Invention Grant
US07840810B2 Systems and methods for rejoining a second group of nodes with a first group of nodes using a shared group key
有权
使用共享组密钥重新连接具有第一组节点的第二组节点的系统和方法
- Patent Title: Systems and methods for rejoining a second group of nodes with a first group of nodes using a shared group key
- Patent Title (中): 使用共享组密钥重新连接具有第一组节点的第二组节点的系统和方法
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Application No.: US11624521Application Date: 2007-01-18
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Publication No.: US07840810B2Publication Date: 2010-11-23
- Inventor: W. Bryant Eastham
- Applicant: W. Bryant Eastham
- Applicant Address: JP Osaka
- Assignee: Panasonic Electric Works Co., Ltd.
- Current Assignee: Panasonic Electric Works Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Austin Rapp & Hardman
- Main IPC: H04L9/08
- IPC: H04L9/08 ; H04L9/32 ; H04K1/00

Abstract:
A method for rejoining a second group of nodes with a first group of nodes is described. A first state of a first group key associated with a first group of nodes is received. The first state of the first group key is multicast to a second group of nodes. The first group key is rekeyed to a second group key associated with the second group of nodes. A second state of the second group key is multicast to the second group of nodes. A third state of a third group key associated with the first group of nodes is received. A rekey command is multicast to the second group of nodes if the third state is different from the second state. The second group key is rekeyed to the third group key.
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