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Q11) For the 3 block ciphers we covered in class... I. (1 pt) Why TEA is almost a Feistel cipher? II. (0.5 pt) Does the

Q11) For the 3 block ciphers we covered in class... I. (1 pt) Why TEA is almost a Feistel cipher? II. (0.5 pt) Does the round function for DES need to be invertible? (1.5 pts) Why? III. (0.5 pt) Do the round functions for AES need to be invertible? (1.5 pts) Why

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