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A tweak is used in XTS-AES mode to provide a different output for the same input PT and same key.

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A tweak is used in XTS-AES mode to provide a different output for the same input PT and same key.

(a) True

(b) False

The question was asked in semester exam.

I need to ask this question from DES Modes of Operation topic in section Advanced Encryption Algorithm and Block Cipher Operation of Cryptograph & Network Security

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Correct option is (a) True

Easy explanation: The statement is true for XTS-AES mode of operation.

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