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Journal of Sensors
/
2016
/
Article
/
Tab 3
/
Research Article
Security Analysis and Improvements of Session Key Establishment for Clustered Sensor Networks
Table 3
Computation cost analysis of Lee and Kim’s scheme [
17
] (during
sessions).
Phases
Nodes
Operations
SHA1
64-bit AES
163-bit ECDH
Encryption
Decryption
Key generation
Key exchange
Procedure 2
Gateway
(
times)
Cluster head
0
0