Methods and apparatus for use in quantum key distribution (QKD) are described. A quantum
QKD signal is generated at a source and transmitted through a fiber optic network to an …

The method involves exchange of a quantum signal between a first quantum node and a
second quantum node as is usual in known quantum key distribution (QKD) scheme. The …

The invention relates to methods and apparatus for Quantum key distribution. Such methods
including authenticating a first node in a communications network with a remote node in the …

Methods and apparatus for quantum key distribution are described, in particular including
methods and networks 300 arranged to improve and/or ensure the security of data …

A method of performing quantum key distribution across a network. The method involves a
first node first agreeing a quantum key with a first intermediate node in the path. Next the …

(57) ABSTRACT A method of user-authenticated quantum key distribution according to the
present invention shares a position having the same basis without making public basis …

The invention concerns a cryptographic key distribution sys tem comprising a server node, a
repeater network connected to the server node through a quantum channel, and a client …

(57) ABSTRACT A method of key distribution from a first entity to a second entity including
the first entity communicating with a move able key device so as to share a secret data with …

A method performed by a processor of a receiver of generating a secret key using a
quantum communication, the processor execute the method comprising: performing a …

References Cited A method and apparatus for sharing information. First bits are selected
from a shared secret key in a first device. The first bits US PATENT DOCUMENTS have a …