Use a Caesar Cipher with digraph coding to encrypt the following plaintext: 'buffer' with a key of K=100. (Show your intermediate calculations and formulas used)

Give the answer to each question. Find the answer my coding using python

8. Also, in the Caesar cipher you could not encrypt two different letters to be the same letter (meaning if “p" → "S" then nothing else can go to “S"). Is this true of the Vigen'ere cipher too?

Suppose that we decide to use the 8-bit ASCII encoding for alphabetic charac- ters with block size of one character (or letter). Using the RSA cryptosystem, let the public key is (2993, 217), where the two primes p = 41 and q = 73. Determine the private key (n, e) and encrypt some characters (not necessarily all characters - but make sure you include the first character "M" in the one you choose) of the word "MONEY", where M = 77, O = 79, N = 78, E = 69, Y = 89 according to the 8-bit ASCII encoding table. Show ALL workings.

(1) Find a quote that you like. Make sure that the total number of characters is at least 50 and no more than 100.  (2) Then pick a number that is between 4 and 24 as your additive key.  (3) Create a table of correspondence of 26 alphabets in plaintext and the ciphertext.  (4) Use the table of correspondence to encode the quote you found in Part (1). Post the encrypted message:For example, here is a quote from John DeweyFailure is instructive. The person who really thinks learns quite as much from his failures as from his successes.We will use additive key 17. The table of correspondence between plaintext and ciphertext is as follows.(attached)      Thus the encrypted message isWRZ CLI VZJ ZEJ KIL TKZ MVK YVG VIJ FEN YFI VRC CPK YZE BJC VRI EJHLZK VRJ DLT YWI FDY ZJW RZC LIV JRJ WIF DYZ JJL TTV JJV J(5) Pick an encrypted message from your classmate and try to decrypt it. Remember to use the frequency table because you will not have access to the additive key. Make sure to include all…

Encrypt the first 4 letters of your last name as a block of data to be encrypted. (Let A=1, B=2, C=3,...Z=26). Decrypt the encrypted number to demonstrate that your system works.   lastname is john

Write the solution in detail:A) Encrypt the following message using poly-alphabetic cipher:Plaintext: “HELLO WORLD”Key:Shift the first letter three positions to its rightShift the second letter five positions to its rightShift the third letter seven-position to its left B) Using the same key, decrypt the following text:Cipher text= “vjv xwb wd”

6. Confusion hides the relationship between the ciphertext and the plaintext. i) True ii) False

Question # 1: Use the Affine cipher method to encrypt the following plaintext:Summer Term CompletedKey pair (K1, K2) = (5, 3) Remember: i need a Mathematics solution not computer program You must show all the steps of your work

45. Encrypt the message “success is not final, failure is not fatal” using a columnar transposition cipher for the given keyword “algebra” (1 6 5 4 3 7 2)..