An Efficient Three-Party Authentication Scheme for Data Exchange in Medical Environment

Table 3

Comparison of computation and communication costs with RSA-based 3PAKA schemes.

	Chang et al.’s scheme [11]			Tso’s scheme [12]			Farash  and  Attari’s scheme [13]			Deebak et al.’s scheme [14]			Our scheme
Exponentiation	3	2	3	3	3	4	3	2	2	1	1	2	1	1	0
X-or	1	1	2	0	0	4	0	0	0	2	2	2	0	0	0
Multip./division	0	0	0	0	0	0	2	2	0	0	0	0	0	0	0
Random number	1	1	2	1	1	2	1	1	2	0	0	0	0	0	0
Hash	4	2	4	4	2	4	4	3	5	6	6	4	0	0	1
Encryption/decryption	0	0	0	0	0	0	0	0	0	0	0	0	2	2	2
Transmission messages	8	5	5	8	5	6	5	3	9	3	6	10	3	1	3
Transmission rounds	3	1	2	3	1	2	2	1	3	1	1	2	1	1	2