QUANTUM COMMUNICATION BETWEEN ANONYMOUS SENDER AND ANONYMOUS RECEIVER IN THE PRESENCE OF STRONG ADVERSARY

Varování

Publikace nespadá pod Filozofickou fakultu, ale pod Fakultu informatiky. Oficiální stránka publikace je na webu muni.cz.
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BOUDA Jan ŠPROJCAR Josef

Rok publikování 2011
Druh Článek v odborném periodiku
Časopis / Zdroj International Journal of Quantum Information
Fakulta / Pracoviště MU

Fakulta informatiky

Citace
Doi http://dx.doi.org/10.1142/S0219749911007691
Obor Informatika
Klíčová slova Quantum multi-party protocol; information theoretic security; denial of service attacks; anonymous communication
Popis While many scenarios of anonymous communication can be solved by various famous classical techniques including mix nets or dining cryptographers (DC), an abundant amount of anonymous tasks remains open. In this paper, we present a solution to one such task. Our protocol serves as a private communication channel for quantum messages while ensuring that both the sender and the receiver stay anonymous in a set of all parties. Our protocol is a continuation of our previous work on anonymous transmission of quantum information. The protocol does not require trusted parties, and is secure against an active adversary. It can also withstand denial of service attacks. The protocol exhibits an advantage of quantum resources over classical because no classical solution is known (in the same security settings). Entanglement swapping technique is used to create "symmetry" in the protocol, which makes it very transparent and easier to analyze.
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