Key distribution in a multiple access network using quantum cryptography
US5768378A · kind A · utility
75Cited by
9References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1996 |
| Grant date | Jun 16, 1998 |
| Priority date | — |
| Expiry date | Mar 7, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/07
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a method of quantum cryptography, a transmitter (T) communicates on a quantum channel with several receivers (R1-R3). The receivers are located on different branches of a common communications network The method establishes a different respective secret key for each receiver. A timing pulse may be transmitted from the transmitter to the receivers to synchronise the receivers prior to a transmission on a quantum channel. The quantum channel may be multiplexed and transmitted concurrently with classical multi-photon transmissions on the network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.