Schemes

Number of

Parties

User Anonymity

and Untraceability

Conditional

Privacy Preservation

Patient Data

Privacy against Insiders

Session Key

Establishment between Patient & Doctor

Patient Revocation

Huang et al.’s [13]

3

No

No

No

No

No

Layouni et al.’s [15]

2

Yes

Yes

Yes

No

No

Proposed

3

Yes

Yes

Yes

Yes

Yes