Background and activities

Jiaxin Pan is an associate professor (førsteamanuensis) at the Department of Mathematical Sciences. He bleongs to the Algebra Group. He obtained his PhD from Ruhr-Universität Bochum (Germany) and after that he was a postdoc at Karlsruhe Institute of Technology (Germany).

Research Interests

Pan is interested in (public-key) cryptography, in particular, cryptographic systems with mathematically sound proofs. More specifically, he is interested in:

  • Identity-based encryption schemes
  • (Non-interactive) zero-knowledge proof systems
  • (Structure-preserving) signature schemes
  • Tight security reductions
  • More general topics (in cryptography) that he is fascinated by

Most of his work are published at top-tier journals and conferences (such as Journal of Cryptology, Crypto, Eurocrypt, Asiacrypt, etc.). Please visit his DBLP for a more up-to-date list of his publications.

Research Projects

  • 2022 – 2026: NTNU Outstanding Academic Fellows Programme (Career development award)
  • 2021 – 2025: Principal investigator of a Young Research Talent project, Reserch Council of Norway, under the topic ground-breaking research (FRIPRO)
  • 2021 – 2023: Principal investigator (jointly with Sanjam Garg from UC Berkeley) of a Peder Sather Grant

Program committees

It is my great honor to serve as a PC member of the following flagship and renowned international conferences:

Recent Publications at Peer-Reviewed Conference Proceedings and Journals

My research is regularly published at the flagship IACR conferences (such as ASIACRYPT, CRYPTO, and EUROCRYPT) and the major area IACR conference (PKC). One of them was invited and published in the prestigious journal, Journal of Cryptology.

The following is a list of my recent publications (still in construction).


Yuyu Wang and Jiaxin Pan. Non-Interactive Zero-Knowledge Proofs with Fine-Grained Security. Proc. of EUROCRYPT 2022 (Full version).

Jiaxin Pan and Benedikt Wagner. Lattice-based Signatures with Tight Adaptive Corruptions and More. Proc. of PKC 2022. (Full version)


Yuyu Wang, Jiaxin Pan, and Yu Chen. Fine-grained Secure Attribute-based Encryption. Proc. of CRYPTO 2021.

Shuai Han, Tibor Jager, Eike Kiltz, Shengli Liu, Jiaxin Pan, Doreen Riepel, and Sven Schäge. Authenticated Key Exchange and Signatures with Tight Security in the Standard Model. Proc. of CRYPTO 2021. (Full version)

Jiaxin Pan and Benedikt Wagner. Short Identity-Based Signatures with Tight Security from Lattices. Proc. of PQCRYPTO 2021. (Full version)

Jiaxin Pan, Chen Qian, and Magnus Ringerud. Signed Diffie-Hellman Key Exchange with Tight Security. Proc. of CT-RSA 2021. (Full version)


Roman Langrehr and Jiaxin Pan. Unbounded HIBE with Tight Security. Proc. of ASIACRYPT 2020. (Full version)

Roman Langrehr and Jiaxin Pan. Tightly Secure Hierarchical Identity-Based Encryption. Journal of Cryptology. (Invited)

Jiaxin Pan and Magnus Ringerud. Signatures with Tight Multi-User Security from Search Assumptions. Proc. of ESORICS 2020 (Full version)

Roman Langrehr and Jiaxin Pan. Hierarchical Identity-Based Encryption with Tight Multi-Challenge Security. Proc. of PKC 2020 (Full version)