Breaking and making quantum money: toward a new quantum cryptographic protocol
Quantum Physics
2011-04-26 v1
Abstract
Public-key quantum money is a cryptographic protocol in which a bank can create quantum states which anyone can verify but no one except possibly the bank can clone or forge. There are no secure public-key quantum money schemes in the literature; as we show in this paper, the only previously published scheme [1] is insecure. We introduce a category of quantum money protocols which we call collision-free. For these protocols, even the bank cannot prepare multiple identical-looking pieces of quantum money. We present a blueprint for how such a protocol might work as well as a concrete example which we believe may be insecure.
Cite
@article{arxiv.0912.3825,
title = {Breaking and making quantum money: toward a new quantum cryptographic protocol},
author = {Andrew Lutomirski and Scott Aaronson and Edward Farhi and David Gosset and Avinatan Hassidim and Jonathan Kelner and Peter Shor},
journal= {arXiv preprint arXiv:0912.3825},
year = {2011}
}
Comments
14 pages