An Anonymous Access Authentication Scheme Based on Proxy Ring Signature for CPS-WMNs

Table 1

Symbols and descriptions.

Symbols	Descriptions
	Ring ’s identification
	The public/private key of entity
Param	System parameters
	The warrant for the members in ring
	The authorization of proxy signature for
	The session key between and
	Using symmetric key to encrypt message
	Using algorithm ALG and s public key to encrypt message
	Using algorithm ALG to sign message with ’s signing key
	The current timestamp
	Concatenation of messages and