Seminário de Computação e Informação Quântica 

15/07/2008, 11:00 — 12:00 — Sala P4.35, Pavilhão de Matemática
Vladimír Bužek, Slovak Academy of Sciences

Toward quantum-ensured privacy and voting

In my talk I will present a number of schemes that use quantum mechanics to preserve privacy. I will show that entangled quantum states can be useful in maintaining privacy. In particular, I will present a quantum-based voting scheme satisfying privacy requirements. A variation of these quantum-based schemes can be used for secure function evaluation. I will consider functions corresponding to group multiplication of $N$ group elements, with each element chosen by a different party. I will show how quantum mechanics can be useful in maintaining the privacy of the choices group elements.