Research Article

Certificateless Cross-Domain Group Authentication Key Agreement Scheme Based on ECC

Table 1

Notation used in this paper.

NotationDescription

A collection of all cross-domain participants
The th domain
The registry
Public key of the system
Key generation center for domain
The private key of
The public key of
The th participant of the th domain
The identity of
The private key of the user
The public key of the user
Intragroup key negotiated by the user of the th domain
Cross-domain group key
Represents no message or an unknown value