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In OFB Transmission errors do not propagate: only the current ciphertext is affected, since keys are generated “locally”.

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In OFB Transmission errors do not propagate: only the current ciphertext is affected, since keys are generated “locally”.

(a) True

(b) False

I got this question in an internship interview.

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

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Correct option is (a) True

For explanation: Yes, transmission errors do not propagate in OFB mode because of the locally generated key.

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