Dynamic Rule Encryption for Mobile Payment

Table 2

Example of matrix element substitution.

Input	Pattern		Output
	Nibble 2 (b7 b3 b5 b1)	Nibble 1 (b6 b2 b4 b0)
1000 1001	1100	0001	1110 1110
0110 0010	0011	1000	1000 0011
0110 0101	0010	1101	1100 1100
1000 0011	1001	0001	0101 1110