Question: Given the following: - Plaintext: YORKTOWNSUNK - Key: NAVY - Initialization Vector: FROG - Blocksize: 4 What is the OFB ciphertext? QFAO YFAP KLMK QFBO

Given the following: - Plaintext: YORKTOWNSUNK - Key: NAVY - Initialization Vector: FROG - Blocksize: 4 What is the OFB ciphertext? QFAO YFAP KLMK QFBO FREC KLMK QFAO FREC SRZA SRUE FREC SRZA Question 24 Given the following: - Plaintext: 93D - Initialization Vector: E16 - Simple Cipher: Rotate left 3 bits and invert result - Blocksize: 4 What is the CBC ciphertext in hexadecimal? 447 443

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