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Which block mode limits the maximum throughput of the algorithm to the reciprocal of the time for one execution?

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Which block mode limits the maximum throughput of the algorithm to the reciprocal of the time for one execution?

(a) OFB

(b) CTR

(c) CBC

(d) ECB

I have been asked this question in semester exam.

My doubt is from DES Modes of Operation in chapter Advanced Encryption Algorithm and Block Cipher Operation of Cryptograph & Network Security

1 Answer

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Best answer
The correct choice is (b) CTR

Explanation: The CTR mode of operation limits the maximum throughput of the algorithm to the reciprocal of the time for one execution.

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