Mix-Context-Based Pseudonym Changing Privacy Preserving Authentication in VANETs

Table 1

Total amount of consumed time.

Scheme	Execution time for operation
	Pairing	Hash	Multiplication	Exponentiation
MPCPA	(1 + n)tp	nth	—	(1 + n)te
GSCP	(2 + 3n)tp	2nth	(n + 5)tm	—
KPSD	(3 + n)tp	nth	—	(4 + n)te + 5nts
IBBV	3ntp	3nth	(2n + 5)tm	—
SABV	(2 + 3n)tp	nth	—	nte