Broadcast encryption based home security system

• US 20070183597A1
• Filed: 02/07/2006
• Published: 08/09/2007
• Est. Priority Date: 02/07/2006
• Status: Active Grant

• Current Assignee: 1339416 BC Limited, Generac Holdings Incorporated, Generac Power Systems Incorporated (Generac Holdings Incorporated)
• Original Assignee: International Business Machines Corporation
• Inventors: Bellwood, Thomas, Rutkowski, Matthew, Tarpinian, Alexander, Chumbley, Robert
• Granted Patent: US 8,325,926 B2
• Time in Patent Office: Days
• US Class Current: 380/270
• CPC Class Codes: G06F 21/10 Protecting distributed programs or content, e.g. vending or licensing of copyrighted material protection in video systems or pay television H04N7/16 ; Digital rights management [DRM]
• CPC Class Codes: G08B 13/19697 Arrangements wherein non-video detectors generate an alarm themselves
• CPC Class Codes: G08B 25/003 Address allocation methods and details
• CPC Class Codes: G08B 25/009 Signalling of the alarm condition to a substation whose identity is signalled to a central station, e.g. relaying alarm signals in order to extend communication range
• CPC Class Codes: G08B 25/10 using wireless transmission systems G08B25/009 takes precedence
• CPC Class Codes: H04L 12/2803 Home automation networks
• CPC Class Codes: H04L 12/2807 Exchanging configuration information on appliance services in a home automation network arrangements for maintenance or administration involving network analysis for automatically determining the actual topology of a network H04L41/12; hardware or software tools for network management using graphical user interfaces H04L41/22; address allocation H04L61/50
• CPC Class Codes: H04L 12/2838 Distribution of signals within a home automation network, e.g. involving splitting/multiplexing signals to/from different paths adaptations of television systems for transmission by electric cable for domestic distribution H04N7/106; hybrid transport H04L12/6418; home network arrangements specially adapted for distribution of digital video signals H04N7/24
• CPC Class Codes: H04L 2463/062 applying encryption of the keys cryptographic mechanisms or cryptographic arrangements for key distribution using key encryption key H04L9/0822
• CPC Class Codes: H04L 63/045 wherein the sending and receiving network entities apply hybrid encryption, i.e. combination of symmetric and asymmetric encryption cryptographic mechanisms or cryptographic arrangements using a plurality of keys or algorithms H04L9/14
• CPC Class Codes: H04L 63/065 for group communications cryptographic mechanisms or cryptographic arrangements for key management involving conference or group key H04L9/0833

Abstract

Provided is a method for providing a home or business security system that relies upon data encryption for both communication and the storage of content. The disclosed technology incorporates all the devices necessary for a comprehensive security system, including, but not limited to, controllers, monitors, alarms and communication media. The system may include an unlimited number of devices and, further, individual devices may be added and removed as needed. Users may define and change the boundaries of a security system or, in other words, decide what devices to include or not include in such a system. A defined boundary does not need to be confined to a single location. In one embodiment, the claimed subject matter incorporates xCP based broadcast encryption technology.

Claims

1. A security system, comprising:

a plurality of security components;

a cluster that binds the plurality of components into a secure configuration;

a plurality of messages, each message comprising;

an encrypted message text;

a key management block (KMB); and

an encrypted title key (ETk);

logic for transmitting the encrypted message text, the KMB and the ETk among the security components; and

logic for decrypting the encrypted message text using the KMB and the ETk.

2. The security system of claim 1, wherein the transmission of the encrypted message is via a wireless protocol based upon xCP broadcast encryption.

3. The security system of claim 1, the logic for decrypting the encrypted message, comprising:

logic for decrypting the ETk to generate a title key (Kt); and

logic for decrypting the encrypted message by using the Kt.

4. The security system of claim 1, wherein the security system is a home security system.

5. The security system of claim 1, wherein the security system is a business security system.

6. The security system of claim 1, wherein the security components are selected from a list comprising:

a door alarm;

a window alarm;

a keypad.

7. The wireless security system of claim 1, the system of claim 1 further comprising a remote location incorporated into the cluster.

8. A method for delivery of a security service, comprising:

organizing a plurality of security components into a cluster that binds the plurality of components into a secure configuration;

creating a message that incorporates an encrypted message text, a key management block (KMB), and an encrypted title key (ETk);

transmitting the encrypted message text, the KMB and the ETk among the security components; and

decrypting the encrypted message text using the KMB and the ETk.

9. The method for delivery of a security service of claim 8, wherein the transmitting of the encrypted message is via a wireless protocol based upon xCP broadcast encryption.

10. The method for delivery of a security service of claim 8, the decrypting of the encrypted message, comprising:

decrypting the ETk to generate a title key (Kt); and

decrypting the encrypted message by using the Kt.

11. The method for delivery of a security service of claim 8, further comprising deploying the method in a home security system.

12. The method for delivery of a security service of claim 8, further comprising deploying the method in a business security system.

13. The method delivery of a security service of claim 8, further comprising selecting the security components for inclusion into the cluster from a list comprising:

a door alarm;

a window alarm;

a keypad.

14. The method for delivery of a security service of claim 8, the system of claim 8, further comprising incorporating a remote location into the cluster.

15. A method for providing security to a home or business, comprising:

grouping a plurality of security components into a cluster that binds the plurality of components into a secure configuration;

generating a message, wherein the message includes an encrypted message text, a key management block (KMB), and an encrypted title key (ETk);

transmitting the encrypted message text, the KMB and the ETk between two of the security components;

decrypting the encrypted message text using the KMB and the ETk to produce a decrypted message; and

controlling the component receiving the encrypted based upon the decrypted message.

16. The method of claim 15, wherein the transmitting of the encrypted message is via a wireless protocol based upon xCP broadcast encryption.

17. The method of claim 15, decrypting the encrypted message, comprising:

decrypting the ETk to generate a title key (Kt); and

decrypting the encrypted message by using the Kt.

18. The method of claim 15, wherein the method is implemented in a home security system.

19. The method of claim 15, wherein the method is implemented in a business security system.

20. The method of claim 15, further comprising selecting the security components to group into the cluster from a list comprising:

a door alarm;

a window alarm;

a keypad.