Publications

• 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 Talk
• Approximate Divisor Multiples — Factoring with Only a Third of the Secret CRT-Exponents
  Alexander May, Julian Nowakowski, Santanu Sarkar
  Eurocrypt 2022
  Paper Slides Talk
• Partial Key Exposure Attack on Short Secret Exponent CRT-RSA
  Alexander May, Julian Nowakowski, Santanu Sarkar
  Asiacrypt 2021
  Paper Slides Talk

Scientific Service

I served as a reviewer for the following conferences and journals:

• Asiacrypt 2022, 2023
• Crypto 2023
• Eurocrypt 2022, 2023, 2024
• PKC 2022
• Journal of Mathematical Cryptology

Teaching

I have taught the following courses at Ruhr-University Bochum:

• Cryptography — Exercises (Winter 19, Winter 22)
• Implementing Post-Quantum Standards (Winter 22, Winter 23)
• Math II for Computer Science and IT-Security (Algebra, Graph Theory) — Exercises (Summer 22)
• Math III for Computer Science and IT-Security (Probability Theory) — Exercises (Winter 23)
• Public Key Cryptanalysis I — Exercises (Summer 23)
• Seminar on Real World Cryptanalysis (Winter 21, Summer 23, Winter 23)