group key

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group key

An encryption key that is used by everyone on the network or in the vicinity. Contrast with an "individual key" that is used for only one user, also called "pairwise key," "per-station key" and "unique key." Group keys and individual keys may be used in tandem. For example, group keys may be used for broadcasting to everyone, while individual keys are used for transmitting to one user.
References in periodicals archive ?
A much more immune scheme is to distribute a unique pairwise key for each pair of sensor nodes.
The node does not share a pairwise key with the other nodes in its key ring preloaded.
Then, each member generates a random value and encrypts it using the pairwise key shared with the current CH.
A pairwise key pre-distribution scheme for wireless sensor networks, In: Proceedings of 10th ACM Conference on Computer and Communications Security (CCS'03), p.
This system performs less number of computations to create a pairwise key between any pair of sensors in the communication range.
Key generation and pairwise key establishment between militants is done by DKO methodology.
In the key distribution model of this scheme, the authors propose to use a limited pairwise key scheme at the first level between [N.
Three common security assumptions are as follows: (1) two nodes can establish a pairwise key based on a key management scheme, (2) any compromised node has no effect on the pairwise keys shared by other pairs of valid nodes, and (3) the compromised node is eventually detected by most of its neighbors within a certain period.
The PRPF-based key management scheme [6] consists of three phases: 1) Key pre-distribution; 2) Shared-key discovery; an 3) Establishing pairwise key by an HN-sensor.
This section describes about the establishment of pairwise key between the two nodes X and Y.
The other is a centralized key management scheme [1, 8]; in this case, a base station plays the role of key server, to establish a pairwise key for any two devices.
Agrawal, "Efficient pairwise key establishment and management in static wireless sensor networks," in Proc.