Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Computer Science Posted 23 Sep 2017 My Price 6.00

ECB mode

With the ECB mode, if there is an error in a block of the transmitted cipher text, only the corresponding plaintext block is affected. However, in the CBC mode, this error propagates. For example, an error in the transmitted c1 (Figure 6.4) obviously corrupts P1 and P2.

a. Are any blocks beyond P2 affected?

b. Suppose that there is a bit error in the source version of P1  Through how many cipher text blocks is this error propagated? What is the effect at the receiver?

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Answers

Maurice Tutor
(5)
Status NEW Posted 23 Sep 2017 09:09 AM My Price 6.00

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