In this, CRC Calculation and Verification are both implemented using C language.

Using the Polynomial: 1100 1101 1010 1 and number of padding zeros = length of polynomial - 1.

1. Prompt the user to ender the message in hexidecimal.

2. translate the message from Hex to binary and print out binary message.

3. Print out modified binary message with padding and given polynomial in binary

4. Calculate CRC and print out intermediate results.

5. Print out CRC value and print out the input message with CRC attached in Hex format.

6. Strart verification and prompt the user to enter the message in hex format. You can use the generated message in 5.

7. translate from hex to binary and print out binary.

8. Calculate CRC for the input message.

if result is all zeros, print out success message, otherwise, print fail message.