Security Enhanced EMV-Based Mobile Payment Protocol

Table 5

Comparison of the number of messages with EMV.

No.	Schemes
	EPMAR	ES	ED	EC
1	SELECT	SELECT	SELECT	SELECT
2	GET PROCESSING OPTIONS	GET PROCESSING OPTIONS	GET PROCESSING OPTIONS	GET PROCESSING OPTIONS
3	GET DATA	GET DATA	GET DATA	GET DATA
4	READ RECORD
5	VERIFY		INTERNAL AUTHENTICATE
6	READ RECORD
7	READ RECORD	READ RECORD	READ RECORD	READ RECORD
8	GENERATE AC	GENERATE AC	GENERATE AC	GENERATE AC
9	EXTERNAL AUTHENTICATE	EXTERNAL AUTHENTICATE	EXTERNAL AUTHENTICATE	EXTERNAL AUTHENTICATE
10	GENERATE AC	GENERATE AC	GENERATE AC	GENERATE AC