An Improved Genetic Algorithm for Developing Deterministic OTP Key Generator

Table 1

Encryption and decryption process of conventional OTP cipher using modular arithmetic 26. : plaintext, : plaintext code, : secret key, : key code, : ciphertext, mod (26) and mod (26). From , is obtained as follows: if is +ve; otherwise .

Encryption
	O	N	E	T	I	M	E	P	A	D
	14	13	4	19	8	12	4	15	0	3
	V	M	C	E	A	P	H	I	N	R
	21	12	2	4	0	15	7	8	13	17
	9	25	6	23	8	1	11	23	13	20
	J	Z	G	X	I	B	L	X	N	U
Decryption
	J	Z	G	X	I	B	L	X	N	U
	9	25	6	23	8	1	11	23	13	20
	V	M	C	E	A	P	H	I	N	R
	21	12	2	4	0	15	7	8	13	17
	−12	13	4	19	8	−14	4	15	0	3
	14	13	4	19	8	12	4	15	0	3
	O	N	E	T	I	M	E	P	A	D