Lightweight Cryptographic Algorithms for Guessing Attack Protection in Complex Internet of Things Applications

Table 4

P-box for the PRESENT algorithm.

Input	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
P (input)	0	16	32	48	1	17	33	49	2	18	34	50	3	19	35	51
Input	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
S (input)	4	20	36	52	5	21	37	53	6	22	38	54	7	23	39	55
Input	32	33	34	35	36	37	38	39	40	41	42	43	44	45	46	47
S (input)	8	24	40	56	9	25	41	57	10	26	42	58	11	27	43	59
Input	48	49	50	51	52	53	54	55	56	57	58	59	60	61	62	63
S (input)	12	28	44	60	13	29	45	61	14	30	46	62	15	31	47	63