Cryptography Reference
In-Depth Information
Diagram 3.5 Blowfish Decryption
Ciphertext (64 bits)
L ( d )
0
(32 bits) R ( d )
0
(32 bits)
L ( d )
0
R ( d )
0
P 18
+
Roun d 1
F
R ( d )
1
−−−−→
+
R ( d )
1
L ( d )
1
L ( d )
1
R ( d )
1
. . .
. . .
P 3
+
Round 1 6
F
R ( d )
16
−−−−→
+
R ( d )
16
L ( d )
16
L ( d )
16
R ( d )
16
R ( d )
16
L ( d )
16
P 1
+
+
P 2
L ( d )
17
R ( d )
17
Plaintext (64 bits)
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