Encrypt or decrypt a file

One of the more practical uses for your Cryptographic Coprocessor is encrypting and decrypting data files.

You can use one of these cryptographic methods to protect a file:

• Treat the whole file as a string of bytes (which is the method the program example uses).
• Encrypt each record or part of each record.

Write your own program protect data in many different formats, not just data files.

• Example: Encrypting data with your Cryptographic Coprocessor
  Change this program example to suit your needs for encrypting data with your Cryptographic Coprocessor.