Efficient Multifactor Two-Server Authenticated Scheme under Mobile Cloud Computing

Table 5

Security comparison.

	Shen in [16]	Li in [25]	MTSAS
Message confidentiality	✓	✓	✓
Message integrity	✓	✓	✓
Resist key guessing attack	✓	✓	✓
Resist replay attack	✓	✓	✓
Forward Security	✓	✓	✓
User anonymity	✗	✓	✓
Resist biometrics template attack	✗	✓	✓
Resist data leakage of the server	✗	✗	✓
Two servers	✗	✗	✓
Divide the security level	✗	✗	✓