Secure Information Sharing System for Online Patient Networks

Table 8

The comparison of group key security performance.

Scheme	Revocation Limit	Forward Secrecy	Backward Secrecy	Collusion Resistance
Staddon et al.		Yes	No	No
Liu et al.		Yes	No	No
Rams et al.		Yes	Yes	Yes
Guo et al.’s basic scheme		Yes	No	No
Guo et al.’s new scheme		Yes	Yes	Yes
SISS		Yes	Backward Accessibility	Yes

: maximum revoked users, : maximum session.