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(Solved): With The ECB Mode, If There Is An Error In A Block Of The Transmitted Ciphertext, Only The Correspon...
With the ECB mode, if there is an error in a block of the transmitted ciphertext, only the corresponding plaintext block is affected. However, in the CBC mode, this error propagates. For example, an error in the transmitted C1 (Figure 2.9) 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 ciphertext blocks is this error propagated? What is the effect at the receiver?
L acrypt Encrypt Encrypt Encrypt C2 (a) Encryption Decrypt Decrypt Decrypt (b) Decryption
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a. No,because p3 is corrupted if and only if there is a error in c2. similarly for p4,p5...pn. The error in c1 directly effects p2 not p3,p4,
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