Quantum cheques
Abstract
We propose the idea of a quantum cheque scheme, a cryptographic protocol in which any legitimate client of a trusted bank can issue a cheque, that cannot be counterfeited or altered in anyway, and can be verified by a bank or any of its branches. We formally define a quantum cheque and present the first unconditionally secure quantum cheque scheme and show it to be secure against any no-signalling adversary. The proposed quantum cheque scheme can been perceived as the quantum analog of Electronic Data Interchange, as an alternate for current e-Payment Gateways.
- Publication:
-
Quantum Information Processing
- Pub Date:
- June 2016
- DOI:
- arXiv:
- arXiv:1505.05251
- Bibcode:
- 2016QuIP...15.2475M
- Keywords:
-
- Quantum money;
- Quantum cryptography;
- Quantum protocols;
- Quantum Physics;
- Computer Science - Cryptography and Security
- E-Print:
- 6 pages, 2 figures