Remote Surveillance System without Privacy Leakage for Contacts in Infectious Disease

Table 1

Notations and functions.

Notations	Functions
	Health center’s public key
	Hospital’s public key
	Health center’s private key
	User’s session key
Ba	Contact’s blurry home address
C	Contact’s contact information
HI	Contact’s health data
LI	Contact’s location data
PI	Contact’s personal information
N_CD	Notification of confirmed diagnosis
	Register function
	Address transfer function
	Health data upload function
	Data-transfer function of suspected user
	Transfer function of session key
	Double encryption for location data
	First-layer asymmetric encryption for LI
	Second-layer symmetric encryption for LI
	Decryption function for LI