Two-Factor User Authentication with Key Agreement Scheme Based on Elliptic Curve Cryptosystem

Table 2

Security properties comparison.

	Our scheme	Yang and Chang’s scheme [15]	Islam and Biswas’s scheme [16]
Mutual authentication	Yes	Yes	Yes
Key agreement	Yes	Yes	Yes
Forward secrecy	Yes	No	Yes
User anonymity	Yes	No	Yes
Server spoofing attack	Yes	Yes	Yes
Insider attack	Yes	Yes	Yes
Impersonation attack	Yes	Yes	Yes
Stolen smart card attack	Yes	N/A	N/A
No key control	Yes	Yes	Yes
Replay attack	Yes	No	Yes
No key control	Yes	No	No