A Lightweight Authentication with Dynamic Batch-Based Group Key Management Using LSTM in VANET

Table 2

Running times of different operations.

Operation	Execution time (ms)
: bilinear pairing	4.2
: map to point hash function	4.4
: scaler multiplication	0.4
: general hash operation	0.0001
: operation time on LSTM	0.737
: execution time for calculating the elliptic curve point multiplication	0.442
: execution time for elliptic curve point addition	0.0018
: execution time for point addition to bilinear pairing	0.0071
: execution time for exponential operation	0.6