Analysis and Enhancement of a Password Authentication and Update Scheme Based on Elliptic Curve Cryptography

Table 1

Comparisons of security features.

	PGAR	VTAR	PCIAR	FSR	DoSAR	KTIAR
[6]	No	No	Yes	No	No	No
[10]	No	No	No	Yes	No	Yes
[13]	No	Yes	Yes	Yes	No	Yes
Ours	Yes	Yes	Yes	Yes	Yes	Yes