Mobile Device Based Dynamic Key Management Protocols for Wireless Sensor Networks

Table 4

Comparison of the related works.

Protocol	Our scheme	Cheng and Agrawal [6]	Liu and Ning [7]	Alcaraz et al. [27]
Security analysis	Complete	Partial (only captured node attack analysis)	Partial (only captured node attack analysis)	Yes
Provided mobile service	Yes	N/A	N/A	N/A
Proposed application	Yes	N/A	Yes	Yes
Time complexity analysis	Yes	N/A	N/A	N/A
Communication cost analysis	Yes	N/A	N/A	N/A
Stored cost; (cluster node)	Two session keys, itself ID, base station ID, mobile user ID, and RND	One session key and two polynomial functions	Not specific (it is dependent on the proposed three schemes; for example, key predistribution scheme overheads =	N/A
The time cost of key computation; (cluster node)	As shown in Table 1		Not specific	Not specific