How does one use the RSA algorithm to verify that a recipient is who they claim to be? How can a sender in this situation ensure that only the intended recipient can decipher the message?

Consider a message M which is to be encrypted with RSA algorithm.Describe the steps in the encryption and decryption algorithms, including an explanation of the symbols and terms used paying particular attention to the keys employed in encryption and decryption and the size of the message?

What exactly is the difference between differential and linear cryptanalysis when it comes to deciphering messages?

Should a nonce be encrypted? O Yes, it prevents the message from being hacked. No, otherwise Bob (the receiver) couldn't read the nonce. O No, and you should never use a nonce in the first place. O Yes, otherwise Oscar (the enemy) would be able to intercept it.

how to do this; Given an RSA public and private key of (note that not all of the private key is given):N = 3065977e = 425d = 713237 Decrypt the following message that has been encrypted using the public key above: 1559791

Encrypt the messageWATCH YOUR STEPby translating the letters into numbers, applying the encryption function f(p) = (−7p+2), and then translatingthe numbers back into letters

B

A simple cyclic substitution cipher replaces each English letter with one that is n letters away in the alphabet. What is the plaintext for the following ciphertext, which was encrypted using a simple substitution cipher: XWNVTMBHG BL PATM KXFTBGL TYMXK T IXKLHG ATL YHKZHWWXG PATM HGX ATL EXTKGXW BG LVAHHE

Let's encrypt a message using RSA: Choose p = 7 and q = 11, and then select e=13. a.Compute d b.Select plaintext message x=7. Produce the ciphertext y using the fast exponentiation algorithm. c. Decrypt the ciphertext (y) to verify that the initial plaintext (x) is produced. Again, please use the fast exponentiation algorithm.