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.
Claims24
A device comprising:
- a transmitter configured to transmit a first random number to another device through a first quantum channel,
- a receiver configured to receive a second random number from the another device through a second quantum channel;
- and
- a data processor configured to generate an encryption key based on the first random number and the second random number.
A system comprising:
- a first device configured to:
- transmit a first random number to a second device through a first quantum channel,
- receive a second random number from the second device through a second quantum channel, and
- generate a first encryption key based on the first random number and the second random number;
- and
- the second device configured to:
- transmit the second random number to the first device through the second quantum channel,
- receive the first random number from the first device through the first quantum channel, and
- generate a second encryption key based on the first random number and the second random number.
A method comprising:
- transmitting a first random number to another device through a first quantum channel,
- receiving a second random number from the another device through a second quantum channel;
- and
- generating an encryption key based on the first random number and the second random number.
A method comprising:
- in a first device,
- transmitting a first random number to a second device through a first quantum channel,
- receiving a second random number from the second device through a second quantum channel;
- and
- generating a first encryption key based on the first random number and the second random number;
- and
- in the second device,
- transmitting the second random number to the first device through the second quantum channel,
- receiving the first random number from the first device through the first quantum channel, and
- generating a second encryption key based on the first random number and the second random number.
Dependencies are inferred from the claim text.