4 Amaliy ish. Mavzu: n bitli skremberlarni qurish va davrini hisoblash. 14-variant. 1

4 - Amaliy ish.

Mavzu:N bitli skremberlarni qurish va davrini hisoblash.

14-variant.

1)

14) f(x) =+1

Dastlabki holat -

Dastlabki kalit -

1. 
   100101110011
   
2. 
   110010111001
   
3. 
   111001011100
   
4. 
   111100101110
   
5. 
   111110010111
   
6. 
   111111001011
   
7. 
   111111100101
   
8. 
   111111110010
   
9. 
   111111111001
   
10. 
    111111111100
    
11. 
    111111111110
    
12. 
    111111111111
    

K=110011101001

Kalit uzunligi – 12.

2)

№	1	2	3	4	5	6		7	8	9	10	11	12	13
Harflar	A	B	C	D	E	F		G	H	I	J	K	L	M
2lik	00000	00001	00010	00011	00100	00101		00110	00111	01000	01001	01010	01011	01100
№	14	15	16	17	18	19		20	21	22	23	24	25	26
Harflar	N	O	P	Q	R	S		T	U	V	W	X	Y	Z
2lik	01101	01110	01111	10000	10001	10010		10011	10100	10101	10110	10111	11000	11001
№	27	28	29	30	31		32
Harflar	!	@	#	$	&		*
2lik	11010	11011	11100	11101	11110		11111

KALIT :11001 11010 01

Shifrlash:

QOZOQBOYEVIXTIYOR

Q O Z O Q B O Y E

10000 01110 11001 01110 10000 00001 01110 11000 00100 XOR

11001 11010 01110 01110 10011 10011 10100 11001 01110

__________________________________________________________________

01001 10100 10111 00000 00011 10010 11010 00001 01010

10>J 21>U 24>X 1>A 4>D 19>S 27>! 2>B 11>K

V I X T I Y O R

10101 01000 10111 10011 01000 11000 10000 10001 XOR

01110 01011 10011 10010 11100 11111 10010 11100

___________________________________________________

11011 00011 00100 00001 10100 00111 00010 01101

28>@ 4>D 5>E 2>B 21>U 8>H 3>C 14>N

Shifrmatn:

JUXADS!BK@DEBUHCN

Deshifrlash:

JUXADS!BK@DEBUHCN

J U X A D S ! B K

01001 10100 10111 00000 00011 10010 11010 00001 01010 XOR

11001 11010 01110 01110 10011 10011 10100 11001 01110

__________________________________________________________________

10000 01110 11001 01110 10000 00001 01110 11000 00100

17>Q 15>O 26>Z 15>O 17>Q 2>B 15>O 25>Y 5>E

@ D E B U H C N

11011 00011 00100 00001 10100 00111 00010 01101 XOR

01110 01011 10011 10010 11100 11111 10010 11100

___________________________________________________

10101 01000 10111 10011 01000 11000 10000 10001

22>V 9>I 24>X 20>T 9>I 25>Y 15>O 18>R

Ochiq matn:

QOZOQBOYEVIXTIYOR