Research Article

Dynamic Rule Encryption for Mobile Payment

Table 1

Substitution look-up table.

InputOutput

Nibble  100000111
00011110
00100100
00111101
01000001
01010010
01101111
01111011
10000011
10011010
10101000
10110110
11000101
11011100
11101001
11110000

Nibble  200001101
00011111
00101100
00111000
01000010
01010100
01101001
01110001
10000111
10010101
10101011
10110011
11001110
11011010
11100000
11110110