Table 10.

Communication security protocols for smart healthcare CPS.

Type	Description	Security Aspect
Access Controls and Identity Management [69]	Ensure communication access to authorized entities within the CPS.	Prevent unauthorized access and establish trusted communication channels.
TLS and SSL [113]	Provide encryption and authentication for end-to-end security of data in transit.	Protect against eavesdropping and MITM attacks.
MAC and Digital Signatures [114]	Verify the authenticity and integrity of transmitted messages.	Ensure that data remain unchanged and originate from a legitimate source.
VPNs [115]	Create encrypted tunnels between nodes.	Enhance privacy and security.
PKC [116]	Ensures that data remain confidential from the point of origin to the destination.	Minimize the risk of interception and unauthorized access.
SSH [117]	Encrypts communication sessions for remote access and command execution.	Adds an extra layer of protection against unauthorized access and data tampering.
Network Segmentation [118]	Divides the network into segments with restricted access.	Limits the impact of unauthorized access and reduces the attack surface.