryptology - ASIACRYPT 2021 (pp. 668–698). doi:10.1007/978-3-030-92062-3_23
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Bonnetain, X, Leurent, G, Naya-Plasencia, M, & Schrottenloher, A.C. (2021). Quantum linearization attacks. In Advances in Cryptology - ASIACRYPT 2021 (pp. 422–452). doi:10.1007/978-3-030-92062-3_15
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Attema, T, Cramer, R.J.F, & Rambaud, M. (2021). Compressed Σ -Protocols for bilinear group arithmetic circuits and application to logarithmic transparent threshold signatures. In Advances in Cryptology - ASIACRYPT 2021 (pp. 526–556). doi:10.1007/978-3-030-92068-5_18
Software
NewHope: Fast implementation of a quantum-resistant key exchange
NewHope is the reference implementation of a quantum-resistant key exchange protocol.
Counter-Cryptanalysis: detecting forged digital MD5, SHA-1 signatures
The Counter-Cryptanalysis project provides a drop-in replacement for the existing cryptographic hash functions MD5 and SHA-1.
HashClash: A framework for studying the weaknesses of MD5 and SHA-1
HashClash is a software framework for cryptanalysis of the MD5 and SHA-1 cryptographic hash functions, and for Chosen-Prefix Collisions for MD5.
Current projects with external funding
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Samenwerkingsovereenkomst met TNO vwb promotieonderzoek Thomas Attema ()
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Secure scalable policy-enforced distributed data processing ()
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Alliance for Privacy Preserving Detection of Financial Crime (APP-DFC) - in kind bijdrage CWI (APP-DFC)
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A Reduction Theory for Codes and Lattices in Cryptography (ARTICULATE)
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Hybrid Approach for quantum-safe Public Key Infrastructure Development for Organisations (HAPKIDO)
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Ontwikkelen en uitwerken van een Manual en Dashboard naar Post Quantum Crypto (PQC) standaarden (None)
Related partners
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ABN AMRO Bank
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ING Bank
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KLM
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TNO
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TNO
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Universiteit van Amsterdam
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Vrije Universiteit Amsterdam