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  3. this is cryptography mixed with linear algebra please answer both...

Question: this is cryptography mixed with linear algebra please answer both...

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(10 points) 3. Hill cipher encryption Given the Hill encryption matrix 1 4 7 I l 5 11 I please do the following: a. Encrypt the plaintext winter. Your answer is the ciphertext containing six uppercase letters. b. Calculate and write down the decryption matrix for the above encryption matrix.
This is cryptography mixed with linear algebra
Please answer both a and b, thank you.

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