SYSTEM FOR TRANSMITTING A DATA SIGNAL IN A NETWORK, METHOD, MOBILE TRANSMITTING DEVICE AND NETWORK DEVICE

• US 20130148807A1
• Filed: 08/08/2012
• Published: 06/13/2013
• Est. Priority Date: 12/12/2011
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: SCHWAGER, Andreas
• Granted Patent: US 8,873,756 B2
• Time in Patent Office: Days
• US Class Current: 380/270
• CPC Class Codes: H04B 7/00 Radio transmission systems, i.e. using radiation field H04B10/00, H04B15/00 take precedence
• CPC Class Codes: H04L 63/062 for key distribution, e.g. centrally by trusted party cryptographic mechanisms or cryptographic arrangements for key distribution involving a central third party H04L9/0819
• CPC Class Codes: H04L 63/18 using different networks or channels, e.g. using out of band channels cryptographic mechanisms or cryptographic arrangements for key distribution involving distinctive intermediate devices or communication paths H04L9/0827; cryptographic mechanisms or cryptographic arrangements for authentication using a plurality of channels H04L9/3215
• CPC Class Codes: H04L 9/00 Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
• CPC Class Codes: H04L 9/0861 Generation of secret information including derivation or calculation of cryptographic keys or passwords
• CPC Class Codes: H04W 12/041 Key generation or derivation
• CPC Class Codes: H04W 12/047 without using a trusted network node as an anchor

Abstract

A system for transmitting a data signal is provided, comprising a plurality of network devices; a network connecting the plurality of network devices based on at least a first communication carrier, wherein the first communication carrier is a wired communication carrier; a network key generator configured to generate a network key; a mobile transmitting device configured to transmit the network key to at least one of the plurality of network devices on a second communication carrier, wherein the second communication carrier is a wireless carrier, and wherein the network devices are configured to communicate with the other network devices based on a link encryption key based on the network key. A corresponding method, a mobile transmitting device and a network device are provided as well.

Claims

1. System for transmitting a data signal, comprising

a plurality of network devices;

a network connecting the plurality of network devices based on at least a first communication carrier, wherein the first communication carrier is a wired communication carrier;

a network key generator configured to generate a network key;

a mobile transmitting device configured to transmit the network key to at least one of the plurality of network devices on a second communication carrier, wherein the second communication carrier is a wireless carrier, and wherein the network devices are configured to communicate with the other network devices based on a link encryption key based on the network key.

2. System according to claim 1, wherein the network is further based on a third communication carrier, the system further comprising

a link encryption generator configured to generate a further link encryption key for the third communication carrier based on the network key;

and the network devices being further configured to transmit the data signal between the network devices on the third communication carrier based on the further link encryption key.

3. System according to claim 1, wherein the second communication carrier is a radio frequency identification carrier.

4. System according to claim 1, wherein the second communication carrier is a near field communication carrier.

5. System according to claim 1, wherein the first communication carrier is a power line communication carrier, a digital-subscriber-line carrier, a coaxial line carrier, and Ethernet carrier, or a twisted-pair line carrier.

6. Method for transmitting a data signal in a network including a plurality of network devices based on at least a first communication carrier, wherein the first communication carrier is a wired communication carrier, the method comprising:

generating a network key;

transmitting the network key from a mobile transmitting device to at least one of the plurality of network devices on a second communication carrier, wherein the second communication carrier is a wireless communication carrier; and

transmitting the data signal between the network devices on the first communication carrier based on a link encryption key that is based on the network key.

7. Method according to claim 6, wherein the network is further based on a third communication carrier, the method further comprising

generating a further link encryption key for the third communication carrier based on the network key;

and

transmitting the data signal between the network devices on the third communication carrier based on the further link encryption key.

8. Method according to claim 6, wherein the second communication carrier is a radio frequency identification carrier.

9. Method according to claim 6, wherein the second communication protocol is a near field communication carrier.

10. Method according to claim 6, wherein the first communication carrier is a power line communication carrier, a digital-subscriber-line carrier, a coaxial line carrier, and Ethernet carrier, or a twisted-pair line carrier.

11. Mobile transmitting device for transmitting a network key used for communicating based on a first communication carrier, wherein the first communication carrier is a wired communication carrier, the device comprising

a storage unit configured to store the network key;

and

an interface configured to transmit the network key based on a second communication carrier, wherein the second communication carrier is a wireless communication carrier.

12. Network device for transmitting a data signal on a network based on a first communication carrier and a link encryption key, wherein the first communication carrier is a wired communication carrier, the network device comprising

an interface configured to receive a network key based on a second communication carrier, wherein the second communication carrier is a wireless communication carrier;

and

a link encryption key generator configured to generate the link encryption key based on the network key.

13. System for transmitting data, comprising

a plurality of network devices;

a network connecting the plurality of network devices based on at least two communication carriers, wherein the at least two communication carriers are wireless communication carriers;

a network key generator configured to generate a network key;

a mobile transmitting device configured to transmit the network key to at least one of the plurality of network devices on a further communication carrier, wherein the further communication carrier is a wireless carrier, and wherein the network devices are configured to communicate with the other network devices on the at least two communication carriers based on a link encryption key based on the network key.