Decrypt these messages that were encrypted using the Caesar cipher.a) EOXH MHDQVb) WHVW WRGDBc) HDW GLP VXP

Use the RSA cipher with public key  n = 713 = 23 · 31  and  e = 43.   Decrypt the given ciphertext and find the original message. (Assume the letters of the alphabet are encoded as follows: A = 01, B = 02, C = 03, ..., Z = 26.)   Decrypt:   476 089 048 129

Determine, if possible, the affine cipher C = aP + b (mod 26) that sends plaintext "OK" to ciphertext "HI."

Apply the affine cipher formula C=(5P + 2) mod 26 to encript "LASER PRINTER". JGNSA DUNTXNA JSNAS DNUTXAN JGSAN DNUTXAN JGSAN DUNXANT

Decrypt the message CFEJFE which was encrypted using the affine cipher: Alphabet: A = 0, B = 1,..., Z = 25 Message: f(p) = (15p+5) mod 26

a. Given p=23, q=7, and e=5, generate the public key (n,e) and the private key (n,d) using RSA Key generation algorithm.  b. Given Bob's  public key of (85, 7) and private key of (85, 55), show how Alice can encrypt m=7 to send to Bob. Show the ciphertext.   c. Given Bob's public key of (85, 7) and private key of (85, 55), show how Bob can decrypt the ciphertext y=8 received from Alice. Show the plaintext.   d.  Using the fast exponentiation method (page 182), determine 535 mod 47

Decode the number using the given private key. Decode the number M = 38 using the private key d = 17 and n = 77. Assume you are decoding the number using the RSA cryptosystem. Note: You can use the Modular Exponentiation calculator to help with the calculation.

Encrypt "Meet me at Central train station" using AutoKey Cipher. The key is "H".