Secure Information Sharing System for Online Patient Networks

Table 1

Notations.

	Security Manager
	the group keys set of group G
	the t-th group
	the total number of groups in a SISS server
	the master group key of group G
	the j-th ciphertext-page of a member i in a group t
	the total number of group G’s members
	session number
	the total number of ciphertext-page CP
	a member i of the t-th group in the j-th session
	a group session key for each member i of t-th group in the j-th session
	: five subkeys for a group session key of a member i in group G
	random number of member i in the j-th session
	pseudonym of member i in the j-th session
	hash function
	the value hashed t-times for x
	pseudorandom function
	stereoscopic image information for 3D real model of member i in the j-th session
	a rendered image of
	Encryption function
	Decryption function
	a message