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XOR and addition operations take place on bytes of size

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XOR and addition operations take place on bytes of size

(a) 8 bits

(b) 16 bits

(c) 32 bits

(d) 64 bits

I had been asked this question in an interview for internship.

My enquiry is from Blowfish Algorithm in section Pseudorandom Number Generation and Stream Ciphers and More Block Ciphers of Cryptograph & Network Security

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Best answer
Correct choice is (c) 32 bits

The best explanation: XOR and addition operations take place on bytes of size 32 bits.

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