An Efficient and Provably Secure Anonymous User Authentication and Key Agreement for Mobile Cloud Computing

Table 4

Comparison of security properties.

	[22]	[26]	[27]	[28]	[24]	[29]	[25]	[30]	Ours
No password verifier-table	√	N/A	√	√	√	√	x	x	√
Password friendly	√	N/A	√	x	x	√	x	x	√
No password exposure	√	N/A	√	√	√	√	x	√	√
No smart card loss attack	x	N/A	x	√	x	x	x	√	√
Resistance to known attacks	√	x	x	√	x	x	x	x	√
Sound repairability	x	N/A	x	x	x	x	x	x	√
Provision of key agreement	√	√	√	√	√	x	√	√	√
No clock synchronization	√	√	x	x	√	√	√	√	√
Timely typo detection	√	N/A	√	x	√	√	x	x	√
Mutual authentication	√	√	√	√	√	√	√	√	√
User anonymity	√	x	√	x	√	√	x	√	√
Forward secrecy	√	√	x	√	x	√	x	x	√