Description
Leader of the group Cryptology: Ronald Cramer.
Vacancies
No vacancies currently.
News
Gearing up for QCrypt 2020
The latest top results in quantum cryptography will be shared during the upcoming tenth anniversary edition of the QCrypt conference. Welcoming hundreds of visitors from science and industry, QCrypt 2020 will take place as an online event, jointly organized by CWI and the University of Amsterdam.
Leo Ducas (CWI Cryptology Group) involved in NIST Post-Quantum Cryptography Standardization Finalists
In its process to develop the first cryptographic standard to protect sensitive electronic data against the threat of quantum computers, the US National Institute of Standards and Technology (NIST) announced the finalists. Léo Ducas from CWI's Cryptology group is involved in several finalists of this standardization process.
Interview with Dijkstra Fellow David Chaum
David Chaum (1955) was awarded the Dijkstra Fellowship for his groundbreaking work in privacy and cryptology and the development of digital currency, which laid the technological basis for blockchain and bitcoin. This interview appeared in CWI’s staff magazine in April 2020.
Levchin prize for Marc Stevens’ groundbreaking work on hash functions
For their groundbreaking work on the security of collision resistant hash functions researchers Marc Stevens (CWI) and Xiaoyun Wang (Tsinghua University) were awarded one of the two 2020 Levchin Prizes for real-world cryptography.
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