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Why private-public keys cannot be used in creating a mac

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Reference no: EM131894566

Problem

1. In RSA, given n = 12091, e = 13, and d = 3653 encrypt the message "THIS IS TOUGH" using the 00 to 26 encoding scheme. Decrypt the ciphertext to find the original message. Use 4-digit plaintext or ciphertext blocks.

2. In RSA, why can't Bob choose 1 as the public key e?

3. Explain why private-public keys cannot be used in creating a MAC.

Reference no: EM131894566

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