TECHNICAL UNIVERSITY OF MUNICH
ABOUT
Starting 1st of August, I am
a
Rudolf Mößbauer Tenure Track Assistant Professor for Applied Algebra in the Mathematics Department at the Technical University of Munich.
Previously, I was a Marie SkłodowskaCurie Fellow
at the Technical University of Munich in the
group of Professor
Antonia WachterZeh
and at Eindhoven University of Technology in the Mathematical Communication Theory group of Professor Alberto Ravagnani.
I obtained my Ph.D. in Mathematics at the University of Zurich under the supervision of Professor Joachim Rosenthal.
My research interests include cryptography, algebraic coding theory and number theory.
NEWS
 Glad to be group leader at the Virginia Tech  Swiss Summer School where I will talk about Code Equivalence!
 Excited to be a friend of finite geometry! Come to the Finite geometry and Friends Summer School!
 Thrilled to announce the special issue on codebased cryptography in Designs, Codes and Cryptography!
 Check out our new signature scheme CROSS using restricted errors. This is a round 1 candidate for the additional standardization call by NIST.
 Happy to be the main chair of CBCrypto 2024, an affiliated event with Eurocrypt 2024. See you in May in Zurich!
 If you are interested in learning about codebased cryptography, check out our survey! If you have any comments or additions to the survey, write me an email, as we plan to update it regularly.
COAUTHORS

Gianira Alfarano, Marco Baldi,
Jessica Bariffi,
Massimo Battaglioni, Sebastian Bitzer,
Eimear Byrne,
Franco Chiaraluce, Niklas Gassner,
Markus Grassl, Marcus Greferath, Lukas Holzbaur,
AnnaLena Horlemann, Carmelo Interlando,
Patrick Karl,
Karan Khathuria,
Hedonliang Liu,
Georg Maringer,
Giacomo Micheli,
Alessio Pavoni, Edoardo Persichetti, Anmoal Porwal,
Alberto Ravagnani,
Julian Renner, Stefan Ritterhoff, Nicole Rohrer, Joachim Rosenthal,
Paolo Santini,
Thomas Schamberger,
Severin Schraven,
Jonas Schupp,
Simran Tinani, Antonia WachterZeh, Nadja Willenborg
SELECTED PUBLICATIONS
 Marco Baldi, Sebastian Bitzer, Alessio Pavoni, Paolo Santini, Antonia WachterZeh, Violetta Weger. Zero Knowledge Protocols and Signatures from the Restricted Syndrome Decoding Problem. PKC 2024. Eprint
 Markus Grassl, AnnaLena Horlemann, Violetta Weger. The Subfield Metric and its Application to Quantum Error Correction. Journal of Algebra and its Applications, 2023.
 Marco Baldi, Sebastian Bitzer, Alessio Pavoni, Paolo Santini, Antonia WachterZeh, Violetta Weger. Generic Decoding of Restricted Errors. ISIT 2023.
 Giacomo Micheli, Severin Schraven, Simran Tinani, Violetta Weger. Geometric sieve over number fields for higher moments. Research in Number Theory, 2023.
 Stefan Ritterhoff, Georg Maringer, Sebastian Bitzer, Violetta Weger, Patrick Karl, Thomas Schamberger, Jonas Schupp, Antonia WachterZeh. FuLeeca: Leemetric signature scheme. CBCrypto 2023. Lecture Notes in Computer Science, Springer.
 Eimear Byrne, Violetta Weger. Bounds in the Lee Metric and Optimal Codes. Finite Fields and Their Applications, Volume 87, 102151, 2023.
 Violetta Weger, Karan Khathuria, AnnaLena Horlemann, Massimo Battaglioni, Paolo Santini, Edoardo Persichetti. On the Hardness of the Lee Syndrome Decoding Problem. Advances in Mathematics of Communications, 2022.
 Anmoal Porwal, Lukas Holzbaur, Hedongliang Liu, Julian Renner, Antonia WachterZeh, Violetta Weger. Interleaved Prange: A New Generic Decoder for Interleaved Codes. PQCrypto 2022. Lecture Notes in Computer Science, vol 13512. Springer, Cham.
 Eimear Byrne, AnnaLena Horlemann, Karan Khathuria, Violetta Weger. Density of Free Modules over Finite Chain Rings. Linear Algebra and its Applications, Volume 651, 2022
 Giacomo Micheli, Severin Schraven, Violetta Weger. Local to global principle for expected values. Journal of Number Theory, Volume 238, 2022. Video Abstract (and the Bloopers)
 Karan Khathuria, Joachim Rosenthal, Violetta Weger. Encryption scheme based on expanded ReedSolomon codes. Advances in Mathematics of Communications, Volume 15, Issue 2, pp 207218, 2021.
 AnnaLena HorlemannTrautmann, Violetta Weger. Information set decoding in the Lee metric with applications to cryptography. Advances in Mathematics of Communications, Volume 15, Nr 4, pp 677699, 2021.
 Giacomo Micheli, Violetta Weger. On rectangular unimodular matrices over the algebraic integers. SIAM Journal on Discrete Mathematics, Volume 33, Issue 1, pp 425437, 2019.
 Giacomo Micheli, Violetta Weger. Cryptanalysis of the CLR Cryptosystem. Designs, Codes and Cryptography, Volume 87, Issue 5, pp 1069–1086, 2019.
NIST SUBMISSIONS
 CROSS: Codes and Restricted Objects Signature Scheme. Submitters: Marco Baldi, Alessandro Barenghi, Sebastian Bitzer, Patrick Karl, Felice Manganiello, Alessio Pavoni, Gerardo Pelosi, Paolo Santini, Jonas Schupp, Freeman Slaughter, Antonia WachterZeh, Violetta Weger. NIST PQC Call for Additional Digital Signature Schemes, 2023. Round 1 Submission.
 FuLeeca: A Leebased signature scheme. Stefan Ritterhoff, Sebastian Bitzer, Patrick Karl, Georg Maringer, Thomas Schamberger, Jonas Schupp, Georg Sigl, Antonia WachterZeh, Violetta Weger. NIST PQC Call for Additional Digital Signature Schemes, 2023. Round 1 Submission.
THESIS
 Ph.D. Thesis. Information Set Decoding in the Lee Metric and the Local to Global Principle for Densities. 2020.
 Master Thesis. A CodeBased Cryptosystem using GRS codes. 2017.
SELECTED TALKS
 The Mysterious Case of Code Equivalence. VTSwiss Summer School, July 1, 2024, Riva San Vitale, CH. Slides
 CROSS: signature scheme using restricted errors. AISEC: 3rd PQC Update, May 13, 2024, Munich, DE. Slides
 Open Problems in the Lee Metric. Effective Geometry and Algebra Seminar, March 29, 2024, Rennes, FR. Slides
 Open Problems in CodeBased Cryptography. Colloquium on Coding Theory and Cryptography, November 8, 2023. Ghent, BE. Slides
 CROSS: Signature scheme with restricted errors. Deutsche Mathematiker Vereinigung, September 25, 2023. Ilmenau, DE. Slides
 Introduction to codebased signatures. Finite Geometry and Friends, September 20, 2023. Brussels, BE. Slides
 Recent Advances in Codebased Signatures. CAST: Quantentechnologie und Quantencomputerresistente Sicherheit, September 7, 2023. Darmstadt, DE. Slides
 The rise and fall of FuLeeca. 2nd Oxford Postquantum Cryptography Workshop, September 5, 2023. Oxford, GBR. Slides Video
 The search for the right support: better bounds for the Lee metric. SIAM AG23, July 13, 2023. Eindhoven, NL. Slides (Fighting the Mic) Video
 How to sign using restricted errors. 29th Nordic Congress of Mathematicians with EMS, July 3, 2023. Aalborg, DK. Slides
 The search for the right support: better bounds for the Lee metric. Fq15, June, 23, 2023. Paris, Fr. Slides
 Signature Scheme from Restricted Errors. CBCrypto 2023, April 22, 2023. Lyon, FR. Slides
 Recent Advances and Challenges in Codebased Signatures. CrossFyre 2022, October 7, 2022, Passau, DE. Slides
 On the Density of Free Codes over Finite Chain Rings. Combinatorics 22, June 3, 2022, Mantova, IT. Slides
 Behaviour of random ringlinear codes. ACCESS, October 5, 2021, virtual. Slides
 On the density of free codes over finite chain rings. SIAM AG21, August 17, 2021, virtual. Slides
CONTACT
Department of Mathematics
TUM School of Computation, Information and Technology
Technical University of Munich
Munich, Germany