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Method and apparatus for controlling encrypted multicast transmission of packet data

A technology for grouping data and controlling grouping, which is applied to security devices, secure communication devices, and key distribution, and can solve problems such as difficulty in maintaining cryptographic key materials

Active Publication Date: 2021-06-01
ARM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it can be difficult to maintain cryptographic keying material associated with several secure sessions

Method used

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  • Method and apparatus for controlling encrypted multicast transmission of packet data
  • Method and apparatus for controlling encrypted multicast transmission of packet data
  • Method and apparatus for controlling encrypted multicast transmission of packet data

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Embodiment Construction

[0071] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood that the following description of embodiments is not to be taken in a limiting sense. The scope of the present invention is not intended to be limited according to the embodiments described below or according to the accompanying drawings, which are regarded as illustrative only.

[0072] The drawings are to be regarded as schematic representations and components illustrated in the figures are not necessarily shown to scale. Rather, the different components are shown such that their functions and general purpose are apparent to those skilled in the art. Any connection or coupling between functional modules, devices, components, or other physical or functional units shown in the figures or described herein may also be achieved through indirect connections or couplings. Linkages between components can also be established via wi...

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Abstract

Method and apparatus for controlling encrypted multicast transmission of packet data. A first plurality (201) of network nodes (120-123, 130-133) of a network (100) are associated with first cryptographic keying material and a multicast IP address. Associating a second plurality (202) of network nodes (120-123, 130-133) of said network (100) with second cryptographic keying material and said multicast IP address. The first cryptographic keying material has a different secret than the second cryptographic keying material.

Description

technical field [0001] Various embodiments relate to methods and apparatus. In particular, various embodiments relate to techniques for controlling encrypted multicast transmission of packet data based on the secrecy of first and second cryptographic keying materials and also based on the multicast IP address. Background technique [0002] The Internet of Things (IOT) results in communication between a large number of devices, each implementing a network node of a corresponding network. To handle the interaction of a large number of devices, point-to-multipoint communication (multicast transmission) can be a powerful tool: here, at a certain point in time, a sending network node can deliver a message to a large number of receiving network nodes. [0003] However, known multicast transmission techniques face certain limitations and disadvantages. For example, for IOT applications in constrained environments (as may be the case in lighting), it is often necessary to define s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W12/0431H04L9/08H04W4/70H04W12/0433H04W12/041H04L29/06
CPCH04L63/065H04W4/70H04W12/0433H04W12/041H04W12/0431H04L67/63H04L9/0833H04L9/085H04L9/0891H04L63/0428
Inventor A·索马拉约H·特施霍芬S·S·库马尔
Owner ARM LTD