Answers are anticipated to require a short paragraph. Say $5-6$ lines at most. However, no minimum or maximum size is specified. Use your judgement. Stay on topic and address the question.$\mathrm{.}8.[0]$ The OFB mode is discussed in slides $16,17$ of module $3\mathrm{.}9.$ Explain the following statement: $"$In OFB mode, a bit flip in c for i $>0$ only causes a bit flip in message block mi$.$ However, a bit flip in co $($i$.$e$.,$ in IV$)$ will result in all the plaintext blocks being recovered incorrectly."$9.[0]$ Why do we limit the number of queries to Encryption or Decryption oracles in the security analysis of various encryption schemes to be polynomial in the security parameter n$?10.[$S$]$ Is it possible for the ciphertext to be of shorter length than the plaintext? Let us say the encryption scheme satisfies Authenticated Encryption criteria. $($Plz do not use chat gpt plz thank you $)$I ll do downvote if its match with chat gptAlso ans by no $8,9,10$ thank u