Write an Algorithm/ Program using the Play-Fair Cipher method in the language C++ The program must have 1. Step by step explanation on the code 2. The program must be able to use any key word that is entered. 3. The program must be able to use any message that is entered. 4. The grid is 5x5 (Actually include the chart) (Explain why you need to declare it this way or why use this variable) (Ask to enter keyword) (Ask to enter the message) Example ABCDE FGHIK LMNOP Q R STU VWXY Z 5. The purpose of this program is to be able to encrypt any message that is given a and key word of their choice by using the play fair scheme 6. When the code runs it should ask: Enter a key word? Enter the message? Results should be: An example encryption, "we are discovered, save yourself" using the key square shown at the beginning of this section plaintext: wearediscoveredsaveyourselfx ciphertext: ugrmkcsxhmufmkbtoxgcmvatluiv