How can you verify that the decrypted message is identical to the original message?

To verify that the decrypted message is identical to the original message, you can use the diff command to compare the original file and the decrypted file byte-for-byte. Here’s how you can do it:

1. Use the diff command in your terminal:

   diff original.txt decrypted.txt

2. If the files are identical, there will be no output from the diff command. If there are differences, diff will display the lines that differ between the two files.

Alternatively, you can also use the cat command to display the contents of the decrypted file and visually inspect it against the original file:

cat decrypted.txt

This way, you can confirm that the decrypted message matches the original message.