Find keys d and e for the RSA cryptosystem

Reference no: EM132354837

Questions -

Question 1: Use the Affine cipher method to encrypt the following plaintext:

Summer Term Completed

Key length K₁ = 5 and K₂ = 3

Question 2: Use the affine cipher to decrypt the following cipher-text COME with the key pair (7, 2) in modulus 26.

Question 3: Assume that Dominique and Pricilla agreed to use an auto key cipher with initial key value k₁ = 11. Now Dominique wants to send Pricilla the following message:

"THE CLASS IS CANCELLED". To Encrypt the message before transmitting it over the Internet

Question 4: Use the Vigenere Cipher method to encrypt the following:

"PLEASE SEE ME TOMORROW". Key stream = ANALOG

Question 5: a) Find keys d and e for the RSA cryptosystem where p=5, q=3.

b) Encrypt the following plaintext BA.

c) Decrypt your cipher-text in question b).

Note - Remember: You must show all the steps of your work.

Reference no: EM132354837

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