Cryptography

Computer Science & Statistics at University of Rhode Island
\(L_{i-1}\)
\(R_{i-1}\)
\(f_{k_i,r_{i-1}}\)
\(\oplus\)
\(R_{i}\)
\(L_{i}\)
\(key_i\)
\(\oplus\)
S1-Box
101
010
001
110
011
100
111
000
001
100
110
010
000
111
101
011
S2-Box
100
000
110
101
111
001
011
010
101
011
000
111
110
010
001
100
Delay
Character Encodings:
a: 000000
A: 011011