Question: Encryption modes are needed in block cipher because: Group of answer choices Plaintext that needs to be encrypted can be smaller than the block size

Encryption modes are needed in block cipher because:
Group of answer choices
Plaintext that needs to be encrypted can be smaller than the block size
Plaintext that needs to be encrypted can be same as the block size
Plaintext that needs to be encrypted can be longer than the block size
None of the above

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