# plaintext decrypted form a cipher text using key = 3 in Caesar Cipher and that plain text with the following ciphertext to get the key [closed]

how to use the plaintext from that was decrypted form a cipher text using key = 3 in Caesar Cipher and using that plain text with the following ciphertext to get the key.

• for the second exercise: k=4, you have to arrange ciphertext in rail fence and then u can get plain text.
– SSA
Jan 17 at 11:20

• $${C= (P+k)mod26}$$ , you will get cipher as $${"TIQEPPIBICVYEPIWGWHERWCEYIX"}$$