Encryption key generation
AssigneeNEC Corporation
InventorsTakao Ochi, Ken-ichiro Yoshino, Akio Tajima
Life of this patent
Estimating the term…
Abstract
A first device transmits a first random number to a second device through a first quantum channel, and receives a second random number from the second device through a second quantum channel. The first device generates a first encryption key based on the first random number and the second random number. The second device transmits the second random number to the first device through the second quantum channel, and receives the first random number from the first device through the first quantum channel. The second device generates a second encryption key based on the first random number and the second random number.
Claims16
A device, comprising:
- a transmitter configured to transmit first information to another device through a first quantum channel;
- a receiver configured to receive second information from the another device through a second quantum channel;
- and
- a data processor configured to generate an encryption key based on the first information and the second information.
A system comprising:
- a first device configured to:
- transmit first information to a second device through a first quantum channel,
- receive second information from the second device through a second quantum channel, and
- generate a first encryption key based on the first information and the second information;
- and
- the second device configured to:
- transmit the second information to the first device through the second quantum channel,
- receive the first information from the first device through the first quantum channel, and
- generate a second encryption key based on the first information and the second information.
A method comprising:
- transmitting first information to another device through a first quantum channel,
- receiving second information from the another device through a second quantum channel;
- and
- generating an encryption key based on the first information and the second information.
A method comprising:
- in a first device,
- transmitting first information to a second device through a first quantum channel,
- receiving second information from the second device through a second quantum channel;
- and
- generating a first encryption key based on the first information and the second information;
- and
- in the second device,
- transmitting the second information to the first device through the second quantum channel,
- receiving the first information from the first device through the first quantum channel, and
- generating a second encryption key based on the first information and the second information.
Dependencies are inferred from the claim text.