PPT Slide

R--Block

^Bi

^Ki

+

Si

Si

LT

^Bi+1

^B31

^K31

+

+

^K32

^B32

Intermediate round (i=0,…,30)

Last round

Si

Si

Si

S7

S7

S7

S7

S7

S7

S7

Si

Si

128

128

4

128

4

4

4

4

4

4

128

128

4

4

4

4

4

4

4

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