Garazi Muguruza Lasa

I’m a fourth (last!) year PhD candidate supervised by Florian Speelman, Paola Grosso and Christian Schaffner, expected to graduate in July 2025. My office is located at Centrum Wiskunde & Informatica.

I’m interested broadly in quantum cryptography; I like finding relations between cryptographic tasks using information theory, thinking about security, new functionalities…

Articles

2025

ePrint

Cryptography from Lossy Reductions: Towards OWFs from ETH, and Beyond

Pouria Fallahpour , Alex B. Grilo , Garazi Muguruza, and Mahshid Riahinia

2025

Bib

@article{pouria2025cryptography,
  author = {Fallahpour, Pouria and Grilo, Alex B. and Muguruza, Garazi and Riahinia, Mahshid},
  title = {Cryptography from Lossy Reductions: Towards {OWFs} from {ETH}, and Beyond},
  year = {2025},
  url = {https://eprint.iacr.org/2025/778},
}

CiC

An efficient combination of quantum error correction and authentication

Yfke Dulek , Garazi Muguruza, and Florian Speelman

Communications in Cryptology, 2025

arXiv Bib

@article{dulek2022efficient,
  title = {An efficient combination of quantum error correction and authentication},
  author = {Dulek, Yfke and Muguruza, Garazi and Speelman, Florian},
  year = {2025},
  url = {https://doi.org/10.62056/ah2i5w7sf},
  doi = {10.62056/ah2i5w7sf},
  journal = {{Communications in Cryptology}},
  volume = {1},
  issue = {4},
}

2024

arXiv

Quantum Pseudorandomness Cannot Be Shrunk In a Black-Box Way

Samuel Bouaziz–Ermann , and Garazi Muguruza

2024

arXiv Bib

Quantum

Port-Based State Preparation and Applications

Garazi Muguruza, and Florian Speelman

Quantum, 2024

arXiv Bib

@article{muguruza2024portbased,
  title = {Port-{B}ased {S}tate {P}reparation and {A}pplications},
  author = {Muguruza, Garazi and Speelman, Florian},
  doi = {10.22331/q-2024-12-18-1573},
  url = {https://doi.org/10.22331/q-2024-12-18-1573},
  journal = {{Quantum}},
  issn = {2521-327X},
  publisher = {{Verein zur F{\"{o}}rderung des Open Access Publizierens in den Quantenwissenschaften}},
  volume = {8},
  pages = {1573},
  year = {2024},
}

arXiv

All Sp notions of quantum expansion are equivalent

Francisco Escudero Gutiérrez , and Garazi Muguruza

2024

arXiv Bib

2023

AsiaCrypt

Oblivious Transfer from Zero-Knowledge Proofs: Or How to Achieve Round-Optimal Quantum Oblivious Transfer and Zero-Knowledge Proofs on Quantum States

Léo Colisson , Garazi Muguruza, and Florian Speelman

2023

arXiv Bib

@article{colission2023oblivious,
  author = {Colisson, Léo and Muguruza, Garazi and Speelman, Florian},
  title = {Oblivious Transfer from Zero-Knowledge Proofs: Or How to Achieve Round-Optimal Quantum Oblivious Transfer and Zero-Knowledge Proofs on Quantum States},
  year = {2023},
  isbn = {978-981-99-8741-2},
  publisher = {Springer-Verlag},
  address = {Berlin, Heidelberg},
  url = {https://doi.org/10.1007/978-981-99-8742-9_1},
  doi = {10.1007/978-981-99-8742-9_1},
  booktitle = {Advances in Cryptology – ASIACRYPT 2023: 29th International Conference on the Theory and Application of Cryptology and Information Security, Guangzhou, China, December 4–8, 2023, Proceedings, Part VIII},
  pages = {3–38},
  location = {Guangzhou, China},
}