A Secure Ciphertext Retrieval Scheme against Insider KGAs for Mobile Devices in Cloud Storage

Table 1

A comparison of various schemes.

Schemes	Inside KGAs	Outside KGAs	ZC	ZT	TrC	TeC	CiC
[28]	NO	YES		2	2
[17]	NO	NO
[29]	YES	YES	2		2		2
[25]	NO	YES
[27]	NO	YES		2
Ours	YES	YES					3