NETWORK SECURITY PARAMETER GENERATION AND DISTRIBUTION

• US 20120311683A1
• Filed: 06/28/2011
• Published: 12/06/2012
• Est. Priority Date: 06/01/2011
• Status: Active Grant

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Klein, Philippe, Kliger, Avi
• Granted Patent: US 9,369,448 B2
• Time in Patent Office: Days
• US Class Current: 726/6
• CPC Class Codes: H04L 41/28 Restricting access to network management systems or functions, e.g. using authorisation function to access network configuration
• CPC Class Codes: H04L 63/06 for supporting key management in a packet data network cryptographic mechanisms or cryptographic arrangements for key management H04L9/08
• CPC Class Codes: H04L 63/20 for managing network security; network security policies in general filtering policies H04L63/0227

Abstract

Disclosed are various embodiments for facilitating network security parameter distribution and generation in a converged network incorporating multiple heterogeneous link layer networking technologies. Embodiments are provided for connecting network devices through multiple heterogeneous link layer networking technologies using a converged network password. Embodiments are provided for connecting network devices through multiple heterogeneous link layer networking technologies using a pairing event protocol, such as, for example, a push button protocol.

Claims

1. A system, comprising:

a plurality of network devices in data communication by way of a converged data communications network employing a plurality of heterogeneous link layer technologies; and

wherein at least one of the network devices includes a plurality of network interfaces to the converged data communications network, a first one of the network interfaces employs a first one of the heterogeneous link layer technologies, a second one of the network interfaces employs a second one of the heterogeneous link layer technologies, and the at least one of the network devices further includes network security parameter management logic that is configured to;

obtain a converged network password; and

connect to the converged data communications network by pairing one of the network interfaces using a native pairing protocol of a corresponding one of the heterogeneous link layer technologies based at least in part on the converged network password.

2. The system of claim 1, wherein the network security parameter management logic is further configured to:

generate a first network password for the first one of the network interfaces based at least in part on the converged network password; and

generate a second network password for the second one of the network interfaces based at least in part on the converged network password.

3. The system of claim 2, wherein the first network password and the second network password are each individually generated by applying a respective hash function to the converged network password.

4. The system of claim 2, wherein the first network password is generated by applying a hash function to the converged network password, and the second network password is generated by truncating the first network password.

5. The system of claim 1, wherein the one of the network interfaces is the first one of the network interfaces, and the network security parameter management logic is further configured to connect to the converged data communications network by pairing the second one of the network interfaces using another native pairing protocol of the second one of the heterogeneous link layer technologies based at least in part on the converged network password.

6. The system of claim 1, wherein the one of the network interfaces is the first one of the network interfaces, and the network security parameter management logic is further configured to:

obtain, by way of the first one of the network interfaces, a network security parameter for pairing the second one of the network interfaces; and

connect to the converged data communications network by pairing the second one of the network interfaces based at least in part on the network security parameter.

7. The system of claim 1, wherein the at least one of the network devices further includes an abstraction layer configured to:

obtain a first data frame and a second data frame from a network layer;

route the first data frame to a destination by way of the first one of the network interfaces; and

route the second data frame to the destination by way of the second one of the network interfaces.

8. The system of claim 7, wherein a media access control (MAC) address is allocated to the abstraction layer, and the MAC address is unique within the converged data communications network.

9. The system of claim 1, wherein the at least one of the network devices further includes network security parameter distribution logic configured to:

obtain a request for a network security parameter, the request originating in another one of the network devices;

determine whether the network security parameter is associated with at least one of the network interfaces;

send the network security parameter to the other one of the network devices by way of the converged data communications network when the network security parameter is associated with the at least one of the network interfaces; and

propagate the request in the converged data communications network away from the other one of the network devices when the network security parameter is not associated with the at least one of the network interfaces.

10. A system, comprising:

a plurality of network devices in data communication by way of a converged data communications network employing a plurality of heterogeneous link layer technologies; and

a gateway device, corresponding to a first one of the network devices, the gateway device comprising network security parameter distribution logic that is configured to;

obtain a network security parameter for each of a plurality of network portions of the converged data communications network, a first one of the network portions employing a first one of the heterogeneous link layer technologies, a second one of the network portions employing a second one of the heterogeneous link layer technologies, each of the network security parameters facilitating an authenticated connection to a corresponding one of the network portions;

obtain a request for at least one of the network security parameters originating from a second one of the network devices; and

provide the at least one of the network security parameters to the second one of the network devices by way of the converged data communications network.

11. The system of claim 10, wherein the gateway device further comprises logic that maintains a topology of the network devices connected to the converged data communications network.

12. The system of claim 10, wherein the gateway device is configured to route data from the converged data communications network to another network.

13. The system of claim 10, wherein the request is obtained from a third one of the network devices, and the at least one of the network security parameters is provided to the second one of the network devices by way of the third one of the network devices.

14. The system of claim 10, wherein at least one of the network devices corresponds to a relay network device having a plurality of first network interfaces, at least one of the network devices corresponds to a terminal network device having a plurality of second network interfaces, the relay network device is configured to relay management frames and data frames between the first network interfaces, and the terminal network device is configured to relay management frames but not data frames between the second network interfaces.

15. A method, comprising the steps of:

generating, in a first one of a plurality of network devices, a pairing event;

distributing, in the first one of the network devices, the pairing event to a converged data communications network by way of a first one of a plurality of heterogeneous link layer technologies;

obtaining, in a second one of a plurality of network devices, the pairing event by way of the converged data communications network;

initiating, in the second one of the network devices, a pairing with a third one of the network devices by way of a second one of the heterogeneous link layer technologies using a native pairing event protocol of the second one of the heterogeneous link layer technologies; and

wherein the pairing is configured to connect the third one of the network devices to the converged data communications network by way of the second one of the heterogeneous link layer technologies.

16. The method of claim 15, wherein the pairing event corresponds to a push button event, and the push button event is generated in the first one of the network devices in response to a user pushing a button of the first one of the network devices.

17. The method of claim 15, further comprising the step of requesting, in the third one of the network devices, a network security parameter over the converged data communications network for pairing the third one of the network devices with a fourth one of the network devices.

18. The method of claim 15, further comprising the steps of:

generating, in the third one of the network devices, another pairing event;

sending, in the third one of the network devices, the other pairing event to the second one of the network devices by way of the second one of the heterogeneous link layer technologies; and

wherein the second one of the network devices is configured to perform the step of initiating the pairing in response to obtaining the pairing event and the other pairing event within a predefined length of time.

19. The method of claim 15, further comprising the steps of:

obtaining, in a fourth one of a plurality of network devices, the pairing event by way of the converged data communications network;

initiating, in the fourth one of the network devices, another pairing with the third one of the network devices by way of a third one of the heterogeneous link layer technologies using a native pairing event protocol of the third one of the heterogeneous link layer technologies; and

wherein the other pairing is configured to connect the third one of the network devices to the converged data communications network by way of the third one of the heterogeneous link layer technologies.

20. The method of claim 15, further comprising the steps of:

initiating, in the second one of the network devices, another pairing with the third one of the network devices by way of a third one of the heterogeneous link layer technologies using a native pairing event protocol of the third one of the heterogeneous link layer technologies; and

wherein the other pairing is configured to connect the third one of the network devices to the converged data communications network by way of the third one of the heterogeneous link layer technologies.