Esempio sul DES (cont.)

0000100 7

1011001 14

1101001 21

1010001 28

1111111 35

0011001 42

0000001 49

1000010 56

RS[1] = 1

s[1]

28 bits

d[1]

28 bits

CK: 56-ᡨ

K[1]

101101 6

011011 12

000001 18

100000 24

001001 30

100010 36

011010 42

011011 48

6 colonne

rotazione a sinistra ciclica

D[0]

00000000 8

00000000 16

11100000 24

11001101 32

E

32

48

100000 6

000000 12

000000 18

000001 24

011100 30

000001 36

011001 42

011010 48

6 colonne

K[1] @

001101 6

011011 12

000001 18

100001 24

010101 30

100011 36

000011 42

000001 48

x1 x2 x3 x4 x5 x6

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