Decryption of the intercepted message Program plan: Include necessary header files. Declare the namespace. Declare the function “decrypt()”. Define the function “decrypt()”. Declare the necessary variables. Use “for” loop to iterate the string length using the function “strlen()”. Encode the string and assign the result into the variable “Encrypt”. The “if” loop check the condition. True, use the formula to decrypt the message. Otherwise, use the formula to decrypt the message. Assign the decrypted message into the variable “decode[i]”. Define the “main()” function. Declare and initialize the necessary variables. Use “for” loop to iterate the number or key between “1” to “100”. Call the function “decrypt()”. Print the result. Return “0”.

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Chapter 8, Problem 11PP

Program Plan Intro

Decryption of the intercepted message

Program plan:

Include necessary header files.

Declare the namespace.

Declare the function “decrypt()”.

Define the function “decrypt()”.

Declare the necessary variables.

Use “for” loop to iterate the string length using the function “strlen()”.

Encode the string and assign the result into the variable “Encrypt”.

The “if” loop check the condition.

True, use the formula to decrypt the message.

Otherwise, use the formula to decrypt the message.

Assign the decrypted message into the variable “decode[i]”.

Define the “main()” function.

Declare and initialize the necessary variables.

Use “for” loop to iterate the number or key between “1” to “100”.

Call the function “decrypt()”.

Print the result.

Return “0”.

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