1. What is the maximum size of the key in blowfish algorithm?

a) 256 bits

b) 512 bits

c) 56 bytes

d) 48 bytes

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2. Blowfish encrypts blocks of plaintext which have size

a) 256 bits

b) 64 bits

c) 72 bits

d) 128 bits

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3. The blowfish algorithm can be implemented on 16 bit processors.

a) True

b) False

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4. What is the minimum size of the key in blowfish algorithm?

a) 64 bits

b) 32 bits

c) 56 bits

d) 48 bits

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5. The blowfish algorithm’s key expansion converts a key of at most 448 bits into several subkey arrays totaling ___________ bytes.

a) 4096

b) 4608

c) 4168

d) 4864

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6. Blowfish algorithm uses the Feistel Structure.

a) True

b) False

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7. XOR and addition operations take place on bytes of size

a) 8 bits

b) 16 bits

c) 32 bits

d) 64 bits

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8. How many S-boxes are present in the blowfish algorithm?

a) 2

b) 4

c) 6

d) 8

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9. How many entries are present in each of the S-boxes present in the blowfish algorithm?

a) 256

b) 512

c) 1024

d) 64