Struttura del DES (cont.)

32

32

B

S[0]

D[0]

S[1]=D[0]

D[1]=S[0] @ f(D[0],K[1])

D[16]=S[15] @ f(D[15],K[16])

S[16]=D[15]

TF

C

TI

K[1]

48

48

K[16]

48

64

32

32

S[2]=D[1]

D[2]=S[1] @ f(D[1],K[2])

K[2]

48

S[15]=D[14]

D[15]=S[14] @ f(D[14],K[15])

K[15]

48

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