A Secure Fair Exchange for SMS-Based Mobile Payment Protocols Based on Symmetric Encryption Algorithms with Formal Verification

Table 6

Comparison of cryptographic operations.

	[1]	[5]	[6]	[7]	[8]	[3]	[9]	[25]	Purchase Credit	Making Payment
Symmetric Encryption	6	-	-	3	2	5	9	3	4	10
Asymmetric Encryption	-	4	3	4	4	-	-	5	-	-
Message Authentication Code	3	-	-	3	-	-	-	2	2	4
Hash Function	-	-	-	-	4	2	1	-	2	3
Number of Messages	9	6	5	6	6	7	9	6	4	7
Number of Parties	4	4	2	5	3	3	4	5	3	4