Security and Communication Networks

Research Article

Cryptanalysis and Enhancement of an Authenticated Key Agreement Protocol for Dew-Assisted IoT Systems

Table 5

Comparison of the communication efficiency.
SchemeCommunication efficiency
Computation costCommunication cost (bits)
SMDAS1184
He et al. [27]3296
Ying et al. [28]3840
e-SMDAS1024
Note.: point addition in elliptic curve group; : exponentiation operation in cyclic group; : hash function; : bilinear map; : exponentiation operation over bilinear pairing; : modular addition in cyclic group; : encryption/decryption operation.