What is the effect of a single-bit error in the ciphertext

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1. Consider a stateful variant of CBC-mode encryption where the sender simply increments the IV by 1 each time a message is encrypted (rather than choosing IV at random each time). Show that the resulting scheme is not CPA-secure

2. What is the effect of a single-bit error in the ciphertext when using the CBC, OFB, and CTR modes of operation?

Reference no: EM131241501

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