Publications

• Cool + Cruel = Dual, and New Benchmarks for Sparse LWE
  Alexandr Karenin, Elena Kirshanova, Julian Nowakowski, Eamonn W. Postlethwaite, Ludo N. Pulles, Fernando Virdia, Paul Vié
  Eurocrypt 2026
  Paper
• Super-Quadratic Quantum Speed-Ups and Guessing Many Likely Keys
  Kaveh Bashiri, Timo Glaser, Alexander May, Julian Nowakowski
  Eurocrypt 2026 + poster at QIP 2026
  Paper Slides Poster
• Fast Slicer for Batch-CVP: Making Lattice Hybrid Attacks Practical
  Alexandr Karenin, Elena Kirshanova, Alexander May, Julian Nowakowski
  Asiacrypt 2025
  Paper
• One Bit to Rule Them All – Imperfect Randomness Harms Lattice Signatures
  Simon Damm, Nicolai Kraus, Alexander May, Julian Nowakowski, Jonas Thietke
  PKC 2025 + invited to the Journal of Cryptology
  Paper
• An Improved Algorithm for Code Equivalence
  Julian Nowakowski
  PQCrypto 2025 + contributed talk at Arcticcrypt 2025
  Paper Code Slides
• Leaky McEliece: Secret Key Recovery From Highly Erroneous Side-Channel Information
  Marcus Brinkmann, Chitchanok Chuengsatiansup, Alexander May, Julian Nowakowski, Yuval Yarom
  CHES 2025
  Paper
• Solving the Hidden Number Problem for CSIDH and CSURF via Automated Coppersmith
  Jonas Meers, Julian Nowakowski
  Asiacrypt 2023
  Paper Code
• Too Many Hints — When LLL Breaks LWE
  Alexander May, Julian Nowakowski
  Asiacrypt 2023
  Paper Code Slides
• New NTRU Records with Improved Lattice Bases
  Elena Kirshanova, Alexander May, Julian Nowakowski
  PQCrypto 2023
  Paper Code Slides
• Approximate Divisor Multiples — Factoring with Only a Third of the Secret CRT-Exponents
  Alexander May, Julian Nowakowski, Santanu Sarkar
  Eurocrypt 2022
  Paper Slides
• Partial Key Exposure Attack on Short Secret Exponent CRT-RSA
  Alexander May, Julian Nowakowski, Santanu Sarkar
  Asiacrypt 2021
  Paper Slides

Scientific Service

Program Committees

• SAC 2026

Conference Reviews

• Asiacrypt 2022, 2023, 2024
• Crypto 2023, 2024, 2026
• Eurocrypt 2022, 2023, 2024, 2026
• PKC 2022
• STOC 2025

Journal Reviews

• Designs, Codes and Cryptography
• Journal of Cryptology
• Journal of Mathematical Cryptology
• IEEE Transactions on Information Theory

Teaching

Teaching Assistent

• Cryptography Winter 19, Winter 22, Winter 24
• Math II for Computer Science and IT-Security (Algebra, Graph Theory) Summer 22
• Math III for Computer Science and IT-Security (Probability Theory) Winter 23
• Public Key Cryptanalysis I Summer 23, Summer 24

Seminars

• Implementing Post-Quantum Standards Winter 22, Winter 23, Winter 24
• Seminar on Randomized Algorithms Summer 24
• Seminar on Real World Cryptanalysis Winter 21, Summer 23, Winter 23