Virtual Labs

What is the length of the initial key used in DES before subkey generation?

a: 56 bits Explanation

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b: 64 bits Explanation

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c: 48 bits Explanation

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d: 32 bits Explanation

Explanation

In DES key generation, what is the purpose of the permutation boxes (P-boxes)?

a: To expand the key size Explanation

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b: To compress the key size Explanation

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c: To permute the key bits Explanation

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d: To encrypt the data Explanation

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Experiment 1 - DES Key Generation