4 papers · 1 filter
An efficient combination of quantum error correction and authentication
Yfke Dulek, Garazi Muguruza, Florian Speelman
When sending quantum information over a channel, we want to ensure that the message remains intact. Quantum error correction and quantum authentication both aim to protect (quantum…
Impossibility of Quantum Virtual Black-Box Obfuscation of Classical Circuits
Gorjan Alagic, Zvika Brakerski, Yfke Dulek +1
Virtual black-box obfuscation is a strong cryptographic primitive: it encrypts a circuit while maintaining its full input/output functionality. A remarkable result by Barak et al.…
Secure Multi-party Quantum Computation with a Dishonest Majority
Yfke Dulek, Alex B. Grilo, Stacey Jeffery +2
The cryptographic task of secure multi-party (classical) computation has received a lot of attention in the last decades. Even in the extreme case where a computation is performed…
Quantum ciphertext authentication and key recycling with the trap code
Yfke Dulek, Florian Speelman
We investigate quantum authentication schemes constructed from quantum error-correcting codes. We show that if the code has a property called purity testing, then the resulting aut…