Which algorithm implements an unbalanced Feistel cipher?
A . Skipjack
B. RSA
C. 3DES
D. Blowfish
Answer: A
Explanation:
Skipjack
https://en.wikipedia.org/wiki/Skipjack_(cipher)
Skipjack uses an 80-bit key to encrypt or decrypt 64-bit data blocks. It is an unbalanced Feistel network with 32 rounds.
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