Security requirements

[12]

[13]

Proposed scheme

Anonymity

Yes

Yes

Yes

Unforgeability

Yes

Yes

Yes

Strong/weak unlinkability

Weak unlinkability

Weak unlinkability

Strong unlinkability

Nontransferability

No

No

Yes

Exculpability

Yes

Yes

No

Dynamic membership

Yes

No

Yes

Traitor detection

No

No

Yes