Trust-by-Design – Strong Security Arguments for Symmetric Key Cryptography

Project Information

SymTrust

Grant agreement ID: 101097056

DOI

10.3030/101097056

EC signature date 23 May 2023

Start date 1 September 2023

End date 31 August 2028

Funded under

• European Research Council (ERC)

Total cost

€ 2 485 000,00

EU contribution

€ 2 485 000,00

Coordinated by

RUHR-UNIVERSITAET BOCHUM
Germany

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Links to deliverables and publications from FP7 projects, as well as links to some specific result types such as dataset and software, are dynamically retrieved from OpenAIRE .

Publications

Conference proceedings (5)

Pitfalls and Shortcomings for Decompositions and Alignment

Author(s): Baptiste Lambin, Gregor Leander, Patrick Neumann
Published in: Lecture Notes in Computer Science, Advances in Cryptology – EUROCRYPT 2023, 2025
Publisher: Springer Nature Switzerland
DOI: 10.1007/978-3-031-30634-1_11

Integral Resistance of Block Ciphers with Key Whitening by Modular Addition

Author(s): Christof Beierle, Phil Hebborn, Gregor Leander, Yevhen Perehuda
Published in: Lecture Notes in Computer Science, Advances in Cryptology – CRYPTO 2025, 2025
Publisher: Springer Nature Switzerland
DOI: 10.1007/978-3-032-01901-1_16

ChiLow and ChiChi: New Constructions for Code Encryption

Author(s): Yanis Belkheyar, Patrick Derbez, Shibam Ghosh, Gregor Leander, Silvia Mella, Léo Perrin, Shahram Rasoolzadeh, Lukas Stennes, Siwei Sun, Gilles Van Assche, Damian Vizár
Published in: Lecture Notes in Computer Science, Advances in Cryptology – EUROCRYPT 2025, 2025
Publisher: Springer Nature Switzerland
DOI: 10.1007/978-3-031-91107-1_8

General Practical Cryptanalysis of the Sum of Round-Reduced Block Ciphers and ZIP-AES

Author(s): Antonio Flórez-Gutiérrez, Lorenzo Grassi, Gregor Leander, Ferdinand Sibleyras, Yosuke Todo
Published in: Lecture Notes in Computer Science, Advances in Cryptology – ASIACRYPT 2024, 2024
Publisher: Springer Nature Singapore
DOI: 10.1007/978-981-96-0947-5_10

On Perfect Linear Approximations and Differentials over Two-Round SPNs

Author(s): Christof Beierle, Patrick Felke, Gregor Leander, Patrick Neumann, Lukas Stennes
Published in: Lecture Notes in Computer Science, Advances in Cryptology – CRYPTO 2023, 2025
Publisher: Springer Nature Switzerland
DOI: 10.1007/978-3-031-38548-3_8

Peer reviewed articles (6)

Cryptanalysis of HALFLOOP Block Ciphers

Author(s): Leander, Gregor; Rasoolzadeh, Shahram; Stennes, Lukas
Published in: IACR Transactions on Symmetric Cryptology, 2023, ISSN 2519-173X
Publisher: Ruhr University Bochum
DOI: 10.46586/TOSC.V2023.I4.58-82

GPU Assisted Brute Force Cryptanalysis of GPRS, GSM, RFID, and TETRA

Author(s): Cihangir Tezcan, Gregor Leander
Published in: IACR Transactions on Symmetric Cryptology, Issue 2025, 2025, ISSN 2519-173X
Publisher: Universitatsbibliothek der Ruhr-Universitat Bochum
DOI: 10.46586/TOSC.V2025.I1.309-327

Commutative cryptanalysis as a generalization of differential cryptanalysis

Author(s): Jules Baudrin; Christof Beierle; Patrick Felke; Gregor Leander; Patrick Neumann; Léo Perrin; Lukas Stennes
Published in: Designs, Codes and Cryptography, 2025, ISSN 1573-7586
Publisher: Springer
DOI: 10.1007/S10623-025-01625-9

Observations on TETRA Encryption Algorithm TEA-3

Author(s): Jens Alich, Amund Askeland, Subhadeep Banik, Tim Beyne, Anne Canteaut, Patrick Felke, Gregor Leander, Willi Meier, Lukas Stennes
Published in: IACR Transactions on Symmetric Cryptology, Issue 2025, 2025, ISSN 2519-173X
Publisher: Universitatsbibliothek der Ruhr-Universitat Bochum
DOI: 10.46586/TOSC.V2025.I1.276-308

Cryptanalysis of HALFLOOP Block Ciphers

Author(s): Gregor Leander, Shahram Rasoolzadeh, Lukas Stennes
Published in: IACR Transactions on Symmetric Cryptology, Issue 2023, 2024, ISSN 2519-173X
Publisher: Universitatsbibliothek der Ruhr-Universitat Bochum
DOI: 10.46586/TOSC.V2023.I4.58-82

Commutative Cryptanalysis Made Practical

Author(s): Baudrin, Jules; Felke, Patrick; Leander, Gregor; Neumann, Patrick; Perrin, Léo; Stennes, Lukas
Published in: IACR Transactions on Symmetric Cryptology, 2023, ISSN 2519-173X
Publisher: Ruhr University Bochum
DOI: 10.46586/TOSC.V2023.I4.299-329