caesar cipher topics covered in this cryptography and ciphers encrypting and decrypting ciphertextplaintextkeysand symbols the caesar cipher ascii ordinal values the chr(and ord(functions the isalpha(string method the isupper(and islower(string methods cryptanalysis the brute force technique the program in this isn' really gamebut it is fun program the program will convert normal english into secret code it can also convert secret codes back into regular english again only someone who is knowledgeable about secret codes will be able to understand our secret messages because this program manipulates text to convert it into secret messagesyou will learn several new functions and methods for manipulating strings you will also learn how programs can do math with text strings just as it can with numbers cryptography the science of writing secret codes is called cryptography for thousands of years cryptography has made secret messages that only the sender and recipient could readeven if someone captured the messenger and read the coded message secret code system is called cipher the cipher used by the program in this is called the caesar cipher in cryptographywe call the message that we want to be secret the plaintext the plaintext could look like thishello therethe keys to the house are hidden under the flower pot converting the plaintext into the encoded message is called encrypting the plaintext the plaintext is encrypted into the ciphertext the ciphertext looks like random lettersand we cannot