10. With the ECB mode of operation of DES, if there is an error in a block of the transmitted ciphertext, only the corresponding decrypted block is affected. However, in the CBC mode (shown in figure below), this error propagates. For example, referring to the figure below, an error in transmitted Cobviously corrupts P and P 5+5= Are any decrypted blocks beyond Pand P2 affected if the error is only in the transmitted C1? Explain. 10 points- a. b. Suppose that there is a bit error in the plaintext version of P1. Through how many ciphertext blocks is this error propagated? Explain. Time ! Time ? Time n C1 K Decrypt | | K| Decrypt K | Decrypt