Siamak F. Shahandashti
PhD CS, MSc BSc EE
Senior Lecturer (Associate Professor)
Cyber Security and Privacy Research Group
Dept. of Computer Science
University of York, UK
Quick Links
Upcoming Submission Deadlines
Security & Privacy Conference Timeline
Latest News
- 2026-07-07: Charles has been awarded his PhD. Congrats Dr. Dodd! Charles's thesis is on hash-dependent passwords and memory-hard functions and was supervised by Pooya Farshim and me. See Charles's thesis
- 2026-05-19: Our paper with Ibtihal and Helen on British users' perception, use, and concerns about authentication systems is accepted to HAISA 2026. See: ePrint, Conference Homepage
- 2026-03-10: Our paper, led by Charles and Karl, on multi-instance unrecoverability of iMHF-based password hashing, is accepted to ESORICS 2026. See: ePrint, Conference Homepage
- Older: News archive
Selected Recent Publications
Patrizia Di Campli San Vito, Eva Fringi, Penny S. Johnston, Leonardo C. T. Bezerra, Marios Aristodemou, Siamak F. Shahandashti, Emily O'Hara, Laura Fiona Whyte, Lin Luo, Mark Wong, Ayah Soufan, Yashar Moshfeghi and Simone Stumpf.
"Empowering Stakeholders with Participatory Auditing of Predictive AI: Perspectives from End-Users and Decision Subjects without AI Expertise".
CHI'26: 617:1–617:35, ACM, 2026.
ePrint
| Open Proceedings Version
| BibTeX
Aunam Quyoum, Mark Wong, Sebati Ghosh and Siamak F. Shahandashti.
"Minoritised Ethnic People’s Security and Privacy Concerns and Responses towards Essential Online Services".
SOUPS 2025: 259–278, USENIX, 2025.
ePrint
| Open Proceedings Version
| Presentation
| BibTeX
Hina Binte Haq, Syed Taha Ali and Siamak F. Shahandashti.
"Cuckoo's Nest: An Ultra-Lightweight DoS-Resilient Bitcoin Mempool".
ICBC 2025, IEEE, 2025.
ePrint
| DoI
| Code
| Dataset
| Slides
| Best Paper Award
| BibTeX
Selected Recent Funded Projects
PRIME: Protecting Minority Ethnic Communities Online
PHAWM: Participatory Harm Auditing Workbenches and Methodologies
Current Team
Research Associates:
Sebati Ghosh (on PRIME and CHEDDAR)
Marios Aristodemou (on PHAWM)
Research Students:
Ibtihal Alotaibi (PhD, with Helen Petrie)
Henry Gray (PhD, with Roberto Metere)
Christian Ndubisi (MScR, with Poonam Yadav)
Full Team List (including alumni and information for prospective students)
Teaching
Current Module: Cryptography Theory and Practice ( CTAP-H / CTAP-M )
Selected Academic Service
Program Committee (current):
University Service (current):
Co-Chair, Physical Sciences Ethics Committee
Member, Information Security Board
Member, Academic Ethics Compliance Committee
Departmental Service (selected, current):
Lead, Cyber Security and Privacy Research Group
Deputy Chair, Graduate School Board
On Other Platforms
Contact Details
Email: x.y@york.ac.uk
where x = siamak
and y = shahandashti
Public Key: OpenPGP File
Office: CSE/133
( map)
Tel: +44 1904 325413
Postal Address
Dept of Computer Science
University of York
York, YO10 5GH
United Kingdom
Previously at
- Newcastle Uni, UK
- ENS, Paris, France
- Victoria Uni, Australia
- Wollongong Uni, Australia